ZAPCO ST-X Series Manual

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ZAPCO ST-X Series Manual | Manualzz
 Contents
Item
Mission Statement
The Zapco Studio Series
Warnings (avoid future problems)
Install Sense
Making Power
Basic Installation Guidelines
Gain Setting
Safe Sound
Studio-X Amps
ST-2X
ST-4X || (XP XSQ)
ST-5X
Studio- XM Amps
ST-500XM ||
ST-850XM
ST-1000XM ||
ST-1350XM ||
ST-1650XM II
ST-2000XM II
Strapping Mono Amplifiers
Sample System Connections
ST-2X
ST-4X
ST-5X
Studio Amp Specifications
Page
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Mission Statement
Committed to Excellence
ZAPCO is dedicated to the pursuit of audio fidelity. Our prime objectives
are to design and manufacture audio products of unsurpassed quality, to
provide unparalleled support and service for these products, and to
conduct business in a manner that will enhance the quality of life for all
involved.
Experience
Knowledge from Doing
There is absolutely no substitute for experience; that is a simple fact of
life. Another simple fact is that ZAPCO has, for over thirty years, been the
leader in defining quality standards for the car audio industry. These years
of experience have led to a thorough understanding of the challenges that
are unique to the world of car audio. ZAPCO's relentless quest for sonic
purity consistently yields imaginative designs that utilize the most
innovative technologies. The resulting products set the criteria by which
all others in the industry are judged.
Zapco
Studio Series Amplifiers
With the studio Series of amplifiers Zapco brings the sound quality and
reliability that built the Zapco legend to an amplifier line that everyone can
afford.
Zapco has a reputation for sound reproduction and quality that is
unsurpassed. It is our dedication to sonic purity and our passion for
performance that built that reputation. With all the new amps coming into
the market, not one has been any threat to Zapco's standing as the
premium amp and processor line. Just check the audio competition scene
and the audio forums. The pros know what to use to win.
But not everyone wants to compete. The question was this. Could Zapco
put it's 40-years of audio experience to work to develop an amp for every-
day use? An amp that all can afford but that will stay true to the Zapco
heritage for sound and reliability?.
Absolutely! We can and we have! The new Studio amplifiers are a
testament to the fact that you can build a quality product with great sound
in an amplifier for every-day use.
The high quality 1% metal film resistors that we used in C2K and
Reference amps? They are right here in the Studio X. The high current
5532 Op-Amps from the C2K Competition amps are in the Studio X also,
and the Studio X uses high-end KEC outputs just like the Z and ZX series
amps.
While sound quality is always the number one factor in a Zapco design,
there are other factors in the Studio design that make them "every-day"
amps. The extruded aluminum chassis is more compact to make the
studio series an easier fit in today's smaller cars.
The feature set of the Studio amps provides you with all the system
versatility you need without adding additional components, with
everything from crossovers to preamp outputs, so multiple amps don't
require extra signal cables.
How about power? The Studio series Class A/B amps may not have the
power of our bigger competition amps, but these little powerhouses are
certainly not shy. The Studio-X class A/B full range-amps have over 50
watts RMS/ch at 400 and about 100 watts RMS/ch at 20. The Studio-X
Class D bass amps are 10 stable with power from 500W to as much as
2,000W.
Power, price, size, and performance. No it's not designed specifically for
competition. This is an amp designed to knock your socks of ... in your
car, for your daily use, every day.
Of course, if you do want to jump into the competition lanes with your new
ST-X series amp, you probably won't be alone.
So go ahead...Pop in your favorite disk, grab the volume, and see if you
don't agree. Dedication to sonic purity is definitely a good thing.
What's next? Only time will tell. But here's one thing you can count on.
As ZAPCO finds new ways to improve the state of the art, we will bring
them to you immediately, in all our products.
So! Enjoy this manual. We hope you will read it thoroughly. We have tried
to include all the necessary information for proper installation and set up
so that you can enjoy the full potential of your ZAPCO Studio Series
amplifier.
Warnings
ZAPCO highly recommends that a fuse or circuit breaker be placed within
18" of the battery. Although products have adequate internal protection,
it is possible that a pinched power wire between the component and the
battery may result in a fire. The protection device should be placed
where it can be accessed easily and all wiring should be routed safely
and correctly according to the following guidelines:
> Do not run wiring close to hot or spinning objects.
> Always use wire grommets when routing wire through the firewall or any
other metal panels.
> Make sure that the potential for pinched wiring is avoided by routing all
wires away from moving hinges and seats. This also includes brake,
gas and clutch pedals, hood and trunk hinges, etc.
Install Sense
As a manufacturer, Zapco has taken great pains to produce a product
that will give you many years of superior performance and reliability.
However, certain basic rules need to be followed if you want to achieve
the product's potential in your vehicle
It Takes Power to Make Power
The gauge of the power and ground wire is critical to your system.
If the wire gauge is too small your amp will never produce its rated power.
Even worse... Straining to produce power from insufficient current can
over-tax the power supply of your amp and cause amp failure.
See the chart below:
Recommended Wire Gauge
Up to 4 Ft 7 Ft 10 Ft 13 Ft 16 Ft 19 Ft 22 Ft 28 Ft
20A
35A
50A
60 A
85A
105A
125A
150 À
Be Safe: Add up the fuse recommendations of all the amps in your system.
Then see how long a run you will have from the battery to the amplifiers.
Now locate the wire gauge on the chart above.
i.e. If your amps need a total of 125 amps and your wire run will be 16ft
long you will need to use at least a 2 gauge wire. Anything less and your
car won't go boom. It'll just go Blaap! And you can damage your new
amplifier.
Ground Matters just as much as power. Electricity travels in a circuit.
The ground wire needs to be the same size as the power wire or your
current (and power) will be reduced. A weak ground connection will also
limit the current flow. You need a good solid ground connection to the
vehicle frame. Remember: A body panel is not a frame. Many metal body
panels never even make contact with the frame. Make sure you have a
Basic Installation Guidelines
solid ground to the frame, to guaranty you get full performance from your
system.
Fusing: In addition to the fuses at the amplifiers, always fuse the main
power lead at the battery to protect the vehicle in case of amp or wiring
failure. Contact an installation professional for further advice.
Mounting your Studio Series Amplifier is easy. Just keep in mind the
following guidelines:
* The amplifier may be mounted in any direction, on wood, metal or
carpet.
* The metal case of the amplifier may be grounded or left isolated.
* The amplifier requires adequate ventilation. Position the amplifier with
sufficient surrounding area for proper cooling.
e Keep any fan and vent end plates clear for proper internal cooling.
e Keep the amplifier out of the engine compartment and other locations
that may cause excessive heat or moisture.
e Do not mount the amplifier to a subwoofer enclosure or any other place
that may have excessive vibration!
Setting Gains (Input sensitivity)
Proper gain setting is one of the most important factors in setting up a
stereo system. At the same time, gain setting is most often done wrong.
Turning up the gain of an amp is the very last thing you should ever do to
a system. An amplifier is a step up transformer. Period. Any signal you
put in is boosted by a fixed factor. Music, hiss, or any other noise, it
doesn't matter. A large number of noise problems are simply a matter of
improper gain settings. The goal of gain setting is to achieve the
maximum amount of musical output from the amplifier while getting the
least amount of hiss or noise from the system. Your Studio Series
amplifier accepts an extremely wide range of input levels. As little as .25
volts to as much as 5volts at the RCA inputs. The basic gain setting is
very simple and requires no special tools. Whether you have a simple
system with a deck and an amp, or a system with a deck, line driver,
equalizer, crossover, and amp, the procedure is always the same. First,
hook up the system with all gain controls at minimum (turn the gain pots
fully counter-clockwise with a small screwdriver). Then turn on the head
unit and turn up the volume. If you achieve clean sound, and, more
5
volume than you want, you don't need to make any adjustments.
However, if you turn up the volume and begin to hear distorted sound
before it becomes loud, you are clipping (distorting) the deck (probably a
little over % volume). Turn the deck down just enough to hear clean
sound again, and then move to the next component in your system. With
the deck playing at “maximum clean volume” adjust the gain of the next
component to its “maximum clean volume” If you adjust your gains this
way, always starting at the head unit and working down the line to the
amplifier, you will get the most performance out of your amplifier(s) with
the least amount of unwanted distortion and noise.
Safe Sound
A quick word about very serious safety issue:
Continuous exposure to excessive sound pressure levels may cause
permanent hearing loss. It is not unusual for customers new to high-end
sound quality to complain that their Zapco amps sound wonderful, but
they just don't get "loud".
NOTE: A clean undistorted system simply will not sound loud. Distortion
is what makes a system "sound loud", not sound pressure.
Here's the problem: Having properly set gains will allow you to
comfortably play your Zapco system at a much higher SPL without
sounding "loud". However, the fact that it is now more comfortable to play
at a higher SPL does not mean it is safer. The functioning devices in your
ear do not have very good pain receptors So even if it does not “feel” like
it hurts, excessively high SPL absolutely will damage your hearing.
So, please practice safe sound!
Install Note For High level OEM Hook-up:
Speaker level input plugs: The 2 channel and 4 channe Studio
Amplifiers have speaker level inputs. There are 5 connections for
speaker level inputs. The fifth wire is “Signal Ground”. For best
performance and lowest noise this wire should be grounded at the
chassis of the factory head unit. Invest a little time now and you
will get better performance for years.
The Studio-X Amplifiers
Full range Class A/B Compact Chassis Amplifiers
The full range Studio X amps combine class A/B sound quality with a
compact chassis. These amps use top quality internal parts like 5532
op-amps and KEC output devices for top quality sound. These amps are
available in 2 channel, 4 Channel, and 5 Channel models.
ST-2X
The ST-2X is where the studio line starts. This is a full featured stereo
amplifier with plenty of power for Co-Ax's or small separates at the front
stage or even for a small woofer wired mono.
2 Channel
Compact Chassis
Class A/B
160 Watts RMS
80 watts RMS/Ch e 20
ST-2X Features
Variable LP/HP/Full Electronic Crossover + Variable bass boost
RCA pass through outputs e Hilevel inputs
- Switchable Auto-On Function
The ST-2X Controls and Connections
ST-2X Control End
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BASS BOOST CROSSOVER
+12 +6 0 © FULL pgHPF ©
HI-IN
© MIN © 40Hz 250Hz 50Hz 1KHz
© [EERE] [EEE] 9 |
RCA IN: connectors are to connect the ST-2X to an aftermarket head
unit
Bass Boost: allows 6dB or 12dB boost of bass frequencies
Crossover selector: determines high pass, low pass, or full range
HPF: If you use high pass, this control determines frequency between
50Hz-1KHz
LPF: If you use low pass, this control determines frequency between
40Hz to 250Hz
HI In: is the speaker level input plug. (See install note )
RCA Out: connects to another amp to “daisy chain” two amplifiers
from a single RCA head unit output.
ST-2X Power End
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1. LED Indicators: let you know the status of the amplifier. The green
4.
LED tells you the amp is on. The Red LED lets you know the amp is in
“protection” because of some problem with the system.
. Fuse: The fuse protects the car should a catastrophic problem occur
in the amp. Always replace with the same size fuse
. Speaker connections: The heavy duty terminal block provides positive
speaker connections. Simple insert the wire and cinch down the set
screw. Note that the Mono bridge positions here are L-toR +
GND: The amp should have a firm connection the car frame.
* See section "Install Sense”
5. REM: The remote terminal connects to the head unit remote out, or to
some other switched 12 volt source to turn on the amplifier.
6.+12V: The main 12 volt must be connected directly to the vehicle's
battery using wire of the proper gauge. * See section “Install Sense”
ST-4X 11
This is the amplifier for what matters most to you. There are three levels
of ST-4X amplifiers.
*The ST-4X is the standard studio series amplifier. An overall balance of
sound, power, and afford ability.
* The ST-4XSQ is for the listener who wants the most transparent sound and
the most refined sound stage. The "SQ" version gets the upgraded caps and
op-amps, and panel mount RCAs like the Z-series competition amps.
*The ST-4XPis for the listener who wants that extra punch at the bottom end
and who likes to rock out at high sound levels. The "P" version gets top
quality internals with higher voltage output devices for rock solid power.
4Channel
Compact Chassis
Class A/B
400 Watts RMS
ST-4X Il Features
- Variable Electronic Crossover - Variable bass boost
- RCA pass through outputs - Hilevelinputs
- Switchable Auto-on Function
ST-4X P
As above but high Voltage output devices are
added for an extra boost on power
ST-4X SQ
Adds Upgraded Caps and Op-amps for top sound
quality and Tiffany style RCA connectors for perfect
signal transfer
The layout of the controls on the input and output ends of the
ST-4X amps are all the same, so the illustrations below will serve all
three versions
10.
11.
12.
The ST-4X Controls and Connections
ST-4X Control End
1 2 3 5 6 7
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80Hz 3KHz 50Hz 250Hz . MAX . MAX 80Hz 3KHz
HPF LPF HPF
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14 13 12 11 10 9 8
Power and protection LEDs: show the operating condition
Rear Crossover selector: determines high pass, low pass, or full range
for the rear channels
Bass Boost: allows 6dB or 12dB boost of bass frequencies in the rear
channels
Rear Gain: This control balances output of the head unit to the input of
the amp and with the front amp channels
Rear RCA IN: connectors are to connect the ST-4X to an aftermarket
head unit rear outputs
Front RCA IN: connectors are to connect the ST-4X to an aftermarket
head unit front outputs
Front Crossover selector: determines high pass or full range for the
front outputs
HPF: If you use High Pass crossover, this control determines frequency
between 80Hz to 3Khz
Speaker Level input: The ST-4X has Hi-level input plugs for front and
rear speaker level inputs. *See Install notes of ST-2X
Front Gain: This control balances output of the head unit to the input
of the amp and with the rear amp channels
Rear Pass-through Outputs: These provide an RCA output to drive the
front channels if the head unit has only one RCA out.
(Connect a short RCA between the Rear out and the Front In)
LPF: If you use the rear low pass crossover, this control determines
frequency 20Hz to 1KHz
10
13. Auto-on Switch: lets you choose to have the amp on automatically
when you turn on a factory head unit
14.HPF: If you use the rear high pass crossover, this control determines
frequency 80Hz to 3KHz
ST-4X Power End
1 2 3 4
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GND REMOTE B+ 2X25A + LEFT - + RIGHT -
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A + LEFT - + RIGHT -
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1. GND: The amp should have a firm connection the car frame. * See
section “Install Sense”
2. REM: The remote terminal connects to the head unit remote out, or to
some other switched 12 volt source to turn on the amplifier.
3. +12V: The main 12 volt must be connected directly to the vehicle's
battery using wire of the proper gauge. * See section “Install Sense”
4. Speaker connections: The heavy duty terminal block provides positive
speaker connections. Simple insert the wire and cinch down the set
screw. Note that the Mono bridge positions are L+ to R -, for both front
and rear speaker sets
5. Fuses: The fuses protect the car should a catastrophic problem occur in
the amp. Always replace fuses with the same size fuse
11
ST-5X
A Full System in One Chassis
5 Channel
Compact Chassis
Class A/B
820 Watts RMS
ST-5X Features
e Variable Electronic Crossover e Variable bass boost
* Internal Mono Bass amp e 2 ch/4 ch input mode selection
The ST-5X Controls and Connections
ST-5X Control End
1 2 3 4 5 6 7 1
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A A A
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10 9 8
RCA IN: connectors for Front, Rear, and Sub are to connect the ST-5X to
an aftermarket head unit's outputs (See also item 9)
Front and Rear Gain: These controls balances the output of the head
unit to the input of the amp and balance the front-to-rear-to-sub levels.
Front and Rear LPF: controls set the crossover point when using the low
pass crossover filters.
Front and Rear Crossover: selectors determine high pass, low pass, or
full range for the front and rear channels.
Front and Rear HPF: controls set the frequency of the high pass
crossover
Subwoofer LPF: control sets the sub crossover frequency
12
Crossover switch: chooses low pass or full range for the sub output
Bass Boost: allows 6dB or 12dB boost of bass frequencies in the sub
channel
Gain setting: for input level for the subwoofer section
Input Mode selector: allows you to choose to use separate input RCAs
for the front and rear inputs, or to have channels 1 and 2 serve both
front and rear
ST-5X Power End
1 2 3 4
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GND REM +12V + CH3 -—Mono—+ CH4 - CHS5 -
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GND: The amp should have a firm connection the car frame. * See
section “Install Sense”
REM: The remote terminal connects to the head unit remote out, or to
some other switched 12 volt source to turn on the amplifier.
+12V: The main 12 volt must be connected directly to the vehicle's
battery using wire of the proper gauge. * See section “Install Sense”
Speaker connections: The heavy duty terminal block provides positive
speaker connections. Simple insert the wire and cinch down the set
screw. Note that the Mono bridge positions are L+ to R -, for both front
and rear speaker sets
Fuses: The fuses protect the car should a catastrophic problem occur in
the amp. Always replace fuses with the same size fuse
13
The Studio-XM
Class D Bass Amplifiers
The Studio-XM amps are Class D bass amps designed for maximum efficiency
to put big power in a small, light weight chassis to fit today's smaller vehicles
as well as larger vehicles where you don't want stereo equipment to use up
all that room for skis, boards,and all the other stuff that makes life fun. The
Studio-XM amps range from 500 watts to 2,000 watts. They are all 1-ohm
stable, but two are designed for maximum efficiency at 2-ohms so you can
find the right amp for the right speaker every time.
ST-500XM Ii
Single channel
Compact Chassis
Class D
500 Watts RMS @ 1Q
ST-500XM Il Features
* Variable Electronic Crossover + Variable Subsonic Filter
* Dash Remote Level Control * Variable Cain Control
e Strappable (To run 2 amps on a single voice coil)
The ST-500XM II Controls and Connections
The ST-500XM II Control End
1 2 3
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INPUT BRIDGE
: .....
MIN MAX 40Hz 180Hz17Hz 50Hz 30Hz 80Hz 0dB 12dB 0° 180°
REMOTE GAIN LPF SUB BASS BASS PHASE
SS SONIC FREQ BOOST
PROTECT
© -
POWER
. Remote each ST-X bass amp includes a wired dash remote for the bass
output
. RCA inputs accept the input signal from the head unit
. Bridge in and Bridge out are used to “strap” to ST-X mono amps so they
can work together to drive a single speaker (see following section on
strapping mono amps)
. Gain control is used to balance the output of the head unit to the input
of the amplifier
. LPF Being a bass amp, the STx has full time low pass bass crossover that
can vary from 40Hz to 180Hz
. Subsonic To protect your woofers from sub sonic frequencies and to
conserve amplifier power, a variable subsonic filter can be set from
50Hz own to Off
ST-500XM II Power End
1 2 3 4
@ ` >, и Y v Y
O : + ST-500XMI| Re
GND REM +12V
SEE] BE
POWER SPEAKER
FUSE 40A
. GND The amp should have a firm connection the car frame.
* See section Install Sense
. REM The remote terminal connects to the head unit remote out, or to
some other switched 12 volt source to turn on the amplifier.
. +12V The main 12 volt must be connected directly to the vehicle's
battery using wire of the proper gauge. * See section Install Sense
. Speaker connections The terminal block provides positive speaker
connections. Simple insert the wire and cinch down the set screw.
. Fuse The ST-500XM II has an internal fuse. If needed replace only with the
same value fuse. An additional fuse should be installed in the main power
lead near the battery
15
ST-850XM
Single channel
Compact Chassis
Class D
600 Watts @ 2 0
850 Watts RMS @ 19
ST -850XM Features
Variable Electronic Crossover - Variable Subsonic Filter
Dash Remote Level Control - Variable Bass Boost/Frequency Control
Strappable * Variable Phase Control
The ST-850XM Controls and Connections
ST-8500XM Control End
1 2 3 4 | | 7 8 9 10
О v v ° Ÿ ST-85DXM | v v + у ©
INPUT BRIDGE
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©. MIN MAX 40Hz 180Hz-17Hz ° зонг вон: 0481248 0” 180°
кет a an Bl MES NS, rss
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. Power/Protect LEDs: show the operating condition of the Amplifier
. Remote: each ST-X bass amp includes a wired dash remote for the bass
output
. RCA inputs: accept the input signal from the head unit
. Bridge in and Bridge out: are used to “strap” to ST-X mono amps so they
can work together to drive a single speaker (see strapping Ppxx
. Gain control: is used to balance the output of the head unit to the input
of the amplifier
. Low Pass: Being a bass amp, the ST-X has a full time low pass bass
crossover that can vary from 40Hz to 180Hz
. Subsonic: To protect your woofers from sub sonic frequencies and to
conserve amplifier power, a variable subsonic filter can be set from
50Hz own to Off
16
8. Bass Boost frequency: control sets the center point of the boost
9. Bass Boost level : control sets the amount of boost
10.Phase control: to adjust the subwoofer from 0 ~180°
ST-850XM Power End
1 | 3 | 4
O € + ) ST-850xN С ) € > O
GND REM +12V FUSES SPEAKER OUTPUT
A |: [OE
m | || ш
51 15 o ©
LL LL O
O
O O
1. GND: The amp should have a firm connection the car frame.
* See section Install Sense
2. REM: The remote terminal connects to the head unit remote out, or to
some other switched 12 volt source to turn on the amplifier.
3.+12V: The main 12 volt must be connected directly to the vehicle's
battery using wire of the proper gauge. * See section Install Sense
4. Speaker connections: The heavy duty terminal block provides positive
speaker connections. Insert the wire and cinch down the set screw.
5. Fusing: Note the value of the ST- 850XM has internal fuses. If needed
replace with the same value fuses. An additional fuse should be installed
in the main power lead near the battery
17
ST-1000XM Ii
Single channel
Compact Chassis
Class D
1,000 Watts RMS @ 1Q
ST-1000XM IlIFeatures
« Variable Electronic Crossover * Variable Subsonic Filter
« Dash Remote Level Control * Variable Bass Boost/Frequency control
« Strappable (To run 2 amps on a single voice coil)
The ST-1000XM II Controls and Connections
ST-1000XM II Control End
1 2 3 4 | | 7 8 9 10
© v v ° y ST 1офохм Ц v v Y v >
INPUT BRIDGE
PE 000000
MIN MAX 40H2 180Hz 17H 50Hz 30Hz 80Hz 0dB 12dB 0° 180°
REMOTE GAIN LPF SUB BASS BASS PHASE
a SONIC FREQ BOOST
e
1. Power/Protect LEDs: show the operating condition of the Amplifier
2. Remote: each ST-X bass amp includes a wired dash remote for the bass
output
3. RCA inputs: accept the input signal from the head unit
4. Bridge in and Bridge out: are used to “strap” to STI-X mono amps so they
can work together to drive a single speaker (see strapping Pp xx)
5. Gain control: is used to balance the output of the head unit to the input
of the amplifier
6. Low Pass: Being a bass amp, the ST-X has a full time low pass bass
crossover that can vary from 40Hz to 180Hz
18
7. Subsonic: To protect your woofers from sub sonic frequencies and to
conserve amplifier power, a variable subsonic filter can be set from
50Hz down to Off
8. Bass Boost frequency: control sets the center point of the boost
9. Bass Boost level: control sets the amount of boost
ST-1000XM II Power End
1 2 3 4 5
O € + ST-1000XN II ) € > O
GND REM +12V FUSES SPEAKER OUTPUT
LO LO LO
cn cn cn
Ш Ш Ш
0) mn 2 р с)
2 2 LL © O o
1. GND: The amp should have a firm connection the car frame.
* See section Install Sense
2. REM: The remote terminal connects to the head unit remote out, or to
some other switched 12 volt source to turn on the amplifier.
3.+12V: The main 12 volt must be connected directly to the vehicle's
battery using wire of the proper gauge. * See section Install Sense
4. Speaker connections: The heavy duty terminal block provides positive
speaker connections. Insert the wire and cinch down the set screw.
5. Fusing: Note the value of the ST- T000XM II has internal fuses. If needed
replace with the same value fuses. An additional fuse should be installed
in the main power lead near the battery
19
ST-1350XM Ii
Single channel
Compact Chassis
Class D
1,000 Watts RMS @ 20
1,350 Watts RMS @ 1 9
ST-1350XM lIFeatures
Variable Electronic Crossover + Variable Subsonic Filter
Dash Remote Level Control - Variable Bass Boost/Frequency control
Strappable . Variable Phase control
The ST-1350XM II Connections and Controls
ST-1350XM II Control End
1 2 3 4 | | 7 8 9 10
о v v ° A 13§0XM | v v v ©
e
Pees e...
MIN MAX 40Hz 180Hz (тн: soHz 30Hz 80Hz 0dB 12dB 0° 180°
GAIN LPF SUB BASS BASS PHASE
REMOTE a SONIC FREQ BOOST
O O
©.
. Power/Protect LEDs: show the operating condition of the Amplifier
. Remote: each ST-X bass amp includes a wired dash remote for the bass
output
. RCA inputs: accept the input signal from the head unit
. Bridge in and Bridge out: are used to “strap” to ST-X mono amps so they
can work together to drive a single speaker (see strapping Pp xx)
. Gain control: is used to balance the output of the head unit to the input
of the amplifier
. Low Pass: Being a bass amp, the ST-X has a full time low pass bass
crossover that can vary from 40Hz to 180Hz
. Subsonic: To protect your woofers from sub sonic frequencies and to
conserve amplifier power, a variable subsonic filter can be set from
50Hz down to Off
20
8. Bass Boost frequency: control sets the center point of the boost
9. Bass Boost level: control sets the amount of boost
10. Phase control: to adjust the subwoofer from 0 ~180°
The ST-1350XM II Power End
1 2 3 4 5
O « y ST-1350XN I ) O
GND REM +12V FUSES SPEAKER OUTPUT
o o © ©
< < < <
Ш Ш Ш Ш
N un N 0
>| [21 12] |Z] © Se
. GND: The amp should have a firm connection the car frame. * See
section Install Sense
. REM: The remote terminal connects to the head unit remote out, or to
some other switched 12 volt source to turn on the amplifier.
. +12V: The main 12 volt must be connected directly to the vehicle's
battery using wire of the proper gauge. * See section Install Sense
. Speaker connections: The heavy duty terminal block provides positive
speaker connections. Just insert the wire and cinch down the set screw.
. Fusing: Note the value of the ST- 1350XM has internal fuses. If needed
replace with the same value fuses. An additional fuse should be installed
in the main power lead near the battery
21
—
> w
ST-1650XM Il
Single channel
Compact Chassis
Class D
1,500 Watts RMS @ 19
ST-1650XM Il Features
* Variable Electronic Crossover e Variable Subsonic Filter
* Dash Remote Level Control e Variable Bass Boost/Frequency control
« Strappable e Variable Phase control
The ST-1650XM II Connections and Controls
ST-1650XM II Control End
1 2 3 4 | | 7 8 9 10
- У v A ee У v v >
INPUT BRIDGE
oe MIN MAX 40Hz 180Hz 17HZ soHz 30Hz soHz 0dB 12dB 0° 180°
REMOTE GAIN LPF SUB BASS BASS PHASE
SONIC FREQ BOOST
. Power/Protect LEDs: show the operating condition of the Amplifier
Remote: each ST-X bass amp includes a wired dash remote for the bass
output
. RCA inputs: accept the input signal from the head unit
. Bridge in and Bridge out: are used to “strap” to ST-X mono amps so they
can work together to drive a single speaker (see strapping Pp xx)
. Gain control: is used to balance the output of the head unit to the input
of the amplifier
. Low Pass: Being a bass amp, the ST-X has a full time low pass bass
crossover that can vary from 40Hz to 180Hz
22
8.
9
Subsonic: To protect your woofers from sub sonic frequencies and to
conserve amplifier power, a variable subsonic filter can be set from
50Hz down to Off
Bass Boost frequency: control sets the center point of the boost
Bass Boost level: control sets the amount of boost
10. Phase control: to adjust the subwoofer from 0 ~180°
The ST-1650XM II Power End
1 | 3 | 5
O € y ST-1650XN II ; > O
GND | +12V SPEAKER OUTPUT
e e © ©
O
O
O O
. GND: The amp should have a firm connection the car frame. * See
section Install Sense
REM: The remote terminal connects to the head unit remote out, or to
some other switched 12 volt source to turn on the amplifier.
+12V: The main 12 volt must be connected directly to the vehicle's
battery using wire of the proper gauge. * See section Install Sense
Speaker connections: The heavy duty terminal block provides positive
speaker connections. Just insert the wire and cinch down the set screw.
Fusing: Note that the ST- 1650XM Il has no internal fuses. An external fuse
of xxx Amps must be installed in the main power wire near the amp. An
additional fuse should be installed in the main power lead near the battery.
23
—
* Variable Electronic Crossover .
ST-2000XM ll
Single channel
Compact Chassis
Class D
2,000 Watts RMS @ 19
ST2000XM IFeatures
Variable Subsonic Filter
Dash Remote Level Control * Variable B ass Boost/Frequency control
Strappable < Variable Phase control
The ST-2000XM Il Connections and Controls
ST-2000XM II Control End
1 2 3 4 5 6 7 8 9 10
O ) € ) ) € ) O
У У У ST- 20Q0XM | У У У У
INPUT BRIDGE
e
- 0000600
oe MIN MAX 40Hz 180Hz 17H вон: зон вон: 0dB 12dB 0° 180”
REMOTE a GAIN LPF SUB BASS BASS PHASE
SONIC FREQ BOOST
I [I [I [I [I I
. Power/Protect LEDs: show the operating condition of the Amplifier
Remote: each ST-X bass amp includes a wired dash remote for the bass
output
RCA inputs: accept the input signal from the head unit
Bridge in and Bridge out: are used to “strap” to ST-X mono amps so they
can work together to drive a single speaker (see strapping Pp xx)
Gain control: is used to balance the output of the head unit to the input
of the amplifier
Low Pass: Being a bass amp, the ST-X has a full time low pass bass
crossover that can vary from 40Hz to 180Hz
. Subsonic: To protect your woofers from sub sonic frequencies and to
conserve amplifier power, a variable subsonic filter can be set from
50Hz down to Off
24
8. Bass Boost frequency: control sets the center point of the boost
9. Bass Boost level: control sets the amount of boost
10. Phase: control to adjust the subwoofer from 0 ~180°
The ST-2000XM II Power End
1 | 3 | 5
O € + ST-2000XNI ) € > O
GND REM +12V SPEAKER OUTPUT
© © ® O
O
e
O e
1. GND: The amp should have a firm connection the car frame. * See
section Install Sense
2. REM: The remote terminal connects to the head unit remote out, or to
some other switched 12 volt source to turn on the amplifier.
3. +12V: The main 12 volt must be connected directly to the vehicle's
battery using wire of the proper gauge. * See section Install Sense
4. Speaker connections: The heavy duty terminal block provides positive
speaker connections. Just insert the wire and cinch down the set screw.
5. Fusing: Note that the ST- 2000XM Il has no internal fuses. An external fuse
of xxx Amps must be installed in the main power wire near the amp. An
additional fuse should be installed in the main power lead near the battery.
25
Strapping Studio X Mono Amps
Studio X mono amps are true mono units and you can double their power
by “strapping” to units of the same model together to drive a single voice coil;
Always keep in mind that each amp must see a minimum load of 10; A
“strapped” pair of amps must see a minimum load of 20 (1V per amp)
[e |
Bass Remote
Strapping the Inputs
o ST-1500XM O
BASS BOOST BASS
GAIN LPF SUBSONIC FREQ BOOST
N MAX 40Hz 180Hz OFF SDHz 30Hz B0Hz 0dB 1248
PROTECTION
® (CF)
POWER a) M
e O
B
+ Out
INPUT BRIDGE OUT O
INPUT BRIDGE IN
O
(O 9T-1500XM O)
= BASS BOOST BASS
INPUT BRIDEE GAIN LPF SUBSONIC FREQ BOOST
N MAX 40Hz 180Hz OFF S0Hz 30Hz SOHz 0dB 1248
M
INPUT BRIDGE OUT
C
O
Decide which amp will be the master” amp and which will be the “slave”
amp
2. Connect the head units bass output or full range output RCA cables to the
R and L RCA inputs of the frst (Master) amplifer
3. Connect the “Bridge Out” of the master amp to the “Bridge In” of the
salved amp with a single RCA Cable; Do not connect anything to the regu-
lar Rand L inputs of the slave amp;
4. Connect the Bass Remote to the Remote in of the master amp;
**The master amp is now the control amp; All adjustments you make to the
bass remote and to the master amp's other controls will be transferred to the
slave amp and the Slave amp will be driving the negatve side of the signal,
and have no control functons of its own
26
Strapping the Outputs of the Studio X Mono Amps
Master amp
[О € > € >ST-1650XM IC > € › ©
GND REM +12V SPEAKER OUTPUT
T
Slave amp |
© € > с ST-1650XM II › О)
GND REM e SPEA D
| U 5 |
See E
© ©
O © O
As Shown Above
Connect the master amplifer's speaker output + terminal to the +
(positive) terminal of the woofer.
2. Connect the slave amplifer's speaker output + Terminal to the -
(negatve) terminal of the woofer
Connect the Connect the two amplifer's speaker output - (negative)
terminals together
Note: You are creating a much more powerful amplifier in this way and
doubling the output; Make sure your speaker wire can transfer the power; We
recommend a minimum of 12 gauge speaker lead, and for best performance
you should use 10 gauge or 8 gauge;
27
Speaker Connectons
ST-2X
Standard stereo hook -up connects + and - leads from the correct terminal to
each speaker, taking care that no wire or speaker terminal makes contact
with the metal vehicle body.
O ( ) € ; € ; O)
POWER ST-2X © нете BRIDGE --———- ®
GND REM +12V 1X25A - LEFT + - RIGHT +
9 ©
PROTECTION on
>
O О
O O
2 Ohms Min/Channel
A bridged 3 channel “mixed mono” mode can be used to run Mids/Highs in
stereo and a Sub in Mono from the same stereo outputs; To maintain proper
impedance you must use passive crossovers (see below) when in mixed mono
configuration; A simple Cap/Coil crossover will work for this set- up, placing a
coil in the woofer + lead and caps in the mid/highs + leads;
See your Zapco authorized dealer for more informaton on mixed mono set-ups
O с с) с С) O
POWER ST-2X — Gm. BRIDGE mm -@
+
©-
1X25A -LEF
BRIDGE
GND REM +12V T+ - RIGHT
oS 6 O E 198
POWER HD E
PROTECTION an
>
O a O
O O
YY
40) Min Load
ST-4X SQ
Like the ST-2X, the ST-4X will drive 4Q or 2Q loads and can be hooked in 3
channel mixed mono mode; Although the + and - terminals are located slightly
differently, the hook-ups are similar
2 Ohms Min/Channel
Front Stage
Standard 4 channel |
system hookup
O ——— staxsa $— RIDGE › ©
ET] if EE SN.
o E, 81085
O pues qUe O
Rear Fill
Three way system with front
stage, rear stage and subwoofer
in mixed mono confguraton
Front Stage
<) с) ST-4X SQ
Woofer 19 PL le]
4 Ohms O j Ëo
Rear Fill
2 Ohms Min/Channel
29
You can create a high power
stereo amp by using the ST-4X in
Dual Mono mode where the
front amp powers one channel
O
C
ST-4X SQ ®
+
LEFT -
) C
BRIDGE --———
+ RIGHT +
D
Front Stage
TT Tu и 2X25A = Г О
ne the rear amp powers the E e E i © el ele o
ot er, О 2 2 o 5) © REAR
O LEFT RIGHT O
You will use Y-adapters
to put the lef input into
both front channels and
the right input into both
rear channels
Below, an ST-4X drives front i on т“
and rear speaker, while the 4X —— ——
preout goes to the ST-500XM ||
inputs and the ST-500XM || мы мы
drives the subwoofer Highs Amp
O —— > st4xsq © A › ©
GND REMOTE B+ 2X25A Te RIGHTS
NM O
© & El a © © (+) =
o ВЕДЫ
O | LEFT - + RIGHT O
Bass Amp
(O) ST-1500XM O) Mid Mid
GND REM +12V „19 MIN
See elo
O О — 2 Ohms Min/Channel —
POWER SPEAKER
O O Rear Fill
+
13J00M
30
ST-5X
The ST-5X puts everything together in one do all amplifier
Standard 5 channel
system
Woofer
4 Ohms
oO ST-5X > | ) e)
POWER + cH1-— Mono —+ Ha. 7 e"
GND REM +12V O
- LN ls
EEE Eee
о В 58565
O O
2 Ohms Min/Channel
4 Ohms Min/Channel ,
High power
3 Channel System
Woofer
4 Ohms
(O ST-5X ) C > O
POWER + cH1 MONO —+ CHA. Toe
GND REM +12V O
N | (ls
E e El : ВОО
5 m
о В №665
O O
4 Ohms Min/Channel
31
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32
The pursuit of perfection never ends!
No sooner do we produce an new amplifier, then we're looking for a way
to make an even better one.
In the same way, you're going to find yourself listening to your system and
wondering how you can make it sound even better.
So, here's your next step: Equalization! Your car changes the sound of your
system. The shape of the car, the interior, even the number of passengers.
Here's another fact. No two cars are identical. What's this mean?
That means that to sound it's very best, every system must be matched to
the vehicle through Equalization.
To get the very best sound from the system in your car on your music,
you need an equalizer.
The Zapco ASP-Q1 is the quickest way to get exactly what you want from
your system in your car.
са се ее с ге ге р ге ге Г
® ® e e e e e e e e
shill dali da dad ill PONER
OUTPUT TT INPUT
Al E HPF LPF HPF
[USOS
The Zapco ASP-Q1 give you 5 bands of parametric equalization so you can
adjust exactly the frequencies needed to tune your system in your car. It
also gives you a choice of 2-way or 3-way crossovers, an Auxiliary input,
input gains for each channel of each input, a phase control to perfectly
match the woofer to the car, a dedicated subwoofer level control, anda
system volume control.
To make sure you get that custom tuned sound without added noise, we
wrapped the ASP-Q1 in a genuine copper chassis for maximum noise
rejection, and we gave it a remote mounted power supply in it's own copper
chassis.
The ASP-Q1 is a full system preamp for tuning your system to your car.
Audition a Zapco ASP-Q1 Equalizer at your Zapco dealer today
33

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Key Features

  • High-quality 1% metal film resistors
  • High current 5532 Op-Amps
  • High-end KEC outputs
  • Compact extruded aluminum chassis
  • Available in a variety of configurations, including 2-channel, 4-channel, and 5-channel models
  • All ST-X series amplifiers feature a number of high-end features
  • Perfect for anyone who is looking for a high-quality amplifier that will provide years of reliable service

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Frequently Answers and Questions

What are the power ratings of the ST-X series amplifiers?
The ST-X series Class A/B full range-amps have over 50 watts RMS/ch at 400 and about 100 watts RMS/ch at 20. The Studio-X Class D bass amps are 10 stable with power from 500W to as much as 2,000W.
What are the dimensions of the ST-X series amplifiers?
The dimensions of the ST-X series amplifiers vary depending on the model. However, all ST-X series amplifiers are designed to be compact and easy to install.
What is the warranty on the ST-X series amplifiers?
The ST-X series amplifiers come with a 3-year warranty.
What is the price of the ST-X series amplifiers?
The price of the ST-X series amplifiers varies depending on the model. However, all ST-X series amplifiers are priced competitively.
Where can I buy the ST-X series amplifiers?
The ST-X series amplifiers can be purchased from a variety of authorized dealers.
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