Cadence | ZRS C8 | Installation guide | Cadence ZRS C8 Installation guide

ZRS C8 QUICK INSTALLATION GUIDE
REMOTE TURN-ON
FROM HEAD UNIT
100 AMP FUSE
POWER CONNECTION REQUIREMENTS:
MINIMUM 4 GAUGE CABLES.
GROUND5CONNECTION CABLE SHOULD USE SAME GAUGE
WIRE AS POWER CABLE. KEEP GROUND CABLE AS
SHORT AS POSSIBLE. ALL AMPLIFIERS IN A MULTI-AMP
INSTALLATION SHOULD GROUND TO THE SAME
LOCATION TO AVOID GROUND LOOPS.
We have spared no expense in designing these amplifiers, creating the most rugged,
reliable, powerful and best performing amplifiers. In fact we are so sure of the quality we
backup every ZRS Series amplifier with our exclusive two-year warranty which exemplifies
our commitment to excellence in car audio musical reproduction. (See enclosed warranty
card for details.)
Please read this installation guide carefully for proper use of your Cadence power amplifier.
Should you need technical assistance during or after your installation please call our
technical-line between 9:30 am and 5:00 PM EST at 732/370-5400. Read this entire guide
fully before attempting your installation.
4 GAUGE MINIMUM FOR 4-OHM BRIDGED OR 2-OHM STEREO
HIGH POWER INSTALLS. YOU MUST INSTALL AN ADDITIONAL
100 AMP IN-LINE FUSE IN THE MAIN POWER CABLE
CONNECTION.
WARNING: BE AWARE! Use of this amplifier at extreme high volumes for extended
periods of time may cause hearing loss and or hearing damage. During periods of
prolonged high volume levels it is recommended that you use ear safety devices. Playing
Cadence amplifiers at high volume levels while driving will impair your ability to hear
necessary traffic sounds. While driving always keep your sound volume at reasonable
levels. We at Cadence want you listening for many years to come.
When installing the amplifier, secure it tightly. An unmounted amplifier in your car can cause
serious injury to passengers and damage to your vehicle if it is set in motion by an abrupt
driving maneuver or short stop.
We suggest you construct a Red wiring harness with 2 additional fuse. One fuse should be
located near the car battery. This fuse near the battery offers protection against damage
from short circuits to the car chassis between the battery and the amplifier. A second fuse
closer to the amplifier offers additional safety to the amplifier itself. This fused red power
wire should be attached to the amplifier power terminal marked 12V+.
The wire harness should be made of primary cable of at least 4 gauge. The harness should
terminate in a large ring terminal for connection directly to the positive terminal of the car
battery. Use a spade plug to attach the wire, which connects to the amplifier location
marked 12V+.
A second black color wire of equal gauge should be used as a ground connection to a
welded chassis member. When connecting the ground wire make sure that there is no paint
or other insulator blocking a good ground connection. When installing multiple amplifiers,
mount them in close proximity so that they can all share the same ground point. Attach the
black ground wire to the amplifier screw terminal marked Ground.
We recommend that you use the Cadence amplifier installation kits, which contain all the
cabling and accessories necessary for a good, reliable installation.
Over the years we have received amplifiers back to our service department with melted
power/ground terminals. The cause of this is a bad ground connection. When there is a lack
of good ground, heat builds up at the weakest point which happens to be the contact screw
of the amplifier terminal. Over time the heat generated will begin to melt the terminal. It is a
good practice to feel the power and ground wires with your hands, near their amplifier
connection after having played the amp for a while. If the wires feel hot to the touch you
probably have a bad or loose connection. If you are sure of your connections and the wires
still feel hot to the touch, you should upgrade the gauge of wire to next heaviest gauge.
The remote turn on connection is located on the barrier strip next to the power and ground
connections. This connection is responsible for turning the amplifier on and off with the rest
of the system. A smaller gauge wire can be used to make this connection to your radio's
power antenna lead. Should your system not have any turn on leads, you can wire the
remote terminal to an accessory lead, which turns on, with your cars ignition.
The ZRS Series amplifiers feature RCA preamp inputs. Run RCA cables from your sound
source to the inputs of the amplifier. We suggest the use of high quality shielded RCA patch
cords to help reduce and eliminate unwanted electrical noise to your system.
To avoid electrical noise from being injected in to your sound systems be sure to run the
RCA cables on the opposite side of the vehicle that you used to carry the power and ground
leads of the amplifier.
ZRS Type C8 - 5 Channel High Power Amplifier
4-Ohm Power:
2-Ohm Power:
Ch 5 4-Ohm Mono:
Ch 5 2-Ohm Mono:
IHF-2002 Peak Power:
Damping Factor:
Preamp Input Voltage:
Low Pass Crossover:
High Pass Crossover:
Crossover Slope:
Band Pass Control:
Minimum THD:
Frequency Response:
Dimensions:
4 x 150 Watts RMS
4 x 200 Watts RMS
1 x 400 Watts RMS
1 x 600 Watts RMS
2800W System Peak
>500 @ 100Hz
200mV to 6 Volt
30Hz-150Hz
10Hz-150Hz
12dB + 24dB
YES
<0.1%
10Hz - 40Khz +/- 3dB
9.6” x 2.32” x 16” (243x59x406mm) W/H/L
ZRS C8
Midrange
5 Channel
Configuration with 2 ohm Subwoofer
Cros
Set the subwoofer channel 5 crossover setting to 80Hz
Low Pass and adjust the Bass Boost Equalizer to about
50%. Do not set the Low Pass crossover frequency too low.
Do not increase the Bass Boost equalizer beyond your
woofers capabilities. Plug in the remote bass control into the
jack marked REMOTE. Use only the cable which was supplied
with the amplifier.
In a full range system with passive crossovers you can set the
electronic crossovers of the ZRS C8 in the FULL RANGE
position so they receive the full frequency spectrum. You can
also choose to Bass Block the components by setting the
Crossover switches to HPF (High Pass Filter) at very low
frequencies no higher than 40-50Hz so that you protect the
smaller drivers in your system without eliminating too much of
the bass.
2-Ohm or 4-Ohm
6x9 or 6.5” Speakers
on Channels 3 and 4 Rear
5 CHANNEL INPUT MODE
If your head unit has 3 pairs of RCA jack out puts, Front
+ Rear + Subwoofer input these in to all 6 amplifier
input jacks and set the INPUT MODE switch to the 5CH
position. If your head unit has just one pair of Subwoofer RCA outputs, use a “Y” adaptor for Channel 5
input.
FOUR CHANNEL FADING IS RETAINED
IN THIS CONFIGURATION.
4 CHANNEL INPUT MODE
If your head unit has 2 pairs of RCA jack out puts, Front
+ Rear input these in to Ch1, 2, 3 & 4 amplifier input
jacks and set the INPUT MODE switch to the 4CH
position .The subwoofer channel will automatically get
its signal from a mix of all four channels input signal
without the need for a separate input.
FOUR CHANNEL
FADING IS RETAINED
IN THIS CONFIGURATION.
nge
Midrange
Tweeter
DVC 4-Ohm
Wired in Parallel
to 2-Ohm
Tweeter
Crossover
Crossover
To amp +
To amp -
Or
To amp +
To amp -
2-Ohm
Single Voice Coil
Crossover
Or
Crossover
Tweeter
Tweeter
Midrange
Midrange
= 2-ohm
4-Ohm
Single Voice Coil
DVC 2-Ohm
Wired in Series
to 4-Ohm
DVC 2-Ohm
Wired in Series
to 4-Ohm
DUAL WOOFER INSTALLATION CHANNEL 5
Channel 5 can also be used
with a single 4 ohm woofer
impedance load.
= 2-ohm
SVC 4-Ohm
with two woofers
in parallel = 2-ohm
SVC 4-Ohm
with two woofers
in parallel = 2-ohm
2 CHANNEL INPUT MODE
If your head unit has 1 pairs of RCA jack out puts input
them in to Ch1 and CH2 amplifier input jacks and set
the INPUT MODE switch to the 2CH position. All
amplifier channels including the subwoofer channel will
hence be driven by these two inputs without the use of
any “Y” adaptors.
FOUR CHANNEL
FADING IS NOT AVAILABLE
IN THIS CONFIGURATION.
ZRS C8 CONTROLS
Band Pass Configuration.
The ZRS C8 features a unique band pass system where by channels 1 and 2 can be configured high pass or full range while separately
setting channels 3 and 4 to their own band pass frequencies. This band pass system is especially useful when installing multiple midrange
and tweeter speakers. Please see below for detailed instructions.
Set Channels 1 and 2 Crossover Switch to HPF (High
Pass Filter) and adjust the HPF (High Pass Filter) knob to
the frequency you wish to choose to block low frequency
signals. In the drawing below we set the knob to
approximately 40Hz. Now channels 1 and 2 will only play
signals above 40Hz. You can also choose to set
Channels 1 and 2 to Full Range by changing the switch
position to FULL.
Set Channels 3 and 4 Crossover Switch to BP (Band Pass)
and adjust the HPF (High Pass Filter) knob to the frequency
you wish to choose to block low frequency signals. In the
drawing below we set the knob to approximately 80Hz. Set
the LPF (Low Pass Filter) to the frequency you wish to choose
to block high frequency signals, we chose 150Hz. Now
channels 3 and 4 will only play signals between 80Hz and
150Hz.
The Band Pass Setting is especially useful when setting
up component speakers where you want to activly block
low frequencies from reaching your midrange speakers
and tweeters and for multiple midrange speaker
installations. When installing a 3-way speaker system
the ZRS C8 is the perfect midrange/midbass power
amplifier.
4-Ohm
Midrange
DASH MOUNT
BASS REMOTE
INPUT
GAIN CONTROL
Channel 5 is the mono
subwoofer channel and
comes equipped with a
dashboard volume
remote control which can
be installed near the dash
for your convenience in
controlling the subwoofer.
RCA PREAMP
INPUT MODE SELECTOR
If you have 1 pair of
RCA jacks, input them
in to 1CH and 2CH
then set the switch to
2CH. If you have 2
pairs of RCA jacks,
input them in to CH,
1,2,3 and 4 then set
switch to 4CH. If you
have
a subwoofer
RCA from your
headunit, it should go
to 5CH.
The ZRS C8 amplifies
features advanced input
gain control from 0.2 volts
to 6 volts so that it can
operate efficiently and at
full power from any head
unit pre amp signal.
HEAVY DUTY
HEATSINK
Super heavy-duty heatsink
guarantees that your amplifier
will stay cool no matter how
hard you pound it.
Computerized thermal
protection circuitry guarantees
the amplifiers stability.
4-Ohm
Midrange
4-Ohm
Midrange
4-Ohm
Midrange
POWER & DIAGNOSTIC
LED INDICATORS
ZRS amplifiers feature
sophisticated IC
controlled protection
circuitry. If the amp goes
in to a diagnostic
condition from thermal
over load or speaker short
circuit the LED will light
and amp will shut down.
24dB LOW PASS
CROSSOVER SLOPE
CONNECTION
TERMINALS
Channel 5 electronic crossover features sophisticated
Linkwitz-Riley 24dB Low Pass filter circuitry. The 24dB
filter ensures a steep cutoff of high frequencies and
assists the amplification circuitry emphasize its power
output in the set frequency range thereby increasing the
audio spectrums headroom. Channel 5 is a mono 2 ohm
stable channel.
The ZRS C8 features heavy duty bolt down terminals,
the power and ground terminals accept 4 gauge wire
while the speaker terminals can accept 10 gauge wire.
Before you begin with your installation, disconnect the NEGATIVE (-) terminal from your car's battery. This safety precaution will avoid possible short circuits while wiring your amplifier.
Cadence amplifiers operate on 12-volt negative ground systems only.
It is recommend that you layout your sound system design on paper first. This will help you during the installation so that you will have a wiring flow chart and not miss-wire any of your
components.
Mount the amplifier in the trunk or hatch area of your vehicle. Never install an amplifier in the engine compartment or on the firewall. Please be sure to leave breathing room around the
amplifier heat sink so that it can dissipate the heat it produces efficiently. The amplifier can be installed either horizontally or vertically.
When mounting the amplifier on the trunk floor, be sure to watch for your gas tank, gas lines and electrical lines. Do not drill or mount any screws where they might penetrate the gas tank of
your car.
Once the system is operational, the first thing to do, is set all crossover points to approximate settings. In the case of the basic sub woofer system Low Pass filter crossover at 100 Hz or so.
Set the Bass Boost equalizer controls to 0 dB ( Flat Switch Position.)
Now you should set the amplifiers Input Sensitivity adjustment. The knob accessible on the side of the amplifier marked INPUT GAIN adjusts the input sensitivity from 300mV to 7Volts.
To adjust the input sensitivity, turn the control using a small flat head screwdriver fully counter clock wise to the minimum position. Do not apply any pressure while turning as this might
break the control unit. Adjust your radio volume level to maximum volume. Now turn the level control on the amplifier clockwise towards the Maximum marking until audible distortion
occurs. When you begin to hear any distortion in the sound, back down one notch and your amp is set. It is helpful to have a second person to help you set the gain.
When setting up a multi-amp system, set each amplifier’s gain separately. Start off with the bass amplifier, then adjust the highs amplifier’s level control to match.
Once you are satisfied with the level control settings, use any equalizer controls to adjust the system tonal level for personal preference. Keep in mind that after equalizing, you may have to
go back and reset the amplifiers level controls.
The level control of any car amplifier should not be mistaken for a volume control. It is a sophisticated device designed to match the output level of your source unit to the
input level of the amplifier. Do not adjust the amplifier gain to maximum unless your input level requires it.
If your unit has been professionally installed please do not change the gain settings set by the installer, he is the professional!
Your system can also be extremely sensitive to noise when the LEVEL is set to maximum and does not match your input signal. The gain adjustments need to be made only once when first
setting up the system.
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