Cadence ZRS C9 Car Amplifier User Manual

ZRS C9 QUICK INSTALLATION GUIDE
REMOTE TURN-ON
FROM HEAD UNIT
80 AMP FUSE
GROUND CONNECTION 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.
POWER CABLE REQUIREMENT:
4 GAUGE MINIMUM FOR 4-OHM BRIDGED OR 2-OHM STEREO
HIGH POWER INSTALLS. YOU MUST INSTALL AN ADDITIONAL
80 AMP IN-LINE FUSE IN THE MAIN POWER CABLE
CONNECTION.
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.
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+.
ZRS Type C9 - 4 Channel High Power Amplifier
4-Ohm Power:
2-Ohm Power:
4-Ohm Bridged:
IHF-2002 Peak Power:
Damping Factor:
Preamp Input Voltage:
Low Pass Crossover:
LP Crossover Slope:
Band Pass Control:
Subsonic HP Frequency:
Bass Focus Control:
Bass Equalizer:
Preamp Output:
Input Channels:
Minimum THD:
Frequency Response:
Dimensions:
4 x 100 Watts RMS
4 x 150 Watts RMS
2 x 300 Watts RMS
2 x 600 Watts = 1200 Watts Max
640 @ 100Hz
200mV to 9Volt
45Hz-4.5KHz utilizing Multiplier
12db Channels 1 and 2
12db or 24dB Channels 3 and 4 Selectable
Channels 3 and 4 Capable
10Hz-360Hz
Flat to +7dB
Flat to +12dB @ 45Hz
4 Channel Mixed Mono RCA
2 or 4 Channel Selectable
<0.1%
10Hz - 40Khz +/- 3dB
9.6” x 2.32” x 15.11” (243x59x384mm)
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 C9
To amp -
4-Ohm
Single Voice Coil
4-Ohm Bridged Mono
Configuration
To amp +
Or
DVC 2-Ohm
Wired in Series
to 4-Ohm
DVC 2-Ohm
Wired in Series
to 4-Ohm
When bridging the ZRS C9, minimum
impedance per channel is 4 ohm mono
bridged. When using DVC 2 ohm
woofers, voice coils must be wired in
series to 4 ohm.
Or
4-Ohm
Single Voice Coil
To amp +
To amp -
Midrange
Midrange
Tweeter
3-Channel
Configuration
Crossover
Tweeter
Crossover
DVC 2-Ohm
Wired in Series
to 4-Ohm
Channels 1 and 2 to Front Left + Front
Right component speakers with channels
3 and 4 bridged to 4 ohm mono load.
Or
Channels 3 and 4 can be bridged to one
4-Ohm mono woofer.
To amp +
Two 2-Ohm woofers can be used for
Stereo bass on Channels 3 and 4.
To amp -
4-Ohm
Single Voice Coil
Midrange
Tweeter
4-Channel
Configuration
ZRS C9
Midrange
Tweeter
Crossover
Crossover
Channels 1 and 2 to Front Left + Front Right
Component Speakers.
Channels 3 and 4 to Rear Left + Rear Right Component
Speakers, 6” x 9” Speakers or 6.5” Speakers. Minimum
Impedance 2 ohms per channel.
4-Ohm
6x9 or 6.5” Speakers
Channels 3 and 4 Rear
4-Ohm Tweeters in Parallel
Tweeter
4-Ohm Tweeters in Parallel
Tweeter
Multi-Speaker
Configuration
Crossover
Tweeter
2-Ohm
Stereo
Load
Tweeter
Crossover
2-Ohm
Stereo
Load
8-Ohm
Midrange
8-Ohm
Midrange
8-Ohm
Midrange
8-Ohm
Midrange
Eight 8-Ohmspeakers installed in parallel or
Four 4-Ohm speakers installed in parallel.
Do not mix impedances and do not run amp
below 2 ohm stereo load per channel.
8-Ohm
Midrange
8-Ohm
Midrange
4-Ohm
Midrange
8-Ohm
Midrange
4-Ohm
Midrange
4-Ohm
Midrange
8-Ohm
Midrange
4-Ohm
Midrange
ZRS C9 CONTROLS
2-Channel Bridged Mono Configuration - with CLONE FUNCTION.
The ZRS C9 features a unique CLONE FUNCTION to assist in setting up a 2-channel bridged system with perfect gain and crossover
tracking between the speakers. Typically when setting up a system you would need to set channels 1- 2 and then channels 3 - 4 crossovers
and gains separately, not guaranteeing perfect balance or frequency cutoffs. By using the CLONE FUNCTION you can control channels 1 - 2
from the processed signals of channels 3 - 4 thereby guaranteeing that all 4 channels are getting identical voltages and have their crossover
settings at identical frequencies. Here is how you do it.
If your head unit has only one
pair of RCA outputs, plug
these in to channels 1 - 2 and
set the mode switch to 2CH.
RCA PREAMP
OUTPUT
If your head unit has two
pairs of RCA outputs,
plug these in to all 4 of
the amplifiers RCA
inputs and set the mode
switch to 4CH.
INPUT
GAIN CONTROL
The preamp output is a
full range signal mixed
from all 4 input channels.
Use this signal to feed a
secondary mono block
amp in your system.
ADJUSTABLE SUBSONIC
WITH BASS FOCUS
The ZRS C9 features our
exclusive BASS FOCUS circuitry
which works as a variable Q
control at the Subsonic Filter
setting. By supplying up to 7dB of
boost you can compensate for
drivers in too small enclosures so
a 10” woofer can sound like a 12”
woofer and a 12” woofer can
sound like a 15” woofer. Small
dash and door speakers will also
benefit and will actually increase
their power handling capabilities.
Set the Crossover mode switch to
CLONE 3/4 CH. This will send the
processed signal of channels 3 and 4
to channels 1 and 2.
Now all controls for channel 1 - 2 will
be non functional. All crossover
settings, gains, subsonic, bass focus,
bass boost, frequency multipliers, and
crossover slopes will be controlled
from channels 3 - 4.
DASH MOUNT
BASS REMOTE
POWER & DIAGNOSTIC
LED INDICATORS
The remote bass control
functions on channels 3
and 4 only. When using
the CLONE function, the
bass remote will function
on both bridged channels.
Use only cable supplied
with the remote for
connection.
All ZRS Type C amplifiers
feature advanced input
gain control from 0.2 volts
to 9 volts so they can
operate efficiently and at
full power from any head
unit pre amp signal.
24dB CROSSOVER
SLOPE
Channels 3 and 4 can be set
to play Low Pass, Band
Pass, High Pass or Full
Range my means of the
control switch. When mono
bridging the amplifier you
can achieve a 24dB per
octave slope by setting the
switch to the MONO/24dB
position. For HPF/Full
Range 12dB is the
selectable slope.
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.
CROSSOVER
FREQUENCY MULTIPLIER
The ZRS C9 features in both
channels 1-2 and 3-4 fully
adjustable crossovers. In order to
make the crossover frequencies
more accurate, we split the
ranges from 45Hz to 450Hz and
then added a 10 times (X)
Frequency Multiplier switch that
changes the frequency range to
450Hz-4.5KHz. This is especially
useful when setting up 3 channel
systems requiring a wide range of
frequency settings.
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 200mV to 9Volts.
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.