ZRS C1 CONTROLS
MASTER/SLAVE CONFIGURATION.
Whether you are daisy chaining or bridging two ZRS C1 amplifiers, our exclusive MASTER/SLAVE configuration insures the simplest installation possibilities. By following the guidelines set up. While other brands have you gain matching, crossover matching and phase matching their amps in
RCA Headunit signal to
Master Amp only! No RCA
Cables to be attached to BRIDGING AMPS Slave Amplifier.
Fully adjusted Signal
is transferred from Master to Slave Amp via Phone Cable.
The super
RCA Headunit signal to Master Amp only! No RCA Cables to be attached to Slave Amplifier.
Amp #1 in Master Mode
DAISY CHAIN
Amp #2 in Slave 1 Mode
Fully adjusted Signal
is transferred from Master to Slave Amp via Phone Cable.
RCA PREAMP
OUTPUT
The preamp output is a full range signal mixed f r o m b o t h i n p u t channels . Use this s i g n a l t o f e e d a
secondary | full range |
a m p l i f i e r | i n y o u r |
system. |
|
INPUT
GAIN CONTROL
The ZRS C1 amplifier features advanced input gain control from 0.2 volts to 9 volts so that the amp can operate efficiently and at full power from any head unit pre amp signal.
DASH MOUNT
BASS REMOTE
When using the Remote 
Subwoofer Control in a 
multi amp system the bass remote of the Master amp will control all amps 
in the system. Use only 
cable supplied with the 
remote for connection.
POWER & DIAGNOSTIC
LED INDICATORS
ZRS amplifiers feature s o p h i s t i c a t e d I C controlled protection circuitry. If the amp goes i n t o a d i a g n o s t i c condition from thermal over load or speaker short circuit the LED will light and amp will shut down.
ADJUSTABLE SUBSONIC | 24dB CROSSOVER SLOPE | CONNECTION |
WITH BASS FOCUS | BASS EQUALIZER | TERMINALS |
The ZRS C1 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. In a vented enclosure set the Bass Focus to the port tuning frequency and you can add 7dB of increased bass rumble.
The crossover of the ZRS C1 features a steep 24dB per octave slope Butterworth low pass crossover ensuring that only the lowest frequencies are reproduced by the amplifier.
The amplifier also includes a Bass Equalizer with a center frequency of 45Hz which can be adjusted for up to 12dB of additional gain at that frequency.
The ZRS C1 features heavy duty bolt down terminals, the power and ground terminals accept 0 - 2 gauge wire while the speaker terminals can accept 8 gauge wire.
Before you begin with your installation, disconnect the NEGATIVE
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
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
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.
