Cadence ZRS C4 Stereo Amplifier User Manual
Contents
1. Ohm Single Voice Coil To amp To amp 3 Channel Configuration TIA CEDIC CoC CF CD oe DD CD C C m BRIDGED O3cH Oce 12V REM GND 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 4 Ohm Single Voice Coil Channels 3 and 4 can be bridged to one 4 Ohm mono woofer Two 2 Ohm woofers can be used for To amp Stereo bass on Channels 3 and 4 To amp ZRS C4 Ni Na 4 Channel Configuration J ae Cc Cc im RIDGEED r BRIDGED a esee a o CH O3cHO O4cHO Channels 1 and 2 to Front Left Front Right Component Speakers Channels 3 and 4 to Rear Left Rear Right Co CD C LH he Fi C D Component Speakers 6 x 9 Speakers or 6 5 Speakers Minimum Impedance 2 ohms of per channel 4 Ohm 6x9 or 6 5 Speakers Channels 3 and 4 Rear 4 Ohm Tweeters in Parallel 4 Ohm Tweeters in Parallel Multi Speaker Configuration BRIDGED I Och O2cH Fes ae ens aa e 8 Ohm e 8 Ohm Midrange Midrange 8 Ohm Midrange 8 Ohm Midrange 4 Ohm Midrange Eight 8 Ohmspeakers installed in parallel or 3 Ohm 8 Ohm 8 Ohm 8 Ohm Midrange Midrange Four 4 Ohm speakers installed in parallel Do not mix impedances and do not2. 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 Maxi
3. In the drawing below we set the knob to approximately 30Hz Set the LPF Low Pass Filter to the frequency you wish to choose to block high frequency signals we chose 300Hz Now channels 1 and 2 will only play signals between 30Hz and 300Hz 3 4 CH _ X OVER LPF 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 using a 3 way amplifier system installation the ZRS C4 is the perfect midrange midbass power amplifier m m 4 Ohm 4 Ohm 4 Ohm 4 Ohm Midrange Midrange Midrange Midrange POWER amp DIAGNOSTIC LED INDICATORS ZRS amplifiers feature sophisticated IC controlled protection power Circuitry If the amp goes E p in to a diagnostic condition from thermal over load or speaker short circuit the LED will light and amp will shut down 10Hz 300H Hz HPF FULL BPF 30Hz 300HZ 10Hz 300HZ HPF FULL BPF 30Hz 300HZ INPUT GAIN CONTROL The ZRS C4 amplifies features advanced input gain control from 0 3 volts to 7 volts so that it can operate efficiently and at full power from any head unit pre amp signal RCA PREAMP INPUT High end Tiffany Style RCA connectors are used for the preamp inputs ensuring tight loss less signal connections for ensured high fidelity EEEN SN 12dB HIGH PASS CROSSOVER SLOPE Channels 1 and 2 electro
4. ZRS C4 QUICK INSTALLATION GUIDE MUSIC ALBUM ARTIST GD felt PTY AF TA TP co mp REMOTE TU RN ON i FROM HEAD UNIT C C D N BRIDGED o BRIDGED Oicth O O2cH O3cHO Oce D O DGG ee GD Ga ED Gan D ZRS E POWER CONNECTION REQUIREMENTS ITAN EE MINIMUM 4 GAUGE CABLES 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 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 4 GAUGE MINIMUM FOR 4 OHM BRIDGED OR 2 OHM STEREO Please read this installation guide carefully for proper use of your Cadence power amplifier HIGH POWER INSTALLS YOU MUST INSTALL AN ADDITIONAL Should d technical ist duri ft installati Il technical line between 9 30 am and 5 00 PM EST at 732 370 5400 Read this entire guide E eee 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 lev
5. els 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 i
6. mum 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
7. nic crossover features sophisticated 12dBHigh Pass filter circuitry The 12dB filter ensures a more gradual cutoff necessary for front speaker stages and tweeters where frequency overlap is critical for high quality sound reproduction 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 CONNECTION TERMINALS The ZRS C4 features heavy duty bolt down terminals the power and ground terminals accept 4 gauge wire while the speaker terminals can accept 10 gauge wire 24dB LOW PASS CROSSOVER SLOPE Channels 3 and 4 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 O thereby increasing the audio spectrums headroom OER E 12V REM GND 3 4 CH X OVER LPF 10Hz 3O0O0OHZ HPF PULL BPF 3OHZ 300HZ HCH HPF X OVER LPF HPF 10Hz 300Hz HPF FULL BPF 3OHZ 300HZ 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
8. nstalling multiple amplifiers mount them in close proximity so that they can all share the same ground point Attach the g _ black ground wire to the amplifier screw terminal marked Ground ZRS Type C4 4 Channel High Power Amplifier We recommend that you use the Cadence amplifier installation kits which contain all the 4 Ohm Power 4 x 150 Watts RMS eae o je A E eee ee 2 Ohm Power 4 x 225 Watts RMS ver the years we have received amplifiers back to our service department with melte i power ground terminals The cause of this is a bad ground connection When there is a lack 4 Ohm Bridged 2 x 450 Watts RMS of good ground heat builds up at the weakest point which happens to be the contact screw IHF 2002 Peak Power 2 x 900 Watts 1800 Watts Max of the amplifier terminal Over time the heat generated will begin to melt the terminal Itis a Damping Factor gt 500 100Hz 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 Preamp Input Voltage 300mV to Volt probably have a bad or loose connection If you are sure of your connections and the wires Low Pass Crossover 30Hz 300Hz still feel hot to the touch you should upgrade the gauge of wire to next heaviest gauge High Pass Crossover 10Hz 300Hz The remote turn on connection is located on the barrier strip next to the power and ground SI 12dB 24dB c
9. onnections This connection is responsible for turning the amplifier on and off with the rest sen See ee of the system A smaller gauge wire can be used to make this connection to your radio s Band Pass Control YES power antenna lead Should your system not have any turn on leads you can wire the Minimum THD lt 0 1 remote terminal to an accessory lead which turns on with your cars ignition 10Hz 40Khz 3dB The ZRS Series amplifiers feature RCA preamp inputs Run RCA cables from your sound proquency esponze E g source to the inputs of the amplifier We suggest the use of high quality shielded RCA patch Dimensions 9 6 x 2 32 x 22 243x59x554mm W H L 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 C RTIENTE ZRS C4 To amp 4 Ohm Bridged Mono 4 Ohm To amp Single Voice Coil Configuration DVC 2 Ohm Wired in Series to 4 Ohm JLL o CM BRIDGED BRIDGED D 1 cH O 2c cHe O3cH Oce 36 6 DVC 2 Ohm Wired in Series to 4 Ohm When bridging the ZRS C4 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 4
10. run amp below 2 ohm stereo load per channel 4 Ohm 4 Ohm Midrange Midrange 4 Ohm Midrange lt a fares ZRS C4 CONTROLS GAIN HPF POWER O ZV O 3V m i2 CH __ 10Hz 300HzZz C a C D C D X OVER LPF GAIN HPF 30HZz 300HZ ZV O 3V 1OHZ 300HzZz E E gt X OVER LPF HPF FULL BPF IW CENI HPF FULL BPF ea Cc O PROTECT 3OHZ 300HZ 4 Channel Band Pass Configuration The ZRS C4 features a unique band pass system where by channels 1 and 2 can be configured to a band pass system 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 BPF Band 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 30Hz Set the LPF Low Pass Filter to the frequency you wish to choose to block high frequency signals we chose 300Hz Now channels 1 and 2 will only play signals between 30Hz and 300Hz 1 2 CH HPF X OVER LPF Set Channels 3 and 4 Crossover Switch to BPF Band Pass Filter and adjust the HPF High Pass Filter knob to the frequency you wish to choose to block low frequency signals
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