SMART AMP SERIES // OWNERS MANUAL
FEATURES INTRODUCTION Thank you for purchasing this Cadence ZRS Smart Amp Series amplifier. Over the years, the technology used to create audio amplifiers has grown by leaps and bounds. We have tens of thousands of satisfied customers still using our first generation Ultra Drive amplifiers which are more than 19 years old. Our competition is satisfied with just continuing to build the same units year after year without thought for improvement, but not Cadence.
FEATURES FEATURES GOLD PLATED TERMINALS: All the terminals on the amplifier are solid brass and gold plated for high conductivity and minimum impedance loss. The power and ground terminals are extra large and capable of accepting 4-8 gauge wire. The speaker terminals can accept 14-16 gauge wire. When wiring the amplifier, be sure to strip just enough wire that fits into the terminal so that bare wires do not touch each other, or the amplifier chassis and cause a short circuit.
INSTALLATION BATTERY VOLTAGE: Cadence ZRS Smart Series amplifiers are rated and regulated to 13.8 volts and below. Increasing voltage to 14.4 volts will increase the power output of the amplifier in the same proportion. Maximum input voltage is 16 volts while the minimum voltage is 12 volts. *** DO NOT EXCEED 16 INPUT VOLTAGE. *** PROTECTION CIRCUITRY: Cadence amplifiers incorporate many outstanding protection circuits to help protect the amplifier from being damaged during operating conditions.
MOUNTING AND WIRING ADJUSTING THE SYSTEM 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 150mV to 8 Volts.
4 CHANNEL AMP CLONE FEATURE The D100.4 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 up channels 1 - 2 and then channels 3 - 4 crossovers and gains separately not guaranteeing perfect balance or frequency cutoffs.
4 CHANNEL AMP WITH 4 C HANNEL INPUT SET INPUT MODE SWITCH TO 4CH POSITION (SWITCH SHOULD BE IN THE “UP” POSITION) If your head unit has 2 pairs of RCA output jacks, input Front Left and Front Right in to Channels 1 and 2. Then attach radio output Rear Left and Rear Right to Channels 3 and 4. Set the Input Mode Switch to 4Ch position. The pre amp circuitry will not mix any signals thereby preserving full Left to Right Balance and Front to Rear fader control.
4 CHANNEL AMPLIFIER BRIDGED TO 2 CHANNELS Channels 1 and 2 should be wired to speakers no lower than 2 ohm loads per channel in stereo. Channel 3 and 4 should be bridged as per the diagram wiring the woofer to Channel 3 positive side (+) and Channel 4 negative side ( – ) terminals. LEFT SUBWOOFER MINIMUM IMPEDANCE 4 OHMS 4 Ω BRIDGED CH2 CH1 REM SPEAKER CH3 Please see page 11 for RCA input configuration details and instructions when wiring a 3 channel system.
4 CHANNEL AMPLIFIER IN 3 CHANNEL MODE REMOTE SUBWOOFER LEVEL CONTROL (optional, see dealer for details) SUBWOOFER MINIMUM IMPEDANCE 8 OHMS LOW PASS FILTER INDUCTOR 4 CHANNEL WITH DUAL MIXED MONO CONFIGURATION BASS REMOTE CLONE FR/HP CH3-CH4 7V 0.2V 7V FRONT SPEAKERS 0.
2 CHANNEL AMPLIFIER 2 OHM / 4 OHM STEREO 2 CHANNEL AMPLIFIER 4 OHM BRIDGED REMOTE SUBWOOFER LEVEL CONTROL (optional, see dealer for details) BASS REMOTE LP/BP LEFT SPEAKER 4 OHM OR 2 OHM CROSSOVER MODE SWITCH IN FULL RANGE LP/BP RIGHT SPEAKER 4 OHM OR 2 OHM L CH4 R CH3 REM SPEAKER CH2 4 Ω BRIDGED CH1 L CH4 R CH3 SPEAKER 4 Ω BRIDGED CH1 CROSSOVER MODE SWITCH IN LOW PASS POSITION REM POWER CH2 FR/HP SUBWOOFER MINIMUM IMPEDANCE 4 OHMS POWER 17 FR/HP BASS REMOTE 18
CLASS D MONO BLOCK 1 OHM AMPLIFIER MONO BLOCK 2 OHM AMPLIFIERS SPEAKER SPEAKER - OR - 1 OHM MINIMUM LOAD 4 OHM SUBWOOFER DVC 4 OHM SUBWOOFER IN PARELLEL = 2 OHM LOAD 19 POWER POWER 2 OHM MINIMUM LOAD 4 OHM SUBWOOFER REM 1 Ω MINIMUM REM 1 2 Ω MINIMUM The D1600M is a 2 ohm mono block amplifier. No matter how many woofers you choose to wire up to this model, the final impedance should not fall below 2 ohms. Please see page 29 and 30 for various speaker impedance configurations.
TWIN AMPLIFIER BRIDGING You can only bridge 2 of the same amplifiers together. DO NOT bridge different models together. TWIN AMPLIFIER BRIDGING REMOTE SUBWOOFER LEVEL CONTROL (optional, see dealer for details) BASS REMOTE MASTER SUBSONIC FILTER INPUT GAINF LPF BASS REQUENCY FOCUS BASS BOOST PHASE CLIP LIMIT ON R OFF 7V 50Hz 250Hz 0.
TWIN AMPLIFIER BRIDGING D1800M / D2500M REM POWER SPEAKER 1 Ω MINIMUM TWIN AMPLIFIER BRIDGING SUBWOOFER MINIMUM IMPEDANCE 2 OHMS WITH 2 AMPS BRIDGED When bridging two D1800M OR D2500M amplifiers together, the final impedance load of the bridged amplifiers should be no lower than 2-ohms. Double power will occur at 2-ohms. When bridging two D800M OR D1600M amplifiers together, the final impedance load of the bridged amplifiers should be no lower than 4-ohms. Double power will occur at 4-ohms.
DAISY CHAINING MULTIPLE AMPLIFIERS SUBSONIC FILTER INPUT GAINF LPF BASS REQUENCY FOCUS BASS BOOST PHASE CLIP LIMIT ON R OFF 7V 50Hz 250Hz 0.
SPECIFICATIONS D100.4 NOTES D250.2 D350.
SPEAKER WIRING CHART SERIES: DUAL VOICE COIL SPEAKERS 4+4 OHM 4 X DUAL VC 8 OHM SPEAKERS WITH SERIES VOICE COILS, ALL IN PARALLEL 4+4 OHM 4+4 OHM PARALLEL: DUAL VOICE COIL SPEAKERS 4+4 OHM 2 OHM TO AMPLIFIER 8 OHM TO AMPLIFIER 4+4 OHM Please note that the minimum impedance load for single Cadence United Amplifiers is 2 ohm stereo and 4 ohm mono bridged. 2 OHM TO AMPLIFIER 4+4 OHM Lower impedance loads will cause overheating and may damage the amplifiers.
// Due to constant product improvements, these specifications are subject to change without notice. Though we tried our best to insure that this manual is free and clear of errors please don’t hold us responsible for printing errors. // Copyright by Cadence Acoustics LTD.
