CSA SERIES AMPLIFIER // OWNERS MANUAL
FEATURES INTRODUCTION Thank you for purchasing this Cadence Momentum CSA 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.
INSTALLATION BATTERY VOLTAGE: INSTALLATION BASICS: Cadence Momentum CSA amplifiers are rated and regulated to 14.4 volts and below. Maximum input voltage is 16 volts while the minimum voltage is 12 volts. 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. *** DO NOT EXCEED 16 INPUT VOLTAGE.
FEATURES The wire harness should be made of red primary cable of at least 8 gauge for the CSA1000.2 and at least 4 gauge for all other larger models. 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.
POWER / GROUND / REMOTE WIRING DIAGRAM CH3 CH4 CH3 POWER INPUT FUSES CH4 BRIDGED 4 OHM CH1C H2 GND 4 OHM BRIDGED REM+ 12V FUSE GROUND STEREO LOUD FM2 93.
MOUNTING MOUNTING THE AMPLIFIER: Choose a convenient mounting location with unobstructed airflow. The Momentum CSA series amplifiers feature four mounting tabs located near the amplifiers four corners. Using the supplied screws and grommets, gently mount the amplifier into position. *** Do not over tighten the screws.
4 CHANNEL AMP WITH 2 C HANNEL INPUT (CSA1000.4) If your head unit has only one pair of Left and Right RCA out put jacks use RCA Y adaptors to split the signal. Right output should go to Channel 1/2 inputs, Left output should got to Channel 3/4 inputs. TO AUDIO OUTPUTS OF HEAD UNIT OR SIGNAL PROCESSOR WITH STEREO OUTPUTS STEREO LOUD FM2 93.
4 CHANNEL AMP WITH 4 C HANNEL INPUT (CSA1000.4) 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. Should your head unit have an additional subwoofer RCA output, that typically needs to be attached to a separate subwoofer amplifier.
4 CHANNEL AMP WITH 4 C HANNEL OUTPUT (CSA 1000.4) Install any combination of speakers independently on all 4 channels being careful not to load any single channel below 2 ohm stereo.
4 CHANNEL AMP BRIDGED TO 2 CHANNELS (CSA 1000.4) When bridging the four channel amplifier, make sure that your final woofer impedance on each bridged channel is no lower than 4 ohms. Set the Crossover mode switch to Low Pass and begin by setting the crossover frequency control to 100Hz and tuning from there.
4 CHANNEL AMPLIFIER IN 3 CHANNEL MODE (CSA 1000.4) 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. Set the crossover mode switch of Channels 1 and 2 to High Pass, while Channels 3 and 4 should be set to Low Pass.
4 CHANNEL AMPLIFIER IN 3 CHANNEL MODE (CSA 1000.4) Set the crossover mode switch of Channels 1 and 2 to High Pass, while Channels 3 and 4 should be set to Low Pass. SUBWOOFER MINIMUM IMPEDANCE 8 OHMS LOW PASS FILTER INDUCTOR COMPONENT VALUES FOR 6dB PASSIVE CROSSOVER FREQUENCY 80 Hz 100 Hz 120 Hz 150 Hz FRONT SPEAKERS LEFT SPEAKER 4 OHM RIGHT SPEAKER 4 OHM CH3 CH4 CH3 INDUCTOR CAPACITOR 7.5 mH 6.5 mH 5.
4 CHANNEL WITH DUAL MIXED MONO CONFIGURATION (CSA 1000.4) ALL CROSSOVER SETTINGS IN THIS MODE SHOULD BE SET TO FULL RANGE.
2 CHANNEL AMPLIFIER 2 OHM / 4 OHM STEREO (CSA 1000.2, 2000.2) For this configuration place crossover mode switch in full range.
2 CHANNEL AMPLIFIER 4 OHM BRIDGED (CSA 1000.2, CSA 2000.2) For this configuration place crossover mode switch in low pass position.
CLASS A/B MONO BLOCK 2 OHM AMPLIFIER (CSA 3000.1, CSA4000.1) The CSA 3000.1 and CSA 4000.1 are 2 ohm Class A/B mono block amplifiers. No matter how many woofers you choose to wire up to these models, the final impedance should not fall below 2 ohms. Please see page 21 and 22 for various speaker impedance configurations.
CLASS D MONO BLOCK 1 OHM AMPLIFIER (CSA 5000.1) The CSA 5000.1 is a 1 ohm Class D mono block amplifier. No matter how many woofers you choose to wire up to this amplifier the final impedance load should not fall below 1 ohm. Please see pages 21 and 22 for various speaker impedance configurations.
INSTALLATION NOTES 18
SPECIFICATIONS CSA 1000.2 CSA 1000.4 CSA 2000.2 CSA 3000.
CSA 4000.1 CSA 5000.1 • RMS POWER: 800 WATTS RMS @ 2 OHM MONO • RMS POWER: 1200 WATTS RMS @ 1 OHM MONO • RATED POWER: 400 WATTS RMS @ 4 OHM MONO • RATED POWER: 600 WATTS RMS @ 2 OHM MONO • PEAK POWER: 1600 WATTS • PEAK POWER: 2400 WATTS • DYNAMIC POWER: 2400 WATTS • DYNAMIC POWER: 3000 WATTS • MINIMUM HARMONIC DISTORTION: >0.01% • MINIMUM HARMONIC DISTORTION: >0.
SPEAKER WIRING CHART 4+4 OHM 4 X DUAL VC 8 OHM SPEAKERS WITH SERIES VOICE COILS, ALL IN PARALLEL 4+4 OHM 4+4 OHM 4+4 OHM 2 OHM TO AMPLIFIER 2 OHM SERIES: SINGLE VOICE COIL SPEAKERS 4 OHM TO AMPLIFIER PARALLEL: SINGLE VOICE COIL SPEAKERS 2 OHM 21 2 OHM TO AMPLIFIER 4 OHM 4 OHM
SERIES: DUAL VOICE COIL SPEAKERS 8 OHM TO AMPLIFIER PARALLEL: DUAL VOICE COIL SPEAKERS 4+4 OHM Please note that the minimum impedance load for single a Momentum CS series amplifier 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. Do not mix different impedance speakers in series and / or parallel combinations, as unequal power sharing and acoustic outputs will result.
// 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.
