INTRODUCTION Thank you for purchasing this Cadence Flash 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 16 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 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.
FEATURES “ARVA”- AUTOMATIC RAIL VOLTAGE ADJUSTMENT CIRCUITRY: Cadence Flash Series amplifiers feature “ARVA” circuitry in their power supply. This circuit constantly monitors the output stage and under high current demands will adjust the power supply rail voltages so that enough power is available for peak situations. The “ARVA” also improves the damping factor of the amplifier when playing low impedance mono loads.
INSTALLATION BASICS REMOTE TURN ON CONNECTION: 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.
INSTALLATION BASICS 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.) USING THE ELECTRONIC CROSSOVER - 4 CHANNEL MODEL The four channel models feature separate crossovers for channels 1-2 and 3-4.
MOUNTING AND WIRING MOUNTING THE AMPLIFIERS: Choose a convenient mounting location with unobstructed airflow. The Flash amplifiers feature four mounting tabs located at the amplifiers four corners. Using the supplied screws and grommets, gently mount the amplifier in to position. *** Do not over tighten the screws.*** The Flash Series amplifiers are supplied with built-in fuses, never replace the fuse that the amp came with, with one of a larger value.
OEM RADIO INTEGRATION WITH AUTOSTART This newest series of Flash amplifiers features our newest circuitry innovation. Say for example you are trying to integrate the Cadence Flash amplifier in to a system with an OEM radio which does not have RCA output jacks or a remote turn on wire for the amplifier, until now you would have had to configure a complicated relay system to turn on the amplifier and use en external high-low converter to send the signal in to the amplifier.
2 CHANNEL AMP WIRING All Cadence Flash two channel amplifiers can accommodate either 2 ohms or 4 ohms per channel in stereo, or one 4 ohm bridged subwoofer. The diagram on this page shows a basic 2 speaker set up, for example two 6” x 9” or 6.5” speakers operating in Full Range. Adjust Input level and Bass Drive as per page 6 - Adjusting the System.
3 CHANNEL MIXED MONO CROSSOVER SWITCH SETTING Here is how to get a three channel system out of a two channel amplifier. Crossover mode switch in Full Range. CROSSOVER MODE SWITCH IN FULL RANGE POSITION Hook up Left and Right Speakers normally as per diagram using high pass filter capacitors. Wire one subwoofer to the bridged channel utilizing a low pass filter inductor. You must use this capacitor and inductor system when using 4 ohm speakers and woofers.
2 CHANNEL AMP BRIDGED MONO REMOTE SUBWOOFER LEVEL CONTROL CROSSOVER SWITCH SETTING CROSSOVER MODE SWITCH IN LOW PASS POSITION When bridging Cadence two channel amplifiers, the lowest impedance for the bridged channel is 4 ohms. Set the crossover switch to Low Pass and Crossover Frequency Setting to 100 Hz as a beginning point for tuning your system. Dial in as much Bass Drive as necessary keeping in mind that too much Bass Drive can add unnecessary distortion to your system.
4 CHANNEL AMP WITH 2 CHANNEL INPUT If your head unit has only one pair of Left and Right RCA out put jacks, plug them in to RCA input Jacks 1 and 2 of the amplifier and set the Input model switch to the 2CH position. The amplifier preamp circuit will automatically mix the signals to channels 3 and 4 thereby preserving your Left and Right Balance control but with no Fade control Front to Rear.
4 CHANNEL AMPLIFIER WITH 4 CHANNEL INPUT 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.
BAsIC FOUR CHANNEL CONFIGURATION RIGHT SPEAKER 2-4 OHM CROSSOVER MODES SWITCH IN FULL RANGE POSITION FRONT SPEAKERS LEFT SPEAKER 2-4 OHM Install any combination of speakers independently on all 4 channels being careful not to load any single channel below 2 ohm stereo. For typical 6” x 9” or 6.5” or component speaker installs, set the Crossover Mode Switch to Full Range.
4 CHANNEL AMPLIFER BRIDGED TO 2 CHANNELS 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. The dashboard bass remote control works only on channels set to Low Pass.
4 CHANNEL AMPLIFIER IN 3 CHANNEL MODE CH 1-2 CROSSOVER MODE SWITCH IN HIGH PASS POSITION REMOTE SUBWOOFER LEVEL CONTROL 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.
4 CHANNEL WITH MIXED MONO REMOTE SUBWOOFER LEVEL CONTROL SUBWOOFER MINIMUM IMPEDANCE 4 OHMS CH 1-2 CROSSOVER MODE SWITCH IN FULL RANGE POSITION CHANNEL 3-4 CONTROL ONLY CH 3-4 CROSSOVER MODE SWITCH IN LOW PASS POSITION LEFT SPEAKER FRONT SPEAKERS RIGHT SPEAKER MINIMUM SPEAKER IMPEDANCE 4 OHMS SUBWOOFER MINIMUM IMPEDANCE 8 OHMS LOW PASS FILTER INDUCTOR 17
4 CHANNEL WITH DUAL MIXED MONO CONFIGURATION LOW PASS FILTER INDUCTOR REAR SPEAKERS ALL CROSSOVER SETTINGS IN THIS MODE SHOULD BE FULL RANGE. SUBWOOFER MINIMUM IMPEDANCE 8 OHMS HIGH PASS FILTER CAPACITORS LEFT SPEAKER 4 OHM RIGHT SPEAKER 4 OHM COMPONENT VALUES FOR 6dB PASSIVE CROSSOVER LEFT SPEAKER FRONT SPEAKERS RIGHT SPEAKER MINIMUM SPEAKER IMPEDANCE 4 OHMS SUBWOOFER MINIMUM IMPEDANCE 4-8 OHMS LOW PASS FILTER INDUCTOR 18 FREQUENCY INDUCTOR CAPACITOR 80 Hz 100 Hz 120 Hz 150 Hz 7.5 mH 6.
FIVE CHANNEL INPUT MODE If your head unit has one single pair of RCA outputs, input them in to the amplifiers Channel 1 and 2 input jacks and set the Input Mode Switch to 2Ch. The amplifiers preamp circuitry will automatically mix all the channels and output will occur on all 5 channels. There will be Left and Right balance with constant subwoofer but no Front to Read Fader Control.
5 CHANNEL AMPLIFIER SPEAKER WIRING Minimum impedance for channels 1 through 4 is 2 ohm stereo. Channel five minimum impedance is 2 ohm mono capable.
MONO BLOCK 2 OHM AMPLIFIERS Models: F500-1 / F700-1 2 OHM MINIMUM LOAD 4 OHM SUBWOOFER 4 OHM SUBWOOFER - OR DVC 4 OHM SUBWOOFER IN PARALLEL = 2 OHM LOAD Both models F500-1 and 700-1 are 2 ohm 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 28 and 29 for various speaker impedance configurations.
CLASS D MONO BLOCK 1 OHM AMPLIFIER GND Model: F1200-1D The F1200-1D is a 1 ohm stable mono block amplifier. It features RCA pre amp line output for feeding of a full range signal to a secondary full range amplifier in a multi-amp system. The F1200-1D also features our Integrated OEM Auto Start Sensing Circuit when used through the High Level Speaker input. No external remote trigger wire is required when using the High Level Input to start the amplifier.
F1200-1D SPEAKER CONFIGURATION 1 OHM MINIMUM LOAD 2 OHM SUBWOOFER Model F1200-1D is a 1 ohm mono block Class D 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 28 and 29 for various speaker impedance configurations.
F1200-1d TWIN AMPLFIER BRIDGING MASTER GND SWITCH SET TO MASTER MASTER / SLAVE LINK SLAVE GND 24 SWITCH SET TO SLAVE REMOTE SUBWOOFER LEVEL CONTROL
F1200-1d TWIN AMPLFIER BRIDGING Two F1200-1D can be ridged together for double the power output into a 2-ohm load. Though each amp is 1 ohm stable, when bridging amplifiers, you must bridge them to a 2 ohm load. Input the head unit signal into the MASTER amplifier and set the Bridged Mode switch to Master. Use the supplied DATA CABLE to send the fully processed signal from the MASTER amplifier to the secondary SLAVE amplifier and set the Bridged Mode switch to Slave.
F1200-1d TWIN AMPLFIER BRIDGING SUBWOOFER MINIMUM IMPEDANCE 2 OHMS IMPORTANT NOTE: CONNECT THE TWO SPEAKER NEGATIVES TOGETHER WITH A #12 WIRE STRAP.
F1200-1d TWIN AMPLFIER BRIDGING Once again, when bridging two amplifiers together, the final impedance load of the bridged amplifiers should be no lower than 2-ohms. Double power will occur at 2-ohms. Master amplifiers positive (+) speaker terminal should be wired to the positive terminal of the subwoofer. Slave amplifiers positive (+) speaker terminal should be wired to negative terminal of the subwoofer.
SPECIFICATIONS F500-1 F1200-1D • Rated Power: 350 Watts RMS @ 4 ohm • Rated Power: 700 Watts RMS @ 2 ohm • Rated Power: 500 Watts RMS @ 2 ohm / 1000 Watts Peak Power • Rated Power: 1200 Watts RMS @ 1 ohm / 2400 Watts Peak Power • Minimum THD at Rated Power: < 0.05% • Minimum THD at Rated Power: < 0.
SPECIFICATIONS F300-2 F400-4 F800-4HC • Rated Power: 125 Watts RMS @ 4 ohm • Rated Power: 75 Watts RMS @ 4 ohm • Rated Power: 125 Watts RMS @ 4 ohm • Rated Power: 175 Watts RMS @ 2 ohm • Rated Power: 125 Watts RMS @ 2 ohm • Rated Power: 175 Watts RMS @ 2 ohm • Bridged Power: 350 Watts @ 4 ohm RMS Mono / 700 Watts Peak Power 2 x 250 Watts @ 4 ohm RMS Mono / 1000 Watts Peak Power • Rated Power: 225 Watts RMS @ 1 ohm • Minimum THD at Rated Power: < 0.05% • Minimum THD at Rated Power: < 0.
SPEAKER WIRING CHART 4 X DUAL VC 8 OHM SPEAKERS WITH SERIES VOICE COILS, ALL IN PARALLEL 4+4 OHM 4+4 OHM 4+4 OHM 4+4 OHM 2 OHM TO AMPLIFIER 2 OHM SERIES: SINGLE VOICE COIL SPEAKERS PARALLEL: SINGLE VOICE COIL SPEAKERS 4 OHM TO AMPLIFIER 2 OHM 30 2 OHM TO AMPLIFIER 4 OHM 4 OHM
SPEAKER WIRING CHART SERIES: DUAL VOICE COIL SPEAKERS 8 OHM TO AMPLIFIER PARALLEL: DUAL VOICE COIL SPEAKERS Please note that the minimum impedance load for single Cadence Flash Amplifiers is 2 ohm stereo and 4 ohm mono bridged. 4+4 OHM 4+4 OHM 2 OHM TO AMPLIFIER 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.
