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The amplifier features our own hybrid digital technology that was made famous with the venerable A7HC--only we took it one step further. Not only is the Amadeus a Digital Class D amplifier it is also capable of playing the full range audio spectrum. (All models except the M7000 which is a pure sub woofer amplifier.) With this new circuitry, we have been able, to package large amounts of power in very small heat sink chassis without any sacrifice to our standards. You wont believe your ears, the sound will be perfectly balanced and transparent. The sound of the Amadeus is enveloping and surreal.You will be so totally immersed in the sound that you will imagine yourself sitting at the front row of a concert. We have not doubt that the Cadence Amadeus series of amplifiers will revolutionize high fidelity car audio reproduction. We have spared no expense in engineering, designing and building the Amadeus Amplifiers, creating the most high fidelity, rugged, reliable and best performing amplifiers on the market In fact we are so sure of the quality that we backup every Amadeus Amplifier with our exclusive two - year warranty which exemplifies our commitment to excellence in car audio musical reproduction. (See enclosed warranty card for details). Please read this installation guide carefully for proper use of your Cadence power amplifier. Should you need technical assistance during or after your installation please call our technical-line between 9:30 AM and 5:00 PM EST at 732/370-5400.Read this entire guide 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 levels it is recommended that you use ear safety devices. Playing Cadence amplifiers and signal processors 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 unit, 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. 1 NICKEL PLATED TERMINALS All the terminals on the amplifier are solid brass and satin nickel plated for high conductivity and minimum impedance loss. The power and ground terminals are extra large and capable of accepting 4 gauge wire. The speaker terminals can accept 8 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. POWER AND PROTECTION CIRCUITRY Amadeus full range amplifiers feature our unique IC controlled protection circuitry. This sophisticated circuit constantly monitors the heatsink internal temperature and various voltages, adjusting the amp automatically and protecting it from dangerous conditions. The 2 LEDs located on the input side of the amplifier provide indication of the amplifier status, and the Power LED will light Blue when the amplifier is receiving proper power, ground and remote voltages and the IC monitoring sequence indicates the amp is functional. In case the amplifier encounters a diagnostic condition as listed below, the second LED will turn RED indicating a Diagnostic condition. When a diagnostic condition is not corrected the amplifier will eventually shut off. There are certain critical diagnostic conditions which will turn the amplifier of immediately. 1. Speaker short circuit. 2. Input Overload. 3.Thermal Overload. 4. Reverse Polarity. To reset the amplifier you must first diagnose what caused the problem, correct the fault and restart the system. See the Trouble Shooting page for further details. MUTE CIRCUIT The Amadeus amplifiers feature an anti-thump, mute and delay circuit. This eliminates irritating and speaker damaging turn-on and turn-off transients normally experienced with less expensive amplifiers. 2 BASS DRIVE EQUALIZATION CIRCUITRY A narrow "Q" shelving equalization circuit is included in the amplifiers. The equalization system is preset at 45Hz.The boost control allows you to add up to 12dB of Bass Drive effect. Utilize the Bass Drive to tailor your bass response to your systems needs. Please keep in mind that by adding Bass Drive you are adding stress on your speakers. Make sure that your speakers can handle the extra power output! It would be foolish to add 12dB of gain to low excursion 8" and 10" Subwoofers. ADR : -ACTIVE DYNAMIC REGULATION Amadeus amplifiers feature our proprietary ADR, Active Dynamic Regulated power supplies. 100% HexFET devices are utilized in the power supply for high speed(100K Hz) switching frequencies. The power supplies are capable of suppling the main amplifier with a considerable amount of reserve voltage for peak "high demand" situations. The...