MB Quart QA1-900.6D Q-Series 900 watt six channel DSP amplifier that allows complete tuning control from your PC, iPhone, or Android device for a perfectly dialed-in sound experience. Features a through-glass top design with red LED accent lighting. Low Noise Preamplifier Circuit Q-Stasis Pre Amplifier Stage: The highly engineered Q-Stasis pre-amplifier stage reduces incoming noise from source units dramatically improving sound quality. RCA Inputs 3 pair of nickel-plated RCAs that allow for secure connections and is corrosion resistant. High Level Inputs Easily tie into OEM audio systems that do not offer RCA output to maximize after market amplifier power. Operation Mode Six channel operation: Flexible installation allows this amplifier to run in six channel or bridged mono modes. Crossover Type Complete control of amplifier signal via the DSP PC/iPhone/Android applications. Electronic Equalizer DSP: Parametric (full variable customizing of Freq) / Graphic (31 bands can't change the Freq) Class / Topology Full Range Class D: Highly efficient circuit topology which helps the amplifer provide high performance output. Output Device Technology MB Quart output devices, FLUID-FETS are painstakingly selected for their ability to efficiently produce power and provide high level of sound quality. Heat Sink Extruded aluminum heat sink that is machined to it final shape allows the amplifer to run lower impedance for longer duration. Power Supply Q-series amplifiers use a MOSFET Pulse Width Modulation power supply that allows the amplifier to produce efficient power without taxing the electrical system. Output Connections Heavy duty output terminals allows for secure connection so electrical signal can pass into wiring and resist corrosion. Connection Type Nickel plated corrosion resistant connections. Full-Range RCA Outputs for Signal Pass Through One pair of RCA connectors, Ch1a & Ch1b output allow distortion free signal to be passed through this amplifier to feed that signal to a mono-block amplifier without the need for noise generating Y cables. LED System Protection Circuitry Diagnostics Three-stage protection circuits: Monitor thermal, overload, DC, and speaker short protection with lighted indicators on the amplifier end panel. Bass Remote Included Included: Wired LED Remote allows adjustments to audio playback, preset selection, sub and master volume. Phase Adjustment DSP: 0º-180º Parametric / Signal Contouring DSP: Parametric (full variable customizing of Freq) / Graphic (31 bands can't change the Freq) Auto Turn-On DC SIGNAL SENSE: The DC SIGNAL SENSE switch will allow the amp to turn on when a signal is received on the High Level inputs, so an amplifier remote turn on wire is not needed to turn on the amplifier. This feature can also be turned off. Additional Features PC/iPhone/Android applications allow for complete tuning control to perfectly dial-in the sound experience. Integrated Bluetooth receiver for controlling the DSP smartphone application. REM OUT Function for daisy chaining remote wire to an additional amplifier like a QA1-1500.1D Details & Specs Type Amplifier Brand MB Quart Series Q-Series Category Mobile Condition New Color Grey Warranty 1 Year Compatible Vehicles Universal Amp Class Full Range Class D Amp Total Channels 6 Amp Max Power (watts) 900 Amp Power @ 2 Ohms (ch x watts) 6 x 150 Amp Power @ 4 Ohms (ch x watts) 6 x 90 Amp Mono Bridged @ 4 Ohms (ch x watts) 3 x 300 Amp Crossover DSP: 20Hz-20kHz Amp Variable High Pass Crossover 12dB per Octave DSP: 20Hz-20kHz Amp Variable Low Pass Crossover 12dB per Octave DSP: 20Hz-20kHz Amp Tone Control / Parametric EQ Yes – DSP/Parametric/Graphic Amp Bass Boost DSP: 20Hz-20kHz Amp Subsonic Filter DSP: 20Hz-20kHz Amp Phase Shift DSP: 0-180º Amp Variable Voltage High: 1.4-14.5V, Low: 0.5-5.1V Amp Signal to Noise > 96dB Amp Frequency Response 10Hz-23kHz Amp Total Harmonic Distortion (THD) 1.0% Amp Speaker Level Audio Inputs Yes Pre-amp Audio Outputs Yes Amp Power Terminal 12v/GND 4 AWG Amp Speaker Terminal Wire Gauge 12 AWG Amp Fusing 2 x 30A Mini ATC Proposition 65 Notice WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov