{"product_id":"mb-quart-mbq-qa1-900-6dsp-q-series-900w-6-channel-dsp-amplifier","title":"MB Quart MBQ-QA1-900.6DSP Q-Series 900 Watt 6-Channel Full-Range Class-D DSP Amplifier in Grey","description":"\u003ch2 class=\"text-text-100 mt-3 -mb-1 text-[1.125rem] font-bold\"\u003e\u003cstrong\u003eMB Quart MBQ-QA1-900.6DSP Q-Series 900 Watt 6-Channel Full-Range Class-D DSP Amplifier in Grey\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003eA 900W 6-channel Full-Range Class-D DSP amplifier with Bluetooth app control for PC, iPhone, and Android, delivering 6 x 150W at 2-ohm or 3 x 300W bridged at 4-ohm. Features a fully DSP-controlled signal path including parametric and 31-band graphic EQ, variable crossovers, phase adjustment, subsonic filter, and bass boost across the full 20Hz-20kHz range. Includes a wired LED bass remote. Q-Stasis low-noise pre-amplifier stage, FLUID-FETS output devices, through-glass top design with red LED accent lighting. Backed by a 2 year warranty.\u003c\/p\u003e\n\u003ch3 class=\"text-text-100 mt-2 -mb-1 text-base font-bold\"\u003e\u003cstrong\u003eProduct Overview\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003eThe MB Quart MBQ-QA1-900.6DSP is a 900W 6-channel Full-Range Class-D amplifier from the Q-Series range, featuring a fully integrated DSP (Digital Signal Processor) that provides complete tuning control via dedicated PC, iPhone, and Android applications. The amplifier's integrated Bluetooth receiver enables wireless connection to the DSP app, allowing gain, crossover, EQ, phase, subsonic filter, and bass boost parameters to be adjusted in real time from a smartphone or PC without opening the boot or gaining physical access to the amplifier.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003eRated power is 6 x 90W at 4-ohm, 6 x 150W at 2-ohm, and 3 x 300W bridged at 4-ohm. The Q-Stasis pre-amplifier stage reduces incoming noise from the source unit, improving signal quality before amplification. MB Quart's proprietary FLUID-FETS output devices are selected for efficient power production and high-level sound quality. A MOSFET Pulse Width Modulation power supply enables efficient output without placing excessive demand on the vehicle's electrical system.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003eThree input pairs of nickel-plated RCA connectors with hex screw terminals provide secure, corrosion-resistant connections. High-level inputs allow direct integration with OEM audio systems that do not have RCA outputs. A full-range RCA pass-through output pair (Ch1a and Ch1b) allows a distortion-free signal to be passed to a downstream monoblock amplifier without Y cables. An included wired LED bass remote allows adjustments to audio playback, DSP preset selection, and subwoofer and master volume from the cabin. DC Signal Sense auto turn-on activates the amplifier when a signal is detected on the high-level inputs, removing the need for a dedicated remote wire. A REM OUT function allows daisy chaining to a downstream amplifier such as the QA1-1500.1D. The through-glass top design with red LED accent lighting gives the amplifier a premium visual appearance.\u003c\/p\u003e\n\u003chr class=\"border-border-200 border-t-0.5 my-3 mx-1.5\"\u003e\n\u003ch3 class=\"text-text-100 mt-2 -mb-1 text-base font-bold\"\u003e\u003cstrong\u003eFeatures \u0026amp; Benefits\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eFull DSP Control via Bluetooth App - PC, iPhone, Android:\u003c\/strong\u003e The integrated Bluetooth receiver connects to the MB Quart DSP application on PC, iPhone, or Android, giving complete real-time control over all signal processing parameters including crossovers, EQ, phase, gain, subsonic filter, and bass boost without physical access to the amplifier.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eParametric and 31-Band Graphic EQ via DSP:\u003c\/strong\u003e Two EQ modes are available through the DSP application - a fully variable parametric EQ for precise frequency, gain, and Q adjustment, and a 31-band graphic EQ for broad tonal shaping. Both are adjustable across the full 20Hz-20kHz range.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eQ-Stasis Pre-Amplifier Stage - Low-Noise Signal Path:\u003c\/strong\u003e The Q-Stasis pre-amplifier stage is engineered to reduce incoming noise from the source unit before the signal enters the amplification chain, delivering a cleaner input signal and measurably improved signal-to-noise ratio of greater than 96dB.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eFLUID-FETS Output Devices:\u003c\/strong\u003e MB Quart's proprietary FLUID-FETS output transistors are individually selected for their ability to efficiently produce power and deliver high sound quality, contributing to the amplifier's Full-Range Class-D efficiency and low THD of 1.0%.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eWired LED Bass Remote Included:\u003c\/strong\u003e The included wired LED bass remote allows in-cabin control of audio playback, DSP preset selection, and subwoofer and master volume adjustment without returning to the amplifier installation location.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eDC Signal Sense Auto Turn-On with REM OUT:\u003c\/strong\u003e The DC Signal Sense function activates the amplifier automatically when a signal is detected on the high-level inputs, removing the need for a dedicated remote turn-on wire. A REM OUT function allows the remote signal to be passed to a downstream amplifier such as the QA1-1500.1D for daisy-chained system installations.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eFull-Range RCA Pass-Through - Distortion-Free Downstream Signal:\u003c\/strong\u003e One pair of full-range RCA outputs (Ch1a and Ch1b) passes the signal distortion-free to a connected monoblock amplifier without the noise typically introduced by Y cables, simplifying system expansion.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eThree-Stage Protection Circuitry with LED Diagnostics:\u003c\/strong\u003e Thermal, overload, DC, and speaker short protection are all monitored by the three-stage protection circuit, with lighted indicators on the amplifier end panel to identify fault conditions at a glance.\u003c\/p\u003e\n\u003chr class=\"border-border-200 border-t-0.5 my-3 mx-1.5\"\u003e\n\u003ch3 class=\"text-text-100 mt-2 -mb-1 text-base font-bold\"\u003e\u003cstrong\u003eTechnical Specs\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cdiv class=\"overflow-x-auto w-full px-2 mb-6\"\u003e\n\u003ctable class=\"min-w-full border-collapse text-sm leading-[1.7] whitespace-normal\"\u003e\n\u003cthead class=\"text-left\"\u003e\n\u003ctr\u003e\n\u003cth scope=\"col\" class=\"text-text-100 border-b-0.5 border-border-300\/60 py-2 pr-4 align-top font-bold\"\u003eSpecification\u003c\/th\u003e\n\u003cth scope=\"col\" class=\"text-text-100 border-b-0.5 border-border-300\/60 py-2 pr-4 align-top font-bold\"\u003eDetail\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd class=\"border-b-0.5 border-border-300\/30 py-2 pr-4 align-top\"\u003eSKU\u003c\/td\u003e\n\u003ctd class=\"border-b-0.5 border-border-300\/30 py-2 pr-4 align-top\"\u003eMBQ-QA1-900.6DSP\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"border-b-0.5 border-border-300\/30 py-2 pr-4 align-top\"\u003eAmp Class\u003c\/td\u003e\n\u003ctd class=\"border-b-0.5 border-border-300\/30 py-2 pr-4 align-top\"\u003eFull-Range Class-D\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"border-b-0.5 border-border-300\/30 py-2 pr-4 align-top\"\u003eTotal Channels\u003c\/td\u003e\n\u003ctd class=\"border-b-0.5 border-border-300\/30 py-2 pr-4 align-top\"\u003e6\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"border-b-0.5 border-border-300\/30 py-2 pr-4 align-top\"\u003eTotal Max Power\u003c\/td\u003e\n\u003ctd class=\"border-b-0.5 border-border-300\/30 py-2 pr-4 align-top\"\u003e900W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"border-b-0.5 border-border-300\/30 py-2 pr-4 align-top\"\u003eRated Power at 4-ohm\u003c\/td\u003e\n\u003ctd class=\"border-b-0.5 border-border-300\/30 py-2 pr-4 align-top\"\u003e6 x 90W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"border-b-0.5 border-border-300\/30 py-2 pr-4 align-top\"\u003eRated Power at 2-ohm\u003c\/td\u003e\n\u003ctd class=\"border-b-0.5 border-border-300\/30 py-2 pr-4 align-top\"\u003e6 x 150W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"border-b-0.5 border-border-300\/30 py-2 pr-4 align-top\"\u003eBridged Mono at 4-ohm\u003c\/td\u003e\n\u003ctd class=\"border-b-0.5 border-border-300\/30 py-2 pr-4 align-top\"\u003e3 x 300W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"border-b-0.5 border-border-300\/30 py-2 pr-4 align-top\"\u003eRated Power at 1-ohm\u003c\/td\u003e\n\u003ctd class=\"border-b-0.5 border-border-300\/30 py-2 pr-4 align-top\"\u003eNot rated\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"border-b-0.5 border-border-300\/30 py-2 pr-4 align-top\"\u003eSignal to Noise Ratio\u003c\/td\u003e\n\u003ctd class=\"border-b-0.5 border-border-300\/30 py-2 pr-4 align-top\"\u003eGreater than 96dB\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"border-b-0.5 border-border-300\/30 py-2 pr-4 align-top\"\u003eTHD\u003c\/td\u003e\n\u003ctd class=\"border-b-0.5 border-border-300\/30 py-2 pr-4 align-top\"\u003e1.0%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"border-b-0.5 border-border-300\/30 py-2 pr-4 align-top\"\u003eFrequency Response\u003c\/td\u003e\n\u003ctd class=\"border-b-0.5 border-border-300\/30 py-2 pr-4 align-top\"\u003e10 Hz - 23 kHz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"border-b-0.5 border-border-300\/30 py-2 pr-4 align-top\"\u003eDSP Crossover Range\u003c\/td\u003e\n\u003ctd class=\"border-b-0.5 border-border-300\/30 py-2 pr-4 align-top\"\u003e20 Hz - 20 kHz (variable high-pass and low-pass, 12dB\/Octave)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"border-b-0.5 border-border-300\/30 py-2 pr-4 align-top\"\u003eDSP Subsonic Filter\u003c\/td\u003e\n\u003ctd class=\"border-b-0.5 border-border-300\/30 py-2 pr-4 align-top\"\u003e20 Hz - 20 kHz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"border-b-0.5 border-border-300\/30 py-2 pr-4 align-top\"\u003eDSP Bass Boost\u003c\/td\u003e\n\u003ctd class=\"border-b-0.5 border-border-300\/30 py-2 pr-4 align-top\"\u003e20 Hz - 20 kHz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"border-b-0.5 border-border-300\/30 py-2 pr-4 align-top\"\u003eDSP Phase Adjustment\u003c\/td\u003e\n\u003ctd class=\"border-b-0.5 border-border-300\/30 py-2 pr-4 align-top\"\u003e0 - 180 degrees\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"border-b-0.5 border-border-300\/30 py-2 pr-4 align-top\"\u003eDSP EQ\u003c\/td\u003e\n\u003ctd class=\"border-b-0.5 border-border-300\/30 py-2 pr-4 align-top\"\u003eParametric (full variable) + 31-Band Graphic\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"border-b-0.5 border-border-300\/30 py-2 pr-4 align-top\"\u003eDSP Control\u003c\/td\u003e\n\u003ctd class=\"border-b-0.5 border-border-300\/30 py-2 pr-4 align-top\"\u003eBluetooth app (PC \/ iPhone \/ Android)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"border-b-0.5 border-border-300\/30 py-2 pr-4 align-top\"\u003eInput Voltage (High Level)\u003c\/td\u003e\n\u003ctd class=\"border-b-0.5 border-border-300\/30 py-2 pr-4 align-top\"\u003e1.4 - 14.5V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"border-b-0.5 border-border-300\/30 py-2 pr-4 align-top\"\u003eInput Voltage (Low Level)\u003c\/td\u003e\n\u003ctd class=\"border-b-0.5 border-border-300\/30 py-2 pr-4 align-top\"\u003e0.5 - 5.1V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"border-b-0.5 border-border-300\/30 py-2 pr-4 align-top\"\u003eRCA Inputs\u003c\/td\u003e\n\u003ctd class=\"border-b-0.5 border-border-300\/30 py-2 pr-4 align-top\"\u003e3 Pair (Nickel-Plated, Hex Screw Terminals)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"border-b-0.5 border-border-300\/30 py-2 pr-4 align-top\"\u003eHigh-Level Inputs\u003c\/td\u003e\n\u003ctd class=\"border-b-0.5 border-border-300\/30 py-2 pr-4 align-top\"\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"border-b-0.5 border-border-300\/30 py-2 pr-4 align-top\"\u003eRCA Pass-Through Outputs\u003c\/td\u003e\n\u003ctd class=\"border-b-0.5 border-border-300\/30 py-2 pr-4 align-top\"\u003e1 Pair (Ch1a and Ch1b, Full-Range)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"border-b-0.5 border-border-300\/30 py-2 pr-4 align-top\"\u003ePre-Amp Stage\u003c\/td\u003e\n\u003ctd class=\"border-b-0.5 border-border-300\/30 py-2 pr-4 align-top\"\u003eQ-Stasis\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"border-b-0.5 border-border-300\/30 py-2 pr-4 align-top\"\u003eOutput Devices\u003c\/td\u003e\n\u003ctd class=\"border-b-0.5 border-border-300\/30 py-2 pr-4 align-top\"\u003eFLUID-FETS\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"border-b-0.5 border-border-300\/30 py-2 pr-4 align-top\"\u003ePower Supply\u003c\/td\u003e\n\u003ctd class=\"border-b-0.5 border-border-300\/30 py-2 pr-4 align-top\"\u003eMOSFET PWM\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"border-b-0.5 border-border-300\/30 py-2 pr-4 align-top\"\u003eAuto Turn-On\u003c\/td\u003e\n\u003ctd class=\"border-b-0.5 border-border-300\/30 py-2 pr-4 align-top\"\u003eDC Signal Sense (switchable)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"border-b-0.5 border-border-300\/30 py-2 pr-4 align-top\"\u003eRemote Output\u003c\/td\u003e\n\u003ctd class=\"border-b-0.5 border-border-300\/30 py-2 pr-4 align-top\"\u003eREM OUT (for downstream amplifier chaining)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"border-b-0.5 border-border-300\/30 py-2 pr-4 align-top\"\u003eBass Remote\u003c\/td\u003e\n\u003ctd class=\"border-b-0.5 border-border-300\/30 py-2 pr-4 align-top\"\u003eWired LED Remote (included)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"border-b-0.5 border-border-300\/30 py-2 pr-4 align-top\"\u003ePower Terminal\u003c\/td\u003e\n\u003ctd class=\"border-b-0.5 border-border-300\/30 py-2 pr-4 align-top\"\u003e4 AWG\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"border-b-0.5 border-border-300\/30 py-2 pr-4 align-top\"\u003eSpeaker Terminal\u003c\/td\u003e\n\u003ctd class=\"border-b-0.5 border-border-300\/30 py-2 pr-4 align-top\"\u003e12 AWG\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"border-b-0.5 border-border-300\/30 py-2 pr-4 align-top\"\u003eFusing\u003c\/td\u003e\n\u003ctd class=\"border-b-0.5 border-border-300\/30 py-2 pr-4 align-top\"\u003e2 x 30A Mini ATC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"border-b-0.5 border-border-300\/30 py-2 pr-4 align-top\"\u003eColour\u003c\/td\u003e\n\u003ctd class=\"border-b-0.5 border-border-300\/30 py-2 pr-4 align-top\"\u003eGrey\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"border-b-0.5 border-border-300\/30 py-2 pr-4 align-top\"\u003eDesign\u003c\/td\u003e\n\u003ctd class=\"border-b-0.5 border-border-300\/30 py-2 pr-4 align-top\"\u003eThrough-Glass Top with Red LED Accent Lighting\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"border-b-0.5 border-border-300\/30 py-2 pr-4 align-top\"\u003eWarranty\u003c\/td\u003e\n\u003ctd class=\"border-b-0.5 border-border-300\/30 py-2 pr-4 align-top\"\u003e2 Years\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003chr class=\"border-border-200 border-t-0.5 my-3 mx-1.5\"\u003e\n\u003ch3 class=\"text-text-100 mt-2 -mb-1 text-base font-bold\"\u003e\u003cstrong\u003eCompatible With \/ Goes Well With\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003eThe MBQ-QA1-900.6DSP is suited to a wide range of vehicle audio installations requiring multi-channel amplification with integrated DSP tuning. It is compatible with both aftermarket RCA source units and OEM head units via its high-level inputs. It is particularly well suited to 3-way active speaker systems, component speaker sets, or full-range speaker builds requiring individual channel control through the DSP app.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eGoes Well With:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul class=\"[li_\u0026amp;]:mb-0 [li_\u0026amp;]:mt-1 [li_\u0026amp;]:gap-1 [\u0026amp;:not(:last-child)_ul]:pb-1 [\u0026amp;:not(:last-child)_ol]:pb-1 list-disc flex flex-col gap-1 pl-8 mb-3\"\u003e\n\u003cli class=\"whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003eQA1-1500.1D\u003c\/strong\u003e - MB Quart Q-Series monoblock amplifier, compatible via the MBQ-QA1-900.6DSP's RCA pass-through output and REM OUT function for a complete speaker plus subwoofer system\u003c\/li\u003e\n\u003cli class=\"whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003eComponent speaker sets\u003c\/strong\u003e - The 6 independent DSP-controlled channels make this amplifier well suited to front and rear component speaker systems requiring individual tweeter, midrange, and subwoofer channel control\u003c\/li\u003e\n\u003cli class=\"whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003eDSR1\u003c\/strong\u003e - Rockford Fosgate Digital Signal Processor as an alternative signal processing option for systems not using the onboard MB Quart DSP\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr class=\"border-border-200 border-t-0.5 my-3 mx-1.5\"\u003e\n\u003ch3 class=\"text-text-100 mt-2 -mb-1 text-base font-bold\"\u003e\u003cstrong\u003eFrequently Asked Questions\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eWhat is the DSP and how is it controlled on the MBQ-QA1-900.6DSP?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003eThe DSP (Digital Signal Processor) is a built-in signal processing engine that controls all crossover, EQ, gain, phase, subsonic filter, and bass boost settings for all six channels. It is controlled wirelessly via Bluetooth through the MB Quart DSP app on PC, iPhone, or Android. The integrated Bluetooth receiver allows real-time adjustments from a smartphone or laptop without accessing the amplifier physically.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eWhat is the difference between the parametric EQ and the 31-band graphic EQ in the DSP?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003eThe parametric EQ allows full variable customisation of frequency, gain, and bandwidth (Q factor) for each band, making it the more precise tool for targeting and correcting specific acoustic problems. The 31-band graphic EQ provides preset frequency bands with fixed centre frequencies for broader tonal adjustment. Both are accessible through the DSP app and can be used to suit different tuning preferences and skill levels.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eCan the MBQ-QA1-900.6DSP be used with a factory OEM head unit?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003eYes. The amplifier includes high-level (speaker-level) inputs that allow direct connection to the speaker outputs of an OEM head unit that does not have RCA outputs. The DC Signal Sense auto turn-on feature also removes the need for a dedicated remote turn-on wire, making OEM integration straightforward.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eCan I add a subwoofer amplifier to a system using the MBQ-QA1-900.6DSP?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003eYes. The MBQ-QA1-900.6DSP includes a full-range RCA pass-through output pair (Ch1a and Ch1b) for feeding a downstream monoblock subwoofer amplifier without the signal degradation of Y cables. The REM OUT function also passes the remote turn-on signal to the secondary amplifier, enabling the entire system to power on from a single source. The MB Quart QA1-1500.1D monoblock amplifier is a recommended companion.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eWhat protection circuits are built into the MBQ-QA1-900.6DSP?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003eThe amplifier features a three-stage protection circuit that monitors thermal conditions, overload, DC offset, and speaker short circuits. LED indicators on the amplifier's end panel illuminate to identify which type of fault condition has been triggered, making fault diagnosis straightforward without the need for external test equipment.\u003c\/p\u003e","brand":"MB Quart","offers":[{"title":"Default Title","offer_id":44339546914909,"sku":"MBQQA19006DSP","price":1199.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0640\/9528\/9437\/files\/MBQ-QA1-900.6DSP-11.jpg?v=1775437643","url":"https:\/\/frankiesautoelectrics.com.au\/products\/mb-quart-mbq-qa1-900-6dsp-q-series-900w-6-channel-dsp-amplifier","provider":"Frankies Auto Electrics","version":"1.0","type":"link"}