MB QUART Formula 900 Watt Amplifier FA1-9005

MB Quart

MB QUART Formula 900 Watt Amplifier (FA1-900.5)

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  • MB QUART Formula 900 Watt Amplifier (FA1-900.5)
  • MB QUART Formula 900 Watt Amplifier (FA1-900.5)
  • MB QUART Formula 900 Watt Amplifier (FA1-900.5)
  • MB QUART Formula 900 Watt Amplifier (FA1-900.5)
  • MB QUART Formula 900 Watt Amplifier (FA1-900.5)
Free Standard Delivery
FREE Standard Delivery
30-Day Easy Returns
30-Day Easy Returns
Secure Ordering
Secure Ordering
Size Chart


Features of MB QUART Formula 900 Watt Amplifier FA1-9005

  • Q-Stasis Pre Amplifier Stage: Maximum low voltage signal from the source unit comes into the amplifier circuit with minimal distortion
  • Nickel Plated: High temperature impact resistant with hex screw terminals that allow for secure connections and is erosion resistant
  • The DC SIGNAL SENSE switch will allow the amp to turn on when a signal is received on the RCA inputs, so an amplifier remote turn on wire is not needed to turn on the amplifier. This feature can also be turned off
  • Variable electronic crossovers allow for complete control of the sound
  • Control of amplifier output with on-board electronic crossover to tailor specific frequencies to speakers and subwoofers
  • Innovative use of Class SQ (Class A/B) for full range and a Class Q1 (Class-D) amplifier to drive the subwoofer frequencies
  • FLUID-FETS: MB Quart output devices, FLUID-FETS are painstakingly selected for their ability to efficiently produce power and mimic the sound quality of the highest end home amplifiers
  • Heavy duty heat-sink efficiently moves heat from the MOSFET where it can be cooled
  • Rugged MOSFET Pulse Width Modulation power supply: Allows amplifier to product efficient power without taxing the vehicle electrical system

Product Info for MB QUART Formula 900 Watt Amplifier FA1-9005

The MB QUART Formula 900 Watt Amplifier features innovative sound quality and power technology to run four full range channel and a subwoofer channel. The FA1-900.5 is a 900 watt 1 ohm stable (channel 5 only) car audio amplifier. Formula amplifiers feature DC Sensing to allow any amplifier to be easy integrated into an OEM system by simply adapting a RCA cable from the source unit. Bass remote is included.

GritrOutdoors is an authorized MB Quart dealer

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Size Chart/Specs

Weight, lbs 10.3
Type Amplifier
Series Formula
Category Mobile
Amp Class Class SQ + Class Q1 Mono (Class A/B + Class D)
Amp Total Channels 5
Amp Max Power, watts 900
Amp Power @ 1 Ohms, ch x watts 1 x 500 (Channel 5 only)
Amp Power @ 2 Ohms, ch x watts 4 x 100 + 1 x 350
Amp Power @ 4 Ohms, ch x watts 4 x 60 + 1 x 250
Amp Crossover Electronic
Amp Variable High Pass Crossover 12dB per Octave CH1 & CH2: Switched Full/HPF 50Hz-500Hz,
CH3 & CH4: Switched Full/HPF 50Hz-250Hz
Amp Variable Low Pass Crossover 12dB per Octave CH5 (Sub): 50Hz-250Hz
Amp Bass Boost 0-12dB
Amp Subsonic Filter 10Hz-40Hz
Amp Variable Voltage 0.02-9V
Amp Signal to Noise > 93dB
Amp Frequency Response 10Hz-45KHz
Amp Total Harmonic Distortion, THD < 0.5%
Amp Speaker Level Audio Inputs RCA Jack
Amp Power Terminal 12v/GND 4 AWG
Amp Speaker Terminal Wire Gauge 12 AWG
Amp Fusing 40A x 2
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Additional Information

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