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70 watt x 4 Reference Amplifier
70 watt x 4 Reference Amplifier
70 watt x 4 Reference Amplifier
70 watt x 4 Reference Amplifier
70 watt x 4 Reference Amplifier
70 watt x 4 Reference Amplifier
70 watt x 4 Reference Amplifier
70 watt x 4 Reference Amplifier
70 watt x 4 Reference Amplifier
70 watt x 4 Reference Amplifier
70 watt x 4 Reference Amplifier
70 watt x 4 Reference Amplifier
SKU: MBQ-RA1-280.4 Category: Reference Series Amplifiers

$449.00

70 x 4 RMS POWER @ 4 OHMS

Colour

Black

Warranty

2 Years

Compatible Vehicles

Universal

Amp Class

Class SQ (Class D)

Amp Total Channels

4

Amp Max Power (watts)

280

Amp Power @ 1 Ohm (ch x watts)

Amp Power @ 2 Ohm (ch x watts)

4 x 70

Amp Power @ 4 Ohm (ch x watts)

4 x 50

Amp Mono Bridged @ 4 Ohms (ch x watts)

Amp Crossover

Electronic

Amp Variable High Pass Crossover 12dB per Octave

CH1 & CH2: Switched Full/HPF/LPF 50Hz-250Hz, CH3 & CH4: Switched Full/HPF/LPF 50Hz-250Hz

Amp Variable Low Pass Crossover 12dB per Octave

CH1 & CH2: Switched Full/HPF/LPF 50Hz-250Hz, CH3 & CH4: Switched Full/HPF/LPF 50Hz-250Hz

Amp Speaker Terminal Wire Gauge

12 AWG

Amp Fusing

40A External

Low Noise Preamplifier Circuit

Q-Stasis Pre Amplifier Stage: Maximum low voltage signal from the source unit comes into the amplifier circuit with minimal distortion.

RCA Inputs

Nickel-Plated: High temperature impact resistant with hex screw terminals that allow for secure connections and is erosion resistant.

High Level Inputs

See Auto-Sense Feature.

Operation Mode

2 / 4 Channel

Crossover Type

Variable electronic crossovers allow for complete control of the sound.

Electronic Equalizer

Control of amplifier output with on-board electronic crossover to tailor specific frequencies to speakers and subwoofers. Check specifications for specific frequencies for this amplifier.

Class / Topology

Class SQ: Multi-channel amplifiers utilize the unique MB Quart Class SQ topology. Matched with Q-Stasis the sonic accuracy and clarity exceeds standard Class D amplifiers.

Output Device Technology

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.

Heat Sink

Aluminum: Quickly dissipates heat to allow the amplifier to run lower impedance for longer duration.

Power Supply

Rugged MOSFET Pulse Width Modulation power supply: Allows amplifier to produce efficient power without taxing the vehicle electrical system.

Output Connections

Heavy duty connections allow for secure electrical signal to pass into wiring and resist erosion which will add longevity to the amplifier.

Connection Type

Secure connection for all power, ground and speaker connections.

LED System Protection Circuitry Diagnostics

Bass Remote Included

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 RCA inputs, so an amplifier remote turn on wire is not needed to turn on the amplifier. This feature can also be turned off.

Supporting Document

Download