ZA2 Amplifier

Audiophile in the Car

The engineers here at MB Quart designed the ZA2 line of amplifiers for one reason. "To deliver the best sounding amplifier available for a critical listening audio system."


But, they did not stop there, because we use the gear in our cars too, we also want to feel that beat, right?


With a mix of sound quality technologies, MB Quart amplifiers are about making music, not just sound pressure levels. The ZA2 amplifiers feature the unique Q-Stasis pre-amplifier circuitry to keep incoming noise from source units at nearly immeasurable levels and Class SQ designs with FLUID-FET output devices to mimic the sound quality of the highest end home and recording studio amplifiers. There is no doubt that these amplifiers have the high end sound and deep seated power to exceed your expectations.


The ZA2 line is available in 2 and 4 channel full range versions, plus a unique 5 channel that delivers a 5th channel that is 1 ohm stable and lastly a dedicated subwoofer amplifier that delivers 1000 watts at 1 ohm. Here is a quick view of some of that is happening in the ZA2 amplifier


On Board Equalization
The ZA2 Series of amplifiers have built in equalization to fine tune the system with Low Pass, High Pass and Level Control. Take a close look at the 5 channel controls and check out how much equalization control you have over frequency and gain to all five channels. It is a pretty amazing amplifier.


Class SQ
Multi-channel ZA2 amplifiers utilize the unique MB Quart Class SQ topology. Matched with Q-Stasis the sonic accuracy and clarity exceeds standard Class A/B amplifiers.

The highly engineered Q-Stasis pre-amplifier stage reduces incoming noise from source units dramatically improving sound quality.
Class Q1 Mono
MB Quart’s Class Q1 offers the efficiency of today’s D-Class with increased engineering to focus on sound quality from the power supply through the output devices, the 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.

All MB Quart ZA2 amplifiers feature:

  • High-end mobile audio amplifiers with striking design
  • Q-Stasis Pre-Amplifier Input Section
  • Class SQ Technology in 2, 4 and 5 channel amplifiers
  • Class Q1 Technology in Mono and 5th channel amplifier
  • FLUID-FET hand selected insulated MOSFET output devices
  • Focused mass heat sink designs
  • Bass Remote Included on mono and 5 channel amplifiers

ZA2- 1500.5 Amplifier

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ZA2- 1500.5

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ZA2- 1500.5 Amplifier

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Part#: ZA2- 1500.5


1500 watt, four channel car audio amplifier



MB Quart ZA2 1500 watt five channel. Class SQ car amplifier for a full system solution with one amplifier. The Mono channel is 1-Ohm stable and will deliver 1000 watts of peak power.

Category: ZA2 Amplifier
SKU: 806576227076
Part #: ZA2- 1500.5

  • Class
    Class Q1 (Class D)
  • Variable Voltage
    6.0V - 0.2V
  • Signal to Noise
  • Frequency Response
  • Crossover Type
    Variable Electronic
  • Crossover Frequency Range:
    CH1 & CH2:

    Switch LPF - FULL - HPF
    40Hz - 4kHz
  • Crossover Frequency Range:
    CH3 & CH4:

    Switch LPF - FULL - HPF
    40Hz - 4kHz
  • Crossover Frequency Range:

    45Hz - 450Hz
  • THD Percent
  • Bass Boost
  • Phase Shift
    Yes: 0 - 180 degrees
  • Subsonic Filter
  • Power Output @ 1 Ohm:
    1 x 1000W : Channel 5 ONLY
  • Power Output @ 2 Ohms:
    4 x 100W + 1 x 750W
  • Power Output @ 4 Ohms
    4 x 60W + 1 x 350W
  • Mono Bridged @ 4 Ohms
    2 x 300W + 1 x 500 Watts
  • Total Channels
  • Audio Inputs:
    1 Pair RCA Jacks
  • Audio Outputs:
    1 Pair RCA Jacks
  • Power Terminal:

    2 ga
  • Speaker Terminal Wire Gauge
    10 ga
  • Fusing
    External 1 x 150A
  • Dimensions
    23.38 X 10.63 X 3.25 in
    59 x 26.6 x 8.2 cm
  • Weight
    13 lbs (5.8 kg)

Features & Benefits
  • Pre-Amp Circuitry: Q-Stasis Pre Amplifier Stage
    Maximum low voltage signal from the source unit comes into the amplifier circuit with minimal distortion
  • Inputs: Nickel Plated
    High temperature impact resistant with hex screw terminals that allow for secure connections and is erosion resistant
  • Operation Mode: 5 channel and bridged mono operation
    Flexible installation allows this amplifier to run in five channel or bridged mono mode.
  • Crossover / Signal Shaping: Switched High and Low Pass Filters
    Variable LPF for 5th Channel

    With adjustable frequency choices between high frequency speakers and low frequency drivers can be fine tuned for a perfectly balance audio system for all passengers, regardless of the placement in the vehicle.
    The 5th channel, designed for the subwoofer system utilizes a variable frequency adjustment, allowing the perfect balance of the full system, all from one amplifier.
  • Class / Topology: Class SQ & Class Q1
    (Class A/B and Class D)

    The perfect hybrid of power and technology. Four channels of Class SQ circuitry to drive the high end speakers. Then a 5th channel of Class Q1 that is 1 ohm stable to drive the subwoofers of a system.
  • Output Devices Technology: FLUID-FETS
    Uniquely selected MOSFET devices, designed specifically to augment the Class SQ and Class Q1 circuitry of all MB Quart amplifier designs.
  • Heat Sink: Focused mass aluminum
    Unique low profile heavy duty aluminum heat-sink to dissipate heat
  • Power Supply: High frequency power supply design
    Maximum efficiency power supply to deliver maximum power with minimal impact on the vehicles electrical system
  • Bass Remote: Included
    Wired Bass Remote allows adjustments to bass frequencies to be made from the control mounted anywhere in the vehicle.
  • Output Connections: Nickel-Plated
    Nickel Plated Brass Connection with Hex Set Screw terminals allow for secure connection and resist erosion
  • Connections Type: Molded / Angled
    Secure connection for all system wires. Angled for ease of access for installation
  • Diagnostics: Three-stage protection circuits
    Monitor thermal, overload, DC, and speaker short protection with lighted indicators on the amplifier end panel
  • Illumination: YES
    The MB Quart - Red Chiclet in the logo lights up to easily identify your amplifier as a top of the line, advanced technology choice

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