MB Quart MBQ-NA2-320.4 NA2 Powersports 4 Channel 320W Amplifier

Side by sides, bikes and boats have little space and plenty of vibration. The MB Quart MBQ-NA2-320.4 is a compact full range Class D 4 channel amplifier making 4 x 80W at 2 ohms or 4 x 40W at 4 ohms.

Quick disconnect wiring and RCA connections let you pull the amp out for winter storage or security.

Problems it solves

• No room for a full size amp. Class D topology makes the power from a small aluminium heat sink.
• Corroded RCA plugs. Inputs are nickel plated with hex screw terminals.
• Not knowing why the amp cut out. Three stage protection lights up for thermal, overload, DC and speaker short faults.

MBQ-NA2-320.4 specifications

• Class: full range Class D
• Channels: 4, or bridged
• Power: 4 x 80W at 2 ohm, 4 x 40W at 4 ohm, 320W max
• Crossover: switched full or high pass on channels 1 and 2 and 3 and 4, 12dB per octave
• Bass boost: 0 to 12dB at 45Hz
• Input sensitivity: 0.2 to 9V
• Inputs: 2 pairs RCA
• Colour: black

Fitment and compatibility

Suits powersports, UTV, motorcycle and boat audio systems.

What is in the box

Amplifier with quick disconnect wiring.

Install notes

Use the high pass switch on any channel driving small speakers.

Mount it out of direct spray with airflow around the heat sink.

Warranty

This comes with the manufacturer's warranty through the Australian distributor. See the manufacturer's terms for details, plus our guarantees under the Australian Consumer Law.

MBQ-NA2-320.4 FAQs

Can the NA2-320.4 run a subwoofer?

Yes, by bridging channels in mono mode.

What load gives the full 80W per channel?

2 ohms.

Can it take speaker level signal from an OEM unit?

The input accepts 0.2 to 9V through the RCA pairs.