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Memphis Audio 16-MXA4.480 4-channel marine/powersports amplifier — 80 watts RMS x 4 at 4 ohms

Item # 953MXA4480

Memphis Audio's MXA4.480 4-channel amplifier will really upgrade the performance of your marine or powersports...

Memphis Audio's MXA4.480 4-channel amplifier will really upgrade the performance of your marine or powersports...

Item # 953MXA4480

Shop all Memphis Audio Marine Amplifiers

About the Memphis Audio 16-MXA4.480

Jon Paul

Step up to big-time sound

Memphis Audio's MXA4.480 4-channel amplifier will really upgrade the performance of your marine or powersports audio system. With 80 watts RMS per channel driving your speakers, you'll be able to hear your music over the wind and the roar with no trouble at all.

Step up to big-time sound

Memphis Audio's MXA4.480 4-channel amplifier will really upgrade the performance of your marine or powersports audio system. With 80 watts RMS per channel driving your speakers, you'll be able to hear your music over the wind and the roar with no trouble at all.

Compact size

Despite the big performance, this compact amp will fit into a storage compartment on a boat, motorcycle, or ATV, and run cool no matter how hard you push it. Installing a pair of subs? You can bridge this amp to 2-channel mode and send 240 watts to each subwoofer, or switch to 3-channel mode to drive a pair of speakers and your sub. With variable high-pass and low-pass filters, plus bass boost, you can adjust the output to suit your tastes.

Tough enough for rough conditions

Life on the water or the trail can be tough on audio gear, so Memphis Audio designed this Class D amp to resist salt, spray, and punishing sunlight. No matter where your weekend travels take you, you can count on this rugged, reliable amp.

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Product highlights:

  • 4-channel marine/powersports amplifier
  • 80 watts RMS x 4 at 4 ohms (120 watts RMS x 4 at 2 ohms)
  • 240 watts x 2 bridged at 4 ohms
  • Class D amp technology
  • variable high- and low-pass filters
  • selectable bass boost (9 or 12 dB at 45 Hz)
  • 8-gauge wiring kit (sold separately) recommended
  • two sets of preamp inputs
  • fuse rating: 50 amps
  • frequency response: 20-20,000 Hz
  • dimensions: 9-1/8"W x 1-15/16"H x 6-13/16"D
  • warranty: 2 years
  • MFR # 16-MXA4.480

What's in the box:

  • 4-Channel amplifier
  • 4mm Allen wrench
  • 2mm Allen wrench
  • 4 Self-tapping screws (M4 x 17mm)
  • 4 Flat washers
  • 4 Split lock washers
  • Operating Manual
  • Certified Power Output card

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Features

Overview: The Memphis Xtreme Audio MXA4.480 is a full range Class D MXA-series 4-channel amplifier for your vehicle, ATV, or boat. The amp features coated circuit boards, making it water-resistant and UV-resistant in extreme environments.

Output Power: The MXA4.480 outputs 80 watts RMS x 4 channels at 4Ω, 120 watts RMS x 4 channels at 2Ω, and 240 watts RMS x 2 channels at 4Ω bridged.

Controls: The amplifier features a removable clear plastic cover on one end to protect the controls from the elements. The rotary controls can be adjusted with a flat-head screwdriver (not included). The amp has independent controls for the front (Ch 1&2) and rear (Ch 3&4) channels:

  • Gain: The Gain (or Input Sensitivity) Control helps you match the amplifier to the output of the source unit. This adjusts the amount of signal required to drive the amplifier to full output. The amp will accept low-level signals between 0.2V and 5.0V.
  • Crossovers: Each set of channels has a switch that lets you configure the crossover for low-pass, high-pass, or full range. There are also separate rotary controls for LPF (low pass filter) and HPF (high pass filter) to set the cutoff frequency. If LPF is selected, you can set the cutoff frequency between 30 and 150 Hz. If HPF is selected, you can set the cutoff frequency between 50 and 180 Hz. If FULL is selected, the crossover is disabled, allowing a full-range signal to be output for that pair of channels.
  • Bass Boost: Both pairs of channels have a 3-way switch that lets you add a bass boost at 45 Hz. You can set the bass boost to 0dB, 9dB, or 12dB.

Connections: The MXA4.480 has the following connections:

  • Inputs: The amp has two pairs of RCA jacks for connecting the source unit via RCA cables.
  • Power/Ground: Set screw terminals are provided for connecting power (up to 4 gauge), ground (up to 4 gauge), and remote turn-on lead (10 gauge). Based on the 50A fuse rating, an 8-gauge amplifier wiring kit is recommended. A 50A fuse should be placed on the power wire within 18" of the battery. The terminals can be tightened/loosened with the supplied 4mm and 2mm Allen wrenches.
  • Speaker Output: Set screw terminals are provided for connecting two pairs of speakers to the amplifier. The terminals will accept up to 10 gauge wire.

Mounting: The MXA4.480 can be mounted in the hatch or trunk, or under the seat of a vehicle. Under the seat of a boat or ATV is also acceptable. It should be mounted in a location that avoids direct contact with water. The amp can be installed horizontally or vertically.

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