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Memphis Audio

Memphis Audio PRX4001V2Power Reference Amplifiers

4.4151 reviewsSee all reviews

The Memphis Audio PRX400.1V2 delivers noticeably clearer mids and highs and a big improvement over many factory dash/tweeter units. Good value for a small 2‑way that pairs well with crossovers and modest amplification, though many installers report fitment and high‑volume limitations.

Buyer confidence

84%

Highlights

  • Compact space saving design
  • Blue LED top Cover
  • Blue LED ground lighting
  • Extruded aluminum heatsink

Key specs

Full specs
RMS Power 4Ω
230W x 1
RMS Power 2Ω
400W x 1
RMS Power 1Ω
600W x 1
THD % 4Ω
<1%
Frequency Response
10Hz-250Hz
Dimensions (in)
6.6 X 5.7 X 2.16
Recommended Amp Kit
8GKIT

Key specs

Full specs
RMS Power 4Ω
230W x 1
RMS Power 2Ω
400W x 1
RMS Power 1Ω
600W x 1
THD % 4Ω
<1%

Highlights

Overview
  • Compact space saving design
  • Blue LED top Cover
  • Blue LED ground lighting

Review highlights

Based on customer reviews

Clear, punchy small 2‑way upgrade — but expect mounting tweaks

The Memphis Audio PRX400.1V2 delivers noticeably clearer mids and highs and a big improvement over many factory dash/tweeter units. Good value for a small 2‑way that pairs well with crossovers and modest amplification, though many installers report fitment and high‑volume limitations.

151 reviews4.4/5 averageUpdated Mar 15, 2026

What buyers praise

  • Marked improvement in vocal/mid clarity versus factory speakers
  • Crisp, clear highs and usable midrange from a compact 2‑way design

What to watch for

  • Often not plug‑and‑play — many reviewers had to modify mounting holes, brackets, or solder connectors to install
Overview
Power Reference amplifiers offer a perfect blend of space-saving design and robust performance. They have been redesigned with a smaller footprint compared to their predecessors while maintaining the impressive power ratings you expect from Power Reference. These amplifiers feature a sleek LED-accented acrylic top panel that conceals conveniently located top-mounted controls, allowing for easy adjustments even in tight spaces. Undermount LED accent lighting adds a personalized touch and a high end custom appearance. These amplifiers deliver precise sound control and unwavering reliability. The objective behind Power Reference was to preserve their exceptional performance while enhancing the amplifier’s versatility by reducing the overall footprint by up to 43% on specific models making this the most versatile and advanced Power Reference amplifier to date.
Highlights

Key features

  • Compact space saving design
  • Blue LED top Cover
  • Blue LED ground lighting
  • Extruded aluminum heatsink
  • 18dB/octave butterworth crossovers
  • Variable crossovers
  • Variable EQ boost 0-12dB
  • Variable subsonic filter
  • Selectable amp turn on
  • Top mount controls hidden under panel
Specs

Specifications

7
RMS Power 4Ω230W x 1
RMS Power 2Ω400W x 1
RMS Power 1Ω600W x 1
THD % 4Ω<1%
Frequency Response10Hz-250Hz
Dimensions (in)6.6 X 5.7 X 2.16
Recommended Amp Kit8GKIT
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