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Description

Memphis PRX800.5V2

The PRX800.5V2 is a compact 5‑channel Class‑D amplifier from Memphis Audio’s Power Reference (PR) series. It is designed to power a full car audio system  four full-range speakers plus a subwoofer  in a space-efficient chassis. The top-mounted controls are hidden under an acrylic panel with a blue‑LED cover, allowing easy tuning even in tight installation areas. It also features a signal-sensing turn-on, extruded aluminum heatsink, adjustable 12 dB/octave Butterworth crossovers, variable EQ boost, and a subsonic filter for clean, controlled bass.


Specifications

Specification Details
RMS Power @ 4Ω 75 × 4 + 250
RMS Power @ 2Ω 100 × 4 + 400
Bridged / Mono Power @ 4Ω 200 × 2 + 400 × 1 @ 2Ω
THD% @ 4Ω <1%
Frequency Response 10Hz – 21kHz
Dimensions (L × W × H) 10.1 × 5.7 × 2.16
Recommended Amp Kit 4GKIT

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Questions and Answers

Q1: What is the power output specification?
A1: 75 W × 4 + 250 W × 1 @ 4 Ω; 100 W × 4 + 400 W × 1 @ 2 Ω.
Q2: Does it support bridging?
A2: Yes, it can bridge to 200 W × 2 (4 Ω) + 400 W × 1 (at 2 Ω).
Q3: What tuning options and filters does it provide?
A3: It has variable 12 dB/oct Butterworth crossovers (high-pass for full-range, low-pass for sub), a subsonic filter (10–50 Hz), and variable EQ boost (0–12 dB).
Q4: Is there a remote bass level control?
A4: Yes, it includes a wired remote level (bass) knob.
Q5: What are the physical dimensions and frequency response?
A5: Dimensions are ~10.13″ × 5.7″ × 2.16″. It has a frequency response of 10 Hz–21 kHz.

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