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PRV Audio 8MR400B-4 SLIM 8" Midrange Speaker 4 Ohm

PRV AudioPart # 294-3141
Model: 8MR400B-4 SLIM
Continuing PRV Audio's "pro audio on wheels" concept, the 8MR400B-4 SLIM 8" midrange is built to deliver the same performance as a professional loudspeaker. Featuring an aluminum phase plug for improved high frequency response, this driver is able to give high levels of output in installation locations where depth is at a minimum.

Key Features

  • Less than 2-3/4" mounting depth for installation in tight locations
  • 93.5 dB efficient and 200 watt RMS power handling for incredible output capability
  • Wide frequency response from 95 to 7,500 Hz for smooth midrange output
  • Aluminum phase plug improved high frequency response on and off-axis
  • Powerful motor and low moving mass to provide incredible dynamics and detail
Your Price: $47.91
MSRP: $59.89
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Overview

PRV Audio 8MR400B-4 SLIM 8" Midrange Speaker 4 Ohm

The 8MR400B-4 SLIM 8" midrange speaker uses a "bullet" phase plug made from pure aluminum to lower inductance and act as a heat sink cooling system for the voice coil. Machined to perfection for even sound dissipation the phase plug also improves off-axis frequency response. Beyond good looks, this cone is extremely light, providing excellent damping to keep an incredibly natural yet accurate sound with incredible efficiency.

An M-roll cloth surround, combined with an optimized fiber pressed paper cone, ensure the speaker’s frequency response is smooth and extends to high range making an easy transition to a super tweeter. The suspension design of the 8MR400-4 SLIM features a single layer spider – which connects to the coil former with premium stitched lead wires. The cone is driven by a copper-clad aluminum wire voice coil providing high efficiency and excellent power handling.

This driver is constructed of high-performance characteristics and high-quality components to provide exceptional clarity, detail, and dynamic sound. You can expect outstanding sound stage quality and realistic sound reproduction for a great value. This is the new standard of value in high-performance bullet speakers.

Built to perform and able to handle 400 watts of continuous power, this midrange is the perfect option to replace those old 2-way or 3-way coaxial speakers. With less than 2-3/4" mounting depth, this driver is perfect installations where depth is at a minimum such as car doors and dash locations. Engineered and designed to easily transform a stock system into one that can deliver concert levels. The 8MR4000-4 SLIM is ideal for audiophiles seeking tremendous output without radical modifications.

Product Details

BrandPRV Audio
Model8MR400B-4 SLIM
Part Number294-3141
UPC619620087607
Unit of MeasureEach
Weight5.4

Product Specifications

Nominal Diameter8"
Bolt Circle Diameter8
Power Handling (RMS)200 Watts
Power Handling (MAX)400 Watts
Impedance4Ω
Frequency Response95 to 7,500Hz
Sensitivity93.5dB 2.83V/1m
Voice Coil Diameter1.5"

Thiele-Small Parameters

Resonant Frequency (Fs)92.9Hz
DC Resistance (Re)3.8Ω
Voice Coil Inductance (Le)0.167mH
Mechanical Q (Qms)25.53
Electromagnetic Q (Qes)0.76
Total Q (Qts)0.74
Compliance Equivalent Volume (Vas)0.55ft³
Mechanical Compliance of Suspension (Cms)0.213mm/N
BL Product (BL)6.34T·m
Diaphragm Mass Inc. Airload (Mms)13.78g
Maximum Linear Excursion (Xmax)3.25mm
Surface Area of Cone (Sd)230cm²

Materials of Construction

Cone MaterialTreated Paper
Voice Coil Wire MaterialCCA
Voice Coil FormerKapton® / Polyimide
Basket / Frame MaterialSteel
Magnet MaterialFerrite

Mounting Information

Overall Outside Diameter8.23"
Baffle Cutout Diameter7.13"
Depth2.95"
# Mounting Holes4

Parts Express Staff Recommended Enclosure Volume

Sealed Volume0.63ft³
Sealed F3107.2Hz
Vented Volume1ft³
Vented F374.4Hz

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