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PRV Audio 8MR400-NDY 8" Neodymium Midrange Speaker 8 Ohm

Brand:|Model: 8MR400-NDY|Part # 294-2713
A lightweight neodymium motor, extreme power handling, and smooth midrange are the hallmarks of PRV Audio's 8MB400-NDY. A great choice for professional 3-way cabinets, floor and studio monitors, even for use in high SPL mobile audio systems.
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Part # 294-2713
  • Lightweight version of the popular 8MB500-NDY specifically designed for midrange
  • Smooth frequency response
  • Strong, yet lightweight stamped steel frame
  • Designed for small sealed cabinets
  • 200W RMS power handling

Product Details

PRV Audio 8MR400-NDY 8" Neodymium Midrange Speaker 8 Ohm

PRV Audio's 8MB400-NDY neodymium 8" midrange woofer is a lighter version of the popular 8MB500-NDY and offers high output, with a smooth midrange, and response up to 5,000 Hz. The 8MB400-NDY  is designed for midrange use in three-way speakers. Alternatively, you can use it in small sealed cabinets as a woofer in floor and studio monitors.

A light paper cone is mated to a 1.5" voice coil for great sensitivity and high power handling. A durable spider suspension, woven cloth surround, and stamped steel frame are combined for extreme durability. High output SPL car audio enthusiasts gravitate towards this driver for use in their systems when looking for a lightweight midrange that can sustain long hours of extreme operation.

Product Specifications
  • Nominal Diameter8"
  • Power Handling (RMS)200 Watts
  • Power Handling (max)400 Watts
  • Impedance8 ohms
  • Frequency Response115 to 8,500 Hz
  • Sensitivity94 dB 2.83V/1m
  • Voice Coil Diameter1.5"
Thiele-Small Parameters
  • Resonant Frequency (Fs)111.3 Hz
  • DC Resistance (Re)5.7 ohms
  • Voice Coil Inductance (Le)0.37 mH
  • Mechanical Q (Qms)7.75
  • Electromagnetic Q (Qes)1.17
  • Total Q (Qts)1.01
  • Compliance Equivalent Volume (Vas)0.23 ft.³
  • Mechanical Compliance of Suspension (Cms)0.100 mm/N
  • BL Product (BL)8.32 Tm
  • Diaphragm Mass Inc. Airload (Mms)20.39g
  • Maximum Linear Excursion (Xmax)3.5 mm
  • Surface Area of Cone (Sd)214 cm²
Materials of Construction
  • Cone MaterialPaper
  • Surround MaterialCloth
  • Voice Coil Wire MaterialCopper
  • Voice Coil FormerKapton® / Polyimide
  • Basket / Frame MaterialSteel
  • Magnet MaterialNeodymium
Mounting Information
  • Overall Outside Diameter8.12"
  • Baffle Cutout Diameter7.20"
  • Depth3.25"
  • # Mounting Holes4
Optimum Cabinet Size (determined using BassBox 6 Pro High Fidelity suggestion)
  • Sealed Volume0.35 ft.³
  • Sealed F3100 Hz
  • Vented Volume1.17 ft.³
  • Vented F361 Hz
PRV Audio 8MR400-NDY 8" Neodymium Midrange Speaker 8 Ohm
  • BrandPRV Audio
  • Model8MR400-NDY
  • Part Number294-2713
  • UPC799928733724
  • Product CategoryMidrange / Midbass Drivers & Full-Range Speakers
  • Unit of MeasureEA
  • Product Rating
    (2 Reviews)
  • Weight1.78 lbs.
  • California Prop 65

    Warning: California residents only. Please note per Proposition 65 that this product may contain chemicals known to the State of California to cause cancer and birth defects or other reproductive harm.

View similar products to the PRV Audio 8MR400-NDY 8" Neodymium Midrange Speaker 8 Ohm
in the Midrange / Midbass Drivers & Full-Range Speakers product category.


PRV Audio 8MR400-NDY 8" Neodymium Midrange Speaker 8 Ohm
PRV Audio 8MR400-NDY 8" Neodymium Midrange Speaker 8 Ohm is rated 5.0 out of 5 by 2.
Rated 5 out of 5 by from AFTER 6 MONTHS OF USAGE A FIRST HAND REVIEWOk, the drivers were acquired sometime in August or September and a pair of custom 3way mains in a rather large 4.5 ft3 enclosure with the 15w700's and the D230Ti's, were created. NO MEASUREMENTS WERE TAKING BEFORE HANGING THE ENCLOSURES. I will say that the drivers sound rather well together. Obviously, due to sensitivity the horns needed to be padded down but after some extensive play time everything seemed to mellow down and blend together rather nicely. The midrange is perfect for both live voice and instrument play. Quotes from a few bands/musicians, "The bass sounds clean and undistorted", "Keys sound pure", "These mains fill the area rather nicely and aren't over powering". I can honestly say that the 8MR400's sound rather natural without much distortion when used within its bandpass. I currently have them crossed at 800-4500.
Date published: 2014-04-15
Rated 5 out of 5 by from Great speaker for a dual 8" line array project!!Using these speakers, I designed a dual 8" 2 way line array speaker. It turned out great. I was very pleased with the way the whole cabinet sounded including the low end. The Fs of this speaker is 108 or so, but I plan to use these with 15" subs. It still works great by itself. Just the speakers, no high end driver, sounded very good as a bass cab.I would recommend these speakers to anyone looking for quality and value.
Date published: 2013-11-04
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Product Q&A

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PRV Audio 8MR400-NDY 8" Neodymium Midrange Speaker 8 Ohm

Would this driver be suitable for an open baffle design?

Asked by: Pete L
Answered by: MattP
Date published: 2015-05-26
  • 2016-02-07T07:19CST
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