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PRV Audio 8MB450-4 v2 8" Pro Audio Midbass Speaker 4 Ohm

PRV AudioPart # 294-3001
Model: 8MB450-4 v2

The 8MB450-4 v2 8" from PRV Audio is a pro audio midbass woofer that offers smooth lower response through a punchy midbass range and the frequency response that takes your applications smoothly through the 7,500 Hz range.

Key Features

  • Smooth vocal response with punchy mid‑bass impact
  • Handles 450 W RMS for reliable high-volume endurance
  • Copper‑clad aluminum voice coil reduces mass for better efficiency
  • Thick yet lightweight cone ensures accurate frequency response
  • Durable spider suspension and woven surround sustain long‑term operation
  • 93.5 dB sensitivity delivers loud output with modest amplifier power
Your Price: $34.91
MSRP: $43.64
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Overview

PRV Audio 8MB450-4 v2 8" Pro Audio Midbass Speaker 4 Ohm

PRV Audio 8MB450-4 v2 8" Pro Audio Midbass Speaker 4 Ohm

The 8MB450-4 v2, 8″ PRV Audio Pro Audio Midbass Woofer delivers smooth low-end response with a punchy midbass and extends cleanly up to 7,500 Hz. It is designed for loud, clear vocal performance in tight, compact spaces. The V2 features upgrades to the motor and basket design, now equipped with a copper-clad aluminum voice coil for reduced moving mass and improved efficiency.

  • Smooth vocal response with powerful midbass punch 
  • 450 Watts power handling for reliable performance at high volumes 
  • Ideal as a door speaker in car audio systems 
  • Also available in 8 Ohm version – 8MB450 v2 
  • 8″ car audio midbass speaker optimized for low frequencies

The 2″ voice coil, robust spider suspension, and woven surround, all housed in a sturdy steel basket, enable long hours of use without sacrificing speaker efficiency. A thick yet lightweight rigid cone delivers precise response and reliable power handling.

This midbass is perfect for applications where weight and space is limited, such as custom door panels, making this speaker a popular speaker choice among custom car audio builders.

Specifications

  • Nominal Diameter 8″ (203 mm) 
  • Nominal impedance 4 Ohm 
  • Nominal Power Handling 225 Watts 
  • Continuous Program Power (RMS) 450 Watts 
  • Max Peak Power 900 Watts 
  • Sensitivity 2.00V at 1m 93.5 dB 
  • Recommended Hi Pass Crossover** 120 Hz** 
    **For Full Power Handling **12db Per Octave Crossover 
  • Frequency Response at -10dB 75 – 7,500 Hz 
  • Voice Coil Diameter 2″ (50 mm) 
  • Voice Coil Wire CCAW 
  • Voice Coil Winding Depth 12.0 mm 
  • Former Material Kapton 
  • Magnetic Gap Depth 6.0 mm 
  • Frame Material: Stamped Steel
  • Overall Diameter: 8.27” (210 mm) 
  • Front Mount Baffle Cutout: 7.17” (182 mm) 
  • Mounting Depth: 3.37” (85 mm) 
  • Overall Depth: 3.62” (92 mm) 
  • Net Weight: 4.10 Lbs (1.86 kg)

*Nominal power handling is defined as the maximum RMS power that the speaker can handle in a 2-hour test with a pink noise with 6dB of crest factor and a bandpass filter with 12db/oct tuned in its usable frequency range.
**Continuous Program Power (RMS) is the maximum power that the speaker can handle considering a regular musical program using our recommended filters, this power can be used to define the optimum amplifier power to provide a clean signal without clipping or saturation.
***Max Peak Power is the maximum power operation for the speaker, this power is allowed just for a few fractions of a second, usually found just on the peaks of the music. Keeping this power for a little longer timer will damage the speaker.

Product Details

BrandPRV Audio
Model8MB450-4 v2
Part Number294-3001
UPC602938022293
Unit of MeasureEach
Weight4.55

Product Specifications

Nominal Diameter8"
Bolt Circle Diameter7.75
Power Handling (RMS)225 Watts
Power Handling (MAX)450 Watts
Impedance4Ω
Frequency Response75 to 7,500Hz
Sensitivity93.5dB 2.83V/1m
Voice Coil Diameter2"

Thiele-Small Parameters

Resonant Frequency (Fs)76.6Hz
DC Resistance (Re)3.6Ω
Voice Coil Inductance (Le)0.17mH
Mechanical Q (Qms)22.84
Electromagnetic Q (Qes)0.92
Total Q (Qts)0.88
Compliance Equivalent Volume (Vas)0.6ft³
Mechanical Compliance of Suspension (Cms)0.21mm/N
BL Product (BL)6.19T·m
Diaphragm Mass Inc. Airload (Mms)20.48g
Maximum Linear Excursion (Xmax)4.5mm
Surface Area of Cone (Sd)241cm²

Materials of Construction

Cone MaterialPaper
Surround MaterialCloth
Voice Coil Wire MaterialCCA
Voice Coil FormerKapton® / Polyimide
Basket / Frame MaterialSteel
Magnet MaterialFerrite

Mounting Information

Overall Outside Diameter8.27"
Baffle Cutout Diameter7.17"
Depth3.31"
# Mounting Holes4

Parts Express Staff Recommended Enclosure Volume

Sealed Volume0.5ft³
Sealed F386.4Hz
Vented Volume1ft³
Vented F357.9Hz

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