Continuing PRV Audio's "pro audio on wheels" concept, the 8MR500-4 BULLET
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 from your custom
door or rear deck.
Highlights
Extremely wide frequency response from 95 to 20,000 Hz for smooth midrange
output
95 dB efficient and 250 watt RMS power handling for incredible output
capability
Aluminum phase plug improved high frequency response on and off-axis
Powerful motor and low moving mass to provide incredible dynamics and
detail
PRV Audio 8MR500-4 BULLET 8" Midrange Speaker 4 Ohm
The 8MR400-4 BULLET 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.
A triple 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 8MR500-4 BULLET 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 500 watts of continuous power, this
midrange is the perfect option to replace those old 2-way or 3-way coaxial
speakers. Engineered and designed to easily transform a stock system into one
that can deliver concert levels. The 8MR500-4 BULLET is ideal for audiophiles
seeking tremendous output without radical modifications.
Product Specifications
Nominal Diameter - 8"
Power Handling (RMS) - 250 Watts
Power Handling (max) - 500 Watts
Impedance - 4 ohms
Frequency Response - 95 to 20,000 Hz
Sensitivity - 95 dB 2.83V/1m
Voice Coil Diameter - 1.5"
Thiele-Small Parameters
Resonant Frequency (Fs) - 78.2 Hz
DC Resistance (Re) - 3.5 ohms
Voice Coil Inductance (Le) - 0.132 mH
Mechanical Q (Qms) - 20.80
Electromagnetic Q (Qes) - 0.48
Total Q (Qts) - 0.46
Compliance Equivalent Volume (Vas) - 0.73 ft.³
Mechanical Compliance of Suspension (Cms) - 0.360 mm/N
BL Product (BL) - 6.45 Tm
Diaphragm Mass Inc. Airload (Mms) - 11.5g
Moving Mass Of Diaphragm (Mmd) - 9.39
Maximum Linear Excursion (Xmax) - 3.25 mm
Surface Area of Cone (Sd) - 241 cm²
Materials of Construction
Cone Material - Treated Paper
Voice Coil Wire Material - CCA
Voice Coil Former - Kapton® / Polyimide
Basket / Frame Material - Steel
Magnet Material - Ferrite
Mounting Information
Overall Outside Diameter - 8.27"
Baffle Cutout Diameter - 7.32"
Depth - 3.46"
Bolt Circle Diameter - 8"
# Mounting Holes - 4