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Memphis Audio PRX824 Power Reference Series 8" dual voice coil component subwoofer — selectable 2- or 4-ohm impedance

Item # 953PRX824

The Power Reference Series subs combine old-school know-how and modern materials so you get the best of both worlds.

The Power Reference Series subs combine old-school know-how and modern materials so you get the best of both worlds.

California customers:
Please click here for your Proposition 65 warning.

1 question - 1 answer

Item # 953PRX824

Low stock
$119.95 -$10.00 Price break
$109.95 each

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About the Memphis Audio PRX824

Bob Bihlmayer

Rolling thunder

Memphis Audio built their Power Reference Series subwoofers to bring strong low-frequency punch into your vehicle. The PRX824 8" subwoofer delivers big bass and high output, with a heavy-duty suspension that allows this sub to handle up to 200 watts RMS.

Rolling thunder

Memphis Audio built their Power Reference Series subwoofers to bring strong low-frequency punch into your vehicle. The PRX824 8" subwoofer delivers big bass and high output, with a heavy-duty suspension that allows this sub to handle up to 200 watts RMS.

Easy to set up, easy to love

This Power Reference Series subwoofer is built to dish it out and take it. Its treated paper cone and double-stitched butyl rubber surround pump out the lows with toughness and precision. Improvements to the coil and suspension design give you even more of that great Memphis sound. Selectable Impedance Technology allows you to select 2- or 4-ohm impedance using the included color-coded jumpers, making adjustments dead easy and giving you a wide range of installation and system options.

Do you hear a rumble in the distance? That's the bass you've been waiting for on its way to you from Memphis Audio.

Subwoofer Wiring Diagrams

To see sample wiring diagrams for all common subwoofer/amplifier combinations, check out this informative article.

READ LESS

Product highlights:

  • 8" component subwoofer
  • selectable 2- or 4-ohm impedance
  • polypropylene cone with double-stitched butyl rubber surround
  • steel basket
  • power handling: 200 watts RMS (400 watts peak)
  • sensitivity: 84 dB
  • top-mount depth: 3.725"
  • cutout diameter: 6.95"
  • grille not included
  • warranty: 1 year
  • MFR # PRX824

What's in the box:

  • One 8" Subwoofer
  • Rubber trim ring/gasket (installed)
  • One 4-ohm jumper wire (installed)
  • Two 2-ohm jumper wires
  • Specification sheet
  • Warranty information

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More details on the Memphis Audio PRX824

Pat M.

Product Research

Features

Terminals: One pair of spring-post input terminals offers easy connection of single banana plugs, pin connectors, or bare wire up to 10-gauge. The terminals do not work with dual banana plugs.

Selectable Impedance: On the opposite side of the basket from the input terminals, there are four "shorting" terminals. Depending on how the included jumper wires are connected to these shorting terminals, the input terminals present either a 2Ω or 4Ω load. The power handling is the same for either setting: 200 watts RMS/400 watts peak.

Rubber Magnet Boot: A black rubber boot covers the outside edge of the magnet structure to improve the cosmetics of the woofer and protect the magnet during installation. The boot is removable if needed for tight installations. (No change in depth, only magnet diameter.)

Sealed Enclosures: Sealed enclosures provide the most control over a woofer and provide accurate sonic reproduction, making them suitable to all types of music. Memphis Audio recommends a sealed enclosure of 0.45 ft³.

Vented Enclosures: Vented (or ported) enclosures typically provide better overall efficiency than sealed so they are suitable for use with smaller amplifiers, giving you more bass output from a given amount of power. Memphis Audio recommends a ported enclosure of 0.7 ft³ with a 2½" diameter x 9½" long port, yielding a tuning frequency of 43 Hz.

Thiele Small Parameters: Some specs change depending on the impedance:

Load Presented 2Ω 4Ω
DC Resistance (Revc) 1.8Ω 3.6Ω
Resonant Frequency (fs) 41 Hz 41 Hz
Mechanical Q (Qms) 5.45 5.55
Electrical Q (Qes) 0.76 0.67
Total Q (Qts) 0.69 0.63
Sensitivity 84 dB 84 dB
Xmax 0.266" (6.76mm) 0.266" (6.76mm)
Vas 13.37 liters 13.48 liters
Moving Mass (Mms) 71.8 g 71.8 g
Suspension Compliance (Cms) 0.208 mmN 0.210 mmN
Effective Piston Area (Sd) 213.82 cm² 213.82 cm²
Motor Strength (Bl) 6.68 Tm 9.95 Tm

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Customer Q&A

1 question already asked

Q
Can I drop in the factory rear sub and connect with out an amp?
kristofer  Oct 13, 2022
1 answer
A
Potentially depending on your specific vehicle Kristofer. You can use the handy vehicle guide in the link below to see if this is a potential fit in your factory subwoofer location. A lot of times customers will have to modify the enclosure, drill new mount holes, or modify the factory grill or cover for aftermarket subs to fit. These can work well on the factory amp, again depending on your car's specifics. If you'd rather speaker to a live advisor rather than use the website you can always give us a call at 1-800-316-3061! https://www.crutchfield.com/m_399/Car-Speakers.html
bo  Oct 13, 2022 (Staff)

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