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Memphis Audio PRX603 Power Reference Series 6-1/2" 3-way car speakers

Item # 953PRX603

The time has come to take a stand against disappointing sound, and Memphis Audio's Power Reference Series PRX603...

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The time has come to take a stand against disappointing sound, and Memphis Audio's Power Reference Series PRX603...

Item # 953PRX603

Every order includes

  • Free lifetime tech support
  • 60-day price-drop protection
  • 60-day returns
In stock

Deeply discounted installation gear

$114.95 pair

Get questions answered fast & free

Expert help 400+ hours training Virginia-based

About the Memphis Audio PRX603

Alexander H.

Product highlights:

  • 3-way car speakers (pair)
  • 6-1/2" polypropylene woofer cone with polyurethane surround
  • PEI cone midrange driver and dome tweeter
  • handles up to 50 watts RMS (100 watts peak power)
  • frequency response: 100-20,000 Hz
  • sensitivity: 88 dB
  • top-mount depth: 2-1/4"
  • grilles included
  • warranty: 1 year
  • MFR # PRX603
  • Item # 953PRX603
  • California customers: Please click here for your Proposition 65 WARNING.

What's in the box:

Memphis Audio PRX603 owner's manual

If you need assistance accessing this owner's manual, please give us a call.
  • Two 3-way speakers
  • Two 12" Speaker leads (quick slides on one end and crimp connectors on the other)
  • 2 Grilles
  • Eight 1-3/8" Screws
  • 8 Speed clips
  • Template
  • Warranty information

More details on the Memphis Audio PRX603

Pat M.

Features & specs

General
Speaker Size 6 1/2
Driver Design 3-way
Woofer Design Cone
Woofer Material Polypropylene
Woofer Surround Polyurethane
Midrange Design Cone
Midrange Material PEI
Tweeter Design Dome
Tweeter Material PEI
Super Tweeter Design ---
Super Tweeter Material ---
Impedance (Ohms) 4
Weather-resistant No
Grilles Included Black, Steel mesh, Plastic frame
Parts Warranty 1 Year
Labor Warranty 1 Year
Specifications
Sensitivity (1W at 1 meter) 88
Sensitivity at 2.83 volts N/A
Frequency Response 100 - 20k Hz
Maximum RMS Wattage 50
Peak Power Handling (Watts) 100
Top-mount Depth (Inches) 2 1/4
Bottom-mount Depth (Inches) 2 11/16
Cutout Diameter or Length (inches) 4 7/8
Mounting Height (Inches) 0.772
Frame Width 6.239
Frame Length 6.239
The Memphis Audio PRX603 replaces these items:

Product Research

Features

Tweeter/Midrange: The structure housing the PEI (Poly-Ether-Imide) dome tweeter and PEI cone midrange swivels, so they can be aimed for optimum imaging. PEI is a polymer film that produces a wide soundstage for superior imaging.

Mounting: In addition to fitting standard 6-1/2 and 4-hole 6-1/2 applications, the PRX602 also has a standard 6-3/4 bolt pattern. However, if mounted in a 6-3/4 location the holes for the smaller pattern create an air leak, which should be sealed using a speaker baffle, or something similar.

The Memphis Audio PRX603 replaces these items:


Adding...
Memphis Audio 15-PRX63

Memphis Audio 15-PRX63

Power Reference Series 6-1/2" 3-way car speakers
  • 6-1/2" graphite-reinforced polypropylene woofer cone with polyurethane surround
  • PEI cone midrange driver and dome tweeter
  • handles up to 50 watts RMS (100 watts peak power)

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Customer Q&A

3 questions already asked

Q
Would I need separate tweeters or do these speakers include the tweeters?
jimmy  Jul 10, 2025
1 answer
A
The Memphis Audio PRX603 have a 3-way design with PEI (Poly-Ether-Imide) dome tweeter and PEI cone midranges.
jenny  Jul 10, 2025 (Staff)
Q
What would be the best gage for wiring these to an amp?
jared  Apr 08, 2020
1 answer
A
16 gauge would be appropriate.
casey  Apr 26, 2020 (Staff)
Q
what would be a good amp for four of these speakers?
thorin  Sep 28, 2019
1 answer
A
Thanks for your question. For information on selecting the best amp I would recommend reaching out to an Advisor by phone (1-800-324-9695) or online chat. They will be able to help determine the differences between the amp models and help you make the best choice for your system.
kristina  Oct 15, 2019 (Staff)

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Memphis Audio PRX603
$114.95 pair
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