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Memphis 15-PR15D4

15" Dual 4 ohm Power Reference Series Subwoofer

Discontinued
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This item has been discontinued

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  • 15" Dual 4 Ohm Power Reference Subwoofer
  • Power Handling:
    • Peak: 500 watts
    • RMS: 250 watts
  • Impedance: Dual 4 ohm
  • Polypropylene cone woofer
  • Wide roll rubber surround
  • Powder coated gray, vented basket
  • 2" Vented black anodized aluminum voice coil former
  • 50oz. Magnet structure
  • Frequency response: 20-2000 Hz
  • Sensitivity: 91 dB
  • 1-year SonicElectronix.com warranty

Product History:

Memphis 15-PR15D4 thumbnail
(newest, current model)
Memphis 15-PR154D thumbnail
(previous model, replaced by Memphis 15-PR15D4)

Subwoofer Specifications

Subwoofer Series
Each subwoofer manufactured is part of a series. This is the name of the subwoofer's series.
Subwoofer Size
Refers to the diameter of the subwoofer, measured in inches.
15"
Peak Power Handling
Peak power handling refers to the amount of power a speaker can handle during a brief musical burst. The RMS power range figure is a much more reliable rating for determining the speaker's power requirements. The Peak power handling specification is typically rated per speaker unless otherwise noted.
500 watts
RMS Power Handling
The RMS power is the amount of power the speaker requires to operate safely and properly. RMS Power Handling refers to the amount of power a speaker can handle on a continuous basis. We recommend powering your speakers or subwoofer with 80%-120% of its recommended RMS rating. The RMS power handling specification is typically rated per speaker unless otherwise noted.
250 watts
Voice Coil(s)
Dual voice coil subs have more wiring flexibility than single voice coils subs; however, single voice coil subwoofers provide easier hookup options for wiring multiple subwoofers in parallel or series. You may also run a dual voice coil (DVC) sub in parallel, series, or combination. A quad voice coil has four voice coils and is equal to two dual voice coil subwoofers as far as wiring goes.
Dual
Impedance (Per Voice Coil)
The load value (in ohms) that the speakers present to the amplifier per voice coil - the amount of resistance to the current flow. This is a key specification as subs wired in parallel or low impedances can create problems with your amplifier and potentially void all warranties. We encourage you to ask our support department prior to purchase if you do not understand which impedance level will suit your application best.
4 ohms
Voice Coil Diameter
Diameter of voice coil, usually measured in inches.
Frequency Response
The range of frequencies the speaker will reproduce (lowest frequency to the highest). Bigger is better, meaning the wider the range, the better. The optimal range is 20 - 20,000 Hz (which is the range of human hearing).
20 - 2000 Hz
Sensitivity
An efficiency or sensitivity rating tells you how effectively a speaker converts power into sound. The higher the number, the more efficient the speaker and the louder it will play with the same input power. An efficient speaker helps you maximize your available power. Most sensitivity ratings measure the speaker's output with 1 watt of input, 1 meter from the speaker. Some speakers' sensitivity is measured with 2.83 volts of input, instead of 1 watt.
 
Efficiency (1w/1m) is not an accurate indicator of a subwoofer's output capability and should not be used as a comparison to other speakers or subwoofers to determine which one is "louder".
91 dB
Subwoofer Design
This is the design of the subwoofer or the opening of the subwoofer enclosure. Each design has it's own benefits, whether it is a square, circle, or oval.

Round/Circle: This is the typical and common subwoofer design. They have a round cone and are a circle in design.

Square: These woofers are able to achieve a greater cone area in a smaller space. Because of the greater surface area, some square subwoofers will be louder than a round subwoofer of the same size.

Round / Circle
Main Cone Color
This is the color of the speaker's or subwoofer's cone.
Black
White
Woofer Composition
Lightweight woofer cone materials are essential for efficient operation. Poly cones produce exceptional sound and are sturdy against various changes in temperature. Paper cones are very efficient, and when treated for moisture resistance, will perform at a high level. Poly refers to polypropylene, which is thermoplastic or fibers that are polymers of propylene. IMPP refers to injection molded polypropylene, a commonly used process and material in speakers.
Polypropylene
Woofer Surround
A speakers surround is part of the suspension system. The surround protects the cone and prevents it from being displaced as it flexes out from the basket. It is usually made of a durable material like treated foam or rubber in order to withstand the strenuous job of producing bass frequencies.
Rubber
Magnet Structure
Defines the overall structure of the subwoofers magnet.
Subwoofer Grille
Most subwoofers are able to accommodate a universal grille; however, some subs include a grille and others have a specific, optional grille available for purchase separately. If "yes", then the subwoofer includes a grille. If "optional (sold separately)" the matching grille will need to be purchased in addition to the sub.
No
Re-Cone Kit Available
Some higher end subwoofers have replaceable cone assemblies. In case of a blown woofer, a recone kit allows for a simple replacement, as opposed to purchasing an entire new subwoofer.
No

Recommended Enclosure Specifications

Optimum Sealed Box Volume
This value indicates the ideal sealed box volume that the manufacturer recommends for the subwoofer. The volume is typically displayed in cubic feet.
Optimum Ported Box Volume
This value indicates the ideal ported box volume that the manufacturer recommends for the subwoofer. The volume is typically displayed in cubic feet.
Top-Mount Depth
The depth when installed on top of the mounting surface. Measured from the bottom of the speaker's magnet to the bottom of the mounting holes on the rim of the speaker.
6.5"
Shallow Mount Installation
This means that the subwoofer/speaker is designed to be installed in areas that do not have a lot of space. Shallow mount subwoofers are typically found under a seat or behind the seat in some trucks.

Shallow mount speakers will typically have a mounting depth of 2" or less, while shallow mount subwoofers will typically have a mounting depth of 3" or less.

No

Electromechanical Parameters

Free-Air Resonance (Fs)
The free-air resonance frequency of the subwoofer, measured in Hz. At this frequency the weight of the moving parts is perfectly balanced with the subwoofers suspension system.
Equivalent Compliance (Vas)
This is the amount of air that has the same stiffness as the subwoofers suspension. The greater the rating, the lower the stiffness and larger recommended enclosure. It is measured in Liters.
Total Speaker Q Value (Qts)
This is the subwoofers relative damping (Q) at the resonance frequency (Fs), including all dimensionless losses. Essentially, a high Qts value (closer to 1.0) means the subwoofer is great for sealed enclosures and a low Qts value (closer to 0) means the woofer is great in vented enclosures. A Qts of around 0.45 means the woofer will work decently in either enclosure type.
Electrical Q Value (Qes)
The subwoofers relative damping (Q) at the resonance frequency (Fs), including electrical losses. Also called the mechanical damping of the subwoofer. The unitless measurement usually varies from 0.5 10.
Electrical Resistance of Voice Coil (Re)
Amount of DC resistance of the subwoofer when measured with an ohm meter. Typically, this will read less than the impedance rating of the subwoofer.
Mechanical Q Value (Qms)
This is the subwoofers relative damping (Q) at the resonance frequency (Fs), including mechanical losses. Also called the mechanical damping of the subwoofer. This unitless measurement usually varies from 0.5 10.
Efficiency Bandwidth Product (EBP)
This number represents the trade off between having an efficient woofer and one with a wide bandwidth. To calculate this number, take the Fs and divide it by the Qes. If the number is below 50, the woofer is designed for a sealed enclosure only. If it's between 50-100 it can be used in either. Lastly, if it's greater than 100 it's designed for vented enclosures.

Specials with this Item

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Warranty and Return Policy

Parts Warranty Duration
1 year
Labor Warranty Duration
1 year
Warranty Provider
Sonic Electronix

Summary of Customer Ratings & Reviews

Rating Distribution

5 Star
70%
4 Star
20%
3 Star
0%
2 Star
0%
1 Star
10%

Average Attribution Rating

Durability
4.0
Value
4.3
Features
4.1
Design
4.4
Usability
4.7
joel

melbourne, FL

Overall
Durability
Value
Features
Design
Usability
good entry level sub

January 26, 2010

these sub are extremely boomy and loud, i owned a pair for a year and couldn't kill them i was putting 300rms to each sealed and they rock, for the average listener their the best woofer you can get in this price range, great speaker, but lacks l.f.p. below 35. very efficient sub hit 145db in buick skylark on music. great beginners sub. would recommend to any teenager looking to turn some heads and unleash their gorilla. will do a little hair trick if you know what your doing. i would recommend a ported box.

2 of 2 found this helpful

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RIBZ

Cedar Rapida, IA

Overall
Durability
Value
Features
Design
Usability
These subs are the awsum

November 5, 2009

I have two of Memohis power REF 15'' in my 92 GMC jimmy on a Memphis 1.500 wtt amp and let me tell you they sound so awesome, money well spent. my friends told me that they could here me from 4 blocks away and i live on a vary busy road. there so good that i'm planing to get two more and see where that puts me. i would most def get them that is if you can handle them

2 of 2 found this helpful

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Kameron

Hemet, CA

Overall
Durability
Value
Features
Design
Usability
GREAT FRIGGEN SUBWOOFER

October 19, 2009

this is the best subwoofer i ever owned. i have 2 in a custom box with a lanzar vide1000. these things shake everything in site, and there not even broken in yet!!!! i would recommend theses subs to anyone. they are by far the best subwoofers for the money.

2 of 2 found this helpful

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Beazey

Leedey, OK

Overall
Durability
Value
Features
Design
Usability
love this

October 14, 2009

i bought one of these from one of the local audio shops an i love it...it aint as loud as i would like it to be but it sounds great if you have a good box and amp...its definitely worth what your payin for here its a lot cheaper than what i got it for

2 of 2 found this helpful

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P Shell

Eupora, MS

Overall
Durability
Value
Features
Design
Usability
Low Price, Nice Sound

February 3, 2009

I have two of these subs in an old Grand Marquis with a ported box and they are extremely loud. I have them hooked up to a kenwood 8104 amp at 2 ohms and my trunk sounds as if i have some explosives from iraq back there. But it you are looking for some nice stufffor the low i would highly recommend these subs.

2 of 2 found this helpful

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Grapestreet

Mcminnville tn

Overall
Durability
Value
Features
Design
Usability
Poop

April 23, 2012

I have 2 of these and put them on a boss 5000 watt amp and locked them both up 2 seconds into the song. They are garbage if you ask me.

0 of 0 found this helpful

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rekesia

charlotte, NC

Overall
Durability
Value
Features
Design
Usability
GREAT SUBS SOFAR!!!

August 25, 2011

Had these speakers since last year have yet to find the right amp for them, burnt out 2 power acoustik 4000d amps within a couple of months.

0 of 0 found this helpful

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brett

green bay, WI

Overall
Durability
Value
Features
Design
Usability
Best Bang for your Buck!

April 30, 2008

I have two of these in a memphis vented box, they are powered by a Kenwood 2 channel amp pushing 250 rms to ea and they hit very hard!! My two subs can compete with anyone at my school and keep up with the JL 12w6's and the Alpine swr 15". For the price you can't get a better sub that will hit this hard!! I recomend this sub to anyone looking for big bass without the high price!

0 of 0 found this helpful

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Monique

Hillsville, VA

Overall
Durability
Value
Features
Design
Usability
must have a good amp!!!

April 30, 2008

man i have this friend who has one of these and it would be a great sub if he had an amp that was worth more than 3 dollars. his amp sucks so it make the sub suck my 12" kicker blows his out of the park when mine aint even turned up and his is in a ported box. if you are going to spend this much on a sub you have to get a good amp.

0 of 0 found this helpful

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Daniel

Anchorage, AK

Overall
Durability
Value
Features
Design
Usability
A must have

April 23, 2008

I bought this woofer to replace my burnt out Audiobahn AWE15 1200 watt sub. Of course the Memphis sub is only rated at 250 watts rms so I wired it to run at 8 ohms to my Rockford 1001bd in a 4.5 cubic dual ported box (10x4" ports). This sub rocks!!!! My amp is all the way down, and at 8ohms(it's 1 ohm stable) and it is too loud. I have punished this sub with my amp and it just keeps going. It is sooo loud, I can't imagine anything better. I've had alot of expensive subs and this is comparable to all of them. I will be buying 3 more of these soon!

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Accessory Tools and Products

Accessories added

25 ft. of Streetwires 12 Gauge Speaker Cable

You'll need speaker wire to hook up that new subwoofer!

Your Price $44.95

20 Square Feet of Sound Dampening Material

NVX Sound dampening is thicker than competitors, eliminates rattles and gives you bigger bass!

Your Price $59.99

Dynamat Sound Dampening Trunk Kit

Did you know sound dampening will reduce those annoying rattles and even increase your SPL?

Your Price $109.95

Stinger Sound Dampening Trunk Kit

Stinger's Roadkill sound dampening series is sure to kill unwanted road noise and rattles! Enough sound dampening for your whole trunk!

Your Price $69.99

12 oz. Can of Adhesive Spray

Spray adhesive used for adhering carpet to subwoofer boxes without bubbles.

Your Price $6.99

Spring Post Terminal Cup

Makes adding a spring post terminal to an enclosure simple! Banana clip ready!

Your Price $3.99

40" x 15 Ft Piece of Premium Un-Backed Automotive Trim Carpet

Durable design for long life-span, available in many colors and shades.

Your Price $39.99

Gold Plated Dual Terminal Banana Plug Connector

Enables an expandable, secure connection accepting up to 8 gauge wire.

Your Price $1.99

Car Stereo and Speaker Installation Tool Kit

Includes Test Light, Crimp/Splice Tool, Multi-bit Screwdriver and more.

Your Price $12.99

Xscorpion 9-Piece Nylon Plastic Pry and Chisel Tool Set

Easily removes dash/trims, door clips, panels and pins, rubber grommets and vehicle emblems.

Your Price $14.99

Cordless Multi-Functional Heat Tool Soldering Iron Kit

Continuous working lock allows you to work without holding down trigger.

Your Price $79.99

4 Ft of 1/4" Thick Black Heat Shrink Tubing

Provides abrasion resistance and added protection for your cables.

Your Price $3.99

2" Universal, Professional Heavy Duty Roller for Sound Damping/Dampening

Universal rubber roller to make it easy to install sound dampening.

Your Price $7.99

1mm All Purpose Solder

Solder is all purpose for use on most projects where solder is needed.

Your Price $8.99

15" Protective Waffle Metal Subwoofer Grille

Keep your subwoofer looking amazing while keeping it safe with its durable metal construction!

Your Price $6.99

Scosche SPL Meter

Monitor the noise level of your new car audio system with this SPL meter measuring from 60-135 dB.

Your Price $21.99

Impedance Meter / Signal Generator

Easy to locate tuning frequencies of passive radiators and ported enclosures

Your Price $299.99

1 Memphis 15-PR15D4 Subwoofer

Mono Amp

2 Channel Amp - Bridged

2 Memphis 15-PR15D4 Subwoofers

Mono Amp

Mono Amp - Option 1

2 Channel Amp

2 Channel Amp - Bridged

4 Channel Amp - Bridged

3 Memphis 15-PR15D4 Subwoofers

Mono Amp

4 Channel Amp

4 Memphis 15-PR15D4 Subwoofers

Mono Amp

2 Channel Amp

2 Channel Amp - Bridged

4 Channel Amp

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Product Summary

Manufacturer

Model Number

15-PR15D4

UPC

702588119173

Weight

18.00lbs

Internal SKU

15pr15d4

Internal Product ID

10400

Sonic Electronix Wiring Guide

Wiring Diagram Legend

Warning: The image depicted shows the resistance change when wiring multiple subwoofer terminals. Please refer to your subwoofer's owner's manual for the proper wiring of its terminals. Sonic Electronix, Inc. is not responsible for damage caused to your audio system or vehicle due to improper installation. Please call tech support at 1-877-289-7664 if you require additional assistance.

Product Name: Memphis 15-PR15D4