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SPL SP3-15

15" Dual 2 ohm SP3 Series Car Subwoofer

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  • 15" Dual 2 ohm SP3 Series Subwoofer
  • Power Handling:
    • Peak: 2800 watts
    • RMS: 1200 watts
  • Polypropylene injection molded cone woofer
  • Butyl rubber surround
  • Conex/Cotton composite spider
  • Texture coat finish on stamped steel basket
  • KSV Kapton voice coil
  • Nickel plated 8 Gauge compression wire terminal
  • Vented back plate
  • Suspension integrated tinsel leads
  • 180 oz. Magnet structure
  • Sensitivity: 86 dB
  • 1-year Manufacturer's warranty

Subwoofer Specifications

Subwoofer Series
Each subwoofer manufactured is part of a series. This is the name of the subwoofer's series.
SP3
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.
2800 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.
1200 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.
2 ohms
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".
86 dB
Xmax (millimeters)
Typically measured in millimeters, the Xmax value is the measure of a speaker cone's maximum excursion in one direction while maintaining a linear behavior.
38.6 mm
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.
Silver
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.
Injection Molded Polypropylene (IMPP)
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.
Butyl Rubber
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

Recommended Enclosure Type
This is the recommended type of enclosure that the subwoofer should be installed into. Some subwoofers are specially designed for particular enclosures.

Sealed: These enclosures completely enclose the air inside the box. These boxes produce a tight bass.

Ported/Vented: These enclosures have a slot of air to escape from the box. The result is a sound that has more "boom".

Bandpass: These are a combination of both sealed and ported enclosures. They can be very efficient, but require tuning for the best response.

Ported / Vented
Sealed
Minimum Sealed Box Volume
This value indicates the minimum sealed box volume that the manufacturer recommends for the subwoofer. The volume is typically displayed in cubic feet.
2.0 cubic feet
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.
Maximum Sealed Box Volume
This value indicates the maximum sealed box volume that the manufacturer recommends for the subwoofer. The volume is typically displayed in cubic feet.
2.0 cubic feet
Minimum Ported Box Volume
This value indicates the minimum ported box volume that the manufacturer recommends for the subwoofer. The volume is typically displayed in cubic feet.
4.0 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.
Maximum Ported Box Volume
This value indicates the maximum ported box volume that the manufacturer recommends for the subwoofer. The volume is typically displayed in cubic feet.
4.0 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.
8-1/2"
Cutout Diameter
The actual diameter of the hole you will need to cut out if you are creating a new mounting location for this speaker, or if you are mounting a subwoofer in a box.
14"
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

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
Manufacturer

Summary of Customer Ratings & Reviews

Rating Distribution

5 Star
80%
4 Star
10%
3 Star
10%
2 Star
0%
1 Star
0%

Average Attribution Rating

Durability
4.5
Value
4.8
Features
4.4
Design
4.3
Usability
4.7

Joseph

Madison, AL

Overall
Durability
Value
Features
Design
Usability

Amazing sound quality, even at high power.

May 13, 2011

It's Friday the 13th for the month of May. It's been exactly 5 months since I have owned and used this subwoofer. I never would have thought I would trust a brand I never used to satisfy the quality and strength of my intentions. I'm using this in my room with a car amplifier powered by an AC to DC converter (given only powers about 600rms) with my shelf Sony system. The lows fulfill a love to audiophiles who love the lowest bass that almost goes out of your hearing range. For the price Sonic Electronix gives, why would you go into any other audio shop? These hit amazing clean and knocks picture frames off the inside of the house if the volume is just right. If you have to make a decision, go sealed. Excursion looks like a paint mixer for those who are curious for that kind of ability. I would recommend this to everyone looking for a subwoofer that can cause sickness to your stomach.

2 of 2 found this helpful

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JBoy

Louisa, KY

Overall
Durability
Value
Features
Design
Usability

Honest Review

May 8, 2013

I had a couple of these for 3 months now and I honestly have to report that the SPL SP3-15 is a great value. I beat them extremely hard on rock n' roll, powering them with a Rockford Fosgate DB2000T amp, 2 batteries and an 120 amp alt. with 0 ga wire. They take it like a champ but be careful if your doing alot of bass sweeps they can get hot and heat will kill any sub. If your like me and broke...these subs will do you right with some common sense. Box them right and if they start to get smelly turn it down and readjust your system. They'll do what you want if you have patience and tune your system in. Be smart don't just cook them but that goes with any sub. P.S Got these on eBay for $92 a piece. Thanks Sonic love your eBay items.

0 of 0 found this helpful

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will from tone city

san antonio texas

Overall
Durability
Value
Features
Design
Usability

love it.

January 27, 2013

i had 2 sp3-12s for 9 months'. then went with these 15s. they hit great, amazing subs. the only con is. the ohm loads are off, and even with the mfd rec wire their still off, they are dual 2ohm subs but read 3.3 to 2.8... and if you run in series they jump to almost 6.3 ohm, and ran in par they drop to .3... and only the spring term clips are cheap and break easy.

0 of 0 found this helpful

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Dave

Philadelphia, PA

Overall
Durability
Value
Features
Design
Usability

It was good until...

December 21, 2012

Honestly I was looking for a decent sub and wanted to experiment with a 15 without breaking the bank. Having never listened to SPL before, I took a leap of faith. Originally she sat in a 2.4 cu foot sealed box. It hit well but I wanted a bit more room in the trunk and wanted it to be crisper. I brought the box down to 1.9 cu feet. Definitely an improvement. It was nice for about 6 months. Then it stopped playing. My amp was fine. The sub wouldn't play on 3 different amps that I tried. Sent it back to SE and they gave me a replacement. Well.. 5 months have passed and it did it again. Not sure if I'd recommend this product after the problems it's been giving me. While it played though, it was worth the money.

0 of 0 found this helpful

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SpeakerKnockz

Memphis, TN

Overall
Durability
Value
Features
Design
Usability

Bang for your buck!

April 24, 2012

I had never owned 15s before and these were my first pair. I had them each wired down to it's own amp on 0ga at 1ohm with a battery in the rear. The enclosure was vented, of course! These things SLAMMED! Trunk rattling! Window shaking! Head turning! For the money, it's a good buy. You just have to feed it properly. They don't put out NEARLY as much rms as they proclaim and I wouldn't recommend trying to give it to them. Pros: Affordable, Produce a lot of bass, Heavy, Durable Cons: At the price, none!

0 of 0 found this helpful

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155THINF

Brookhaven, MS

Overall
Durability
Value
Features
Design
Usability

TRULY MONSTER SUBS!!! BEST BANG FOR YOUR BUCK

April 6, 2012

I have two of these monster 15"s in a sealed enclosure and they smash da competition. I have beat alot of people with more expensive setups with these subs using less power. If you know how to install these subs properly and use the right amount of power, you can have one banging system that can hold its own with the best!! The sick part about my system is these subs are not broken in yet and I'm using a sealed box, so they can only get louder an deeper with time. Make sure you have a quality mono amp that produces a clean 800-1400 watts rms @ 2 ohms!!!

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Sam

Olathe, KS

Overall
Durability
Value
Features
Design
Usability

Awesome Value

August 28, 2011

I bought this sub and had it running in literally a (badly) sealed old bass amp box for a while and it still knocked pretty good. I now have it in a custom box for my Civic, feeding it all of 1500w RMS and it outlasted the amp! I plan on getting at least another 1500w amp to power this thing. I would get another if I had the space. Had a JL 13W7-D1.5 before this, and I think this one is louder. Sure it's a 15" and being given an extra 500w, but for $100 sub this thing is crazy.

0 of 0 found this helpful

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Dj HiT 1, Jerome H

Detroit

Overall
Durability
Value
Features
Design
Usability

The Biz-omb

June 7, 2011

I had an SPL sub in the past and it made my head hurt every time it hit. Till I got jacked! It works very well with my Rockford class D 1500 just like the last one I had. It rocks believe me (hooked up right) I got hearing loss to prove it! Dj Hit 1, I'm out

0 of 0 found this helpful

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joseph

stockton, CA

Overall
Durability
Value
Features
Design
Usability

slaaaappppssss

June 3, 2011

Love it its been 5 months nd it hits really hard im goin to purchase another nd wire it with a seperate amp

0 of 0 found this helpful

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junbug

washington dc

Overall
Durability
Value
Features
Design
Usability

spl sp3 this is the boom

April 23, 2011

Wuz up guys all I have to say is this sub hits really hard. I have one 15 SPL SP3 and it is power by a 2000 watt spl class D amp and note that I have it running of my factory car stereo so I can't wait until I get my flip out or a in dash to see what it really can do. and also I did not even tweak my amp ether so for my first system this is a really good system and for the price I would recommend this sub for a person that like they car flexing.

0 of 0 found this helpful

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RaiderRay

Colorado Springs

Overall
Durability
Value
Features
Design
Usability

SPL Sp3 15

February 15, 2011

I have two in a ported box with about 800 watts rms to each of them. They hit pretty hard and sound really good for the price. They are broken in now so I plan on putting 1100 - 1200 watts to both and see what they can really do. I would recommend to anyone who wants loud loud bass.

0 of 0 found this helpful

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RaiderRay88

Colo Spgs

Overall
Durability
Value
Features
Design
Usability

Good 15's

February 3, 2011

I have had these subs for a week and they pound real hard. Only puttin 800 watts at 2 omhs to each sub and they pound. I can still turn up the amp but waitin till they break in. Would recomend to anyone who wants alot of bass. Go ported and have a good amp that will push about 800 to 1000 watts RMS at 2 ohms. Might buy two more for competition purposes.

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shane

carmichael, CA

Overall
Durability
Value
Features
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Usability

hits hard.

January 29, 2011

Love this sub, great price, amazing quality, loks good inverted, powered by an SSL amp, hit so hard my windshield, roof windows, trunk, back and front seats flexed or vibrated like crazy, definitely recommended!

0 of 0 found this helpful

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nino

streamwood

Overall
Durability
Value
Features
Design
Usability

perfect subs

October 5, 2010

this are one of the best subwoofers i ever bought. I am running 4 of these on my truck. And they sound loud my windows came down..... so i replaced them with flexing windows. And by the way i was running them at 4000 rms with one mono block rockford fosgate. and i wish they made this 18s also

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Scott

Tucson, AZ

Overall
Durability
Value
Features
Design
Usability

Greatest Sub I've Ever Bought.,,, PERIOD!

September 28, 2010

A fantastic subwoofer. has much good excursion and is extremely flexible. Works very well under large amounts of wattage, and with the right box for it, such as my custom made, ported box, I have never been happier! Runs loud and true, and hasn't failed on me yet. I've had mine for about five months now so in order to write a good review all I can say is WOW! It's strong and loud. You only need one to be impressed by one, and you'll be excited to buy! Just don't think about it, just do it. You wont be disappointed.

0 of 0 found this helpful

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Jessica

Charleston W.V.

Overall
Durability
Value
Features
Design
Usability

Great Product!

September 1, 2010

I have two of these in a Ford Explorer and it sound awesome! These r the best i have bought.

0 of 0 found this helpful

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Pauly

New York, Buffalo

Overall
Durability
Value
Features
Design
Usability

Excellent Buy

July 28, 2010

I have previously owned one of these sub woofers. The excursion is great, price is great, spider is extremely flexible.

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Paulyfr3sh

New York

Overall
Durability
Value
Features
Design
Usability

Wooo!

June 8, 2010

Amazing Subwoofer. The excursion goes beyond any subwoofer within 80-100$ in its class. 1 ohm stable meaning you can get maximum power out of your amplifier. Tinsil Lead is thin, but its a 120$ sub. Great price, Great Buy. I hit a 136 db with 1 of these and a low frequency. Knocks hard.

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Josh

Appomattox

Overall
Durability
Value
Features
Design
Usability

SPL SP3-15

January 13, 2010

I have two of these in a Toyota Solara and I have two of the Power Acoustik Bamf 2000 ID amps and these things knock!

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Bill

Los Angeles, CA

Overall
Durability
Value
Features
Design
Usability

SPL SP3-15

November 17, 2009

I have two of these and I kid you not they hit about two times harder than my old two twelve inch Kicker CVXs.

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Accessory Tools and Products

Accessories added

15 Dual Sealed Single Cab Truck Subwoofer Box

Durable 11/16" Medium Density Fiberboard (MDF) construction.

Your Price $89.95

Single 15" Sealed MDF Subwoofer Enclosure

15-inch Sealed Car Sub Box Made with 3/4" MDF and lined w/ Polyfil.

Your Price $44.99

25 ft. of Streetwires 12 Gauge Speaker Cable

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

Your Price $44.95

Belva 23 ft. of 12 Gauge Speaker Wire

Ultra-flexible PVC blended jacket for easy installation.

Your Price $14.99

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

20 oz. Bag of Poly-Fil

Polyester fiber fiberfill adds better bass to your system.

Your Price $5.99

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

Gold Plated Dual Terminal Banana Plug Connector

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

Your Price $3.99

Car Stereo and Speaker Installation Tool Kit

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

Your Price $12.99

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

AutoSound 2000 CD-101

Low frequency test CD

Your Price $11.99

Impedance Meter / Signal Generator

Easy to locate tuning frequencies of passive radiators and ported enclosures

Your Price $299.99

1 SPL SP3-15 Subwoofer

Mono Amp

Mono Amp - Option 1

2 Channel Amp - Bridged

2 SPL SP3-15 Subwoofers

Mono Amp

2 Channel Amp

4 Channel Amp - Bridged

3 SPL SP3-15 Subwoofers

Mono Amp

Mono Amp - Option 1

4 Channel Amp

4 SPL SP3-15 Subwoofers

2 Channel Amp

4 Channel Amp

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Product Summary

Manufacturer

Model Number

SP3-15

UPC

709483030428

Weight

22.00lbs

Internal SKU

sp315

Internal Product ID

17658

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: SPL SP3-15