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Soundstream R3.8

500W 8" Reference R3 Series Dual 2 Ohm Subwoofers

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$49.95

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Soundstream R3.8

500W 8" Reference R3 Series Dual 2 Ohm Subwoofers

$49.95

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NVX 25 ft. of True Spec 12 Gauge Speaker Wire

100% OFC wire with EnvyFlex metallic jacket insulates and protects against damage from extreme conditions.

$39.99

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20 Square Feet of Sound Dampening Material

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

$53.99

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

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

$7.99

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Bundles with this Product

Add a Sound Dampening Kit with Your Subwoofer Purchase!

Improve the quality of your bass by adding an NVX SDTK20 Sound Dampening Trunk Kit to your Subwoofer purchase. Simply click the "Add Both to Cart" button. This offer cannot be combined with any other coupons or offers.

0.00

79640

841

Soundstream R3.8

$49.95

+

NVX SDTK20 - 90mil 2.3mm THICK

$53.99

Special Price $53.99 ($53.99 if purchased separately)

NVX SDTK20 - 90mil 2.3mm THICK

• Eliminates Road Noise
• 2.3mm (90.55mil) thick for better performance
• Quiets Vibrations
• Stops Rattles • Increases SPL
• Reduces Heat
• Simple To Install
• Easy To Form Aluminum
• Four Step Peel and Stick Installation
• Five 18" x 32" Pieces

Add a Vented Enclosure with Your 8" Subwoofer Purchase!

Add an Atrend 8SQV Vented Subwoofer Enclosure to your 8" Subwoofer purchase. Simply click the "Add Both to Cart" button. This offer cannot be combined with any other coupons or offers.

0.00

79640

2653

Soundstream R3.8

$49.95

+

Atrend 8SQV

$55.95

Special Price $55.95 ($55.95 if purchased separately)

Atrend 8SQV

• 8" Single Pro Series Vented Subwoofer Enclosure
• Premium carpeted finish
• Silver Spring Loaded Terminal Cups
• Completely Miter And Dado Panels
• Glued And Braced With Fasteners

(Offer 1 of 2)

Combined Total Price

$103.94

Soundstream Audio Store

General Features:

  • 8" Dual 2 Ohm Reference R3 Series Subwoofer
  • Power Handling:
    • RMS: 500 watts
  • Oversized concave IMPP primary cone
  • Die-cast aluminum soundstream reference R3 frame
  • Inverted roll polyether foam surround
  • 2" 4-layer stitched voice coil
  • Nickel plated 12 ga. compression wire terminal
  • Double stacked magnet, t-yoke, and top plate
  • Top-mount depth: 5.25"
  • Sensitivity: 80.7 dB
  • Authorized Internet Dealer
  • 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.
Reference R3 (Soundstream)
Subwoofer Size
Refers to the diameter of the subwoofer, measured in inches.
8"
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.
500 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
Voice Coil Diameter
Diameter of voice coil, usually measured in inches.
2"
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".
80.7 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
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.
Poly-Foam
Magnet Structure
Defines the overall structure of the subwoofers magnet.
Single Stacked
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.

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
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.
0.75 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.
1.25 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.
5.25"
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.

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.
39 Hz
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.
18.392 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.
1.1517
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.
1.3713
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.
2.2122 ohms
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.
7.1915

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
33%
4 Star
33%
3 Star
17%
2 Star
0%
1 Star
17%

Average Attribution Rating

Durability
3.7
Value
4.0
Features
4.7
Design
4.5
Usability
4.5
MIro

Apple Valley, CA

Overall
Durability
Value
Features
Design
Usability
Build quality was an issue

July 13, 2014

Bought this sub a couple months ago and just thought id write a review on it now since i just came across it while looking for another subwoofer,and well i only had it for about a week not sure exact amount of watts it was getting but it was around the 500 watts that its rated for it was on a fosgate t400-2 in a 1 cubic foot box tuned to about 33 hz all gains were set with smd dd1 and crossovers with smd cc1...when i first installed it it was nice it sounded great i was actually going to buy another one but after about a week the spider detached from the coil former idk maybe it was bad glue but i ended up taking it apart since i had no use for it once i did i noticed the coils were both still good so the only con i have about this sub is that it could have been built better ive never had that happen to me before so this is a first for me...i would recommend this sub if only that was not an issue

21 of 25 found this helpful

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sherb

raleigh.Nc

Overall
Durability
Value
Features
Design
Usability
I love this speaker

February 6, 2015

They are built to last and they handle lots of power

18 of 22 found this helpful

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sherb

raleigh.Nc

Overall
Durability
Value
Features
Design
Usability
I love this speaker

February 6, 2015

They are built to last and they handle lots of power

14 of 18 found this helpful

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carlos

N.C. CA

Overall
Durability
Value
Features
Design
Usability
Big sound for a small sub

May 26, 2015

In a 240sx I used to run a 12" alpine type X, but there goes the trunk and I wanted something smaller. Running this 8" sub off a1800 watt soundstream amp at 1 ohm on a modified bazooka tube ( 1" spacer & lots of grinding). Biggest 8" sub Iv'e seen. After breaking it in Sound quality is very nice. Handles lows very well and hits very hard for a 8" sub. I would say it could hang with a 10" CVR. For the price you wont be dissapointed, best bang for your buck.

11 of 14 found this helpful

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r3 8 hater

salt lake city utah

Overall
Durability
Value
Features
Design
Usability
Was good intel it split open

June 23, 2016

the whole cone was slit clean from the spider as if it had been cut in half bye a samurai warrior. my amp i was running was a 250 watt rms terminator amp it was pounding good and deep intel snoop came on the track. the woofer did not hold up i would not own this subwoofer or buy one. rest in piece paycheck. i loved the woofer for a solid 6 months. in fact i was in love with its deep tones and deeep bass. i played it hard for 6 months strait never had problems when is was on my boss 3000 watt amp.( fyi boss 3000 watts is actually like 150 watts lol) . but my mtx 250.1D blew it in a jiff

0 of 0 found this helpful

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Adrian

Raymondville, TX

Verified Purchase
Overall
Durability
Value
Features
Design
Usability
great bang for ur buck

December 10, 2015

Great sub for the price, hits low and hard depending on ur tune. I recommend it if ur on a budget and ain't got a whole lot of room.

0 of 0 found this helpful

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Accessory Tools and Products

Accessories added

NVX 25 ft. of True Spec 12 Gauge Speaker Wire

100% OFC wire with EnvyFlex metallic jacket insulates and protects against damage from extreme conditions.

Your Price $39.99

25 ft. of Streetwires 12 Gauge Speaker Cable

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

Your Price $37.85

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 $53.99

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 $64.99

Dynamat Sound Dampening Trunk Kit

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

Your Price $94.95

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

Car Stereo and Speaker Installation Tool Kit

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

Your Price $18.99

Cordless Multi-Functional Heat Tool Soldering Iron Kit

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

Your Price $74.99

1mm All Purpose Solder

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

Your Price $7.99

12 oz. Can of Adhesive Spray

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

Your Price $8.99

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 $1.99

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

1 Soundstream R3.8 Subwoofer

Mono Amp

Mono Amp - Option 1

2 Channel Amp - Bridged

2 Soundstream R3.8 Subwoofers

Mono Amp

2 Channel Amp

4 Channel Amp - Bridged

3 Soundstream R3.8 Subwoofers

Mono Amp

Mono Amp - Option 1

4 Channel Amp

4 Soundstream R3.8 Subwoofers

2 Channel Amp

4 Channel Amp

Browse 3 questions and 4 answers
Hide answersShow all answers | Sort by
Why did you choose this?
Sonic Electronix Store
Great for my GTI hatchback. Sealed box and hits like there is no tomorrow.

I would recommend this to someone who is looking for great sound without breaking the bank.
Dominic M on Apr 3, 2015
Soundstream fan. This 8 is all you need to have a good clean bass sound
Kenneth W on Mar 19, 2015
Can 4 of the r3.8 subs be wired together using a mono amp?
foster b on Dec 15, 2014
Best Answer: Hello Foster,

Absolutely. Depending on the method of wiring used, your final load will be either 1ohm or 4ohms. So, make sure the amp is providing either ~2000w RMS @1ohm or @4ohms.

http://www.the12volt.com/caraudio/woofer_configurations.asp?Q=4&I=22#results
Reply (1) · Report · Sonic Electronix SStaff on Dec 15, 2014
· Add Answer · I Have This Question Too (0)
can i use this sub with out a box?
A shopper on Dec 6, 2014
Best Answer: Hello,

It will physically work, but will not perform very well. Subwoofers need are to compress and move, that is why an enclosure is so important. SOME subwoofers are designed to work in a "Free Air" environment; But the market for that is so small that most manufactures do not bother. We suggest researching your application further, for the best option.
Reply · Report · Customer SStaff on Dec 7, 2014
· Add Answer · I Have This Question Too (0)

Product Summary

Manufacturer

Model Number

R3.8

UPC

709483046313

Weight

13.00lbs

Internal SKU

r38

Internal Product ID

79640

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: Soundstream R3.8