Crutchfield - North America's electronics authority since 1974

1.888.955.6000
 
 
Free Shipping on Everything.  60-Day Money-Back Guarantee  |  Lifetime Tech Support
 

Sound Ordnance™ B-8PT

120-watt compact powered subwoofer

Zoom Sound Ordnance™ B-8PT
Front
Video loading and will display in just a moment.
Photos
Sound Ordnance™ B-8PT Sound Ordnance™ B-8PT Sound Ordnance™ B-8PT Sound Ordnance™ B-8PT Sound Ordnance™ B-8PT Sound Ordnance™ B-8PT Sound Ordnance™ B-8PT Sound Ordnance™ B-8PT
 
Videos
 
We don't check this item for fit or compatibility.

Item# 777B8PT offer details

By buying this product you'll earn up to 200 Rewards points.

When you sign up for a Crutchfield account, you’ll be enrolled in Crutchfield Rewards. You’ll earn one point for every dollar you spend on gear from us. You can turn your points into Rewards Cards that you can use toward future purchases. You can sign up for an account now, or after you complete your purchase (you’ll get credit for the points either way).

 
Sound Ordnance

Our take on the Sound Ordnance™ B-8PT

The Sound Ordnance B-8PT powered subwoofer turns the hard-to-fit spots in your vehicle into potent bass bastions, adding warmth and punch to your favorite music. You can fit this compact low-frequency factory under your car seat or in an out-of-the-way location in the cab of your truck. Preamp- and speaker-level inputs allow convenient connection to just about any system, plus you can tweak the phase control, bass boost, and low-pass crossover for maximum firepower in your vehicle. A wired remote lets you take command of your bass from the driver's seat.

The B-8PT's built-in amplifier sends 120 watts RMS to the 8" subwoofer, adding high-impact low notes that'll fortify your music. The Sound Ordnance logo means you'll get more than tremendous value and reliable performance — the B-8PT is reinforced with a 3-year warranty so you can add it to your system with confidence.

Highlights:

  • powered subwoofer
  • 8" woofer
  • built-in 120 watts RMS amplifier (250 watts maximum)
  • frequency response: 40-200 Hz
  • variable low-pass crossover (80-200 Hz)
  • variable phase control (0-180 degrees)
  • bass boost control (0dB to +10dB)
  • preamp- and speaker-level inputs
  • auto turn-on switch
  • wired remote control
  • 8- or 10-gauge wiring (not included) recommended
  • dimensions: 9-1/8"W x 3-1/4"H x 13-7/8"D
  • warranty: 3 years
  • Our 60-day money-back guarantee
 

Hands-on research from the Crutchfield Labs (what are the Labs?)

Features and Specs

Features and Specs
General
Enclosure Type
Loading...
Sealed
Finish Material
Loading...
Metal/plastic
Grille
Loading...
Metal
Connector Type
Loading...
RCA/Molex
Bi-amp Inputs
Loading...
No
Woofer Size (inches)
Loading...
8
Woofer Material
Loading...
Aluminum
Passive Radiator
Loading...
None
Width
Loading...
9-1/8"
Height
Loading...
3-1/4"
Depth
Loading...
13-7/8"
Second Depth
Loading...
N/A
Parts Warranty
Loading...
3 Years
Labor Warranty
Loading...
3 Years
Specifications
Frequency Response
Loading...
40-200
Amplifier Power (RMS)
Loading...
120 watts
Maximum Wattage
Loading...
250 watts
Sensitivity
Loading...
N/A
Impedance
Loading...
N/A
Second Voice Coil Impedance
Loading...
N/A
Crossover Point
Loading...
80-200

Product Research

Product Research
What's in the box?

Download owner's manual

  • Amplified subwoofer
  • Two 15 amp ATO fuses (1 installed)
  • Wired remote bass control
  • 14' Remote cable (RJ-14 plug on both ends)
  • 8" Speaker input harness
  • Two 6-1/4" x 2" Self-adhesive "Hook" strips (half of the Hook and Loop combination)
  • 3/4" Self-tapping screw (to mount wired remote)
  • Owner's manual
  • Warranty information

Our Product Research Team

At Crutchfield, you'll get detailed, accurate information that's hard to find elsewhere. That's because we have our own in-house Product Research team — they open the box, verify contents, check the owner's manual, and record dimensions, features and specs. We stay on top of new products and technologies to help people make informed choices.

Features
Controls
Connections

Features

Overview: The B-8PT amplified subwoofer features a 120-watt RMS (250-watts max) amp and an 8" sub housed in a rugged, compact enclosure designed to fit in tight spaces.

Wired Remote Control: The wired remote control puts control of your subwoofer output within easy reach. The remote can be mounted using the attached double sided tape or the included self-tapping screw. The dimensions are:

  • Width: 1-1/4"
  • Height: 1-1/4"
  • Depth: 1-15/16" (2-1/2" including the knob)

Mounting: The subwoofer, with its 3-1/4" height, can be mounted flat under a seat in the passenger compartment of many vehicles.

Controls

Power Mode:

  • Auto: amp turns on when a signal is present on the speaker-level input
  • Remote: amp turns on when 12 volts is applied to the remote terminal

Level: rotary dial to set the amplifier gain control

Bass EQ: bass boost; 0 to 10 dB

Phase: rotary dial to set the subwoofer phase; 0° to 180°

Frequency: rotary dial to control the low pass crossover frequency; 80 to 200 Hz

Connections

Power: power, ground, and remote inputs are on a screw terminal strip; each is 0.35" wide

Line Input: stereo RCA jacks

Speaker Input: Molex jack for included harness

Remote: 4-pin RJ-14 jack for use with included remote cable

 

Product reviews from the Crutchfield Labs

Product reviews from the Crutchfield Labs (what are the Labs?)
Video: Sound Ordnance Subwoofers

Video: Sound Ordnance Subwoofers

Zak Billmeier, Jo Greene
3/30/2010
based on 13 ratings (3 comments)
 

Car audio systems need a subwoofer to fill out the bass in your music and give it a full-bodied sound. Watch this short Crutchfield video to learn about the subwoofer options available from Sound...

 

Quick impressions from the Lab

Quick impressions from the Lab

Comment by Robert Ferency-Viars Staff Writer - Creative,

Written by Robert Ferency-Viars, Staff Writer - Creative, on 12/21/2011 12:41:00 PM

I recently added the Sound Ordnance B-8PT powered sub to the back of my car, a Nissan Versa, and I'm very happy with it. It's just the right amount of bass for me, and I immediately started hearing notes that I'd never heard in my car before. If I turn up the sub, it booms really well - it's not shy! But I like my bass tighter and more focused, so I have the gain set about midway to keep it under control. It's great! The remote control knob lets me turn it down when my sons are in the car, so they don't have to put up with the pounding bass.

Product Reviews

Review Summary

Average Customer Review:

407 people say:
(295)
(77)
(17)
(14)
(4)
 

Thanks for taking the time to share your experiences about this product. Please be sure to focus your comments on the product itself. Read our Review Guidelines for more information.

Review title
* Email
Your email won't be visible. Please use the email address that is associated with your order.
Display name
(e.g., JohnD) Your review will be signed using the display name and location
* Your location
(e.g., Charlottesville, VA)
* Your rating
Click on a star to rate the overall product on a scale of 1-5
1500 characters left * Your review
Attach a YouTube Review
Crutchfield Video Review Guidelines
  • Only submit videos that you made or are authorized to use.
  • Do not submit videos that contain music, video or visuals that are copyrighted and belong to someone else.
  • Please see our Review Guidelines for more information.
Submit the URL of your YouTube™ video review or product demonstration. e.g., http://www.youtube.com/v/o79TWHh598U
500 characters left Pros
500 characters left Cons
* Agree to Terms
By checking this box you agree your review becomes the property of Crutchfield, that you are over 18 years of age, that you own or have owned this product, and that you are located within the United States or its territories. Please see our Review Guidelines for more information. We reserve the right (but are not obligated to) review all submissions and edit or remove any review in any manner which we deem necessary. Your review should be posted within seven days.
1-10 of 407 items >> Sort Results By: Date Reviewed | Rating | Helpfulness
 
5 out of 5

Sound Ordnance™ B-8PT

Written By Cosmo, Houston on Friday, April 22, 2011
Crutchfield Customer Review (What's this?)
Crutchfield Customer Review

The reviewer purchased this item from us, verified by the email address on the order.

 
Vehicle: 2006 Subaru Baja Turbo.
System: Pioneer z130 + JL XD 400 4 ch amp+ Polk audio mm6501 front +Polk
audio mm651 rear + Sound ordinance b8pt powered sub= SOUND QUALITY!!
The highs are crystal clear and the lows are nice and deep. While this sub will not
rattle the windows and doors of your neighbors, it will play nicely and complement
the lows in a good sounding system. I did have to cut the carpet in the Baja to get
it to fit under the seats, however, the unit is low profile and should fit under most
seats. Very happy!!
1 out of 1 people found this helpful
Was this review helpful?    Yes | No
 
5 out of 5

Very happy! Perfect Fit!

Written By Blake, Hudson Wi on Tuesday, April 19, 2011
 
I started with a 1999 Jeep Wrangler Sahara with an all stock sound system. I
swapped out the stock speakers for a set of kickers for the front and roll
bar. The sound was much better, but still not want a wanted. I then added a
JVC head unit whihc was a 100% improvement, but the small speakers
needed some help on the lower end. I then added this sub and BINGO! I am
right where I want to be.

The sub would not fit under any of the seats, so I put it in the back. With the
exception of bozooka tubes, there are not too many options out there for a
powered sub. It really rounds out the bass great and compliments the rest of
my system. The remote knob is a key too. I leave the power setting set at
about 80% on the unit, set my equalizer at dynamic on the head unit and then
use the knob to bring in or take away the bass as I need it.

This is not a BOOM BOOM BOOM sub, so if you 16 and your underwear is
showing, go elsewhere. But, if you more sophisticated, this just might be the
perfect fit for you.
8 out of 8 people found this helpful
Was this review helpful?    Yes | No
 
5 out of 5

Easy installation for an instant upgrade in sound

Written By Woodrahm, Atlanta,GA on Friday, April 22, 2011
 
Works very well in all my listening genres. Contrary to some of the reviews I rate this subwoofer as great for needed bass in any application including rap music. Not sure why someone would want sound that "rattles" which sounds like more baffling is needed, but the reproduction is accurate enough for classical, pop, jass, d&b, rock and rap. If what you hear is important to you and your passengers, and you have a stock system, this is an instant upgrade. With only 15amps needed, some truck, SUV and van rear accessory outlets that have higher amperage (the same that can power small fridges, etc) may allow you to connect directly to those accessory ports instead of having to wire all the way to the battery. I did this with mine because the rear accessory supplies 12v at 20 amps fused.
1 out of 1 people found this helpful
Was this review helpful?    Yes | No
 
5 out of 5

NIce Thump

Written By JAM, Atlanta, GA on Monday, April 25, 2011
 
Nice well needed low end in an RX-7 convertible and it packs punch in a small
package.
Was this review helpful?    Yes | No
 
5 out of 5

awesome

Written By gmo, hilo, hi on Monday, April 25, 2011
Crutchfield Customer Review (What's this?)
Crutchfield Customer Review

The reviewer purchased this item from us, verified by the email address on the order.

 
Awesome! Can't believe the amount of solid base that this little box produces
at any volume!
Was this review helpful?    Yes | No
 
5 out of 5

2010 Jeep Wrangler

Written By Cal, Northern VA on Monday, April 11, 2011
Crutchfield Customer Review (What's this?)
Crutchfield Customer Review

The reviewer purchased this item from us, verified by the email address on the order.

 
After replacing my head unit and stock paper cone speakers in my jeep, I knew my
system was missing something. This woofer was the missing piece. Slides
perfectly under the passenger seat with a relatively easy install (had never installed
a woofer before) and WOW what a difference this thing makes. My system is
complete now and sounds 100x better than stock.

This sub won't rattle your ribcage or shake your windows (well maybe) like a 12''
sub, but when you crank this baby up you get some great sound and power for its
size. Nice clean, tight bass that fills out the bottom end perfectly. If you want to
wake your neighbors up when you come home, look somewhere else. But for those
of us who want to add a perfect amount of bass (and sometimes excessive amount
of bass) to your bass-shy system, this is the product for you!!

Don't hesitate, buy it now! I was on back order for nearly two months last time
before I got the subwoofer!
1 out of 1 people found this helpful
Was this review helpful?    Yes | No
 
5 out of 5

97 GMC Yukcon

Written By 911wrench, Michigan on Sunday, April 10, 2011
Crutchfield Customer Review (What's this?)
Crutchfield Customer Review

The reviewer purchased this item from us, verified by the email address on the order.

 
I needed something small to fit under the seat of my Yukon. This sub combo did
the trick. Fits under the passenger front seat great. Has great sound and power.
Sounds great from all seating positions. More than enough power to fill the big
space the factory speakers were missing.
Was this review helpful?    Yes | No
 
5 out of 5

Another 5-star review for the pile. It definitely earns it.

Written By Archpope, Orange County, CA on Tuesday, April 12, 2011
Crutchfield Customer Review (What's this?)
Crutchfield Customer Review

The reviewer purchased this item from us, verified by the email address on the order.

 
This sub fit under the driver's seat of my PT Cruiser perfectly. Because of that, I am
not sacrificing space at all. I had a professional install it, but in retrospect, I
probably could have handled it myself. The sound is exactly what I was looking for.
it takes the load off the rest of the speakers without being overbearing. I usually
keep the bass knob around 30%, which is just perfect to complement music
without drowning it out. And to call the price 'reasonable' is an understatement,
especially with Crutchfield throwing in the wiring kit and shipping.
1 out of 1 people found this helpful
Was this review helpful?    Yes | No
 
5 out of 5

Sound Ordnance™ B-8PT

Written By CM, San Antonio, TX on Monday, April 18, 2011
Crutchfield Customer Review (What's this?)
Crutchfield Customer Review

The reviewer purchased this item from us, verified by the email address on the order.

 
Extremely Impressed!!
I installed this in my 1999 Ford Ranger XLT Regular Cab behind the driver's seat
and it produces the fill that was desperately needed. I was skeptical at first
because it is an 8in sub but I will tell you that it sounds better than any
other 8in that I have messed with. It requires a very small footprint which
makes it perfect for fitting in a cab that has no extra space to give.
2 out of 2 people found this helpful
Was this review helpful?    Yes | No
 
5 out of 5

Love it

Written By stevencam69, Queen's N.Y. on Sunday, April 17, 2011
Crutchfield Customer Review (What's this?)
Crutchfield Customer Review

The reviewer purchased this item from us, verified by the email address on the order.

 
It works great, Good size. Good price, And I do not have to turn it up all the way for it to work nice.
Was this review helpful?    Yes | No
 
1-10 of 407 items >>

Learn more about Powered Subwoofers

Learn more about Powered Subwoofers

Subwoofer Shopping Guide

Subwoofer Shopping Guide

Ken Nail
7/13/2008
based on 260 ratings (19 comments)
 

Subwoofers are speakers dedicated solely to reproducing low frequencies. No matter what kind of music you like, or at what volume you listen to it at, they can be a crucial part of your overall...

 
Video: How to Choose a Subwoofer

Video: How to Choose a Subwoofer

Ken Nail
9/14/2010
based on 471 ratings (23 comments)
 

The first step to choosing a subwoofer actually begins with the enclosure and how you want the sub to perform. In this video we'll tell you about the different types of subwoofer enclosures...

 
Better car audio, Tip #9: Add a sub and hear what you've been missing

Better car audio, Tip #9: Add a sub and hear what you've been missing

Jim Richardson
2/24/2009
(1 comment)
 

A good subwoofer will bring the bottom octave of your music back into proper balance, so you'll hear familiar tunes in a whole new light. It'll take a load off your full-range speakers too,...

 
Subwoofer Enclosures

Subwoofer Enclosures

Crutchfield Writing Team
3/12/2012
based on 320 ratings (58 comments)
 

The type of bass you get from your component subwoofer doesn't depend on the woofer alone. You'll need a strong, tightly constructed enclosure for optimum subwoofer performance.

 
Subwoofer Wiring Diagrams

Subwoofer Wiring Diagrams

Buck Pomerantz
12/12/2011
based on 1268 ratings (585 comments)
 

With the wide variety of subwoofers available, it's easy to get confused about the best way to wire up your system. These wiring diagrams will help you find the configuration that'll get the most...

 

Accessories

Things you'll need

Wiring Kits
Wiring not included with the sub. Kits make it easier and less expensive to install your new powered subwoofer.
Rockford Fosgate RFK10
10-gauge amplifier power wiring kit
$29.99
In Stock
 
 
Rockford Fosgate RFK10i
10-gauge amplifier power and signal wiring kit
$49.99
In Stock
 
 

Accessories we recommend

Dynamat
Dynamat helps reduce ambient road noise and your vehicle's "rattles," making it easier for you to hear your music better. Easy to install.
Dynamat Dynaliner
One 54" x 32" sheet (1/8" thick)
$69.99
In Stock
 
 
Dynamat 19100
License Frame Kit
$14.99
In Stock
 
 
Dynamat Xtreme Wedge Pack
1 sheet, 4 square feet
$39.99
In Stock
 
 
Dynamat Xtreme Trunk Kit
5 sheets, 20 square feet
$169.99
In Stock
 
 
Dynamat SuperLite Tri-Pak
Triple package — 3 sheets, 12 square feet (Model #10612)
$69.99
In Stock
 
 
Show more items
Speaker Wire
It's critical to have good wire, and none is included with the sub.
StreetWires 12-gauge Ultra Cable™ Speaker Wire
Blue/copper jacket — priced per foot
$1.00
In Stock
 
 
StreetWires 14-gauge Ultra Cable™ Speaker Wire
Blue/copper jacket — priced per foot
$0.75
In Stock
 
 
StreetWires 14-gauge Super Cable™ Speaker Wire
Translucent blue jacket — priced per foot (Clear)
$0.99
In Stock
 
 
StreetWires 16-gauge Super Cable™ Speaker Wire
Blue jacket — priced per foot
$0.40
In Stock
 
 
Stinger PRO Series 16-gauge Speaker Wire
Black jacket — priced per foot
$0.30
In Stock
 
 
Show more items

Extras

Test Discs
Tune your system like a pro with these test discs.
Autosound 2000 CD Set
$69.95
In Stock
 
 
Autosound 2000 Disc One
Low Frequency Test CD (Disc One)
$19.99
In Stock
 
 
Autosound 2000 Disc Five
System Demonstration — Test CD
$9.99
In Stock
 
 
Professional Installation
Get more info about having your new sub put in by a qualified professional in your area.
InstallCard: Amp or Equalizer
Prepaid professional amplifier or EQ installation
 
Stereo Patch Cables
If you are using the pre amp inputs on this powered sub, better quality cables will improve the sound.
StreetWires ZeroNoise 3 Stereo Patch Cables
Available in two different lengths (19.7 feet)
$29.99
In Stock
 
 
StreetWires Zero Noise 5 Stereo Patch Cables
High-performance cables with superior noise rejection (16.4-foot)
$29.99
In Stock
 
 
StreetWires Zero Noise 7 Stereo Patch Cables
Available in 5 different lengths (16.4 feet)
$54.99
In Stock
 
 
 
Add selected to cart
 

For a more in-depth review and enhanced detailed information on the Sound Ordnance™ B-8PT, please visit the Crutchfield website product page (/ISEO-rccbcspd/p_777B8PT/Sound-Ordnance-B-8PT.html ).

Recommended Accessories See more accessories

Your featured item

Sound Ordnance™ B-8PT
Sound Ordnance™ B-8PT
120-watt compact powered subwoofer
$199.99
In Stock
 
 

Wiring Kits

Rockford Fosgate RFK10
10-gauge amplifier power wiring kit
 
$29.99
In Stock
 
 

Dynamat

Dynamat Dynaliner
One 54" x 32" sheet (1/8" thick)
$69.99
In Stock
 
 

Speaker Wire

StreetWires 12-gauge Ultra Cable™ Speaker Wire
Blue/copper jacket — priced per foot
$1.00
In Stock
 
 

Protect your gear with an extended warranty

Add 3 Year Warranty
Square Trade Warranty
$27.99
In Stock
 
 
 
Add selected to cart
 
Sound Ordnance™ B-8PT