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Sound Ordnance B-8P

80-watt powered bandpass subwoofer

Item #: 777B8P

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320 Reviews

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The Sound Ordnance B-8P powered bandpass sub comes ready to add some dynamic thump to your ride — just wire it up for power and secure it in your trunk or cargo area. This rugged box houses an 8" sub that delivers plenty of firepower, thanks to its polypropylene cone, treated foam surround, and stamped steel basket. The B-8P's built-in amplifier powers the sub with 80 watts RMS for surefire response, and you can use the variable low-pass filter and phase control to tune the bass barrage for your vehicle.

The handsome bandpass enclosure features 5/8" medium-density fiberboard construction for enduring strength, while a clear acrylic window lets you see the woofer in action. Inside the chamber, four LED lights provide visual enhancement to go along with your bass. The durable black carpet cover protects the B-8P and your vehicle from nicks and scrapes. And the Sound Ordnance logo gives you the added assurance of a 3-year warranty to go with your investment.

Product Highlights:

  • powered bandpass subwoofer
  • 8" woofer
  • built-in 80 watts RMS amplifier (160 watts maximum)
  • acrylic front window
  • frequency response: 46-150 Hz
  • variable low-pass crossover (70-200 Hz)
  • variable phase control (0-180°)
  • preamp- and speaker-level inputs
  • 8- or 10-gauge wiring (not included) recommended
  • dimensions: 14-7/8"W x 11-1/8"H x 14-7/8"D1 x 10-1/8"D2
  • warranty: 3 years
  • Our 60-day money-back guarantee

Who needs a powered subwoofer?

To produce bass, you need a sub, an enclosure, and an amplifier, and it can be little tricky to match them all up. A powered sub eliminates all the hassle, as the manufacturer designs the enclosure to house the sub and amp together. This all-in-one solution is especially useful in smaller vehicles, where there's no room to mount a separate amp, or in any vehicle where you need every bit of cargo space. Powered subs range from small, flat boxes that fit under your seat to larger boxes that go in your trunk.

Sound Ordnance™ B-8P Reviews

Average Customer Review:

320 reviews
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Solid bass from a small enclosure

Written By Joe R., New York on Saturday, October 31, 2015

Crutchfield Customer Review (What's this?)

I installed this unit in my 1999 Ford Explorer2DR Sport, to compliment the new JVC stereo and speakers I had also purchased from Crutchfield. The bass from this very reasonably priced unit fills my interior, but does not rattle my body panels. I am very satisfied with the performance, quality, value and ease of installation. I would buy this subwoofer again and have already recommended it to a friend.

Pros: Ease of installation, big bass from a small unit that does not take over all your free space.

Cons: None so far.


Written By tim, Ohio on Saturday, October 10, 2015

Crutchfield Customer Review (What's this?)

this is a grate sub for a small truck and it has good sound qulity ilove it

Pros: is all a round a grate sub

Cons: i can,t thank of eny !!!!

Great Sub

Written By HISPEED, Oklahoma on Tuesday, September 29, 2015

Crutchfield Customer Review (What's this?)

Had to replace Sound Ordnance B-8PTD didnt have enough bass for my Mazda CX7. So I got this as a replacement, couldnt be happier. Way better sub. If your looking for a powered sub and u have the room, buy this sub

Pros: Big bass, easy setup, great price

Cons: None

Great sound for the money.

Written By Paul, South Carolina on Friday, September 04, 2015

Crutchfield Customer Review (What's this?)

This little thing packs a punch! No it isn't as window rattling as most are looking for, but I just hooked this up[ in the 99 Firebird and couldn't be happier. Just enough thump to be noticed, but not obnoxious. It may take a little time to adjust your individual settings, but all in all i couldn't be happier. Putting the other one in the suburban tomorrow.

Pros: great price, smaller size, fits most anywhere.

Cons: none at this time. for the price, you can't go wrong!

Good with stock radio. GREAT with aftermarket receiver!!!!

Written By Jon W, Michigan on Sunday, August 02, 2015

Crutchfield Customer Review (What's this?)

I bought this sub to add to my stock monsoon system in my 2006 Grand Prix. I got the audio signal through a line out converter. I really liked the bass that is produced but sometimes the bass seemed distorted. A couple months later, I got an aftermarket receiver for my birthday. I installed the new receiver and got rid of the line out converter and connected the sub directly to the output on the back of the receiver. All I can say is WOW!!!! The bass that is now produces is absolutely amazing!!! No more distorted bass and it sounds great!! I would recommend this sub to anyone!!

Great bass, great price

Written By Dave B, Chicopee,MA on Saturday, July 04, 2015

Crutchfield Customer Review (What's this?)

I purchased this to give some low end to the sound in my full size work van. I was very pleased with the depth in the bass. I was able to get the sound I wanted with minimal adjustments.

Pros: Great price for the sub! Great sound!

Cons: This was placed behind the passenger seat. Not a lot of wiggle room due to cage behind seat. If it was a little smaller in depth,it would allow the seat to be moved back a little more.

Stunning Performance and Vaule!!

Written By Drew ABQ, Albuquerque NM on Wednesday, June 17, 2015

Crutchfield Customer Review (What's this?)

I don't not usually buy audio electronics online, I perfer to listen buy. But I couldn't be happier with my purchase!! The sub arrived in 2 days!!! The sound that this little monster generates is simply amazing for $119!! Solid powerful bass that is surprisingly deep and accurate. In a well made tidy package! Don't hesitate, just buy it! It's one of the best purchases I have ever made!

Pros: Deep strong bass, small size and we'll made!

Cons: None as of yet.

Big Sound in a Small Package

Written By DcFX, WI on Sunday, June 14, 2015

Crutchfield Customer Review (What's this?)

Great Product, Hits much harder than I ever expected it to. If your looking for a small car friendly system this would be it.

Pros: Great sound in a little package

Cons: None

Good product at a good price

Written By Anonymous, elko nv on Monday, June 08, 2015

Crutchfield Customer Review (What's this?)

Good sub for a good price. Hits good and doesn't drag down the car battery system.

Big sound in a small package.

Written By Tony, Beckley, WV on Wednesday, June 03, 2015

Crutchfield Customer Review (What's this?)

Perfect powered sub to enhance a system.

Pros: Great size for small trucks and cars with little space.

Little boom boom

Written By Uwilldo, Keswick, IA on Monday, May 25, 2015

Crutchfield Customer Review (What's this?)

Bought this to fill in lows on a BMW E46 4dr and save trunk space. It does the job with a great quality box... Not exactly gonna rattle the dentures out of my neighbors but sounds good. Maybe if I hook it up to an aftermarket radio it will come to life but for now I'm happy with it.

Pros: Takes up very little trunk space Good Quality box Easy to hook up Sounds good without any distortion

Cons: Packs bout as much punch as a factory sub

best bang for your buck

Written By kkc123, Hawaii on Friday, April 17, 2015

Crutchfield Customer Review (What's this?)

for an 8 inch subwoofer i wasnt expecting this much bass. it blew me away it will hit loud enough at full volume to shake the car. will recomend to anyone who wants bass but doesnt want the whole neighborhood to hear you coming

Pros: only 120$$ small box means more trunk space

Cons: none awesome product


Written By Joah, Jasper, AL on Thursday, April 16, 2015

Crutchfield Customer Review (What's this?)

I put the B-8P in my son's 02 Tacoma. It really sounds good and u can feel it.

Great woofer

Written By Bryson, Lincoln ne on Saturday, April 11, 2015

Crutchfield Customer Review (What's this?)

This thing kicks pretty hard for an 8". Great value. High quality. Made my stock audio in my 00 accord sound great. Turned the hpf setting on my stereo on so that the regular speakers don't play bass. Sounds great after that. Very happy with my purchase

Cons: None

brings stereo listening to life

Written By Steve, visalia california on Tuesday, March 17, 2015

Crutchfield Customer Review (What's this?)

I bought this for my wifes 07 camry and she loves it! It is the heart of the system bringing it to a level of a high end stock stereo. Cant beat the price and easy to install for the diy person. I highly recommend this sub if you want a little bump in your sound stage to bring it to life. It hits pretty hard for a self powered sub. No complaints here.


Written By antonio c, manville new jersey on Monday, March 09, 2015

Crutchfield Customer Review (What's this?)

It sounds really good clear and loud . I definitely will recommend to a friend