Sound Ordnance B-8PT

120-watt compact powered subwoofer

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Item# 777B8PT

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Overview
Details
Staff Reviews
Customer Reviews
Category Info
Accessories

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.

Our take on the Sound Ordnance™ B-8PT

by Dominic Devito

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.

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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

Shop all Sound Ordnance Powered Subwoofers

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

Features and specs chart | What’s in the box? | In-depth notes

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...	13-13/16"
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

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

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Reviews for the Sound Ordnance™ B-8PT

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4 Star: (106)

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4 out of 5

Not bad at all

Written By Sean, Ocean Park, ME on Friday, May 17, 2013

Crutchfield Customer Review (What's this?)

Like a lot of the reviews said. Not going to blow out any windows, but rounds out the sounds nicely. I would buy it again, good value. Installed in a soft top wrangler.

Pros:

Good sound, small enough to fit under the seat

Cons:

None yet

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5 out of 5

Soun Ordnance B-8PT

Written By SWRig, Iowa on Thursday, May 16, 2013

Crutchfield Customer Review (What's this?)

Fits perfectly behind bech seat in 88 Chevy S-10 Pickup! Plenty of power and sound; Significantly helps the rear pillar speakers.

Pros:

Small, powerful; Has remote bass level control.

Cons:

None!

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5 out of 5

Sound Ordnance™ B-8PT

Written By Anonymous, california on Thursday, May 16, 2013

Crutchfield Customer Review (What's this?)

very good subwoofer, Crutchfield is very good service and on time delivery, compact but powerful I install it in my tundra it is working very good perfect sport for it.

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2 out of 5

Mediocre

Written By Nooly, Iowa on Tuesday, May 14, 2013

Crutchfield Customer Review (What's this?)

I purchased this unit based on the positive reviews, and for the ease of installation of a powered subwoofer. This product sounds ok when there's no road noise, but once you get moving it's hard to hear without cranking it up. The problem then is you have a noticeable amount of distortion. The product fit underneath my passenger seat, which made installation fairly simple. Unfortunately, the end result is what I would consider less than satisfactory.

I purchased this unit so I wouldn't have to build a custom enclosure for my application. I almost wish now that I had gone a different direction.

Pros:

Easy installation

Cons:

Too much distortion when it's turned up enough to hear it over the road noise

1 out of 2 people found this helpful

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5 out of 5

GREAT addition

Written By martinfan30, Carson City, NV on Monday, May 13, 2013

Crutchfield Customer Review (What's this?)

VERY happy with the bass this unit puts out for my extended cab silverado. Doesn't shatter windows but makes my metal and rock sound like it should. Very happy and highly recomend.

Pros:

Sound, size

Cons:

NONE for me

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5 out of 5

Great Boom for the Buck

Written By TimK, Coatesville, PA on Monday, May 13, 2013

Crutchfield Customer Review (What's this?)

I bought this powered sub mainly because of price and size. It is connected to the factory JBL sound system in my 2004 Toyota Tundra Double Cab and really packs a punch. I installed it under the driver's seat and was able to fit it in w/o losing the rear-mounted heat ducts which seems to be pretty common w/ this location. The installation was a snap, but I couldn't have done it w/o the help of EdB in Tech Support. He sent me a wiring diagram and pics of my interior that allowed me to tap into my factory-installed amp behind the back seat, instead of the head unit behind the dash. That alone saved me TONS of time and helped me get it done much quicker than I had expected. I've yet to "tune" the sub correctly, but I'm definitely happy w/ the results I'm already experiencing!

Pros:

Price, size, bang for the buck

Cons:

None that I've experienced

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5 out of 5

perfect size for 2011 ford f150 Lariat super crew

Written By Bets, minnesota on Saturday, May 11, 2013

Crutchfield Customer Review (What's this?)

this the perfect size to fit under your super crew under the back seat,gives off just enough bass without rattling windows and sounds good and still have the stock radio i also replaced my 4 factory speakers with some 2 way alpine speakers they sound great,i had all this installed at the dealer for a clean look and a huge improvement over the the stock junk

Pros:

just enough bass and doesn't take up much room and it hides easily

Cons:

none

1 out of 1 people found this helpful

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1 out of 5

Seriously Confused About the Positive Reviews

Written By Christopher, United States on Thursday, May 09, 2013

Crutchfield Customer Review (What's this?)

Ok, wait, no, this is SOOO NOT OK... Do yourself a favor and Look Elsewhere for something different - This S.O. Sub is just that nothing but - SUB-STANDARD

Scenario: - Sony BT4000P Aftermarket Head Unit w/ Factory Speakers (not the Rockford System) in a 2006 xTerra - Head Unit has option for "Rear Base Enhancement" which essentailly converts your rear speakers through sound processing into pseudo-subs - obviously on a basic oem factory speaker system this doesn't do much and you tend to bottom out your rears - if not blow them - though it does give a nice thump at low volumes - Head Unit also has full control over Dedicated SUB-PreAmp Out - including gain control, phase control & cross-over points

So, you're wondering: "Why is he writing about the head unit?"

The RBE option with factory speakers (no actual sub) puts out more base then this sub does when it is totally maxed out and everywhere in-between - except at very low listening (volume) levels.

I bought this to replace a VERY old Kenwood 8" Self Powered (30w RMS - 60w Max) Sub Tube which I recently installed in my system which had 20x the bass but sadly due to its age the surround disintegrated from dry-rot but even with the Completely Blown Sub it has more punch then this...

Pros:

Not sure there are any... Nice Form Factor?

Cons:

Might as well not exist - ZERO - Added bass except at max settings at very low volumes...

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5 out of 5

Perfect for my Mack daycab truck behind the seat.

Written By Anonymous, Nebraska on Monday, May 06, 2013

Crutchfield Customer Review (What's this?)

Better than I expected.

Pros:

Small footprint and all connections are in one location.

Cons:

No mounting holes, tabs, or brackets included.

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5 out of 5

Written By Mark R, Houston, TX on Saturday, April 27, 2013

Crutchfield Customer Review (What's this?)

The unit first of all came a day early which was awesome. This is the second order in a row that came early from these guys. The sub was exactly as described and has worked great. I have 2002 Mitsubishi Gallant and it really balanced out my upgraded factory speakers and head unit. The front speakers are 5 1/4's and the back are 6 x 9's. I set the crossover point for the sub woofers to just under 200 Hz and the other speakers to just above 180 Hz. The reason I mention this is because I spent a lot of time trying to find the 'peak' crossover point. This works really well for all types of music.

Pros:

Beautiful bass and perfect size

Cons:

This is an 8" sub woofer that works great in the confined space of the car. If you want the sound that makes your teeth rattle out of your head and annoy other drivers, you might want to use something else.

2 out of 2 people found this helpful

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5 out of 5

Great for filling in the bass

Written By Brendan, MA on Friday, April 26, 2013

Crutchfield Customer Review (What's this?)

Easy to install under the back seat of my 06 F150 crew cab. Fills in the bass really well with my Pioneer App radio and RF door speakers. Won't rattle the windows but fills out the sound nicely. Love it!

Pros:

Small, compact, easy to install.

Cons:

None if you don't want to rattle the windows!

1 out of 1 people found this helpful

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5 out of 5

Great little sub package

Written By Patrick, Mesa, AZ on Monday, April 22, 2013

Crutchfield Customer Review (What's this?)

Great little sub for my Toyota Tacoma. It filled in the missing lows and hits great for its size. Perfect for my truck. Took a little time to tweek the sound but definitely worth it.

Pros:

Great for small applications

1 out of 1 people found this helpful

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5 out of 5

SO powered sub

Written By Don, Brigham City. UT on Sunday, April 21, 2013

Crutchfield Customer Review (What's this?)

I installed the Sound Ordinance B-8PT in my boat. I had limited space and that is why I chose it. The install was simple and the results are amazing. I highly recommend this product!!

Pros:

Simple install. Great sound. Very adjustable.

Cons:

Instruction booklet a little vague

1 out of 1 people found this helpful

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4 out of 5

Very good little sub

Written By BrettM, Fremont CA on Sunday, April 21, 2013

Crutchfield Customer Review (What's this?)

If you are looking for a sub that does not take up too much space then this sub is for you. It fills in the missing bass that my component speakers can't produce. It is just enough bass for me but for some it would not be enough...it is not a 10" or 12" seale box base but its not bad

1 out of 1 people found this helpful

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4 out of 5

Way more then what I expected.

Written By Mega, Harrisonburg, Va. on Saturday, April 20, 2013

2012 F350 Standard Cab 4x4. First off like others have said if you want to shatter windows this isn't for you. However in the small standard cab not alot of area to fill. I was supprised for an 8" it does real well. Was the perfect filler for a stock system to get some bottem end. I placed it under my seat wish it had some kinda of mounting system other then velcrow.

Pros:

Better then expected for size and power, Great for vehicles for litte to no free space.

Cons:

No real mounting options, Took off one star for no mounting options. Other wise pretty nice all in one.

1 out of 1 people found this helpful

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1-20 of 500 >>

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Rated 5-stars by consumers

For a more in-depth review and enhanced detailed information on the Sound Ordnance™ B-8PT, please visit the Crutchfield website product page (/S-pkNeeE57ve0/p_777B8PT/Sound-Ordnance-B-8PT.html ).

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Sound Ordnance™ B-8PT

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Remote
Remote control knob

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Sound Ordnance B-8PT

120-watt compact powered subwoofer

Item# 777B8PT offer details

Review Summary

By buying this product you'll earn up to 128 Rewards points.

Who needs a powered subwoofer?

Our take on the Sound Ordnance™ B-8PT

by Dominic Devito

Highlights:

Shop all Sound Ordnance Powered Subwoofers

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

Features and Specs

Product Research

Our Product Research Team

Features

Controls

Connections

Product Reviews

Reviews for the Sound Ordnance™ B-8PT

Average Customer Review:

Review this product:

Crutchfield Video Review Guidelines

Filter by rating:

Not bad at all

Soun Ordnance B-8PT

Sound Ordnance™ B-8PT

Mediocre

GREAT addition

Great Boom for the Buck

perfect size for 2011 ford f150 Lariat super crew

Seriously Confused About the Positive Reviews

Perfect for my Mack daycab truck behind the seat.

Best compact sub out there

small package, large sound

Fits perfect in front of Passenger Footwell 2011 Expedition

Rock On

The Boomin' System

Sound Ordnance Subwoofer

Great for filling in the bass

Great little sub package

SO powered sub

Very good little sub

Way more then what I expected.

Accessories

Add accessories for the Sound Ordnance™ B-8PT

Wiring not included with the sub. Kits make it easier and less expensive to install your new powered subwoofer. See all categories & accessories

Smart people protect with SquareTrade- The best warranty at the best price

Your featured item

Single-amp Wiring Kits

Dynamat

Protect your gear with an extended warranty