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Sound Ordnance B-8PTD

125-watt compact powered subwoofer

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  • Sound Ordnance B-8PTD

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    Remote

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Item# 777B8PTD offer details

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Sound Ordnance

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-8PTD

by Buck Pomerantz

Fill your vehicle with bass, not equipment

Want to put some bass to your vehicle without a lot of fuss? Sound Ordnance's B-8PTD powered subwoofer is the latest version of the B-8PT, one of our all-time best-selling compact powered subwoofers. Sound Ordnance built this new version to perform even better than its predecessor, putting a cool-running 125-watt amp and a rugged aluminum 8" sub in an extremely compact, solid ABS plastic enclosure,so you get years of bass satisfaction. This all-in-one unit frees you from having to deal with a separate sub, amp, and enclosure, saves you cargo space, and simplifies your wiring requirements. Whether it's mounted under your car seat or in an out-of-the-way location in the cab of your truck, this little workhorse will surprise you with its impressive bass and its ability to mesh perfectly with the rest of your system.

Sound Ordnance B-8PTD powered sub

This compact sub delivers strong bass without taking up much space.

Big bass from this tough little sub

A 125-watt RMS Class D amplifier powers the sub and lives on a compact circuit board mounted inside the enclosure. The sub's stiff 8" aluminum cone holds its shape even when playing hard, helping to keep the lowest notes clean, and ensuring a long life for the sub. You can adjust the low-pass filter, variable phase control, and bass boost to get the B-8PTD sounding perfect in your vehicle. Preamp- and speaker-level inputs allow convenient connection to just about any system, even a factory stereo.

Sound Ordnance B-8PTD powered subwoofer

The molded ABS enclosure houses a 125-watt amp and a tough little 8" sub.

Good design helps

The B-8PTD's tough outer casing of molded ABS plastic serves as the sub's sealed enclosure and can withstand some pretty extreme internal pressure changes with no reverberating or buzzing. Sound Ordnance conveniently located the neat, clean, easy-to-understand controls on one side, opposite all the connections, so you won't get tangled in wires as you tune your bass. The control knobs and switches aren't recessed, so you can make adjustments by hand, without the need for a tiny screwdriver.

Highlights:

  • powered subwoofer with heavy-duty ABS plastic enclosure
  • 8" woofer with aluminum cone
  • built-in Class D amplifier (125 watts RMS/250 watts peak)
  • 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 included
  • 8- or 10-gauge wiring (not included) recommended
  • dimensions: 9-1/8"W x 3-1/8"H x 13-5/8"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

    Features and Specs
    General
    Enclosure Type
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    Sealed
    Finish Material
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    Metal/plastic
    Grille
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    Metal
    Connector Type
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    RCA/Molex
    Bi-amp Inputs
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    No
    Woofer Size (inches)
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    8
    Woofer Material
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    Aluminum
    Passive Radiator
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    ---
    Width
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    9-1/8"
    Height
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    3-1/8"
    Depth
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    13-5/8"
    Second Depth
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    N/A
    Parts Warranty
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    3 Years
    Labor Warranty
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    3 Years
    Specifications
    Frequency Response
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    40-200
    Amplifier Power (RMS)
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    125 watts
    Maximum Wattage
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    250 watts
    Sensitivity
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    88 dB
    Impedance
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    N/A
    Second Voice Coil Impedance
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    N/A
    Crossover Point
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    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 6-1/8" x 3/4" Self-adhesive "Hook" strips (half of the Hook and Loop combination)
    • One 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-8PTD amplified subwoofer features a 125-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 puts control of your subwoofer output level within easy reach. The remote can be mounted using the attached double sided tape or the included self-tapping screw. The dimensions are:

    • Width: 1-3/16"
    • Height: 1-1/4"
    • Depth: 1-7/8" (2-1/2" including the knob)

    Mounting: The subwoofer, with its height just over 3", 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; rotary knob, 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 the included harness

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

     

    Product Reviews

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    Reviews for the Sound Ordnance B-8PTD

    Average Customer Review:

    11 people say:

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    Showing: 1-11 of 11
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    5 out of 5

    Great Product!!!

    Written By DevilDog81, MD on Monday, May 20, 2013
     
    Excellent quality, great sound, very reliable.
    Pros:
    Price, quality, sound.
    Cons:
    None.
    Was this review helpful?    Yes | No
     
    4 out of 5

    Small package, solid sound

    Written By Jeremy, Kent, WA on Thursday, May 16, 2013
    Crutchfield Customer Review (What's this?)
     
    Quality item that does what it is supposed to. It fills in the low end for a factory system without compromising space.
    Pros:
    Small size, price, quality.
    Cons:
    Limits due to size limitations. Velcro as only attachment, but it works well.
    Was this review helpful?    Yes | No
     
    4 out of 5

    Great Add-On

    Written By Craig, Lexington, KY on Thursday, May 09, 2013
    Crutchfield Customer Review (What's this?)
     
    I wanted to add a little kick to my Jeep Wrangler. I replaced the dash and roll bar speakers with some Kickers. Though a good upgrade from the factory system still not what I wanted. A Crutchfield adviser recommend this unit. I was a little leery of an all in one unit but this certainly fit the bill. It's not going to vibrate the car next to you (nor did I want it to) but it does provide a great sound experience even with the top down.
    Pros:
    Great sound, easy install.
    Was this review helpful?    Yes | No
     
    3 out of 5

    Sound Ordnance B-8PTD

    Written By Anonymous, Lakes region, ME on Saturday, May 04, 2013
    Crutchfield Customer Review (What's this?)
     
    Nice little sub. I wasn't blown away, but it provides nice sound for my Honda Ridgeline. It will need to be worked in.
    Pros:
    Small and compact.
    Cons:
    Sounds boxy, not super clear.
    Was this review helpful?    Yes | No
     
    5 out of 5

    Very nice sub in small package

    Written By 08DodgeRam, Charlotte, NC on Thursday, May 02, 2013
    Crutchfield Customer Review (What's this?)
     
    I purchased the B-8PTD as "scratch and dent" but I think the only issue was with the box itself. The unit arrived in perfect condition. I installed under rear bench seat of my 08 Dodge Ram. Running the power leads and signal leads down each side of the door trim was easy. The installation took about 2 hours total. It works very well with my Kenwood HU and really fills in the bass below 100hz with my Polk speakers. I prefer the "PTD" model over the "PT" due to the addition of a Class D Mosfet Amp. This is NOT a unit for those who like to show off at "loudness" competitions, but if you want to suppliment your system with a nice low-end for great overall sound quality, then this is the unit.
    Pros:
    Great sound in small, easy to install package.
    Was this review helpful?    Yes | No
     
    2 out of 5

    Disappointing

    Written By Justin, Indiana on Thursday, April 25, 2013
    Crutchfield Customer Review (What's this?)
     
    I ordered one of these based off of all of the good reviews. After hooking up the speaker it sounded decent (it completely misses notes under 150hz so if you like rap don't get it) but anytime I turned the car on or off it produced and extremely loud POP. Checked the ground, remote turn on wire, etc with no luck. Called Crutchfield and they said it was defected so they sent me another one and it also did the same thing. Finally, they recommended the kicker 11hs8 and shipped it to me. I installed this one using the existing wiring and WOW! No popping noise and It actually produces unbelievable low notes (while not as loud as my JL 12W3, it sounds just as good). Long story short: if you aren't picky and get a unit that isn't defected, the sound ordnance sounds okay for the money but if you want something for all types of music including rap, I would recommend the KICKER!!!
    Pros:
    plays higher bass pretty well
    Cons:
    Annoying POPPING sound and can't hit low notes at all
    Was this review helpful?    Yes | No
     
    4 out of 5

    Sound ordnance B-8ptd

    Written By Anonymous, Lynnwood, WA on Sunday, March 31, 2013
    Crutchfield Customer Review (What's this?)
     
    This is a great product for a toyota tacoma. I have a 4 door has basically no room for a big box so I started looking into these. I'm glad I did! Easy installation.
    Pros:
    Easy install, love the bass adjustment nob. Sounds great!
    Cons:
    No cons as of now!
    1 out of 1 people found this helpful
    Was this review helpful?    Yes | No
     
    5 out of 5

    Looks like an 8" ... Sounds like a 10!

    Written By Toddman, N.Tx on Friday, March 29, 2013
    Crutchfield Customer Review (What's this?)
     
    I upgraded the stereo in my '00 Sierra extended cab when my speakers started to go out a few years back. I added a Pioneer head unit with Infinity components in the front doors & Infinity plates in the rear doors. I had been planning more upgrades, but never got around to it. It sounded better than stock, but it was missing the bass. I have been looking for a good solution to my lack of bass, but I didn't want something that was gonna take up a lot of space. I finally found the perfect solution. I added an Alpine KTP-445U "Power Pack" to power the door speakers & the Sound Ordnance B-8PTD to fill in the bass. I never thought I would get the quality of sound I'm getting from such a small powered subwoofer. It fits under the backseat without taking up a lot of space & you wouldn't even know it's there except for the awesome sound it produces.
    Pros:
    All-in-one COMPACT solution for your lacking bass problem Plenty of bass in a small space Sounds larger than it actually is
    Cons:
    Only for the neighbors lol jk
    2 out of 2 people found this helpful
    Was this review helpful?    Yes | No
     
    5 out of 5

    Completely Impressed!

    Written By Jprscottmb, Little Rock, AR on Sunday, March 17, 2013
    Crutchfield Customer Review (What's this?)
     
    I have a '12 Jeep Wrangler Rubicon Unlimited & was looking for something to beef up my factory system. I hooked it up in about 2 hours (mostly b/c of kids) and put it under the driver's seat. I am totally impressed!!! Lots of sound for such a small speaker! I would totally advise people to buy this speaker!!
    Pros:
    Major sound!! Small size!
    Cons:
    You have to hook it up! lol
    Was this review helpful?    Yes | No
     
    4 out of 5

    Big sound little package

    Written By Dluedke, Ogallala on Tuesday, March 05, 2013
    Crutchfield Customer Review (What's this?)
     
    This is a nice compact unit with a lot more sound then I expected form such a small package. Buy no means is it a window vibrator but it dose provide a good full sound. I did have some problem getting it to work in the high input auto on position but in the low input remote on it works fine. It did take some time and tweaking to get it to sound seem less with the factory system in my truck but now that it is it sounds great. One thing that I like is that it does have a lot of adjustments so you can tweak it. One thing I didn't like is the remote volume control... I like to hide things and it is too big to tuck away and hide.
    Pros:
    Small compact full sound from low to medium volume
    Cons:
    Falls off at high volume. Large volume control
    2 out of 2 people found this helpful
    Was this review helpful?    Yes | No
     
    5 out of 5

    Sound Ordnance B 8 PTD Powered Subwoofer

    Written By wudbuchr, West Tennessee on Sunday, February 24, 2013
    Crutchfield Customer Review (What's this?)
     
    Installed this and a Pioneer AVH P8400BH head unit in my 2012 Tacoma Access Pre-Runner. Installation was a breeze (placed it on the console between the back seats). It was really more than I expected! Pushing Polk speakers front and back, the AVH P8400BH has adequate Bsee but the B 8-PTD fills it out. This configuration provides much more audio than the truck needs. I have been very pleased with Crutchfield's supeerb service and their tech support. They helped the installation go flawlessly. I will be a repeat customer with this outstanding orgainzation.
    Pros:
    *self contained *small enough to fit under a seat *more than sufficient base for my needs *Easy to follow ste-up instructions
    Cons:
    *Still looking for one!
    3 out of 3 people found this helpful
    Was this review helpful?    Yes | No
     
    1-11 of 11

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    SquareTrade Warranty 3 Year Warranty
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    100% parts and labor - no deductibles

    All mechanical and electrical failures covered, includes normal wear and tear.

    Your item's repaired or the full item price returned withing 5 days

    Runs concurrent with manufacturer's warranty

    Rated 5-stars by consumers

    For a more in-depth review and enhanced detailed information on the Sound Ordnance B-8PTD, please visit the Crutchfield website product page (/S-oM937aGKO2s/p_777B8PTD/Sound-Ordnance-B-8PTD.html ).

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      Sound Ordnance B-8PTD
    • Other

      Sound Ordnance B-8PTD
    • Other

      Sound Ordnance B-8PTD
    • Other

      Sound Ordnance B-8PTD
    • Remote

      Sound Ordnance B-8PTD
    • Remote control knob

      Sound Ordnance B-8PTD