About the Sound Ordnance™ B-8PTD
by Crutchfield's Buck Pomerantz
Fill your vehicle with bass, not equipment
Fill your vehicle with bass, not equipment
Want to put some bass in 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.
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.
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.
Product highlights:
- Featured in our article: Best bass systems for a small car or hatchback in 2024
- 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 (works with most speaker wire input connections)
- wired remote control included
- 10-gauge wiring (not included) recommended
- dimensions: 9-1/8"W x 3-1/8"H x 13-5/8"D
- warranty: 3 years
- MFR # B-8PTD
What's in the box:
Sound Ordnance™ B-8PTD owner's manual
- Amplified subwoofer
- Two 15A ATO fuses (1 installed)
- Wired remote bass control
- 14' Remote cable (RJ-14 plug on both ends)
- 8" Speaker input harness
- 2 Mounting clamps (4" x 1")
- Two 6" x 3/4" Self-adhesive "Hook" strips (half of the Hook and Loop combination)
- Seven 3/4" self-tapping screws (to secure mounting clamps and wired remote)
- 4 Self-adhesive foam strips (two 3/16" wide and two 1/4" wide)
- Owner's manual
- Mounting feet instructions
- Warranty information
Featured video:
Customer Q&A
Q
I have a Jenson Car710W stereo with a single rca subwoofer out cable. How should I connect this to the L/R inputs of the Sound Ordnance B-8PTD subwoofer?
A
The CAR710W should have two blue RCA connections for subwoofer output. I recommend using both to connect to the input of this subwoofer for the best performance.
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More details on the Sound Ordnance™ B-8PTD
Features & specs
General | ||
---|---|---|
Enclosure Type | Sealed | |
Finish Material | Metal/plastic | |
Grille | Metal | |
Connector Type | RCA/Molex | |
Quick-disconnect Plug | No | |
Bi-amp Inputs | No | |
Woofer Size (inches) | 8 | |
Woofer Material | Aluminum | |
Passive Radiator | --- | |
Width | 9-1/8" | |
Height | 3-1/8" | |
Depth | 13-5/8" | |
Parts Warranty | 3 Years | |
Labor Warranty | 3 Years | |
Specifications | ||
Frequency Response | 40-200 | |
Amplifier Power (RMS) | 125 watts | |
Maximum Wattage | 250 watts | |
Sensitivity | 88 dB | |
Impedance | N/A | |
Second Voice Coil Impedance | N/A | |
Crossover Point | 80-200 |
Product Research
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. Two mounting clamps are included to secure the subwoofer to a flat surface.
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 @ 67Hz
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
The Sound Ordnance™ B-8PTD replaces these items
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Sound Ordnance B-8PT
- enclosure with one 8" woofer
- built-in amplifier (120 watts RMS)
- fits under most vehicle seats
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Customer Q&A
178 questions already asked
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Bought this for my 2010 Silverado regular cab, and it delivers where it's not earth shattering but just the right amount where you can feel it in your seat, it really is true that you miss 30% of the sound just by not having the subwoofer, definitely would recommend very compact with a punch.
Joel from Fairbanks