About 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.
Product 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
- MFR # B-8PT
What's in the box:
Sound Ordnance B-8PT 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
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More details on the Sound Ordnance B-8PT

Features & specs
General | ||
---|---|---|
Enclosure Type | Sealed | |
Finish Material | Metal/plastic | |
Grille | Metal | |
Connector Type | RCA/Molex | |
Bi-amp Inputs | No | |
Woofer Size (inches) | 8 | |
Woofer Material | Aluminum | |
Passive Radiator | None | |
Width | 9-1/8" | |
Height | 3-1/4" | |
Depth | 13-13/16" | |
Parts Warranty | 3 Years | |
Labor Warranty | 3 Years | |
Specifications | ||
Frequency Response | 40-200 | |
Amplifier Power (RMS) | 120 watts | |
Maximum Wattage | 250 watts | |
Sensitivity | N/A | |
Impedance | N/A | |
Second Voice Coil Impedance | N/A | |
Crossover Point | 80-200 |
Product Research
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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