Underground 12" subwoofer, green. Delivers high output at 500 watts for extra low end in an outdoor environment. Fiberglass-reinforced plastic (FRP) construction.

Part Number: ST-SUB-12

  • 500W Audiofile Grade Driver
  • 12" Bandpass Underground Sub
  • 4 ohm or 70V
  • 70V Tap Setting at 200W
Type:Underground Subwoofer (passive)
Driver:12" Injected polypropylene woofer, long throw
Power handling:400 watts
Sensitivity:89dB (2.83V @ 1 meter)
Impedance:4 Ohm/70V
Frequency response:28-85Hz (+/-3dB)
Enclosure material:Fiberglass reinforced plastic (FRP)
Enclosure dimensions:24.7" (624mm) L
23.1" (548mm) W
33.7" (855mm) w/port

Underground 10" subwoofer, yellow. Delivers high output at 250 watts for extra low end in an outdoor environment. Fiberglass-reinforced plastic (FRP) construction and five year limited warranty.


Bigger Volume
Maximum Airflow Port Tube - unique flared design at both ends optimizes airflow to generate maximum sound.

Deeper Bass
Balanced Dual Air Chambers - tuned specifically for its Bandpass enclosure and properly balanced to enhance performance of 10 injected poly driver for deep, rumbling bass.

Greater Sound Dispersion
Exclusive Soft Curve Cap - projects sound throughout the surrounding area rather than sending it back into the ground like other underground subs. 2,500+ square foot omnidirectional sound.

Smaller Footprint
Less Than 19 Long - Enjoy big, booming sound with the smallest landscape footprint in the industry.

Part Number: ST-SUB-10


Type: Underground Subwoofer (passive)
Driver: 10" Injected polypropylene woofer, long throw
Power handling: 20-250 watts
Sensitivity: 88dB (2.83V @ 1 meter)
Impedance: 8 Ohm
Frequency response: 30-180Hz
Enclosure material: Fiberglass reinforced plastic (FRP)
Enclosure dimensions: 18.9" (480mm) L
16.5" (420mm) W
28.7" (730mm) w/port