Ultra-compact subwoofer delivers big bass
Definitive's smallest subwoofer, the SuperCube III provides huge bass performance in a compact, room-friendly enclosure that takes up less than a cubic foot of floor-space. The secret to its success is an active woofer/passive radiator combination that produces big sound despite the cabinet's small size. And a powerful built-in 650-watt amplifier really shows off this little sub's tight, accurate bass response.
A unique approach to rock-solid bass

A look at the rear panel offering a number of hookup options.
The SuperCube III contains a 7-1/2" woofer pressure-coupled to two 7-1/2" passive radiators, for a total output around that of a traditional 12" woofer. This driver array gives the SuperCube III the advantage of far greater speed, musicality, and control than any large single-woofer sub could produce. The woofer is encased in an incredibly rigid basket engineered to hold the massive magnet structure and large voice coil in absolute alignment. The non-resonant cabinet is nearly 2" thick and uses multiple internal bracings to make sure that you hear clean bass without sound-muddying vibrations.
Flexible inputs and outputs and advanced controls
Line-level and speaker-level inputs let you connect this sub to just about any audio system. The continuously variable low-pass crossover allows you to precisely control the frequencies that your subwoofer handles. And the built-in high-pass crossover is a nice touch: it prevents your main speakers from overloading with low frequencies if you hook them up through the subwoofer's speaker-level outputs.
Details:
- bass-reflex (passive radiator) enclosure
- 7-1/2" long-throw woofer pressure-coupled to two 7-1/2" low bass radiators
- built-in 650-watt amplifier
- frequency response 16-200 Hz
- continuously variable low-pass 40-150 Hz crossover
- auto on/off
- phase control dial for fine-tuning bass performance
- speaker-level inputs and outputs
- 80 Hz fixed high-pass crossover for speaker-level outputs
- two pairs of line-level input
- LFE input for use with home theater receiver's subwoofer output
- piano-gloss black finish
- 10-3/16"W x 10-13/16"H x 11-5/16"D
- warranty: 5 years woofer, 3 years amplifier
Accessories
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Cables
A better cable will give your subwoofer the tools it needs to recreate the deep bass on your music and movies. Cable is not included with this sub.
Speaker Wire With Connectors
If you're going to connect your sub to your receiver with the speaker level inputs, you're going to need speaker wire. Wire is not included with this sub.
Power Protection
Keep surges from coming in the back door with power protection for your subwoofer.
Speaker Wire
If you're going to connect your sub to your receiver with the speaker level inputs, you're going to need speaker wire. You may also want to add connectors. Wire is not included with this sub.