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Definitive Technology SuperCube 2000

Ultra-compact powered subwoofer for home theater

31 Reviews | 2 questions - 12 answers

Item # 735SC2000

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Our take on the Definitive Technology SuperCube 2000

If you want high-impact bass excitement without sacrificing a large amount of floor space, then this is the subwoofer for you. Built on the success of Definitive's SuperCube series, the new SuperCube 2000 provides huge bass performance in a compact, room-friendly enclosure that measures less than a cubic foot. The secret to its success is an active woofer/passive radiator combination that produces big sound despite the cabinet's small size. And it's powered by a built-in 650-watt amplifier that really shows off this little sub's tight, accurate bass response.

Huge bass, tiny box

If you want high-impact bass excitement without sacrificing a large amount of floor space, then this is the subwoofer for you. Built on the success of Definitive's SuperCube series, the new SuperCube 2000 provides huge bass performance in a compact, room-friendly enclosure that measures less than a cubic foot. The secret to its success is an active woofer/passive radiator combination that produces big sound despite the cabinet's small size. And it's powered by a built-in 650-watt amplifier that really shows off this little sub's tight, accurate bass response.

A unique approach to rock-solid bass

Back panel close-up

The SuperCube 2000 contains a 7-1/2" woofer pressure-coupled to two 7-1/2" passive radiators. This driver array gives the SuperCube 2000 the advantage of far greater speed and control than any large single-woofer sub could achieve. It's sure to please both movie and music lovers with its ability to produce explosive effects for Hollywood blockbusters, as well as precise, musical bass for all kinds of music.

The specially engineered, non-resonant cabinet uses multiple internal bracings to make sure that you hear clean bass without sound-muddying vibrations. And its single LFE input makes setup with multichannel home theater receivers quick and easy.

Product Highlights:

  • built-in 650-watt amplifier
  • frequency response 20-200 Hz
  • 7-1/2" long-throw woofer pressure-coupled to two 7-1/2" low bass radiators
  • bass-reflex (passive radiator) enclosure
  • auto on/off
  • LFE input for use with home theater receiver's subwoofer output
  • piano-gloss black finish
  • 10-1/4"W x 10-13/16"H x 12-5/8"D
  • warranty: 5 years woofer, 3 years amplifier
  • Our 60-day money-back guarantee

What's in the Box:

  • 7.5" Powered subwoofer
  • 7' AC power cord
  • 4 Threaded rubber-feet
  • 4 Spike feet (hex-nut attached)
  • Owner's Manual
  • Online Product Registration card

Great bass response for what seemed like such a small subwoofer. Packs a great punch and even hits low bass.

Andrew, Melbourne, FL


Definitive Technology SuperCube 2000 Reviews

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Hands-on research

Features and Specs

Enclosure Passive Radiator
Video Shielded No
Woofer Size (inches) 7 1/2
Woofer Composition Not given
Firing Direction Front
Wireless No
Preamp-Level Inputs Yes
Speaker-Level Inputs No
Speaker-Level Outputs No
Low-Pass Crossover Freq N/A
High-Pass Crossover Freq N/A
Phase Switch No
Amplifier Output (watts) 650
Frequency Response 20-200 Hz
Height (inches) 10-13/16
Width (inches) 10-1/4
Depth (inches) 12-5/8
Weight 25 lbs
Speaker Parts Warranty 5 Years
Speaker Labor Warranty 5 Years
Amplifier Parts Warranty 3 Years
Amplifier Labor Warranty 3 Years

Product Research



Definitive Technology SuperCube Powered Sub: The Definitive Technology SuperCube 2000 is a compact, high-quality powered subwoofer intended for use in a music or home theater system. The SuperCube 2000 powered subwoofer allows for easy, seamless integration into almost any two-channel or multichannel speaker system; delivering true, accurate, and extremely deep bass in any room. The SuperCube 2000 is finished in a piano-gloss black lacquer finish with a black non-removable cloth grille.

650 Watt Class D Amplifier: The SuperCube 2000 is powered by a 650-watt (RMS) class D amplifier. The result is high-definition bass performance extending effortlessly down to 20 Hz.

Passive Radiator Design: The SuperCube 2000 features a 7.5" high-definition long-throw woofer pressure coupled to two side-firing 7.5" Ultra Low Bass Radiators. The total piston area is greater than a 12-inch diameter woofer but with far greater speed, musicality, and control than a single large diameter woofer could deliver.

Non-Resonant Cabinet: The cabinet of a loudspeaker plays a large part in its sonic performance. Resonance and vibration can add unwanted distortion as well as drain away important energy from the system. The Definitive Technology SuperCube 3000 powered subwoofer utilizes a wood-composite cabinet with internal bracing, that has been specifically engineered to be totally inert and vibration free, to ensure you of pure sonic reproduction.

Ultra-Compact Design: The SuperCube 2000 measures only 10.25" (w) x 10.8125" (h) x 12.625" (d), and weighs only 25 lbs. Measurements include rubber-feet and cables.

Interchangeable Feet: The SuperCube 2000 comes with 4 rubber-feet and 4 spiked-feet for safe and secure placement of the powered subwoofer on your carpet or hardwood floors. The spiked feet add 0.125" of height to the powered subwoofer.

Placement: There are some general guidelines that you should use when locating the powered subwoofer.

  • For best results, place the subwoofer on the same side of the room as your front speakers.
  • For maximum output, the subwoofer should be placed in a corner or against the wall, leaving approximately 2" to 4" clearance between the powered subwoofer and the wall(s).
  • Corner placement will increase the powered subwoofer's output.
  • An acoustic effect called "standing waves" or "room modes" may cause uneven bass at various locations throughout the room. This phenomenon is a function of the dimensions of the room and not due to the design of the powered subwoofer.

Protection Circuit: To prevent accidental damage to the subwoofer from overdriving the system, the SuperCube 2000 features an internal overload protection circuit, which will turn the subwoofer off or down when overdriven or overheated and will then resume normal operation after a few minutes.


Subwoofer Level: The Definitive Technology SuperCube 2000 features a rear-mounted volume control. This control is used to raise or lower the output level of the subwoofer in relation to the other speaker in your system.

Auto Turn-On Circuit: The powered subwoofer has a special power circuit which automatically turns the powered subwoofer on when a signal is fed to the loudspeaker and turns it off when there is no signal present, so it does not require an on-off switch.

Note: You may hear a pop from the speaker when the amp powers up or powers down; this is normal.

LED Indicator: The red LED on the back panel of the powered subwoofer will light up when a signal is sensed and the amplifier turns on. It will automatically turn off with the powered subwoofer, a little while after the signal is discontinued.


LFE Subwoofer Input: The Definitive Technology SuperCube 2000 is equipped with a LFE mono-Subwoofer RCA input. Simply connect the powered subwoofer to your A/V receiver's LFE mono-Subwoofer RCA output via a mono-Subwoofer cable. Because the SuperCube 2000 is only equipped with an LFE input, it does not feature a built-in crossover control. You will use the subwoofer output crossover in your A/V receiver to set the low-pass crossover frequency for the SuperCube 2000.

Note: The SuperCube 2000 does not feature stereo RCA inputs/outputs or speaker-level inputs/outputs.

Detachable AC Power Cord: The SuperCube 2000 includes a detachable 7' AC power cord. The SuperCube 2000 must be plugged into a 120V, 60Hz electrical socket (use an unswitched outlet if possible).

Our Product Research Team

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Q & A

Customer Q&A

Crutchfield asked  
Why did you buy this?

Have there speakers [ S  Mar 12, 2018 ]
Compact and Powerful! [ Louis  Aug 20, 2017 ]
I have a definitive technology sound bar and they are the best speakers [ ROBERT  Mar 17, 2017 ]
Great power -- ease of use, smaller size [ Michael  Dec 31, 2016 ]
Size and power [ Steven  Dec 20, 2016 ]
Size and reviews [ PAUL S  Dec 01, 2016 ]
size restrictions, and recommendation from the crutchfield team [ P  Aug 15, 2016 ]
Size and performance. [ Rimas  Aug 04, 2016 ]
Very well reviewed subwoofer with the small footprint I need. [ Alan  May 27, 2016 ]
Size [ Tvcraig  May 13, 2016 ]
Hard hitting bass is the back bone for a very entertaining home theater system,this is the one. Def Tech [ Carlton  Jan 26, 2016 ]

2 questions already asked

I guess you'd have to ask the engineers at def tech, they have to add something to the more expensive units.But if you want control over crossover (at the subwoofer) you'd have to go with the 4000,6000,or 8,000 series. All of which have push button frequency adjustments and a hand held remote. (do you need more remotes?) But seriously I own a supercube 2000 and its more than adequate in the power department and I like the rotary dial for the volume. I believe the crossover is set at 200hz, not some thing I ever felt the need to adjust, although I do have adjustment of subwoofer low pass in my yamaha rx-a 2040 amp. I'm happy with the supercube 2000, it sounds excellent in my house. [ B  Oct 03, 2015 ]
i used 14 gauge wire on my speakers and a subwoofer cable on the super cube.The result is absulutely amazing.the sound quality is incredable [ HUNTLEY H  Apr 25, 2014 ]
I used "Monster 600SW-4M Subwoofer Cable". Works great [ KEVIN  Apr 24, 2014 ]
Anthony I can only imagine that you are asking about the left and right wires from my amp to sub. If that is correct I used and recommend a high quality R/C cable with gold plated plugs. You can try Monster Cable. [ NICHOLAS A  Apr 23, 2014 ]
Monster LFE subwoofer cable. [ EDSEL A  Apr 23, 2014 ]
High-quality Coaxial Audio/Video RCA CL2 Rated Cable - RG6/U 75ohm (for S/PDIF, Digital Coax, Subwoofer & Composite Video) [ JOHN J  Apr 23, 2014 ]
There are no speakers. It's wireless. It's really neat. Works great! [ KACI  Apr 23, 2014 ]
Single RCA cable. [ NICHOLAS A  Apr 23, 2014 ]
Hi Anthony. DT subwoofer uses RCA cable. It is very simple set up. My is connected to Denon receiver. [ Jiri  Apr 23, 2014 ]
An RCA Audio Cable Red White Cord Composite Stereo for Speaker(s) [ GEORGE G  Apr 23, 2014 ]
Shielded cable with RCA to RCA Connectors. [ GREGORY  Apr 23, 2014 ]
Mine is hooked up with coax [ JOHN  Apr 23, 2014 ]

Looking for more? Check out the next model in this lineup.

Definitive SuperCube 4000

Get even cleaner, deeper bass

The Definitive Technology SuperCube® 4000 offers these features:

has an 8" long-throw woofer pressure-coupled to two 8" low bass radiators for bass down to 16 Hz

has a built-in 1,200-watt amplifier

uses distortion-killing digital signal processing to keep the bass as clean as possible

phase control for fine-tuning the bass

wireless remote control and front-panel LCD


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