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Definitive Technology Supercube 4000

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Quick Overview


Availability: In stock

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SuperCube® 4000

High Performance 1200W Powered Subwoofer With 8" Woofer and Dual 8" Bass Radiators

  • Huge, accurate bass impact for movies and music from a compact enclosure, measuring only 12.88” x 12” x 13”
  • 8” subwoofer driver pressure-coupled to two 8” Ultra Low Bass Radiators enhances speed, musicality and control
  • 1200-watt digital tracking amplifier and 56-bit Digital Signal Processor (DSP) preamp stage improves performance
  • Disappearing alpha-numeric display and performance optimizer remote control allow precise system tweaking

Digitally Enhanced for Groundbreaking Bass

The newest models in the famed SuperCube® Series combine high impact bass with innovative features. Engineered for maximum performance, convenience and connectivity, these super-powered, ultra-modern subwoofers deliver earthshaking low frequencies that will leave you amazed and delighted. If you’re looking for bottomless bass that comes with the latest in digital technology, look no further than the SuperCube® 4000.

Key Features

High Definition Drivers

Powerful, high definition drivers with ultra-stiff cones, specially formulated surrounds and long-throw voice coils are pressure-coupled to Ultra Low Bass Radiators to deliver the tightest, low-distortion bass ever.

Digitally Optimized for High Performance and Power

The all-new digital tracking amplifier is smart, powerful and more environment-friendly, delivering high-impact, low-distortion bass at all the right moments while consuming much less energy.

Computer Controlled Precision

With an integrated 56-bit Digital Signal Processor (DSP™), bass response is extended and improved. The Multiband Dynamic Range Optimizer (M-DRO) divides frequency into ranges and compresses any range that’s overloaded to prevent distortion and damage.

Rock-Solid Cabinet Enclosures

A speaker’s cabinet affects its sonic performance. Vibration drains acoustical energy and adds unwanted distortion. SuperCube® Series enclosures are totally inert and resonance-free.



  • Remote Performance Optimizer Remote (Included with Subwoofer)
  • Remote Type Infrared (IR)
  • Remote Features
    • Volume +/-
    • Mute
    • Night Mode On/Off
    • Low Pass Filter
    • EQ
    • Display
    • Phase
  • Included Accessories
    • (4) Carpet Spikes


  • Electronics Warranty 3 years
  • Cabinet Warranty 5 years
  • Drivers Warranty 5 years

Shipping Cartons

  • Carton 1 15" (38.1 cm) h x 14.75" (37.47 cm) w x 15.5" (39.37 cm) d - 46 lbs (20.87 kg)


  • Total Pieces 1
  • Driver Complement
    • (1)  8" (20.32 cm) d (Round) - Subwoofer
    • (2)  8" (20.32 cm) d (Round) - Bass Radiator
  • Height 11.88" (30.18 cm)
  • Width 11" (27.94 cm)
  • Depth 12" (30.48 cm)
  • Weight 45.6 lbs (20.68 kg)


  • Display Type Alpha Numeric (disappearing)

Signal Processing


  • Filter 40 Hz → 150 Hz, Slope of 12 dB per Octave
  • Phase Settings (Locked) 0°, 90°, 180°, 270°, 360°


  • Audio Inputs
    • Stereo Line Level - (2) RCA
    • Pair (L/R) Analog RCA
  • Ethernet Yes
  • Speaker Inputs (2) Pair of Speaker Cable - na

Audio Quality

  • Total Frequency Response 16 Hz → 200 Hz

Internal Amplifier

  • Channels 1
  • Amplifier Class Class HD
  • Primary Protection Circuitry Multiband Dynamic Range Optimizer (M-DRO)


  • International Power Cycle Switched & Signal Sensitive Auto On/Off
  • International Fuse Type 4 amp 250 volt Slo Blo




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