Weight Tank WT-Comp Compressor

Stock Item, Usually Ships Same or Next Business Day

Stock Item: Ships from our shelf quickly in almost all cases when ordered before our ship cutoff times.

Direct Ship: Non-stock item, but normally ships quickly from the manufacturer or alternate warehouse.

Built To Order: Item is custom built per the options chosen and quickly shipped out upon completion.

More On The Way: The manufacturer is experiencing delays, but we'll ship quickly upon arrival.

New Item: We have this on order, the manufacturer hasn't shipped but you'll be in line upon arrival.

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An all new series of affordable gear from Locomotive Audio!


The Weight Tank Compressor will put a stamp on any material run through its circuitry. The smooth and euphonic sound of soft-knee vari-mu compression paired with thick, distinct and colorful harmonic saturation makes the Weight Tank Compressor very unique.

Unlike its cousin, the Locomotive Audio 14B, which buffs your sound to a glossy sheen, the Weight Tank Compressor offers darker tones while adding huge vintage heft to your audio.


When run in “Round” mode, a smooth, sweet and pure tone will result. If switched to “Drive” mode, an enhanced harmonic structure and overall driven tone will result.


  • XLR input and output connections​
  • Stereo Link 1/4" TS jack on rear
  • 6BC8 and 12AU7 tubes
  • Stereo Link switch​
  • Hard-wire bypass switch​
  • Compression turned off with full counterclockwise attack position, switching to line amplifier​
  • 6BC8 balance adjustment on interior of unit​
  • Custom backlit Gain Reduction Meter​
  • Steel input, interstage and output transformers​
  • Hand-built in USA
  • Heavy 16 gauge steel chassis​
  • 115v/230v AC mains option on rear​
  • 2-year warranty parts and labor

Technical Specs

  • Tubes: (1) 6BC8, (1) 12AU7
  • ​Input load impedance: 5kΩ
  • ​Output impedance: <1kΩ
  • ​Variable Attack: 12 mS - 50 mS)
  • ​Variable Release: (200 mS - 2 Sec)
  • ​Compression ratio 3.5:1
  • ​Frequency response: 20Hz-20kHz
  • ​THD+N: <1% Round || >5% Drive​
  • S/N ratio: >70dB
  • ​Dimensions: 19"w x 3.5"h x 10"d (2u rackspace)
  • ​Shipping Weight: 20 lbs.
  • ​Power Consumption (120/240VAC): 25 watts
Our ONE WITH EVERYTHING ZEN WARRANTY extends the standard manufacturer warranty by one year, see our ZEN WARRANTY page for details.

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