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API Select TranZformer CMP - Compressor Pedal

by API
Save 52%
Original price £478.80 inc. vat
Current price £229.15 inc. vat
£190.96 ex. vat
In Stock - Available for Immediate Dispatch

API Select TranZformer CMP - Compressor Pedal

The API Select TranZformer®CMP incorporates API’s legendary VCA-type compressor circuit into a versatile and compact guitar effects pedal. Designed to easily fit into your pedal board and engineered to run off standard 9V power supplies, the CMP gives you classic studio-quality compression right at your feet. Other features include a buffered bypass in/out footswitch, adjustable attack and release times, wet/dry blend control, selectable “feedback” and “feedforward” compressor styles, transformer output, and of course the classic API sound.


  • Proprietary API 2510 OpAmp
  • Signature API output transformer
  • Adjustable attack and release times
  • Wet/dry blend control
  • Selectable feedback/feedforward compressor styles
  • Buffered bypass


  • Input connection: 1/4" Hi-Z unbalanced instrument input
  • Input Impedance: 1MΩ
  • Bypass: Yes, buffered, 0dB
  • Output connections: 1/4" Hi-Z unbalanced output
  • Output Impedance: Hi-Z output: Less than 1kΩ
  • Input Gain Control: 9dB–30dB, Variable
  • Output Level Control: -inf. to 0dB, Variable
  • Maximum output level before clipping: + 15dBu (9VDC), +22dBu (18VDC)
  • Frequency Response: +0dB, -1dB, 20 - 20kHz
  • Compressor:
    • Ratio (Sustain): Varies from 1:1 to 20 :1 depending on compressor control setting.
    • Attack (switched): FAST (1ms) or SLOW (10ms)
    • Release (switched): FAST (300ms) or SLOW (1s)
    • TYPE (switched): New (Feed-forward), OLD (Feed-back)
  • Power Supply: 9-18VDC @ 100mA
  • Size: 4.6” x 3.8” x 3”
  • Size (Boxed for Shipping): 6” x 4.5” x 4.5”
  • Actual Weight: 1.5 lbs.
  • Shipping Weight: 2 lbs.