AML Dual Racked 54F50 500 Series Compressor – P.O.A.

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The Audio Maintenance Dual 54D50 500-Series Compressor is a pre assembled 500 series system that includes two 54F50 compressor modules in a 10-slot chassis and also includes a mono / stereo switch.

The 54F50 is fully populated with Carnhill transformers to achieve its distinctive classic sound. This high-end hand-built British module provides an affordable solution for the modern cost conscious studio.

The main features of the Audio Maintenance Dual Racked 54F50 500 Series Compressor include:

  • Classic 4 stage (Class A) amplifier, 4 transformer design
  • All discrete component (no surface mount devices)
  • Entirely hand assembled and tested in the England to exacting quality standards.
  • Line Input: Carnhill transformer balanced (Mu-metal screened Classic VTB9046), 10k Input Impedance
  • Interstage: Carnhill Mu-metal screened Classic VTB9045 and VTB9046
  • Line Output: Carnhill transformer balanced (Classic full size output transformer)
  • Compressor: (Class A) amplifier design
  • Ratio 1.5:1, 2:1, 3:1, 4:1 & 6:1
  • Dual attack speeds (Fast = 5mS, Slow = 25mS)
  • Make-up gain 0dB to 20dB in 2dB steps
  • Recovery (release) 400mS, 800mS, 1.6S & Auto
  • Threshold –20dBu to +10dBu
  • Limiter: (Class A) amplifier design
  • Dual attack speeds (Fast = 100uS, Slow = 5mS)
  • Recovery (release) 100mS, 200mS, 800mS & Auto
  • Threshold +4dBu to +12dBu (in 1dB steps)
  • Stereo link via either the backplane edge connector, an XLR or both
  • Illuminated meter selectable for input, output or gain reduction metering.
  • Power off signal bypass
  • Entirely stainless steel chassis.
  • Total current consumption 150mA (per unit)
  • Also available supplied as a pair in a box containing a “mono/stereo” switch


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Additional information

Weight 20 kg


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