• UcD400 OEM
  • UcD400 OEM
  • UcD400 OEM
  • UcD400 OEM
  • UcD400 OEM
  • UcD400 OEM
  • UcD400 OEM

UcD400 OEM

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The UcD400 OEM amplifier module is a self-contained high-performance class D amplifier intended for a wide range of audio applications, ranging from Public Address systems to ultrahigh-fidelity replay systems for studio and home use. Chief distinguishing features are flat frequency response irrespective of load impedance, nearly frequency-independent distortion behaviour and very low radiated and conducted EMI. Control is based on a phase-shift controlled self-oscillating loop taking feedback only at the speaker output.


  • Monitor loudspeakers for recording and mastering studios
  • Audiophile power amplifiers for professional and consumer use
  • Public Address systems
  • Home theatre systems
  • Active loudspeakers


  • Runs on unregulated +/- rails
  • Pop-free start and stop control
  • Differential audio input
  • On-board clipping detection
  • DC-fault detection
  • Overcurrent and overvoltage protection
  • Power supply voltage: +/- 45-73V
  • Unit shuts down when either rail exceeds 75V
  • Output current limits at 20A
  • Output power: 400Wrms @ 4Ohm


  • Flat, fully load-independent frequency responce
  • Low output inpedance
  • Very low, frequency-independent THD
  • Very low noice
  • Fully passive loop control
  • Consistent top performer in listening trails


  • UcD400 OEM amplifier module
  • Manual


  • Power Supply SMPS400A400 / SMPS1200A400
  • Cable set SMPS400 or SMPS1200
  • UcDxxx OEM Converter


Technique UcD
Power (4Ω) 400W
Channels 1
HxR Ready No
Weight 145g
Dimensions mm 82*75*38
OpAmp No
SMPS Voltage +/- 64V
Recommended SMPS SMPS400A400/SMPS1200A400
Current limit @ 20A


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