• Overview
  • Specifications

CA-M400 400W MONAURAL AMPLIFIER

The CA-M400 is a 400W monaural amplifier. Balanced throughout, the CA-M400 also uses these 200W modules, but configured in balanced output mode. One module amplifies an inverted signal while the other handles a non-inverted signal. Our balanced output stage cancels noise and distortion and yields higher power without reducing low impedance drive capability. Music lovers seeking the benefits of high-end monaural amplifiers and multichannel enthusiasts who can afford the price of admission will find the CA-M400 an ideal choice for a no-compromise Delta series Classé audio system.

CA-M400 400W MONAURAL AMPLIFIER

models
(balanced inputs)
CA-M400
voltage gain 29.1dB
bandwidth 

phase
155kHz (-3dB) 
22kHz (-0.1dB)
< -10° (22kHz)
sensitivity 2.0Vrms

power/channel (continuous)
(120VAC line, 1kHz signal regulated to 1% THD + noise into resistive load, all channels driven)
load (resistive)  
400W
800W

THD + noise
(unweighted, 10Hz - 500kHz bandwidth, 1Vrms/1kHz input)
load (resistive)  
none 0.001%
0.003%
0.005%

noise FFT noise floor peaks all below –95dBV 
(with terminated inputs)

S/N ratio (relative to 1kHz sine wave full level output into 8Ω) 112dB

height depth (excluding connectors) width gross weight net weight
8.75” (222 mm)
18.5” (470 mm)
17.5” (445 mm)
94 lbs (43 kg)
82 lbs (37 kg)

idle power consumption 166W
rated power consumption 480W