Sporting a hefty wattage and traditional studio aesthetics, the CLA400 is Avantone’s most powerful standalone power amplifier to date.

Reference grade power

CLA400 is a stereo amplifier serving up 360 pristine watts into 8 ohms, 540 watts into 4 ohms stereo, or 760 watts bridged. The amp’s high resolution output is powered by high quality Japanese components along with a heavy-weight linear power supply powered by a specially selected toroidal transformer.

Classically designed

Avantone’s Class A/B architecture is housed in a 3U 19” rack mountable chassis armed with large-sized VU meters for ease of signal visibility.

Thanks to its intelligent convection cooling system, the CLA400 can operate without any internal fans making it an easy unit to situate within studios or control rooms.

For audio engineers seeking a dynamic, high output amplifier with impressive range and resolution, the CLA400 is a perfect match for medium to large sized speakers.


28V/us @ 1KHz
0.775V (0dBU @ 1KHz)
< 0.1% @ 1kHz
< 0.1% @ 10% rated power
Frequency Response:
20Hz-20kHz +/-0.5dB
Input Impedance:
Balanced 20KΩ, Unbalanced 10kΩ
Damping Factor:
250 (100Hz, 8Ω)
> 103dB (A Weighted)

Physical Properties

483 x 133 x 487mm (WxHxD)

Main Features

  • Class A/B power amp for passive speakers
  • 360W into 8Ω stereo, 760W bridged
  • 540W into 4Ω stereo
  • Classic, natural DSP-free sound
  • Analogue signal path
  • Large VU monitoring meters
  • Quiet operation with no onboard fans
  • Switchable stereo, bridge or parallel modes
SSP (inc VAT) £ 1,250.00
Code AV-CLA400
EAN 753459951316