In September last year Classè launched the new Sigma series, and we wrote about it here. It consisted of three models - the AV-processor SSP and the two power amps AMP2 and AMP5, providing 200W into 8 ohms, respectively 2 and 5 channels.
The new model Mono is certainly a monoblock, and has a rated output of 350 Watts into 8 ohms. And also here utilizes Class the ancient checking trick to double the effect in 4 ohms.
Classè expresses that they are very satisfied with the sound of Sigma Mono. Dave Nauber, president of Classè says this: Sigma MONO builds on this innovative platform, pushing the performance to heights that surprised even us - and we’re pretty hard to surprise!
Class Sigma Mono has a bypass capability - or daisy-chain - which allows for the signal to pass on to a second power amplifier for biamping. Or a subwoofer.
Manufacturer Specifications:
Sigma MONO Specifications
- Frequency Response 10Hz - 20kHz, -1dB into 4U
- Output power 350W rms into 8Ù700W rms into 4U
- Harmonic distortion 0.012% @ 1kHz driven 2:01 / 8th power into 8U
- Peak Output Voltage 151V peak two peak, 53.4V rms no load 151V peak two peak, 53.4V rms into 8U
- Input impedance 100kÙ Balanced / 50kÙ SE
- Voltage gain 29 dB
- Input level that clipping 1.88Vrms Balanced / SE
- Intermodulation distortion> 80 dB below fundamental into 8U Balanced
- Signal-to-Noise Ratio -109 dB at peak output into 8U (AES17)
- Standby power consumption .5W @ 230 V
- Rated power consumption 130W @ 1 / 8th power into 4U
- Mains voltage 90V - 264V, 50 / 60Hz
- Overall Dimensions Width: 17.00 "(433mm)
- Depth (Excluding connectors): 14.57 "(370mm)
- Height: 3.75 "(95mm)
- Net weight 22 lb (10.00 kg)
- Shipping weight 29 lb (13.18 kg)
All tests un-weighted and 20Hz - 20kHz measurement bandwidth used.
Class Sigma Mono will be available in October.
Class imported to Norway Hi-fi club.
Read more about CLASS Sigma Mono
