** click image to enlarge **
Classe Sigma Mono Power Amplifier




Sigma Mono

Other products

*** Not Available online ***

select an action
The Sigma MONO is the reference design for the proprietary Classé amplifier platform introduced in the Delta series CA-D200 and Sigma AMP2 and AMP5 models. With completely separate chassis for each channel, the monaural amplifier architecture eliminates the possibility of crosstalk between channels and allows speaker cable lengths to be held to a minimum to minimize losses. It efficiently delivers a prodigious 350W into 8Ω and 700W into 4Ω, suitable for the most difficult speaker loads and critical listening applications.

Frequency response
Output power
Harmonic Distortion
Peak Output Voltage
Input Impedance
Voltage gain
Input level at clipping
Signal to Noise Ratio
Standby power consumption
Rated power
Mains voltage
Overall Dimensions
Net weight
Shipping weight
10Hz – 20kHz, -1dB into 4Ω
350W rms into 8Ω 700W rms into 4Ω
<0.012% @ 1kHz driven to 1/8th power into 8Ω
151V peak to peak, 53.4V rms no load 
151V peak to peak, 53.4V rms into 8Ω
100kΩ Balanced / 50kΩ SE
29 dB 
1.8Vrms Balanced/SE
>80 dB below fundamental into 8Ω Balanced
-109 dB at peak output into 8Ω (AES17)
.5W @ 230 V
130W @ 1/8th power into 4Ω
90V - 264V, 50/60Hz
Width: 17.00" (433mm)
(excluding connectors): 370mm
10.00 kg
13.18 kg
There are currently no product reviews.

Write Review
* Required information
Full Name:  *
Phone number:  
E-Mail Address:  *
Share Product
Share via E-Mail
Share on Facebook Share on Twitter