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Description
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.
| All tests un-weighted and 20Hz – 20kHz measurement bandwidth used. | ||
| Frequency response | 10Hz – 20kHz, -1dB into 4Ω | |
| Output power | 350W rms into 8Ω 700W rms into 4Ω | |
| Harmonic Distortion | <0.012% @ 1kHz driven to 1/8th power into 8Ω | |
| Peak Output Voltage |
151V peak to peak, 53.4V rms no load 151V peak to peak, 53.4V rms into 8Ω |
|
| Input Impedance | 100kΩ Balanced / 50kΩ SE | |
| Voltage gain | 29 dB | |
| Input level at clipping | 1.8Vrms Balanced/SE | |
|
Intermodulation Distortion |
>80 dB below fundamental into 8Ω Balanced | |
| Signal to Noise Ratio | -109 dB at peak output into 8Ω (AES17) | |
| Standby power consumption | .5W @ 230 V | |
|
Rated power consumption |
130W @ 1/8th power into 4Ω | |
| Mains voltage | 90V - 264V, 50/60Hz | |
| Overall Dimensions |
Width: 17.00" (433mm) Depth (excluding connectors): 14.57" (370mm) Height: 3.75" (95mm) |
|
| Net weight | 22.0 lb (10.00 kg) | |
| Shipping weight | 29.0 lb (13.18 kg) | |