ClasseMonoClasse Mono Sigma Series 350 Watt Mono Power Amplifier X2 –DEMO/WarrantyClasse’ Audio Sigma Mono – 350 watt mono channel power amplifier offering two (x2) on this listing. . The Sigma Mono X2 was a display model and demonstrated when customers wished to listen to th...5399.00

Classe Mono Sigma Series 350 Watt Mono Power Amplifier X2 –DEMO/Warranty [Expired]


no longer for sale

Classe’ Audio Sigma Mono  – 350 watt mono channel power amplifier offering two (x2) on this listing.  .  The Sigma Mono X2 was a display model and demonstrated when customers wished to listen to the amplifiers. Original box and packaging come with the Sigma Mono’si.This is a digital engineer amplification but does not sound digital at all.   The amplifier is a 8.5 out of 10 condition. Warranty comes with the unit.

Shipping – Included with purchase of the unit within most contiguous US states(lower 48 states) only. Shipping cost is added to buyers in Alaska, Puerto Rico, Hawaii,  Guam and Virgin Islands.

Sigma MONO MONAURAL AMPLIFIER

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)

 

https://classeaudio.com/sigma-mono/