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Classe Sigma Amp2 2channel power amplifier




Sigma Amp2

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The Sigma series AMP2 is a 200W/Ch stereo amplifier utilizing switching technologies for both power supply and amplification stages. A Classé-designed switch mode power supply with Power Factor Correction makes over 1,000W of clean and stable power available while being both compact and efficient. A new class D amplifier topology provides wide dynamic range, smooth and extended frequency response and rich harmonic detail to yield stunning sonic performance. The efficiency of class D adds efficiency, low heat dissipation and relatively small size to the list of the AMP2’s attributes. 

Frequency response
Output power
Harmonic Distortion
Peak Output Voltage
Input Impedance
Voltage gain
Input level at clipping
Signal to Noise Ratio
Rated power
Mains voltage
Overall dimensions( WxDxH)
Net weight
Shipping weight
10Hz – 20kHz, -1dB into 4Ω
200W rms into 8Ω 400W rms into 4Ω
<0.018% @ 1kHz Balanced Input
113V peak to peak, 40V RMS no load 
113V peak to peak, 40V RMS into 8Ω
100kΩ Balanced / 50kΩ SE
29 dB 
1.4Vrms Balanced/SE
>80 dB below fundamental into 8Ω Balanced
-100 dB at peak output into 8Ω (AES17)
177W @ 1/8th power into 4Ω
100V - 240V, 50/60Hz
433mm x 370mm x 95mm
9.97 kg
12.70 kg
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