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Classe Sigma Amp5 5 channel power amplifier




Sigma Amp5

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The Sigma series AMP5 is a 200W/Ch five-channel amplifier derived from the AMP2, but with necessary part and layout changes to accommodate its five-channel architecture. Like the AMP2, it utilizes 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 AMP5’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 All channels driven
400W rms into 4Ω Any two channels driven* 
0.018% @ 1kHz All channelsdriven 
to 1/8th power into 8Ω
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 SE
-100 dB at peak output into 8Ω (AES17)
200W @ 1/8th power into 8Ω 
100V - 240V, 50/60Hz
433mm x 370mm x 95mm
10.48 kg
13.61 kg
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