Integrated amplifiers — Devialet Expert 220 Pro
Description, images, technical data and specifications
Devialet Expert 220 Pro
Image source — © Devialet
The circuit is not new - Quad 405, the famous power amplifier with current damping, one of the classic solutions for a powerful transistor amplifier with low output impedance and low distortion. Devialet has significantly updated the circuit - now class D for the buffer amplifier matching the output impedance of the cascade in class A and the load is responsible for minimal heat dissipation and high efficiency of the device, reaching 85%.
Specifications
Model name
Expert 220 Pro
Type
Streaming integrated amplifier with DAC and ADC
Analog inputs (balanced)
3
Analog inputs (single-ended)
1
Input sensitivity (mV)
N/A
Input impedance (balanced) (Ω)
N/A
Input impedance (single-ended) (Ω)
N/A
Output impedance (balanced) (Ω)
N/A
Output impedance (single-ended) (Ω)
N/A
D/A conversion
No
Phono MM/MC current-sensing input impedance (Ω)
N/A
Output power (8Ω) (W)
2 x 220 (6 Ohms)
Output power (4Ω) (W)
N/A
Gain (dBu)
N/A
Frequency response low +/- 3dB (Hz)
0
Frequency response high +/- 3dB (Hz)
35000
Signal to Noise Ratio (dB)
130
Total Harmonic Distortion + Noise (%)
0.0005
Damping factor
8000
Dimensions (mm)
383 x 383 x 400
Weight (kg)
5.9
Official link
