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Power amplifiers stereo — Doshi Audio Evolution Stereo Amplifier
Description, images, technical data and specifications
Doshi Audio Evolution Stereo Amplifier
Image source — © Doshi Audio
The Evolution Stereo Amplifier is a stereo power amplifier from Doshi Audio, an American manufacturer known for meticulous, purist circuit engineering. The Evolution Stereo Amplifier brings that considered approach to two-channel power amplification.
Key specs that matter
Input impedance is 20k ohms balanced or 47k ohms single-ended. Output power is 65W into 4 ohms - a modest figure reflecting Doshi's characteristic prioritisation of sonic purity over raw output figures. Signal-to-noise ratio is 80dB.
Sound and use context
Expect the meticulous, considered sonic character Doshi Audio's broader circuit-design philosophy pursues, with the modest 65W output suited to efficient loudspeakers rather than demanding, low-sensitivity designs.
Pairing
The modest 65W output calls for an efficient loudspeaker to reach satisfying volumes with real dynamic headroom, and the high 47k ohm single-ended input impedance eases preamplifier compatibility.
Alternatives
Doshi Audio's own Evolution Line Preamplifier and Evolution Monoblock Amplifier offer natural, brand-coherent companion components for buyers building a coherently voiced, entirely Doshi-engineered system.
Key specs that matter
Input impedance is 20k ohms balanced or 47k ohms single-ended. Output power is 65W into 4 ohms - a modest figure reflecting Doshi's characteristic prioritisation of sonic purity over raw output figures. Signal-to-noise ratio is 80dB.
Sound and use context
Expect the meticulous, considered sonic character Doshi Audio's broader circuit-design philosophy pursues, with the modest 65W output suited to efficient loudspeakers rather than demanding, low-sensitivity designs.
Pairing
The modest 65W output calls for an efficient loudspeaker to reach satisfying volumes with real dynamic headroom, and the high 47k ohm single-ended input impedance eases preamplifier compatibility.
Alternatives
Doshi Audio's own Evolution Line Preamplifier and Evolution Monoblock Amplifier offer natural, brand-coherent companion components for buyers building a coherently voiced, entirely Doshi-engineered system.
Specifications
Model name
Evolution Stereo Amplifier
Input sensitivity (mV)
N/A
Input impedance (balanced) (Ω)
20 000
Input impedance (single-ended) (Ω)
47 000
Output impedance (balanced) (Ω)
N/A
Output impedance (single-ended) (Ω)
N/A
Max current (A)
N/A
Output power (8Ω) (W)
N/A
Output power (4Ω) (W)
65
Gain (dBu)
N/A
Frequency response low +/- 3dB (Hz)
N/A
Frequency response high +/- 3dB (Hz)
N/A
Signal to Noise Ratio (dB)
80
Total Harmonic Distortion + Noise (0% global feedback) (%)
N/A
Total Harmonic Distortion + Noise (100% global feedback) (%)
N/A
Max power consumption (W)
N/A
Damping factor
N/A
Dimensions (mm)
N/A
Weight (kg)
N/A
Official link