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Buckeye Audio's Purifi 1ET7040SA Monoblocks are high-end class D amplifiers featuring Purifi Audio's cutting-edge 1ET7040SA Eigentakt modules. Designed for critical listening setups, these monoblocks deliver exceptional clarity with ultra-low distortion (THD+N figures comparable to Purifi's standard ~0.0035%), high damping factor, and stable performance into low-impedance loads. The 1ET7040SA module itself provides exceptional linearity and bandwidth, making these amplifiers ideal for demanding audiophile systems and professional monitoring environments.
Amplification power output and characteristics
Analog signal output specifications
Input and output connections
Size, weight, and appearance
Specifications are community-contributed and may not be accurate or complete. Verify all details with the manufacturer before making purchasing decisions. Terms & Conditions
Components that show up alongside the Buckeye Audio Purifi 1ET7040SA Monoblocks in real systems. A verdict means the pair has been checked for compatibility and headroom — open it to see how the two get along.
The closest alternatives on specs, description and the systems they turn up in, with the specs they share set side by side.
The AMP-F10's signal-to-noise is 113 dB against the Buckeye Audio Purifi 1ET7040SA Monoblocks's 100 dB, its thd 0.008% against 0.004%, and its damping factor >600 against >1000. Both share power @ 8ω (200W).
The H20's thd is 0.006% against the Buckeye Audio Purifi 1ET7040SA Monoblocks's 0.004%. Both share power @ 8ω (200W), signal-to-noise (100 dB), and damping factor (>1000).
The Evolution 100A's power @ 8ω is 110W against the Buckeye Audio Purifi 1ET7040SA Monoblocks's 200W, its signal-to-noise 102 dB against 100 dB, its thd 0.002% against 0.004%, and its output impedance 0.05Ω against 0.1Ω.
The RA-1592MKII's signal-to-noise is 103 dB against the Buckeye Audio Purifi 1ET7040SA Monoblocks's 100 dB, its thd 0.008% against 0.004%, and its damping factor >600 against >1000. Both share power @ 8ω (200W).
Bel Canto Design e.One REF501S
Bryston 28B-SST2
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