Benchmark HPA4 Calculator

by John Siau November 16, 2022 1 min read

Benchmark HPA4 Calculator

BENCHMARK HPA4 CALCULATOR
DAC Calibration: +24 dBu at 0 dBFS, XLR Input (Benchmark DAC)
4 Vrms at 0 dBFS, XLR Input (Typical HiFi Balanced)
2 Vrms at 0 dBFS, RCA Input (Typical HiFi Unbalanced)
HPA4 Volume Setting: dB
Headphone Sensitivity:
dB SPL @ 1 mW
dB SPL @ 1 Vrms
Headphone Impedance:
RESULTS
Amplifier Output Power: mW (at peak SPL)
Relative Output Power: dBm (dB relative to 1 mW)
Relative Output Level: dBV (dB relative to 1 Vrms)
Headphone Peak SPL: dB SPL
Amplifier Headroom: dB (at peak SPL)


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