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Benchmark System Calculator

by John Siau November 23, 2022 1 min read

Calculate the combined system performance of a Benchmark audio system using a DAC3 D/A converter, LA4 line amplifier, and AHB2 power amplifier.

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)
LA4 Volume Setting: dB
AHB2 Amplifier Mode: Stereo
Bridged Mono
Speaker Sensitivity:
dB SPL (2.83 V, 1 meter)
dB SPL (1 Watt, 1 meter)
Speaker ohms: 4 Ohms
8 Ohms
Distance from Speaker(s): meters
Number of Speakers: One Speaker
Two Speakers
Room Configuration: Anechoic Chamber or Large Open Space
Typical Listening Room
Speakers Mounted on or in Front Wall
Amplifier Output Level: dB (relative to 2.83 V)
SPL from single loudspeaker: dB SPL (2.83 V, 1 meter)
Gain from multiple loudspeakers: dB
Loss due to distance: dB (relative to 1 meter)
Gain from room reflections: db (typical - may vary)
Peak Output Level (at typical listening position): dB SPL
Amplifier Headroom (at Peak Output): dB
Amplifier Peak Output Power: Watts
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