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LA4

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.

BENCHMARK SYSTEM 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)
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

CONTRIBUTING FACTORS
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)
RESULTS
Peak Output Level (at typical listening position):	dB SPL
Amplifier Headroom (at Peak Output):	dB
Amplifier Peak Output Power:	Watts

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LA4

Benchmark System Calculator

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