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Amplifier Output Calculator

by John Siau November 23, 2022 1 min read

Amplifier Output Calculator
Speaker Impedance: Ohms
Power into Above Load: Watts
RESULTS
Output Level: dBu
Output Voltage: Volts RMS
Peak Voltage: Volts Peak
Volts Peak to Peak
Output Current: Amps RMS
Peak Current: Amps Peak
Amplifier Output Noise Calculator
Rated Power into 8 Ohms: Watts
Signal to Noise Ratio (SNR): dB
RESULTS
Output Level: dBu
Output Voltage: Volts RMS
Output Noise Level: dBu
Output Noise Voltage: uV RMS
SNR at 1W Output: dB
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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.

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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ENOB Calculator

by John Siau November 16, 2022 2 min read

SNR to ENOB CALCULATOR
SNR: dB
(Signal to Noise Ratio)
RESULTS
ENOB: bits
(Effective Number of Bits)
ENOB to SNR CALCULATOR
ENOB: bits
(Effective Number of Bits)
RESULTS
SNR: dB
(Signal to Noise Ratio)

Click "Read More" for a tutorial with interactive examples.

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SNR to Output Noise Calculator

by John Siau November 16, 2022 2 min read

SNR to Output Noise Calculator
Output Signal Level: dBu
Signal to Noise Ratio (SNR): dB
RESULTS
Output Noise Level: dBu
Output Noise Voltage: uV
SNR to Output Noise Calculator
Output Signal Voltage: Vrms
Signal to Noise Ratio (SNR): dB
RESULTS
Output Signal Level: dBu
Output Noise Level: dBu
Output Noise Voltage: uV

Click "Read More" for a tutorial with interactive examples.

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Uncorrelated Noise Summation

by John Siau November 15, 2022 3 min read

Noise Summation
Noise Level 1: dB
Noise Level 2: dB
RESULTS
Noise Sum: dB
Units may be dBFS, dBSPL, dBV,
dBu, dBm, dBW,
or dB relative to full output.
(All units must match)
Uncorrelated Noise Only
Noise Voltage Summation
Noise Voltage 1:
Noise Voltage 2:
RESULTS
Noise Voltage Out:
Units may be V, mV or uV
(All units must match)
Uncorrelated Noise Only

Click "Read More" for a tutorial with interactive examples.

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