THD Calculator

by John Siau November 29, 2022 1 min read

THD % to dB Converter
% THD
RESULTS
dB THD
THD dB to % Converter
dB THD
RESULTS
% THD
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Volts RMS to dBu Converter

by John Siau November 23, 2022 1 min read

Volts RMS to dBu Converter
Volts RMS
RESULTS
dBu
dBu to Volts RMS Converter
dBu
RESULTS
Volts RMS
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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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Gain Calculator

by John Siau November 22, 2022 1 min read

Gain Calculator
Input Voltage: Volts
Output Voltage: Volts
RESULTS
Gain: dB
Output Voltage Calculator
Input Voltage: Volts
Gain: dB
RESULTS
Output Voltage: Volts
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Peak SPL Calculator - Simple Version

by John Siau November 17, 2022 2 min read

PEAK SPL CALCULATOR
Speaker Sensitivity: dB SPL (2.83 V, 1 M)
Amplifier Power Per Channel into 8 Ohms: Watts
RESULTS
Peak Output Level (at typical listening position): dB SPL
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Peak SPL Calculator

by John Siau November 17, 2022 3 min read

PEAK SPL CALCULATOR
Speaker Sensitivity: dB SPL (2.83 V, 1 M)
Amplifier Power Per Channel into 8 Ohms: Watts
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
Gain from amplifier: dB (relative to 2.83 V)
SPL from single loudspeaker: dB SPL
Gain from multiple loudspeakers: dB
Loss due to distance: dB (relative to 1 meter)
Gain from room reflections: db (typical - may vary)
SUM
Peak Output Level (at typical listening position): dB SPL
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THD+N Audibility Calculator

by John Siau November 16, 2022 4 min read

THD+N AUDIBILITY CALCULATOR
THD+N: dB
Speaker Sensitivity: dB SPL (2.83 V, 1 M)
Amplifier Power Per Channel into 8 Ohms: Watts
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
Gain from amplifier: dB (relative to 2.83 V)
Gain from single loudspeaker: dB
Gain from multiple loudspeakers: dB
Loss due to distance: dB (relative to 1 meter)
Gain from room reflections: db (typical - may vary)
RESULTS
Peak Music Level: dB SPL (at listening position)
Peak THD+N Level: dB SPL (at listening position)
AUDIBILITY
THD+N is absolutely inaudible if THD+N SPL level is negative.
THD+N may be audible if THD+N SPL level is positive.
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Speaker Efficiency to Sensitivity Conversion Tool

by John Siau November 16, 2022 1 min read

Speaker Efficiency to Sensitivity Converter
Speaker Efficiency: dB SPL (1 W, 1 M)
Speaker Nominal Impedance: Ohms
RESULTS
Speaker Sensitivity: dB SPL (2.83 V, 1 M)
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SNR to Output Noise Calculator

by John Siau November 16, 2022 1 min read

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