Amplifier Output Calculator

Amplifier Output Calculator Results update on input change. Enter Speaker Impedance: Ohms Enter Power into Above Load: Watts Results Output Level: dBu Output Voltage: Vrms Peak Voltage: Volts Peak Peak to Peak Voltage: Vpp Output Current: Amps RMS Peak Current: Amps Peak Amplifier Output Noise Calculator Results update on input change. Enter Rated Power into 8 Ohms: Watts Enter Signal to Noise Ratio (SNR): dB Results Output Level: dBu Output Voltage: Vrms Output Noise Level: dBu Output Noise Voltage: uV RMS Output Noise Power: dBW SNR at 1W Output: dB Amplifier + Speaker Output Calculator Results update on input change. Enter Amplifier Power Per Channel into 8 Ohms: Watts Enter Amplifier SNR: dB Enter Speaker Sensitivity: dB SPL (2.83 V, 1 M) Enter distance from Speaker(s): Meters Select Number of Speakers: One Speaker Two Speakers Select 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 (at listening position): dB SPL (at listening position) Amplifier Noise Level: dB SPL (at listening position) Audibility Amplifier Noise is absolutely inaudible if Noise SPL level is negative. Amplifier Noise may be audible if Noise SPL level is positive. Does not include noise of devices feeding the power amplifier. Will the THD+N Produced by My System be Audible? Enter the THD+N of the worst component in your signal chain. Enter the voltage sensitivity of your speakers. Enter the rated output power of your amplifier. Choose your listening configuration. View the result! If the result is less than 0 dB SPL, the THD +N produced by your electronics will be absolutely inaudible. Step 1 - Use this calculator to convert THD or THD+N from percent to dB (if necessary) THD % to dB Converter Results update on input change. Enter THD in %: Results THD: dB Step 2 - Use this calculator to compute the sound pressure level (SPL) of THD or THD+N THD+N Audibility Calculator Results update on input change. Enter Amplifier Power Per Channel into 8 Ohms: Watts Enter THD+N: dB Enter Speaker Sensitivity: dB SPL (2.83 V, 1 M) Enter distance from Speaker(s): Meters Select Number of Speakers: One Speaker Two Speakers Select 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 (at listening position): 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. Read the complete instructions for the THD+N Audibility Calculator

Amplifier Output Calculator

Amplifier Output Calculator

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Amplifier Output Noise Calculator

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Amplifier + Speaker Output Calculator

Select Number of Speakers:

Select Room Configuration:

Contributing Factors

Results

Audibility

Will the THD+N Produced by My System be Audible?

Step 1 - Use this calculator to convert THD or THD+N from percent to dB (if necessary)

THD % to dB Converter

Results

Step 2 - Use this calculator to compute the sound pressure level (SPL) of THD or THD+N

THD+N Audibility Calculator

Select Number of Speakers:

Select Room Configuration:

Contributing Factors

Results

Audibility

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