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Sound pressure Input sensitivity

Amplifier input sensitivity calculator

It's a frequent worry not knowing if your pre-amp or DAC could drive your amplifier. Making a decision solely on input sensitivity might not tell the full picture. Provide your amplifier's and speakers' data to the following fields, and click Calculate to get what input sensitivity actually drives your amp to its limit.

Basic data

These values are needed for the calculation.

Amplifier is rated for
Watts at
Ω

If there are multiple ratings available, choose the one closest to the impedance of your speakers.

Input sensitivity is
V rated at
Ω

If you don't know at which impedance the input sensitivity was rated, and the spec sheet doesn't say, it's very likely 8 Ω, don't copy it from the wattage rating and don't write your speakers' impedance here.

Speaker impedance:
Ω

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Optional data

If you're interested in how well a preamplifier or a DAC would drive your amplifier, provide its data here.

Pre-amp/DAC output voltage:
V

And if you're interested in what voltage is actually needed for driving your speaker specifically, provide its RMS power handling here.

Speaker power handling:
W