Dayton Audio Sensitivity measurement

[audio_04]

Hi everyone,

Does anyone know how Dayton Audio determines or measures the sensitivity specification of their drivers?

According to the attached datasheet, I would have expected this tweeter to have a sensitivity of around 94 dB SPL, based on the relatively flat part of the frequency response between roughly 2 kHz and 5 kHz. However, the datasheet states a sensitivity of 91 dB SPL.

Do they measure sensitivity at 1 kHz? Or do they take the entire usable frequency range (for example, from about 2.5 kHz to 20 kHz) and calculate some kind of average value?

I need to adjust the tweeter level to match the sensitivity of a woofer, so I'd like to know which SPL value I should use as a reference for this adjustment.

 

[voodooless]

You should really compensate for the waveguide: it boosts the low end significantly. Once you bring that down, the 91 dB aren’t so strange. Best to measure, not guess.

 

[staticV3]

According to the attached datasheet, I would have expected this tweeter to have a sensitivity of around 94 dB SPL, based on the relatively flat part of the frequency response between roughly 2 kHz and 5 kHz.

The frequency response graph does not specify the drive level, so is useless for judging sensitivity.

However, the datasheet states a sensitivity of 91 dB SPL.

No, the datasheet states an efficiency of 91dB @1W/1m. This is important to differentiate.