![]() ![]() RadioShack 33-2050 Analog SPL Meter, no longer sold. RadioShack 33-2055 Digital SPL Meter, $50 new. Calibrated by from 5hz-25khz RadioShack Analogue Sound-Level Meter 33-2050 (added later) Dayton EMM-6, calibrated 5-25hz is $75. The following meters and microphones were measured. This should be used as the reference in this comparison to see how the other microphones measure up. I just received my EMM-6 calibrated from Cross Spectrum Labs. The only disadvantage that I see in the Audyssey microphone is that I didn't see a calibration file online - apparently the guys doing the microphone measurements at AVSForum used the. ![]() The Audyssey microphone will also work, but it will require a mini-mono headphone/microphone adapter to connect to an external sound card, like the RS meter. Audyssey Pro creates a set of graphs showing the frequency response of each speaker measured in the room before calibration and the predicted result after calibration. By reloading a measurement file, an existing calibration can be fine-tuned by changing crossover selections and target curves, and by using the Curve Editor. ![]()
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