Audyssey mics seem to be within their specification of +/-2 dB of variation between samples. without:ĭifferences between connection method: preamp sound card front panel input sound card rear panel input:ġ. vertical position:ĭifference between mic with foam block vs. Note that bass drivers are connected with reversed polarity:ĭifference of horizontal vs. Measurements are taken from 30 to 50 cm distance between tweeter and midrange axis, except for polarity measurement which is taken at 20 cm distance from bass driver running full-range, approximately 30 degrees off axis.ĭifference between samples, mics in horizontal position:ĭifference between DIY mic and Audyssey mic, both in horizontal position:ĭifference in phase between Audyssey and DIY mic. Speaker used consists of two Fane Sovereign 8-225 in sealed box of approximately 60 liters volume crossed actively to ACR TT50 midrange and 22TAF/G tweeter the latter two crossed passively at around 5 kHz. As per datasheet, DIY mic has around 5 dB rise from 3 to 10 kHz, then falls off. I took two random samples of Audyssey AMC1HB microphones (serial numbers 070214) and a DIY microphone using POM-2738P-R 6mm capsule (uncalibrated) for a comparison, using DIY mic preamp connected to Asus Xonar DSX soundcard line input. Hi, I'm digging up this old thread, because I made some mic comparisons and think that it may be of interest to this community Are there any generic calibration files available for horizontal use? How about vertical use?Īnd last, does anyone have experience, knowledge or suggestions re: using the Audyssey MultEQ microphones in speaker measurement and design? Care to share? and consistency for horizontal use? How about vertical use?Įven though they are reportedly quite flat, that can be improved with a cal file. The mics are designed to be used in the vertical position:īut for nearfield and other typical speaker measurements, mics are usually used in the horizontal position: It sure would be nice to have information available on how to use these mics for speaker measurement and design. Nice!Īny Audyssey enabled HT receiver comes with one of these mics. These mics are very solid and even come with a brass threaded insert on the bottom to use them on a tripod. Unfortunately all I have seen concerns use of the mic for room eq. But recently, I have read on the net that they are quite quite flat and quite consistent. I have a couple Audyssey MultEQ microphones from a couple HT receiver purchases (see pics below).
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