NEW MATCHING MICROPHONES
iSEMcon now offers matching stereo
pairs as well as matching triples and
quads within a consistent tolerance.
While matching microphones , it is cru-
cial to ensure that the frequency re-
sponse and sensitivity is identical
within a specified tolerance . Some of
our competitors state that their micro-
phones are matching or sell matching
pairs and you are not informed about
how those microphones might be dif-
ferent in frequency response and mi-
crophone sensitivity.
iSEMcon’s matching tolerance
To ensure realistic sound field meas-
urement and multi channel audio ex-
perience, each microphone is individu-
ally calibrated and selected to meet
our standard matching tolerance. The
matching tolerance is applicable within
the microphone’s entire frequency
range.
For the EMX-7150 the matching toler-
ance on frequency response is +/-
0.5dB and 1mV on microphone sensi-
tivity.
The matching process (1-4):
The first
stage of testing begins with the
selection of microphone capsules. We
filter capsules being close in their overall
performance (frequency and sensitivity).
The second
stage is the microphone
manufacture using those selected cap-
sules.
The third
stage focuses on final testing of
each microphone. This includes the cali-
bration procedure (individual frequency
response measurement) as well as sensi-
tivity measurement at 12V, 24V
