Hi All,
A bit of a long shot, but does anybody know if an '80s Marantz EM551 microphone would be compatible with a dbx Driverack?
Cheers, Carl.
A bit of a long shot, but does anybody know if an '80s Marantz EM551 microphone would be compatible with a dbx Driverack?
Cheers, Carl.
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quick net search seems to indicate that it comes standard with a 1/4 inch plug as in not balanced,
and without knowing bandwidth or linearity can it be trusted as a measurement mic?
if your not after something calibrated for critical measurements, as in comparisons before and after it may well be ok, just need to find a suitable matching transformer to make it work.
and without knowing bandwidth or linearity can it be trusted as a measurement mic?
if your not after something calibrated for critical measurements, as in comparisons before and after it may well be ok, just need to find a suitable matching transformer to make it work.
Hi All,
It does work with a jack to XLR adaptor, and auto-eq works, but it does seem to set an awful lot of HF boost!
Cheers, Carl.
It does work with a jack to XLR adaptor, and auto-eq works, but it does seem to set an awful lot of HF boost!
Cheers, Carl.
If it's a moving-coil dynamic, it'll likely roll off by 10kHz, and might well be tailing off below 150Hz, too, unless you're measuring close-in.
You can get used Behringer ECM8000s very cheaply on the usual auction site. If you've got a bit more budget, I love my Beyerdynamic MM1. It was about the cheapest I could find that comes with it's own calibration curve.
Chris
Hi Chris,
Thanks - that does seem to tie-in with the eq as it wants to apply +12dB at 16kHz! Bottom end seems reasonably ok though. The Beyer is a little rich for me so I'll look out for a Behringer. Thanks for the info.
Cheers, Carl.
+12dB at 16kHz is perfectly feasible, depending on what HF driver you're using.
Most 3" diaphragms will need something of that order - they're naturally rolling off above 10kHz or so anyway as they hit cone breakup, and constant-directivity horns lose on-axis SPL as frequency rises.
Chris
Most 3" diaphragms will need something of that order - they're naturally rolling off above 10kHz or so anyway as they hit cone breakup, and constant-directivity horns lose on-axis SPL as frequency rises.
Chris
Hi Chris,
Beyma TPL 150-H which are pretty much ruler-flat to about 19kHz, on paper at least. My hearing (at 55) rolls off at about 15kHz now so a little academic up there... Strangely, a friend's ears agreed with the HF boost, over and above what I would consider normal, and he is younger than me, though with a similar HF upper limit of hearing. The response as eq'd by the Driverack was at low level at 3m.
Cheers, Carl.
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