The two mic stations are about 8 feet from each other with the EM158's being perhaps three feet closer to the sound source.
To what extent is the lack of or presence of the cardboard baffle responsible for the subtle tonal differences? Its hard to say with the data we have to work with, but I suspect not very much. It was easy to hear with the aid of this suggestion that the WM-61A's do indeed have more high frequency brilliance which is indicated in the right sonogram with louder (dark blue) harmonics at 5.6KHz, 8.5KHz and 12KHz and a little more (red) at 18Khz as well. After studying the sonogram, I put on the headphones and listened to the #2 strikes. The lessened response to low frequencies with the EM-158's might have contributed to your impression of the strikes standing out more. The greatest difference I hear between the mic capsules is in the low frequencies where the WM-61A's have a stronger response. They sound pretty similar to me despite the baffle discrepancy. Both mics are powered from the Hi-MD's PIP input. The folks at Sound Professionals use the Panasonic WM-61A capsules in their mics so I substituted the manufacturer's model number to be more precise.
I added a sonogram of just the 2 o-clock strikes from the two rigs/capsules to add to the data. You made good choice in taking your two samples from the same test so that the capsules' responses to the exact same strikes could be studied. If you find it won't drive 100' of cable unbalanced, you can try a balanced line driver between the capsule and the 100' balanced mic cable.Hi Anthony C. I'm not sure it will work for as long as 100' but it might: the output impedance is low as there's a FET built into the capsule. Generally, I use a short length (an inch or less) of twisted-pair unshielded (it's hard if not impossible to solder coaxial wire directly to the capsule) and connect that to RG-174 coaxial for tens of feet or more. I haven't gone as far as 100', but I have used tightly twisted pair wires for 20' with no hum problems. I would guess that the schoeps circuit is best, after all, and I needn't reinvent the wheel, especially as a newbie.
In some cases I will be running more than 100' of mic cable. Running long cables from an unbalanced mic source. Frying the capsule with too much voltage. I guess I'm too scattered to mention that I am worried about two things:ġ. Mike Jaspers wrote on Mon, 16 August 2010 13:24
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