[quote author="seavote"]i'll be starting a g7 soon. right now im messing with bodies and grills. i'd like to make a grill similar to the gefell um900 and mount the capsule away from the mic body like the um 900. im stuck with the body shape as im using the standard gyraf by gustav pcb.(although i'm going to try to go as small as possible and taper the top of the mic body) i have a question about connecting the capsule to the circuit. i thought i read (maybe not) that there is some problem( or potential problem) the longer the leads that connect the capsule to the mic circuit are. if so can i compensate for this in any way? gefell seems to have done this sucessfully.[/quote]
Well, If you are crazy enough and have excellent machining skills you could try the UM900 type of body :razz:
I would say, it depends on what capsule you are using. If it is a Chinese stuff it might be probably not worth of going for all those complications.
I am not sure how Gefell got around the "long leads" problem, but IIRC, they are using miniature tube, so most likely they mount it in the body "mouth", i.e. close to the grill.
If you want to use G7 PCB, you could mount the tube separately (again, close to the "mouth") and then connect pins to the PCB with wires.
When you design the grill, remember, it is not anly a filter, but also a resonator chamber, with all reflections, diffractions, standing waves, etc. There are three ways of fighting it--1) avoid parallel surfaces, 2) absorb the energy 3) redirect the energy. Don't dismiss capsule saddle construction (or holder, or pedestal, or whatever else they call it).