The Y split worked fine, I didn't notice any more signal loss than any of the other two types of splits, but on the condeser I was using there was a small amount of loss compared with the same mic connected directly to the mixer. ![]() Ok, so I tried a test of a hard wired Y-split, a split with one side going through a resistor as well as a split with one side going through an electrolytic capacitor. Keep the other through shields isolated from the box, and just send them right through from preamp to mic. ![]() So I'd suggest taking the phantom power preamp's shield through the box and down to the mic, but letting the non-phantom power preamp's shield go only down the cable from the preamp to the box, but no further.Īlso, if you're building multiple splitters in one box, I'd only connect 1 preamp's shield the box chassis. The shield NEEDS to be connected to the preamp whose phantom power isn't blocked, though, for the obvious reason. You could get a ground loop between the splitter box and the pres. Ideally, the shield shouldn't be connected to both preamps. The voltage rating should be at least 50v, probably go with 63 volts, and I'd use non-polarized electrolytics since either preamp's phantom power could potentially be on or off at any given time. for transformerless preamps you can probably go lower. 100uf is probably a good starting point, but if you've got an older transformer input preamp you might find you need something higher. The value you should use kind of depends a little bit on the preamp. If you want to block phantom power, use 2 electrolytic caps in series with both leads on the split you want to block. I can't think of a real good reason to do it when taking 1 mic into 2 preamps, though. If you were trying to mix 2 mics into 1 preamp then maybe resistors would be a good idea. What Ohm rating should the resistors have?Īlso is there a way to isolate one split from phantom power? what if I were to permanently lift the ground, that would certainly not pass phantom but what are the reasons this should not be done?Īny other input on the subject is welcome. If I want to use resistors should I put a resistor each across the hot and neutral legs of the output? Resistors are much cheaper and in my mind could provide a mic with the amount of resistance it wants to see. I read the post from a couple years ago on here about using resistors. I couldn't find a price on Cinemag but my guess is that they are too. ![]() Transformers are the right way to go but the Jensens are cost prohibitive and so are Lundahl. There are a number of reasons and what I want to know is if there is a way to do it without buying 16 trannies. In doing some research for a mic splitter I'm building it became obvious that I should have one isolated out and one pass through instead of just building essentially 16 y-cables in a box.
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