Andrea Del Signore wrote: > Hi all, > > sorry for the off-topic post, but since I'm a linux audio user from a > long time > this is the only audio group that I know ;) > > My question is: can I connect an Ibanez AW40ECE-NT guitar to a mixer > with > phantom power switched on? The guitar has a fishman pickup and an Ibanez > SST > preamp and I'll connect with the mixer using the XLR output, so the > connection > will be XLR to XLR. > I was wondering whether it would be possible to remove the phantom power DC voltage with a fairly simple circuit rather than having to buy another preamp? This is really a question to others on the list who know more than I do about electronics, rather than advice. My thought was that all you need is an RC high pass filter, set at a frequency of maybe 1Hz or less, plus some kind of voltage limiting device to remove the positive and negative going pulses that would occur when you first connected or disconnected the circuit (a couple of zener diodes back to back in series?) What I'm saying is it might be possible to build a circuit with only a few components which would remove the DC phantom power coming out of the mixer and still allow the higher frequency audio signal from the guitar to get through. As I said though, I'm not confident enough with electronics to come up with a design that I would trust to work on somebody else's (presumably expensive) guitar, just wondering out of interest if this would work in principle. andy P.S. Having written this, I thought I'd check if something like this exists already. I found these two pages: http://www.blue-room.org.uk/wiki/Splitters http://www.blue-room.org.uk/wiki/Phantom_Power which suggest that you can remove phantom power from a cable using something called a transformer splitter. _______________________________________________ Linux-audio-user mailing list Linux-audio-user@xxxxxxxxxxxxxxxxxxxx http://lists.linuxaudio.org/mailman/listinfo/linux-audio-user
