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@email-addr-hidden
http://lists.linuxaudio.org/mailman/listinfo/linux-audio-user
Received on Mon Jan 26 04:15:07 2009
This archive was generated by hypermail 2.1.8 : Mon Jan 26 2009 - 04:15:07 EET