Hi.
I have a little problem.
I need to amplify Line Out signal for XLR input.
It would be good to have a volume control. And it should run on phantompower.
Can you suggest any schematics or what should I start with. I made some tests with 2n3094 but was not satisfied.
I hope some one has and idea.
A.
if you search the web for a DI box, that could do the trick
the one I know, H&K red box classic, does what you need: it takes the line level output and turns it to balanced (XLR) out, it can work with phantom power too.... and it's made by just a couple of opamps.
the circuit has also a cab simulator, you can drop that part and just save the rest. volume control can be easily included at input, putting a pot in place of the fixed resitor to ground.
I think I will start with this one.
http://www.generalguitargadgets.com/pdf/ggg_ca_iggy.pdf
But is there a schematic for it?