Author Topic: instrument to line level, and back again  (Read 1887 times)

aballen

instrument to line level, and back again
« on: August 22, 2013, 01:18:17 PM »
I'm working on an pedal based on the BTSE-99FX, on the schematic it notes "line level" for input and output.

my understanding is that instrument level is lower than line level, so my questions is can I simply adjust the level with an opamp going in, and again with an op-amp, or simple volume control going out?
So many builds, I just can't list them anymore.

g_u_e_s_t

Re: instrument to line level, and back again
« Reply #1 on: August 23, 2013, 06:22:45 PM »
yes, you can use either an opamp or JFET amplifier on the input, and the output can just be a resistor divider.  take a look at some of the pedal schematics if you want some ideas for amplifier designs.  most use non-inverting designs, to get the high input impedance.