Balanced XLR Output

[dpm309]

I want to add a balanced XLR balanced output to a bass guitar. I have attached the schematic I came up with using a Jensen JT-DP-E direct box transformer. Will this work? Also, is the 6.8k resistor needed?Thanks

[acheld]

Will this work? Also, is the 6.8k resistor needed?

It should work. It was designed for this purpose.  The frequency response supports using it for a bass.

I've enclosed a schematic for the "typical application."   This includes the 6.8k resistor as well as R2 and C1, which are intended to "lift" the ground.

I believe, but am not sure, that the 6.8k resistor assists in rejecting extraneous RF signals.  While you could certainly try to use the unit "bare bones" as you do in your layout diagram, I'd suggest using it as designed.  Including the ground lift and the switch to take it in or out of circuit.

Curious as to why you need a balanced signal for a bass . . .  And why not just buy a pre-configured box to do  the job as opposed to purchasing a component and wiring it up?

[dpm309]

Thanks for the schematic. This is for a bass guitar that a friend of mine is building and he wants both 1/4" and balanced XLR outputs similar to an old WalBass or Hohner,  My drawing was based on the Hohner B2a fl. They did not have a ground lift. Neither did the old Walbass'.