Your idea to connect the Bugera HP output to the Fx return of the Marshall will work but it is not ideal and if not done carefully and correctly can cause damage. The Bugera output looks like it can be reduced to .1w and you should definitely do that if you do make the connection as you've outlined. The Marshall Fx return is designed to receive line level output and not headphone output. It is easy to overdrive the signal.

A better solution would be to send the Bugera output to a mixer and send a line level from the mixer to the Marshall Fx return. You may also get fair results using a headphone to line level converter but you can get a used mixer for the same cost and will likely find it more useful for other tasks in the future.

Last edited by Charlie Fogle; 05/19/18 10:12 AM.
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