Topmusicanswers
By running your effects in parallel you can keep your main guitar sound dry [unprocessed] and up front. Spatial effects like delay, reverb and chorus are intended to be parallel in normal use (although some of us are abnormal users).
What are parallel effects?
Parallel effects loops have just recently begun to surface. A parallel loop offers two paths from the preamp to the power amp. ... Most amps that offer a parallel effects loop have a variable mix knob, so that you can control how much of the effect you want mixed in with the dry signal.
How do I know if my effects loop is series or parallel?
The giveaway is the presence of a Mix control. A Parallel FX loop will have a Mix control, but a Series loop will not.
