Topmusicanswers
In a Parallel Loop the signal of your amp is NOT routed through the effects unit but it stays inside the amp. The effects signal on the parallel input (Return) is mixed by a (Level) potmeter with the signal of your amp inside the amp. Therefore, the sound of your amp can not be affected by the effects unit.
What is the FX loop on an amp for?
An FX Loop is essential an insert point in your amplifier circuit that allows you to insert a piece of gear after the preamp circuit, but before the power amp circuit. Some guitar players are happy to run everything into the front end of the amp, and others prefer to insert certain effects types into the loop.
What effects go in effects loop?
You can put almost any effect into the effects loop input/output on your amp, including delay, reverb, chorus, tremolo and boost. To set up your pedals with the effects loop, you'll be using the jacks labeled "send" and "return" on the back of your amp to create a chain, with your effects pedals between the two jacks.
