I have a Carvin SX-300 stack. I use Boss effect pedals. I tried running my regular pedal setup and plugging into the Front "input" (See attached picture "Carvin Head Front View"). Everything sounded horrible. I then noticed there is a "Effects Send" and "Effects Return" on the back of the head (See attached picture "Carvin Head Back View".
Would things sound a lot better if I used those inputs instead of the front input?
If so, what do I connect to what? I also included a picture (See attached picture "Boss Power Supply") of the Boss power supply which has a bunch of inputs; AMP, SEND, RETURN.
Any help you can give me to connect everything the correct way would be appreciated