4 Cable Method - slightly dampened signal through chain? in Firehawk Posted January 19, 2016 I just brought this up in a different forum but yes! I do seem to get a cleaner less distorted sound on the patches that have no amp designation. If I use the fx block to utilize my amp's pre amp then I have control over my own amp's volume and channels like plugging into the front end directly. I think 4CM gives you more options if you love your old school amp. Some people are saying they prefer powered speakers.