Hey, so I’ve got a story to tell just in case YOU are ever in a situation where your reverb doesn't work on a Fender RI amp... I own a 2014 Super-Sonic 22 1x12 that I like a lot (has the Jensen SD in it, which is dope), but I was looking to trade up. Got in touch with a guy that wants to trade his Tone King Falcon Grande for my amp (plus $) because its my dream amp. Problem was my reverb wasn’t working on my SS (didn’t work when I bought it off Craigslist). I assumed it was a faulty tank, because when I cranked the verb knob and tapped the tank I got splashing, but no verb when I was actually playing. So I bought a new tank to fix it up before I traded it... When the new tank arrived, the SAME thing happened. No verb, but got splashing when I tapped the tank. So weird. Even switched the tubes around to see if it was a faulty tube, even thought they all looked fine. I even switched the RW audio cables around to check for faulty cables. Nope, same thing. So, I’m worried that it’s an internal problem that will cost $bucks$, and I got discouraged. However, I decided to puttz around and switch the RW cables on one side — I plugged white plug into red, and red into white, but only on the tank inputs. I left the amp inputs plugged into the correct colors.. And it WORKED. My conclusion: The factory worker who made my amp put the wrong plastic colors in the input jacks. I even looked up the schematic online and confirmed this — the white should be on the left, and the red on the right going into the amp, but mine is reversed. It’s so stupid, and I can’t believe that I didn’t think to try this when I first got the amp. How silly. Anyway, just thought I’d share.