Jeff Rowland with Rel sub

As Drubin says, the REL is designed to be connected to the speaker outputs of your amp.....i've owned a few Rowland pieces and have a Storm III and can't remember anything different about the speaker connectors...

if you were planning on using some Pre-Outs, don't, the REL sounds better at the speaker outputs.

What I was told, but do not understand, is that the Rels were not designed to connect to a differentially balanced switching amp which I guess is a digital switching amp.?. It hooked up fine to my Concentra, but not the Concerto. It cannot be connected to the Balanced Hi Output on the back of the sub or it will not play or if it does will crack, pop and also the gain control will not work along with an audible hum. It was recommended to try the Low Level so I wanted to know if anyone had luck with this before I invest in a subwoofer speaker wire with the RCA jacks. Or if someone had come up with a solution that works for them.

I had problems with REL and a Pass Labs X-150 and never could get a satisfactory answer. It worked, but not as it should have. Perhaps you are encountering the same kind of issue, but it's still not clear (1) how you are trying to connect the REL and (2) what the result is. Have you tried connecting the REL to the speaker terminals on the Concerto? What do you hear?

I have a similar situation that didn't work out very well for me. I have a Storm III and have been using it for a couple years attached to an Odyssey Stratos amp with good results. I picked up an H20 S250 amp, which is one of the new digital ICE based amps and is also supposedly a balanced amp. Here's my horror story. I hooked everything up just like the manual said, I'm positive (I think ) I double and triple checked the three sub wires that go to the amp. When I turned the amp on I got a loud noice, something started humming and I smelled fried electronics. In a panic I powered everything back off. Luckily it was my sub that "fried" and not my speakers. The sub is unhooked from the amp, but has a loud audible hum when I turn it on. I've been too busy to follow up with Sumiko and Henry Ho to see if I did something wrong. I'm sharing this with you because both of our amps are supposedly balanced digital amps and like yo u mine worked like a champ before. FWIW, the H20 amp has two sets of speaker outputs. I had my biwired pair on the top set of posts and the REL on the bottom set and they were not touching each other.

I got noise(pop) and hum, but nothing fried. I am hooking to the speaker terminals as per instructions in the owners manual.