REL Stadium and Rowland 201's setup -HELP

My problem is not with the connection but getting the sub to turn on. I've got the yellow wire from the REL going to the LT+, red going to RT+ and black grounded to the amp chassis. Sumiko states that this should do the trick but it does not work. The REL is seeing ground from the chassis ground. If the black wire is removed from the chassis, humming from the REL occurs. I've done some research on AA and it appears that the PS Audio HC2 which is also a digial switching amp has a similar problem. I've seem many similar threads on dual mono blocks and digital amps with similar set up problems. If anyone out there has remedied this situation, your feedback would be greatly appreciated.

I believe that I've remedied my problem with the help of Sumiko. Rowland amps input- pin configuration are different from industry standard. When auditioning these amps, I did not have a balanced cables to use since my preamp, uses dual RCA on its balanced output. I had to use an RCA to XLR adapter. Because of this, the REL did not see the positive signal because of Rowland pin configuration. Unfortunately, I was not able to hear the sub with the Rowlands because I promised the dealer that I’d get the amps back in their possession by today. I’m confident enough with Sumiko's remedy and ordered the amps. Sumiko contacted a dealer who has a pair of 201's running with a Stadium III and came up with the solution. The dealer told Sumiko that once the pins are switched, the sub should work perfectly with the amps.

To answer Dublin’s question on how the 201’s sounded with my Thiels. When I first heard the amps in the dealer’s showroom, I was very unimpressed. He had them running to a pair of Focal.JMlab’s Alto Utopia Be’s, a Simaudio Moon preamp and Simaudio Moon Eclipse CD player through the Rowland 201’s. After doing a bit of research and urging from a friend who stated that the synergy of the 201’s with my Rowland Coherence preamp needs to be auditioned. What a pleasant surprise when I did this. This preamp-amp combo simply made my Thiels sing. My Parasound 2200 and Conrad Johnson tubes are the only other amps I’ve had in my system. The Parasound got it done with a nice bass and nice laid back sound. Maybe a bit too laid back for some. The CJ MV60 was wonderful with more non demanding music and moderate at best volume levels. The CJ improved my system and made the music sound fantastic with great highs and a wonderful midrange. If I’d have gone this route, I’d need a pair of MV60’s or a Premier 140 because of lack of bass or weight to the presentation. The Rowland’s just took my system to a different level. To put it simply, the 201’s didn’t make my system sound good, it made the music sound real. Crystal clear highs, a realistic midrange, and a decent bottom end. As earlier stated, I was not able to audition the REL with the 201’s.

I feel that some will be very satisfied with the Thiel 22’s 2.3’s or 2.4’s without a sub. I did not have a sub in with my Thiel’s for eight years. I only added a sub because of home theater. I thought that if was going to purchase a sub for HT, I’d might as well get one they will add something to my music. Now that I’ve had a great sub in my system for a couple of years, I don’t think I could every live without one. It just adds so much to the music. Now the crazy thing; all this took place with a RCA to XLR adapter and negative and positive pins reversed. I can’t wait to hear my system when I receive my 201’s with the correct cables and REL sub.

Solution has been found for high level connection.

Conventional interface of RED on RT+ to YELLOW to LT+ and BLACK to EITHER- works. I didn't think that a low level connection to a HT processor would make a difference but it does. The REL was using the low level connection as primary gound. When connected to the low level and attempting to connect as described as above in high level, the amps would not fuction making a clicking sound. Once the low level connection was removed, the REL and Rowland's functions properly. Now I just have to figure out a way to connect my HT processor and have both systems fuctioning properly when both systems are connect to the REL. I'm confident that a solution will be found. For now I have to disconnect either system when listening to the other.