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REL subs with Rowland Amplifiers

I'm having issues connecting my REL Carbon limited subwoofer to my Jeff Rowland 625 S2 amplifier via the high-level input. I connected my sub according to REL's instructions...yellow lead to positive on one channel, red lead to positive on the other channel, and floating the black wire(ground). I get minimum output when connected according to the instructions. When I use the low level input, the output is sufficient and the sub sounds great. Per my conversation with Jeff Rowland I need to ground the black wire by loosening a screw on the amplifier and connecting the black wire, but if it isn't properly grounded I may damage my amplifier. Is there anyone that owns a REL with Jeff Rowland 625 S2 amplifier or other balanced differential amplifier? If so, how do you connect your REL via the high-level input. Is there an easier way to ground the wire than unscrewing the screw on my amplifier. I just don't want to unscrew the screw and prefer another method of grounding the sub.   
ricred1
daveyf's avatar
daveyf
2,871 posts
 
 @ricred1   Good move on the Signal cables. Signal make some excellent cables at very fair prices, imo.
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almarg
9,670 posts
 
Signal make some excellent cables at very fair prices, imo.

+1.  I've used a couple of their Digital Reference power cords with fine results.  And Frank, the proprietor, is a class act.

Best regards,
-- Al



chazzzy007
540 posts
 
@ricred1 

Thanks for your initial thoughts on the Carbon limited. Look forward to hearing more. Enjoy!
calvinj
2,319 posts
 
Ricred1 I have a 212se. I like the rel because of nuance. It gives you enough bass but it doesn’t distract from the music. You hear low level bass strings better. The bass melts into the music perfectly for me and it helps the lower midrange a little so it is a smooth transition. I’m thinking of getting an addition 212se
ricred1 OP
2,019 posts
 
calvinj,
I've owned dual subs several times and never thought much of it. At one point I had dual JL Audio F110s with the JL Audio CR-1 external crossover and preferred a single JL Audio F112 v2 without the CR-1. I added a second REL last night. Let me just say, it isn't the bass, but adding a second REL just opened everything up a tad more. My wife was listening to her favorite song and said for the first time she could hear fingers slide down the guitar. She went on to say it's easier to hear the music. So, if you get results like I have, as a music lover you owe it to yourself to get a second 212se.
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