I replaced my JL Audio E-112 (2), with a pair of REL S/510, due integration issues. I was running my speakers full range with the subs working underneath, altho the subs sounded very good on some material I just could not eliminate some bass boom and hum. At times I thought it just might be the individual tracks. So I decided to get the REL.s, and the integration, for me, is much better, after getting the subs setup, I no longer have bass issues.
Maxboy00, I just looked at the photos in your system page. The REL S510s look great. May I ask if you have compared the dual REL S510s with SVS SB-3000 before going with the former.
The REL specifically the S510 is high in my shortlist based on its aesthetics and high build quality. I can imagine the high gloss black finish and silver cone to match the main speakers in my system. Other subs look slightly cheap and less elegant although sound quality may be stellar. Apart from sound quality, looks do matter in my book.
The only thing I don’t like about the REL is the price. One S510 can get me two units of SVS SB-3000.