How do I hook up a subwoofer for 2-channel

Like Raytheprinter asked you best need 2 preouts of your preamp 1 pair L+R go to the amp for main speakers, the other pair each L and R goes to each subwoofer's L and R inputs ( signals will sum up anyway ) or use y cables.

If you are going to use Rel - take a look at the following link for instruction on how to connect the REL.
http://www.sumikoaudio.net/rel/manuals/ST-Series-Manual.pdf

Raythrprinter
Yes I do have two main outs on my current pre amp main out 1 and 2. which is better using the rca conection or the speaker conection?

Thanks Russ

Russ, Most subs will have the L+R rca input and one of those might say mono. Think home theater where the processor has only one sub out. I run 2 subs with 2 channel and I hook the L pre out to the L sub in and the R pre out to the L pre in to the other. It's still the right channel but I use the L because the gain of my sub is different if I just use the L/mono input. Different subs may vary, just make sure you read the owners manual or ask the manufacturer. Good luck.

Dear Russb: The main target of the REL subs is to augment the performance on FULL RANGE SPEAKERS ( you can read it in the page #18 of the REL manual ). Your ML aren't FRS, that's why you are looking the integration of two subwoofers. The REL subs aren't, really, for a true stereo integration, normally are designed for to run in mono way.

The own ML subs and Velodyne's can be very good alternatives.

If you want really to have a quality sound reproduction improvement from your audio system my advise is that that subs integration should be in a TRUE STEREO WAY.

Please read carefully these links about:

http://forum.audiogon.com/cgi-bin/fr.pl?eanlg&1117893153&openflup&27&4#27

http://forum.audiogon.com/cgi-bin/fr.pl?eanlg&1117893153&openflup&31&4#31

http://forum.audiogon.com/cgi-bin/fr.pl?eanlg&1117893153&openflup&4&4#4

Regards and enjoy the music.
Raul.