I've always heard there is not such thing as a stupid question...so here goes.
I've been running a pair of SDA 2b's forever and was looking for something a little different. I had been running the SDA's off of a Pioneer 94txh for years. I was looking for something with a little more punch and ended up buying a SC-05 from Mantis a few weeks ago. Around the same time I purchased a pair of LSi 7's off of Ebay and I am falling in love with them. I have been running the LSi's off of the SC-05 since I got them and they sound awesome. I have heard many times about the ability of a receiver to run a 4 ohm speaker, so I decided to hook up my Adcom GFA-5400 today to the pre-outs on the SC-05.
I thought I would hear an audible difference when I added the GFA-5400 and I can't say that I do. Don't get me wrong, they still sound great - but I thought it would be pretty noticeable (especially at lower volume). I want to make sure that there is nothing else I have to do - I guess I'm not sure the GFA is actually powering the front two channels. I ran an interconnects from the left/right inputs on the adcom to the front L/R pre-outs on the SC-05. Is there anything else I have to do? I pulled the GFA from amp duty in the garage where it was running a pair of SDA 2a's through an Adcom GTP-450 and it was working flawlessly, so I'm pretty sure it's working fine. The manual for the SC-05 leaves a lot to be desired, so I thought I would ask here.
Thanks for your help