rkc said:
My first experience with Martin Logan ...
From what you describe it sounds like your system lacks the sparkle that you expect. The delicate, but as you describe, non-stressfull air that stats seem to have.
First off, your SL3 will never do what the CLS does. I've had SL3's, CLS's, Innersound Eros', and ReQuests and found the Eros and Request were the only ones that came close to the CLS in terms of midrange and 'air'. So while it can do a lot more than what you are getting right now, it has it's limits. But I think you'll be able to get where you want to go with the SL3.
However, I think the weak link in your system is the AE3. Coupled with the Sunfire amp I think it's 'dulling' your system.
Keep in mind that interconnects and speaker cable are usually a complement to your components, so cables that sound good on one system might not sound good on another, so I would recomend you attend to the components first.
Keep the Pioneer, Modwright does good work and your current source isn't the limiting factor.
Carver tried to get a 'tube' sound by dulling the treble of his components, and I think some of this sound trickled into the Sunfire components. But, I think you can get by with this as the AE3 is the big problem. Personally I think the AE3 is tuned for horn components where it's less airey sound offsets the brittle nature of horns (older horns that is, I've heard some that really impressed me, and a lot of them that didn't). When I connected the AE3 to La Scalas, it sounded great, on the Logans...not so good.
If you like building your own components and want to experiment, build a Foreplay. I found the Foreplay to be more more detailed and airey than the AE3. Fully modded the Foreplay is still butt-ugly but can stand up to a lot of heavy hitter preamps. But, more importantly, I think it's more bright and forward sound, compared to the AE3 would suit your tastes.
An out-of-the box recomendation would be to get a BAT VK3i preamp and Bel Canto 200.2 amp. Both of these are very detailed units and I think complement the SL3's well. Used on Audiogon they can be had for about $1k each. However, that is not to say that there aren't other good suggestions out there. I throw these out as focused suggestions.
Personally I think you are looking for a more dramatic difference than calbes or treatments would offer, but definitely address those once the components are lined out.
James