Nope, they are more than loud enough at my sitting distance, which is about ten feet or so.
I live in a huge loft and running them as 2.0 instead of 2.1 doesn't make much difference. My sub is a rather cheap one which I'll probably replace sooner or later, but I can run these speakers full range and they handle everything I throw at them well. If I wanted more SPLs I would just get a front stage of EON 615s which was my original dream speaker, but now that I have these and they cost half as much and provide ample SPLs, I plan on getting a full set of this LSR line. I am super satisfied with the sound output and clarity, and I've owned Klipsch KL-650 THX horn speakers powered by an Emotiva amp, as well as some B&W speakers. I think these are perfect, I'm so glad I read this forum! Otherwise I would have speakers 2x as big as they needed to be. If you run them not full range and with a sub, I don't see how you could need more power or SPLs unless you're in a huge room.
My loft's theater area (semi closed room) is 22 (deep) x 11 (wide) x 13 (height). The SPLs of the Klipsh were overkill and I had to put the volume up to get the dialogue clarity that I get with the 308s at lower volumes. I'm glad I sold all my old stuff, this is much more minimalist and bang for the buck, better than what I had before in many respects.
I like these 308s a LOT more than the demo of the muddy sounding B&W 685s I heard at a hifi retailer. That demo convinced me to go with JBLs instead and try my luck. I'm so glad I did, because otherwise I would be feeling like I'm missing out on midrange clarity as well as bass extension and stereo separation / imaging too.
JBL FTW! They've got a hit on their hands. Good job guys.
Last edited by RLBURNSIDE; 08-28-2014 at 09:14 AM.