LSi are so power hungry!

unc2701

I'm really suprised it worked that well in the 12x16 room... SPLs are logarithmic with room size AND wattage, so that's two big strikes. My modded SI amp just can't hang on the LSi's, but does great with the high efficiency fostex's... 'course my room is 26x12

SuperDave

Its true my receiver can drive the Lsi25's as long as I have them set to "small" with the sub pre-out hooked to the LFE inputs and the binding posts not jumpered.
But if you jumper the binding posts(they come that way) and set the main speaker outputs to "large" it will shut the receiver off at higher listening levels. When I first got these speakers I was advised to go with the first setup for home theater and the second for musicality(on this forum).
The receiver has a 4 ohm setting that sets protection levels higher because it is expecting a critical load. I left it there because I would rather have the receiver shut down than have damage occur.
The system sounds fine set at small with sub preouts driving the low end but I always felt and heard there could be something more. I recently purchased an ADCOM GFA-5500 online and am waiting for it to arrive. I can't wait to see what the difference will be. For the time being I will use the receiver for a preamp to the mains.

SuperDave
Yamaha RX-V992 (ADCOM GFA-5500 in transit):eek:
Denon DVD-1920
Sony XBR 27"
BrightHouse DVR
Polk LSi25 Fronts
Polk LSiC Center
Infinity RS1 Rears
Monster THX Cables

scottyf

I wish you could hear my system right now. I am powering my LSi15's with an Altavista-modded Counterpoint 100......and it is un-FREAKIN' amazing! I don't know that they need a ton of power (amp is rated at 100/8ohms, 200/4ohms) but they absolutely SING in my setup.

I brought a buddy who hadn't heard these speakers and was in the market for a pair, and he was blown away. I had to caution him that the amazing sound had a lot to do with the amp and preamp....he had his phone out to call Crutchfields and order the LSi's. He said (and I agree) that nothing in the shop at our local "high-end" shop can touch the sound of my system.
Needless to say, he is now looking for some used Counterpoint equipement to have Mike Elliott work his magic on.

I can't remember another system I've owned that has been this one's equal. Ever. I know even better speakers would do that much more for the sound, but the synergy is too intense to screw with. And I still need to do some room treatments!

Do yourself a favor, get a Counterpoint SA-12 or SA-100 and have Mike make it perfect. Or, you can get one of his brand new amps, Aria WT-100, for under $5K. You will hop off the audio-go-round. I have.

http://www.altavistaaudio.com/

organ

Scott,
Right on! That's awesome. Looks like we're going to have another member here at CP:).

Glad to hear the amp is working out great for your 15's. Keep the tunes rollin.