I had the opportunity to demo an Everest at Kyle's house recently and figured many on the forum would be interested in the results. Kyle was a very gracious host and set up the Everest on very short notice so that my friend and I could demo it. I have resisted to posting to this point as I would really like to keep this from turning into an SVS vs Acoustic Visions thread as is likely to occur. First, a little background on my setup. I have an SVS Ultra driven by a QSC RMX2450 in a very large room(6000ft3). My friend has a 20/39CS+ driven by a Samson S1000 in 4500ft3. As a point of reference, my Ultra easily exceeds 100db at 20Hz in my very large room. Now on to the Everest. Kyle has done a wonderful job with this sub. The finish is a very high quality veneer and the binding posts, 2 of them (one per Tumult) are very nice WBT connectors. This sub is a beast! I knew the dimensions of the sub before hand but was still surprised at the size of it. The cabinet is 1 1/2" thick, approximately 48" tall and 24" wide by 24" deep. Don't let my description fool you, the footprint of this sub is manageable. Just make sure you have a friend or two to help position it as it weighs 400 pounds! Kyle is currently using 2 1000W RMS Adire plate amps (one per Tumult to power his Everest. His theater is roughly 2000 to 2500ft3 although it is open to the rest of the house. We ran SPL tests with a few different DVDs. I'm sure many may be dissappointed with the fact that I cannot give maximum SPL numbers for our tests. Not because we didn't take any, but because our ears gave out long before the Everest did. On the Monsters sock scene, we hit 117-118db on the Rat Shack (uncorrected)! On numerous battle scenes in Gladiator, we hit 114-116. On U571, I cannot remember what we recorded but I do know it was enough to momentarily blur my vision. This sub went so low, so loud it was scary. I think Kyle's F3 claim of 18Hz is conservative. In room response is obviously lower. If I remember correctly, he had the sub roughly 2-3db hot.Dare I say it is overkill in a small room. We listened to some music as well with Kyle using Adire kit 281 as mains. With the gain turned down a bit, the sub blended seamlessly. As a side note, I am traveling down to my hometown, San Diego and have arranged with Adam Reiter to demo his B4+/Rocket setup. I currently am running a Polk Lsi setup so it should be interesting. Thanks once again Kyle for your hospitality, it was alot of fun!