First off let me say that Kyle was right when he said I would be addicted. Before I even finished this project, I was planning the next. Now to the good stuff. I started my Shiva Sonosub about 2 weeks ago and all I can say is this thing is sexy. A term normally reserved for my wife, I'm loaning it to my sub. I didn't think I could create something this nice with my own hands. The Mahogany stain on the birch it just so purty! A little background. My wife and I purchased our first home a little over 2 months ago and my Sony sub just couldn't cut it. After spending countless hours on this site, I just knew I had to have my own sub. I was contemplating a SVS but since I have a new house and no tools, I thought I could use the sub as justification to buy some. About $200 later I had tools. Home Depot for supplies and Acoustic Visions for Shiva, 300-793 PE Remote Amp, and 4" Flared Port and I was on my way. Finished it Friday and wanted to give it a full 24 hours for the caulk and glue to dry so yesterday was the day. I anxiously sat my happy butt on the couch, calibrated to 75db, with the sub a wee bit hot at 78 and started off with Monsters' Inc., when Boo cries. Good Lord, Oh My God! I could have sworn my house was coming down! Wife and dog head for the hills, she's about to blow! Now, wanting more, I pop in Fight Club, Psycho Boy scene, and crank up the volume a bit. Oh, ooh. Problem. My sub just starts fluttering, bottoming, I dunno. Amp is dialed in at only 1/4 way, receiver set to -3. This can't be right. This puppy has to have more juice, right? What could be causing this? Slightly distraught, I pop in SW:TPM, pod race, same thing at a higher volume. I back it down a bit and it's fine. I'm not even using the amp's potential so I'm hoping this is an easy fix. I'm open to any and all suggestions as I've probably sank close to $600 into this sub and I KNOW this can't be it. Sorry for the length but I know you guys can help me out. Thanks to Patrick and Warren and Dustin for creating the web pages that served as my template. Because without you guys, I probably would have never realized the joy of DIY.