Just finished this enclosure some time ago. Everything was done with supplies from Walmart and Home Depot. I've always wanted to build one but time always prevented it. Now that I work at home I figured I'd get rid of my QLogic box that housed my 12" shallow mount Excelon sub. Took me about two weeks of maybe 2-3hoursof per day working on it. I had a pre-existing 5 channel pioneer amp pushing the Excelon KFCX6903c set. Came across a Massive Audio DSP with 8 channel out. The front stage sounds great, although not completely dialed in. There's a hum which may be the DSP or the Stinger 4000 RCA's. Overall I'm happy for now.