Hi guys, new to the forum... just looking for some input from people that are familiar with US Amps and RE Audio. I just dropped some cash for my new system, and was curious about your opinions on my choices. I haven't installed anything yet except the deck as the amps and cap won't be here until next week: 2001 GMC Sierra Stepside - (STANDARD CAB!) Head Unit: Pioneer BT9800 (Bluetooth rocks on this deck!) Subs: 2 RE Audio SE 10 inch (new logo) - will be wired to 1 ohm Enclosure: Custom Built Sealed @ .65 cu ft each (optimum according to RE) - 3\4" MDF (Air tight, trust me!) Sub Amp: US AMPS XT-4000d (2007) Front Doors: Infinity Reference 6.5" Co-axial (Existing, currently running off deck, and plan on upgrading soon) Rear Pillars: Infinity Kappa 4x6 Plate (Existing, currently running off deck, and plan on upgrading soon) Amplifier: US Amps 1600.4 (will be used "CONSERVATIVELY" with the above) Capacitor: 6 Farad Kole Audio Wiring, Fusing, Distribution Blocks, RCA Interconnects, Sound Dampening: Stinger Audio Battery: Upgrading to Optima upon install. Keep in mind, I am more interested in SQ vs. SPL, especially in such a small cab, but I could only afford the XT line. I plan on keeping all my gains low- I want Loud but Clean. I do have a couple of questions though: 1. I am planning on running 4 ga high strand power to the cap and I am now wondering if I should have run 0/1. 2. Will I be ok with the stock alternator 100Amp, considering the Optima Battery, 6 Farad Cap, and doing the "big 3" especially since I am going for SQ? 3. Can someone please tell me the fuse ratings and input power gauge for these 2 amps.