Head units: I've had good luck with Alpine units, I've used four of them, and ever one has done exactly what I needed it to do. Not saying I won't try other brands in the future, but Alpine's been a pretty solid unit IMO. Amplifiers (Car): Even though I really liked the Avionixx 800.2 I had, nothing short of a Butler is going to replace my PG Tantrums, as far as I'm concerned Excellent power/price ratio, simple to use, and haven't given me any problems. It's a shame they stopped making them...I'm not selling my T1200.1 and T500.2 anytime soon. Subs: Even though I'll be trying out a new sub shortly, I'm still keeping my Elemental Designs e12a.22 - for the price, it's an excellent driver. Also a shame that it was discontinued. Amplifiers (Home): For solid-state, the best I've used would have to be my NAD 3020. No frills, just really good quality sound. For tube gear, Decware stuff is the best by far for manufactured amps, the rest are DIY. That's another story in itself, though...