So what kind of system is everyone running and how do they sound?
I have 2 10" Kicker Comps with a 400 watt Audiobahn.
The lows are ok and the mids suck but I need a new box to cuz it don't have much air space.

 

Pioneer 6.5"s and 6x9"s, Eclipse 3200 amp, 12" Alpine Type-E subwoofer, Alpine HU, custom sub box. Prolly could use a pre-made box and get some better sound, it rattles real bad back there, some Dynamat would help too, but overall i'm happy with the quality of my whole sound range

 

ssl 1800 watt 2/1 amp, 15" audiobahn sub, premade sealed box, sony indash, audiobahn front and rears......sounds pretty loud for 1 sub, but ive always been a fan of audiobahn systems....the highs are clear....not the best system ive owned but definently good enough!!!!

 

JVC 6 1/2" front, and Factory 6 1/2" rear (will be replacedd by JVC's when they blow), and a Kenwood 12" sub with Jensen 1000watt amp(Paid $100 for the box, sub and amp). hooked up to a JVC headunit with iPod adapter

 

I have four Crossfire CF310Ds in the trunk in custom boxes, Pioneer 6x9s in the back, Kenwood 6.5s in the front, and some random dome tweeters run from an Alpine Head unit. The 10s are powered bya Jensen 500 watt amp. It's in the middle of a transitional phase, but I ran out of money. The 6x9s are mostly blown, the 6.5s are old, and I'm only pushing a whopping 75 watts to each sub, but it still sounds surprisingly good for almost no power. Overall it sounds muddy, as you might have suspected.

 

Alpine MRP-F550 90W RMS x 4. Alpine MRP-F650 600W RMS x 1. Alpine 12" type R sub, 2 Alpine 6.5 Type R Speakers, and 2 Alpine 6 x 9 type R speakers.

 

alpine 6.5 components in the front and rear with a rockford p400 amp running them. 2 alpine type r 10's in a custom fiberglass box that i made that fits in my wheel well with a rockford p1000 amp running them. and to top it off i have a pioneer d3 double din nav head unit. i also have two one farad digital caps to help out. retail for my system is about $3,400 which doesnt include the fiberglass box or installation of anything since i did everthing myself. but i work a certain major electronics retailer, and i got everything for nearly half off. hell my amps together retail for $1000 but i got them directly through rockford for about $350. The p100 is one ohm stable and puts out over 1200 watts rms at one ohm. my system is not only rediculously loud but sounds so incredibly good

 

fosgate 900 watt amp (bridged), fosgate cap. Two 12 kenwood subs, kenwood 6x9 and kenwoods up front. Sounds pretty good, i have "challenged" other systems that are twice as poweerful as mine and my setup comes out sounding clearer and louder than them.

 

alpine mp3 deck, kicker 12 cvr's, crappy jensen 6x9s. and a box olny made for bass so the lows are great but everything else sounds like s::t lol loud and clear when i fade the speakers to the front but mid basses are poop in my car. lol o yea and those 2 12s powered by a 600 kenwood amp come up louder than people bumpin 1200 real watts so im satisfied

 

AM/FM CD limited edition Honda Civic radio. 12 watts times 4. Beautiful blue display..... integrated climate controls.... AWSOME.