I was kicking Phoenix Gold gear back in the day, pricey and well worth it. Phoenix is distributed by Trends ... something - you could get people feeling you from 4 blocks away because of your sub 20 hz frequencies pounding being recreated in proper distance fashion. The car that had me sold was a Corrado with a custom wood (2/4 + fibreglass) concoction sporting 5x 15" X Max carbon fiber subs, 5 ".5" 2000w amps, and 6 extra batteries in the trunk. Let's just say that the day I figured out what these subs could do, (what a smell coming from the car when this guy pulled up) turned out to be a sub that was fused so hard that it could be punched and not moved. That is not to say that this shows sound quality but I researched and pestered the audio guys in my area for over 1 year and finally got a system put together. The source equipment was on a budget but it was a serious contender on the other. I was finally most interested in SQ vs SPL because I did compile 4x 10" glass aramid cones Phoenix woofers in a Med-Bandpass box sporting two 11"x 4" air tubes. I could drain both my front battery and my isolated one (via the Phoenix competition 14.4 vdc bussbar array - still in storage) in under 5 mins, to the point where my 90 amp alternator was bouncing off the lower end of 9+ volts. When I gave sound advice here, it was because of all the mistakes and good reasons that people should upgrade to accomodate all the elements of their system and it fully intended use, so as to not stress the system as a whole.
Why do really good systems sound so good?
Designed using good principles:
simplicity,
isolation of NVH/electrical radiation induced from outside sources,
clean sound and high voltage transfer for noise rejection,
clean ground system that is not improperly shared,
proper fusing design and execution,
source equipment that is capable of the sound you expect and then can be transfered down the line,
you are only as clean and clear and close to the original source material as it was recorded if you follow these principles.
You don't necessarily have to choose a brand per say, just be sure that most people don't have problems with what you are buying. Have a place to test it out, even better if the shop has a similarily equipped box that you can just drop in your car to have a listen with before deciding, and finally, is it worth the money.
By all means go to your nearest audio superstore and grab a name you trust, you won't be disappointed as long as you buy something that is designed for the type of listening you do.
Lastly, enjoy your hearing while you have it. My ears used to be very sensitive so I adjusted my adolescent volume level to that of just shy of what the Police would pull you over for, but I think I should have just gotten over my testerone in that respect much sooner. Clean sound with a great setup doesn't have to be so loud you can't hear anything inside or out of the car you ride in. My two, three and four cents worth ....
