Which brand is best were money is no option?? Very hard question as there is no real defined answer for this. Alot of it comes down to personal taste on the SQ side of things. Some good quality brands for amps include Audison, Trutechnology, Zapco etc. For speakers there's Focal, Dynaudio, Morel, Subs will include brands like Beyond audio, Rockford fosgate, Digital design for example. As dansedgli said, ALOT more expensive can be had, for example, Rainbow made a set of two way splits that retailed for around $14,000 aus mark :O There's a universe of brands out there, so as I said, a very hard question to answer....