powerbass = garbage IMO.. RF = great quality.
Why garbage? just because it isn´t as expensive as your RF??? i mean, i have a 400.4 for about 5 years now without any problems, i used an asa1500.1 and sounded awesome for the price, also ested the xta4000D and it´s a monster, it can take 0.5 ohms for music and 0.25 ohms for burps without any problems, not like your RF by the way
By the way, look at Pulse car audio videos using a pair of powerbass amps for a single DD 9515 hitting 157 dbs sealed on the dash, and then you might think again about saying is garbage, of course, i respect your opinion as your preferences by using RF wich i totally understand, but garbage?? yeah right
run that powerbass at .25 daily and see how long it will last.. when it comes to amps you should not cheap out.. sure the 4 channel ones may work alright.. but in the long run of going through cheap amps you could have bought one nice one that lasts years and years..
Dude if u havent tried one dont say anything we had a customer with 2 w7 run an asa 1500 on .5ohm for about a month