
Originally Posted by
jhnkvn
Well, you'll best be going for raw drivers + amplifier + sub route. I believe there are Lightning Lab raw drivers (by raw driver, we mean individual drivers - tweeter, midrange, midbass rather than the common component set) that are pretty affordable but, according to a friend, is better than his old Cadence ZRS set (although you could go the Cadence route too.. pretty affordable at 6k). For the amplifier, you'll be looking for high-wattage amplifiers.. something in the line of DC120.4 would costs you around 13,000php brand-new. In the case you'd want to save, you could also go for some V12s for the meantime but jumping straight to a good amplifier is an investment. For the subwoofer, you'd be looking at brands such as DDs and REs - larger the cone area, the better.
For the head unit, it need not be that fancy unlike when building a SQ competition car. However, a head unit that outputs a higher pre-out voltage and has at least some tuning capabilities is preferred. Some installers even go the extent of suggesting line drivers to increase the pre-out volts.
Most of your expenses will go to your amplifier, subwoofer, and.... fabrication.