I eventually got around to installing a second amp and a subwoofer in the boot today, the sub is only an 8" model but christ the whole setup sounds great! Heres what I have in place at the moment:
JVC KD-SH55R CD reciever
JVC 12 disk CD changer
Rockford Fosgate Punch 400W RMS 4-channel amp
Sony XM-502X 2 channel amp (130W bridged for sub)
Rockford Fosgate componants up front (50W RMS per channel)
JBL 6x9s (50W RMS per channel)
8" sub in homemade enclosure
1.2 Farad Powerflow capacitor
Boot, quarter panels, parcel shelf and doors soundproofed
While it dosn't look all that neat, the system sounds the business. Good
thing I soundproofed the boot! Anyone else have any decent audio kit installed?
Ciaran