Got the answer for my first question.
Now question re: gain settings.
'When I set the gains, should I play 50Hz and setup with voltmeter to have
for 500 watts at 3 ohm?'
RETROFITS: LCI Conversion - LCI Xenons - LCI Tail lights - Memory heated seats -
Folding mirrors with auto-dip - Rear PDC - CIC with DAB Plus - Combox - 6FL - 6NF
- 6NR - BMW live & Internet
MODS: Eibach Sportsline - AluFelgens CS7 - JBL MS-8 - Gladen components - SWS-8