Alfa Romeo 156 Car Audio Web Site
Welcome to Lorenzo's Alfa Romeo 156 Car Audio Web Site !!
Still busy working on this site !!
The Alfa was designed to produce an SQ vehicle and the system have minimul impact on the original interior.
This is probably the most musical 156 in the world !!!
Equipment Used :
Alpine CDA 7949 cd/tuner
(using the digital/optical outputs)
Alpine PXA-H600 processor
(digital delay, phase correction, echo cancellation, parametric eq)
Orion DEQ 30 equilizer
(30 band, 1/3 oct digital eq NOT analog)
For all those that want to know, I sniffed the comms port on this unit & it seems like Orion (actually designed by ADS) haven't coded the RS232 functionality into the eprom to allow
1 x McIntosh MC440M amp (4x50 2x100 RMS @ 0.01% THD NOT 0.1%)
(BJT output stage and VERY clean sounding, the best amp I've heard so far !!)
2 x Soundstream Exact 10" subs
(servo subs ie. active feedback and placed in aperiodic enclosures to save the boot)
Dynaudio System 240 Splits
(very sweet/musical sounding, silk dome tweeters)
Spent days and days tunning and analyzing :
1/3, 1/6/, 1/12 RTA sound analysis
Transfer function tests
Impulse response tests
and LOTS of listening to music !!
Here is the work done on the doors :
The original door
Level 1 of stripping the door
The door fully stripped
Added damping material (DM) to the inside and outside of the door. The mid bass is mounted on MDF board.
Still coming :
Work done on the rear deck (rebuilt a copy of the original deck out of FB)
Sound analysis plots
Tranfer function plots
Aperiodic setup pics
Active servo circuit diagram