Rob Edwards

I have a CDR-220 (modded so by Stefan so the screen is visible at the viewing angle in a 928, an important detail if you want to go this way) and one of Stefan's adapters that converts it for use with the factory power connector and 8-pin DIN cable that runs from the head unit to the factory 6-channel amp. (The DIN cable runs from the center console down the right side of the transmission tunnel under the carpet about where your left knee is if you're sitting in the seat. Here's the run under the carpet (the rectangle thingee is part of the cable retainer setup that holds everything flat against the tunnel):







FWIW I paid $485 for the combo from SW Stereo back in 2006. Hopefully it's cheaper by now.... Here are a couple of threads on them, with pics of the adapter and its interface with the factory wiring:


https://rennlist.com/forums/928-foru...he-cdr220.html

https://rennlist.com/forums/928-foru...ereo-lead.html

https://rennlist.com/forums/928-foru...f-antenna.html

Mcardenal

Check out this little beast:
http://www.jlaudio.com/xd600-6-car-a...plifiers-98262

Its got all 6 channels in one nice neat little package. This is my plan B option and I think it has the crossover built in.

Mcardenal

Quick Dimmensions

Mcardenal

Height (H) 2.05 in / 52 mm
Width (W) 10.23 in / 260 mm
Depth (D) 7.09 in / 180 mm
Net Weight 5.8 lb / 2.63 kg

Rob Edwards

Pretty sure that JL won't fit under the cover (though it looks like a really nice amp. I had a JL in my GTS for a while. )

Factory amp dimensions:


Height:2-1/8"




Length 7.25"



Width 6.5"

White Lightnin'

I have mine mounted to the rear seat backs... clearance under/beside the passenger seat is not enough.

Mcardenal

Thanks for confirming my thoughts.
I probably would try ti mount it somewere in the cargo area.
SIDE NOTE: The quality of the responses on this forum are amazing! I guess it is a special person that owns and enjoys a 928

Mcardenal

Didnt want to forget to say Thanks! for the feedback.

Hilton

Thanks for those measurements Rob. Updated my "amp sizing" spreadsheet

928mac

My JL amp is mounted on the back left rear seat.
wires hide nice right down close to the bat for good power.



and the JL crossovers are sweet and will fit in the door same place as the old one.

Randy V

@ doc

docmirror

Oops. I'll turn in my slide rule now.

Hilton

I finally found a 4-channel amp which is a good fit to replace the stock 10-speaker amp (89-95). A Soundstream PN4.320D . More info in this other thread:

https://rennlist.com/forums/9879628-post48.html

The other location I considered hiding an amp is inside the rear centre console - obviously not an option for those with rear AC. I still prefer the stock amp location however, so it doesn't sacrifice storage.

I've been reading amp specs and have a spreadsheet of dimensions of the various amps on the market, and this soundstream one is the first decent candidate I've found which is a positive "fits in the stock location".

Prior to this, the nearest two candidates I had in my spreadsheet were:

Alpine ktp-445U (not bridgeable and low power, but small)
JL Audio XD400/4 (little too long once you figure on connectors, at 8.5x7x2")

ammonman

I am in the process of installing the Alpine KTP-445U along with a new Blaupunkt Toronto 420 BT head unit. I can verify the Alpine fits nicely under the passenger side carpeted cover in the stock location. I will post back how it sounds once I get it finished up and commissioned today.

Mike

kurt_1

I am in the process of replacing the original old Blaupunkt Berlin IQR 88 system with new parts so I thought I'd share...

The head unit is a Blaupunkt Toronto 420BT which I feel looks reasonably contemporary.

The head unit drives the front and rear speakers directly. The woofers are driven by a Blaupunkt THA 275 amplifier through the pre-amp out of the head unit. The amp can handle the 2 ohm speakers and fits in the factory location. The aluminum brackets of the stock amp were modified to fit the new unit.The amp has a low pass filter with adjustable cut-off and adjustable input sensitivity.
It works and sounds well with the project 9 door speaker kit (to my ears, at least).

Enclosed are a few pics taken during the installation process.

Kurt