Okay good enough for me. Don't want to over think it, just replace the ancient speakers in there. I'm going to order the Pioneer A series.

Amazon.com: Pioneer TS-A1375R 5-1/4" 3-way car speakers: Car Electronics

Amazon.com: Pioneer TS-A4675R 4" X 6" 3-Way Speakers: Car Electronics

These are the pics.http://forums.pelicanparts.com/uploa...1388200579.jpg
http://forums.pelicanparts.com/uploa...1388200608.jpg
http://forums.pelicanparts.com/uploa...1388200645.jpg
The fronts fit good. The backs needed a thicker grill. Found these on amazon there by audiobahn

Here's what came out of the car. Blaupunkt with disintegrating paper cones. Just about anything from this century should give me a pretty sizable bump in quality.

http://forums.pelicanparts.com/uploa...1388245578.jpg
http://forums.pelicanparts.com/uploa...1388245598.jpg

Porsche had a spacer available for some of the 4x6 speakers. I think it was a part used on the 944. I have a pair if someone needs them.

JR

I machine covers from ABS to the same size and profile as the original, with the exception that they are raised to accommodate newer speakers with a higher tweeter.

http://forums.pelicanparts.com/porsche-911-used-parts-sale-wanted/789182-rear-speaker-covers.html#post7827274

http://forums.pelicanparts.com/uploa...1388258053.jpg

If you're interested please see my ad on the 911 for sale forum.

Cheers

if you ever make a 5 1/4 round front PM me.... those look great.

Not sure I'll get around to making front covers/grills, as there's plenty of availability for them, if I do I'll drop you a note.

Cheers

New speakers installed
 

Following up - I went with Pioneer's top of the line "D" series, which are available on amazon for literally few bucks more than the "A" series. They drop right in place and fit comfortably under the stock grills. They sound great for their size, and fulfill their mission nicely - letting me listen to music or news, at any speed, with a reasonable degree of quality. At less than highway speeds they even sound pretty damn good. And all this without any rear speakers - those were backordered and arrive next week.

Amazon.com: Pioneer TS-D1302R 5.25 In. 2-Way Speaker with 180 Watts Max. Power: Car Electronics


Difference in materials and magnet size is hard to miss...
http://forums.pelicanparts.com/uploa...1388432807.jpg

My rear Pioneers arrived. They don't seem to sell 4x6's in the top of the line "D" series so I bought the "A" series. They look a little cheaper, showier, but they sound pretty good. Anyone who says rear speakers don't do anything... should try a before and after. I'd venture to guess the rear glass helps in reflection.

However... these speakers don't fit under the stock grills and I'm presuming they will also not fit under the perforated grid style speakers shown by Uwanna on page 1 of this thread. The repros that Matt Kellet posted above seem like they will work and I love the stock look, but they're more than twice the price of my speakers...

So I'm debating returning the pioneers for a set of "plate" style 4x6's that may or may not sound better but will almost certainly fit the GRILL. Whether or not they're deeper on the bottom side as a result, I don't know. Can anyone weigh in?

http://www.amazon.com/Polk-Audio--6-Inch-Plate-Style-Speakers/dp/B000P0NJOO/ref=sr_1_2?ie=UTF8&qid=1388871012&sr=8-2&keywords=polk+4x6+plate

See my post 24, above.

JR