I decided to ditch the idea of using the Klipsch speakers. They're not typically sold separately and all the ones coming up on eBay have "issues". Also the impedance did reset my expectations - with a clean but admittedly low-powered head unit (22W per channel/50W Peak) and a fairly long wire run, I probably would not be happy with the sound.

So I moved to considering a couple different Infinity speaker solutions. I liked their Reference series 4x6 plate speaker but found that the way I was installing them, they'd be about 1/2" from the back of the seat and really would not disperse enough sound to make it worthwhile.

Finally, while finishing the enclosures that I had intended to use the 4x6's, I also found that I had not paid enough attention to the size. I had planned to use the metal bar that is between the roll bar to secure the speakers. This meant building an enclosure that's triangular with a flat side to mount the speaker and the triangle side to fit in the bracket.



Well the enclosure came out great and fits the bracket but intrudes about an inch over the edge of the bulkhead. Not good for six-footers with the seat all the way back.

I found that if I mount the speakers with the triangular side facing forward and the flat side facing back, it fits very well and looks pretty good (it's nearly invisible from the back).



The bonus is that I have two surfaces facing forward at 45-degree angles, which puts the sufaces facing to either side of each seat.

I measured and found I could fit two speakers in the enclosure, one on each flat of the triangular side. This gives me four 3-inch speakers and four 1.5" tweeters, facing front with good clearance around the seats.






Now I am wondering if I want to put a left and right channel into each cabinet or run lefts on the left side of the car and rights on the right side of the car...? If I put a left and a right on each side, I might get an interesting stereo effect on either side of the passenger or driver's heads. Not really sure though it would probably be easy enough to try both ways. Alternatively I guess I could put in a switch that would let me change it on the fly....

The cabinets are drying - the sanding sealer takes a while to harden. I have the speakers on order and need to get the right sized hole saw. Still contemplating finishes though I suspect I will match the color and texture of the rest of the interior so the speakers will "blend"...

More as it develops...