Lets talk car/home audio..

[EarmarkMarine]

There were so many speakers, especially in the 70s, that brought a fresh approach to home Hi Fi. Each had a different innovation. But here are a few of the more memorable ones for me.
The Design Acoustics was an omnidirectional speaker with a downfiring woofer, upward midrange plus an array of tweeters.

http://www.hifi-museum.com/pa/da/da_index_p.htm

[url]http://1246.photobucket.com/albums/gg120/retrobhoy/3_3010/100_1126.jpg

Dahlquist was a 5-way mirror image speaker that placed the drivers in an open array to minimize the front baffle effect. This was one of the first attempts to create a transparent speaker and it soon inspired many followers like Vandersteen and more.

http://www.blackswampaudio.com/Inventory/Listing.php?pk_inv=729

The ESS was a true rock monitor. It didn't image very well and it wasn't as precise in its linearity as some other speakers of its era. BUT...nothing sounded better on ELP!!!

http://audio-database.com/ESS/speaker/amt1-e.html

The IMF monitor was the best speaker I have ever heard until you get into the current class of $20k+ speakers (B&W 801, etc.). The KEF flat 9x13 woofer in a folded transmission line delivered the smoothest authoritive bottom end to date.

http://www.imf-electronics.com/Home/...rence-speakers

Honorable mention has to go to the early Infinity speakers, early Celestion, Hegeman omnidirectional with aluminum-drivers and the DCM Time Window.

Hope this introduces you to a few products that you were unaware of. Many of these shaped today's speakers.

David
Earmark Marine