RTR 280 DR behemoths

[downinmexico]

Hello all. I hope I am posting this question in the right place. I recently acquired a set of these monsters along with the ESR-15 electrostatic tweeters. I have searched the web, but cannot find any real information on these. I am wanting to restore these great old speakers and somehow convince my wife to let me use them. Any info anyone could share - spec sheets, brochures, schematics, improvements/modifications, etc. would be greatly appreciated.
Thanks in advance,

Ryan Maness
Hurricane Creek Community
"Back side of nowhere"
near Corinth, Ms

 

[frommerstop]

Nice speakers - well worth the effort to bring them up to spec. There was this discussion about them here a couple months back http://audiokarma.org/forums/index.php?threads/rtr-280dr-rtr-esr-15-whoa.658630/page-2
and if you search, I think you'll find more. You could also search for info about Crown ES speakers, as they were built by RtR for Crown, and used the same ESL tweeters & power supplies.

 

[downinmexico]

Hey frommerstop, thank you for the reply, I did see that post from my searching and I will check on the Crown speakers.

 

[onwardjames]

Very interesting speaker. I know I love multiple driver setups such as this. Good luck. Will watch with interest.

 

[downinmexico]

I will post pics soon.

 

[downinmexico]

Ok, I was able to find some info on the esr-15's thanks to the fast internet and plenty of time at "work". I found the ESR-6 and ESR-15 operating Instructions.

 

[GD70]

Still kicking myself for not grabbing a pair of there at my local SA for 40 bucks, in excellent condition. At the time, I was scared off by their size.

 

[Teradacto58]

Still looking for my pair!

 

[blhagstrom]

Killer speakers!

I scored a set in ND of all places!

They are "large"

 

[hdewees]

The RrR's (pre-BIC) are all great speakers and I think the 280's with the ESL speakers are one of the best you can get.

Enjoy!

 

[downinmexico]

Here's a schematic I found for the ESR-15s