Fostex RM-780 Near Field Reference Monitors

Bob Martin · Post by **Bob Martin** » 16 Apr 2006 10:28 pm

Hi guys, I have a set of old Fostex RM-780 near field studio monitors 8" woofers I believe. Maybe some of you will remember them they are the ones with the tweeter mounted directly in the middle of the main speaker. Its called concentric speakers with the tweeters in the center of the woofer.

What I am wondering is can those tweeters be replaced because I'm pretty sure one is blown. There doesn't seem to be any highs coming out of it while the other is full and bright.

If they can be replaced I wonder if anyone around Nashville could do it. They are pretty heavey and it would be pretty expensive to ship them some where. If anyone knows anything about these old monsters I'd sure appreciate the info.

I use to use them back in the 80's and early 90's and at the time I thought they were top notch speakers. I mixed many projects thru them and I really liked them. I'd like to hook them up and see what they sound like with all of my digital equipment.

Bob

John Macy · Post by **John Macy** » 17 Apr 2006 5:46 am

Here is their support page. I remember these as sounding pretty nice, too.
http://www.fostex.com/index.php?file=support/support

They can probably steer you to a Nashville dealer or repair center.

Bob Martin · Post by **Bob Martin** » 17 Apr 2006 9:40 pm

Thanks John, I appreciate the link.

Bob

John Macy · Post by **John Macy** » 18 Apr 2006 6:10 am

My pleasure. If they are anything like the Tannoy dual concentrics, you just pull the woofer out from the front, and the tweeter mounts on the rear with a couple of screws--takes about 10 minutes for a Tannoy. So you may be able to order the part and DIY. If the cost of the tweeters is reasonable, I would replace them both...

Bob Martin · Post by **Bob Martin** » 19 Apr 2006 7:42 am

Thanks John, I'll check into that. So maybe no soldering that would be good now I just need to find a tweeter or 3. Fostex does not support them any more but they did give me a name of a place here in town that does their service work and has for over 15 years. So I'll call them. thanks again

Bob

Bob Martin · Post by **Bob Martin** » 20 Apr 2006 2:12 am

Well they tell me they have a tweeter that will fit in my speakers and it's supposedly easy to replace. Maybe a little soldering which I don't mind I do have a very high powered electric arc welder 220 that I can hook up and I'm a much better welder than a solder'er I always thought soldering was for sissy's anyway

I'm going to pick them up and we;ll see how these old speakers sound with todays technology. I did a google on them and I found a set on ebay that looked pretty rough and I think they were selling for less than 200.00. Mine look like new except one corner that got chewed up buy a puppy

I think I paid 600.00 for these back in the 80's and when I bought them lot's of studios here in town were using them. That's why I got them. Before I give them away I'll hook them up to my stereo

Bob

John Macy · Post by **John Macy** » 20 Apr 2006 5:58 am

Bob,

Sounds good--I always thought a good arc welder, a 32 oz ball peen and a sawzall were essential studio repair tools

.

Don't go giving them away till you call me

...

Best of luck.