madfusker

Thanks for the confirmation and all the tips! The 1000A looks like a pretty sweet setup as well, but it seems that a 750A will drive 2 pair just fine in my tests.

Understand all that for sure, and I thought it was that basic/common sense as well, but: I picked up some AW650s from a guy for next to nothing however they both needed new horns. Klipsch is out of stock of course 😕, but support told me that people under power those speakers quite often and it will take out the horns. They get quite a few orders for them. I don't know if that's a LOT under powered, or just what? So just trying to match as close as possible.

Looking for some setup advice. I am currently running AW650s on a Parasound HCA750a that shows a spec of: Continuous Power Output - Stereo 75 watts RMS x 2, 20 Hz-20 kHz, 8 ohms, both channels driven 125 watts RMS x 2, 20 Hz-20 kHz, 4 ohms, both channels driven Continuous Power Output - Mono 250 watts RMS, 20 Hz-20 kHz, 8 ohms Current Capacity 20 amps peak per channel Slew Rate > 130 V/μsecond Frequency Response 5 Hz-100 kHz, +0/-3 dB at 1 watt https://www.ebay.com/itm/234610829201 The AW650 shows a POWER HANDLING of 85 watts (340 watts peak) for 8 ohms. So it looks like I am 10 watts under powering the AW650s when I run a single pair on the HCA750a specs above? Is this a problem, or can it damage the horns? I was looking at grabbing a few more 750As and have 1 to 2 pair on each amp, but worried I'm short on power. And if I go 2 pair on that amp, it would drop it to 4 ohms, and looks like that would be 125 watts per channel, correct? So would this be in spec for the AW650 that shows: NOMINAL IMPEDANCE 8 ohms POWER HANDLING 85 watts (340 watts peak) Lastly, given I would need to ebay more HCA750a or better amps, is there cheaper way to power the AW650s that's still clean sounding on the amp for the 85W needed? I am essentially setting them up as zones and they will be fed by a chromecast audio plugged into the RCAs. Thanks.

Probably our best bet. Does anyone know of other models that use the exact same driver? I was thinking we could watch for more than just RF-83s if they used the driver in other speaker sets.

I'm looking for a driver as well. 😕 Anyone have any updates to sourcing one?

I live close by and wish I could help ya out since I've been watching for something like this, but scraping up that much cash is harder than ever right now as most of us know. I will ask around though. What would that driver cost to replace from Klipsch? $150? Any other surface scratches?

Very nice!!! I have an extra UMC-1 I need to market and this looks like the ticket! I had no idea they did that! -MH

I've never heard any thermal compression before. I can crank up my 83's with a lot of power and they never decrease output causing me to turn them up more. If they are heating up I wouldn't know it. Just say'in....

$900 is a steal for these beasts! That's what I paid for mine and they were mint too. I was almost sure they were stolen and took a photo of the license plate as we made the exchange.

Check out my thread here: http://community.klipsch.com/forums/t/153196.aspx?PageIndex=1 Replacements aren't too bad and I would fix them for sure. The smaller magnet speaker seems to be good, just doesn't look like the old one. Unless I missed something, it looks like you blew 2 drivers? They run about $60 shipped and even if you blew all 6 that would be $360 to fix speakers worth over $1000.

W27, I believe the XP5 is a very clean amp and dont suspect it at all. Check out the picture in the first post here: http://community.klipsch.com/forums/t/154509.aspx?PageIndex=1 That picture is my speaker however the crack is only half as long. Same position exactly... It still operated cracked and the only reason I knew it cracked is because I could hear the tin putting off a vibrating tinny sound. When I took my cover off I saw the crack. So I guess it's not "blown", just cracked out. I put the smaller magnet RF83 to the test and it seems to perform just fine. I'm just happy it all works again. I got my RF83's used for $900 mint! so I can't complain too much. Regarding the other thread posted above: I haven't bridged of driven mine to insane levels and I believe it must have just been a weak point in that driver. I have pushed my speakers quite a bit though and probably should just get a second sub. Black Eye'd Peas pump a lot of base and with the speakers set on FULL and the EQ adjusted for slighly more base, it will make the RF83's really thump and sing at even moderate to high volumes. I love em!

Well, I got the new one (number 3) and it's EXACTLY like the previous one... What to do?? I put it in and it drives the same. Seems OK. I kinda feel shafted a little though. If I ever sell these speakers the buyer will be able to easily see that 1 out of 6 is obviously different. Klipsch support doesn't read any of these forums and doesn't really care anyway. I guess I just go with it.

RS-52's are great! I love my XPA-5 too and is certainly a great quality amp. I am only so so happy with my UMC1 though. It sounds great, but really does still have a lot of bugs, esp with HDMI. So I called Klipsch and they told me they can't control what they get from the manufacturer. Eh, yes you can, it's called REJECT bad product. I told him that I paid new price and expected to get a new woofer. Folks, it's seriously that same RB81 in that picture above with a RF83 stamp on it (smaller magnet and all like you see above). What kills me is the magnet has chips out of it all over and there is epoxy spilled all over the magnet too. It looks like it was beat to death in a rock tumbler (though the front is perfect)! The Klipsch tech told me it meets specs and I told him I still wasn't happy it didn't match my other woofers AND was far from new. He grumbled and went ahead and processed an order for another one. I have to give it to them for trying to make it right and not fighting me too much on it. I guess we'll see if I actually get a new one in the mail this time instead of a beat-up refirb though. Fingers crossed.

OK, so they send me a "real" RF83 and I get the thing, open the box, and it's a RF83 refirb driver dated 2006! The thing is beat to heck with epoxy spilled on it and the magnet is all chipped up like it was rolling around in a freight truck for several weeks! Old masking tape residue on it too! Not only that, it also has a smaller magnet! It looks identical to the RB81 with the smaller magnet, only it's stamped RF83. What the heck??? Are they playing games? What to do? It doesn't match what I have!

BTW - I stuck that RB81 in for now and just going to use it until I get the right one. The mangnet on it is much smaller than the RF83 driver but the rest looks the same. I sure hope they don't tell me tomorrow that the RB81 is the new replacement! I don't think that will work having different magnet sizes across the 3 drivers.