Have no clue. Cant recall. May have been someone experimenting with something other than Klipsch. Just do not remember. Thanks for letting me know. I will not try and modify them. Also I bought Crites x overs and a set of the Klipsch "127123 - K-792/103-TI DIAPH. KIT" to go in them. I have the x overs installed and it seems to me that the speakers sound far better than before. Now to install the diaphragms when they arrive. I like the sound of these speakers. 

I have replaced the diaphragms of the K55V with absolutely original diaphragms from Atlas Sound. I've forgotten where they came from, I remember Malaysia but I'm not sure. I had them from Crites for my LaScala. I'm still looking for a European dealer for the Khorn. It doesn't necessarily need to be replaced but it's a bit better in the lower frequencies because the material can get hardened lver the decades. Some discussion here in older threads pro and con replacement, so not really an urgent must.   Please, other members are welcome to say something about the K77. I bought new diaphragms from the Netherlands. I had sent them along when the K77 magnets were energized in Mannheim. After they had installed one of this new diaphragms there, measured and listened to it, they were very, very disappointed. The old first original diaphragms have a much better sound. In Mannheim at the “Lautsprecher Manufaktur” they immediately put the old diaphragms back into the K77. Supposedly these small diaphragms do not age noticeably and sound like they did on the first day. So never replace them if they work. The ones available today are cheap Chinese scrap. If anyone in the forum has a source for good new diaphragms for K77 please let me know. Just in case a voice coil burns out at some point.

I am also willing to offer my quad of vintage USA Tung-Sol 6550 tubes to the new owner of the VRD Stereo amp for another $350. Not willing to sell them separately. These have approx 1000-1300 hours on them but have always been my favorite output tubes in this amp.     

Fancy 🤩   I have been a bit more modest on my wallet (at least I think so), Citizen EcoDrive Diver.

Diet and weight loss is a game changer with people prone to gain weight. Have an example in my family. Everything written above applies. But obviously not applicable with generally skinny people with diabetes. Diet is primary in that population. Exercises help a lot, but under medical supervision.  

My KT88 push-pull with 100 watts has excellent bass. Hypex NC400 monoblocks (class D) give me more defined bass. Kenwood M1 with 105 watts in class AB gives better of both worlds; good definition, tight and articulated bass. But not that much better than class D.

Both amps are solid, but I'd lean towards the Luxman L-590AXII. Its warm, musical tone pairs beautifully with Klipsch speakers, and the Class A power adds great depth, especially at lower volumes. If the McIntosh isn’t a huge upgrade for the extra 20%, the Luxman feels like the smarter choice.

Hello friends , i come to ask you your opinion about the new amp that i am planning to buy. I bought a new Heresey IV pair and im looking for a amp for it , one that would also work fine in my Forte IVs. After some research(Google/forums/Youtube) of mostly of what i could find here where i live (Europe) , i kinda settled between a Luxman L590 AXii  or a Mcintosh MA8000/9000. I dont have a chance to hear them paired to the speakers for any of the two mentioned amps since it is not doable. I did read good things about the Luxman and Klipsch speakers. The Mcintosh would also be like 20% more expensiever than the Luxman. What would your opinion be ?   Thank you

Just came in the mail    Airbag  The Century Of Self   

I built this about 5 years ago, and spared no expense. It's upgraded with Goldpoint dual mono attenuators and a Goldppoint selector switch, Goldpoint knobs, upgraded RCA jacks, silver wire with teflon sleeves and Superior Zcap capacitors, which were the recommended caps in Troels Gravesen's workup of the GG preamp (see link). It also has a custom made faceplate from Front Panel Express, and a really nice blue LED pushbutton power switch. The preamp works perfectly and sounds terrific. It's currently set up for 12dB gain, but this is easily changed to 18 or 24dB with the swap of 4 resistors.. I have paired this with an NOS Valves VRD, Quciksilver Horn Mono amps, Welborne Star Chief 45 monoblocks, Alan Eaton 45 monoblocks, a First Watt J2, Odyssey Khartago SS amps and I'm sure a couple other amps I can't recall. It pairs easily with a wide variety of power amps. It is in great shape, functions perfectly and sounds terrific. The only cosmetic defect is one corner of the case, but it is totally behind the faceplate and not at all visible. And it obviously doesn’t affect the performance in any way (and it looks a lot worse in the photo than in real life but I wanted to be transparent).  I will include any spare 12au7 tubes I have in my stash, as I don’t have any other equipment that uses that tube. It will, of course, ship with a full complement of tubes, and a generic power cord. Asking $700 shipped.  Or, I would entertain a trade or partial trade for a quality CDP or transport, or a standalone R2R ladder DAC that would be an appreciable improvement over the DAC in my Cambridge CXN v2 streamer. I’ll cover shipping in the CONUS. Contact me with any questions.