Thoughts on Overlord 12AX7-HD / ECC803S-HD tubes


Hi everyone

I stumbled onto a listing about Overlord 12AX7-HD tubes but didn't find much info on them.

Here are some videos

https://www.youtube.com/watch?v=uxcpQ1pT6zI

audio system using these Overlord tubes playing music.

https://www.youtube.com/channel/UC9LRS8aN7D2qPE0wjFwpnlg

When I looked at some information about them the info was vague.

http://www.ebay.com/itm/Overlord-Nos-Nib-Match-Pair-12ax7-HD-ecc803s-Ultimate-12ax7-Tubes-GOLD-Pins-HIFI-/301695681300?hash=item463e76c314

Has anyone heard about these tubes or used them in their systems? IF so what are your thoughts. From looking at these tubes I think they are a dressed up 12AX7s.

Thanks and I honestly have no affiliation with the seller of these tubes or the company that makes them. I'm just curious about them.
128x128jedinite24
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Who made these tubes and why are they special?
Maybe the fancy things on top?
Says USA made in ad.
Hey everyone.

Thanks for your input and I agree with a lot of your points. Part of me thinks the person who made and selling these tubes is trying to test how gullible people are. Dressed up tube, fancy packaging, some hype and they will make a quick buck.

Other than the dressing on the top and the rings on the bottom of the tubes I can't see what is SO different about these tubes vs. other 12AX7 tubes that would make them so remarkable sounding. If I had the money to burn I'd buy these tubes, look at them closely and see what is up but alas I do not.

Thanks again.
These tubes are awesome.. Worth the money. They sound Killer.
I got a pair the other day. I was able to get them for 349.99. After playing them for a few hours. These tubes stay cool to the touch. This tells me they will last a very long time. I had a buzz noise in my amplifier. Once I put the overlord tubes in the buzz went away. These tubes sound clear and crisp . I was very happy with my purchase. That buzz My amplifier had was driving me nutso I highly recommend these tubes, I also recommend German Telefunken gold pin ecc803s tubes with diamond bottoms. I am very happy with the overlords . Its about time someone made a great tube. That's because it was made in the united states. I think Ozzy had something to do with it? Once these tubes get out there I bet these will go up in price. Just like all other high quality premium tubes. Rock~n~roll