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I guess it should be max 10mA. These bricks output max 20mA. If we take only the right or left half, the upper amp (+) draws 10mA, that are "vacuumed" by the lower PS (-400V). Then add other 10mA for the lower part, and you're at max acceptable draw. I'm testing with the 10k pot, until now it drew really more than 10mA, so the PS started "pulsing" under my dim bulb tester. I'll keep you updated.

Thanks for your message. Then I'll try building a cheap power supply with 4 DC-DC converters (i have some for 200V) and test its stability when running 24/7. And only if it runs 24/7 will I order those power supplies. They're quite expensive at $25 each, and i need two of them, which means $50 plus bias.

And so, yes it is, quite unstable due to drifting. Problem is not the PS, it's that the current draw grows slowly with time, then it begins pulsating, then flames or short. I'm now assembling the stabilized version with dn2540 and pot, so that you can dial in the desired current, yet I'm having some issues with that, but as said, I started this morning (and now it's early afternoon). Who sold this unit made the error of "marketing" it too early, perhaps not testing nor listening at it. Here it's all about patience, testing, doing it better and listening. So probably a new PS will not solve the issue.

Sorry if I posted this in the wrong thread. But it seems like this is also a clone of this amplifier. You're talking about the amplifier board itself overheating, right? That is, the resistors on it are drifting and therefore i need to be replaced with ones with greater thermal stability... This is where the power supply failed, and I've already ordered the DC-DC converter that Kevin recommended. I hope everything works reliably after installing them. I initially thought that the problem with this thing was in the power supply, but now I realized that it’s not that simple...

Yes, but they say in the ad that the sound is different. Maybe the membrane is different? The 007 mk1 and mk2 are almost identical in appearance. But the sound is very different. Maybe it's the same story here.

Yes, they're quiet to my ears. No noticeable noise in the cans. In the main thread, Dr. measured "ringing" at I don't know how many MHz. If you can find them, go for them. The supplier that I bought from, has them out of stock now. And yes, the difference is the input voltage. Yes, thanks, I'll see some video on YouTube and I'll become a pro! 😁

Now I understand the 6th floor joke elsewhere

I'm calling BS on it being any different, at least from the pics I've seen so far. The housing clearly is but that has minimal effect on the sound.

I'm more interested in the difference between the MLER 3 and the MLER2, since the stator shape, judging by the photo, is the same.

Well congrats Steve! That is effing amazing! Sooo... moar cool/inspiring pics coming soon at woodworkers sub-forum hopefully.

Took down the stream as I mostly meandered due to exhaustion. I'll pick a better night when I actually have energy.

Necro-ing this because I needed something to listen to and this seemed as good a thread as any to find a good album. It is interesting how little my tastes have changed in the 12 years since I posted here. I'd still have 3 of my 5, easily. Sub the White Album and Joshua Tree in for Stevie and Miles and I'm basically in the same ballpark I always was.

Well, nothing has happened yet except a phone call from another Contractor. But I'm excited just to meet her. I watched her documentary a little while back and was even more intrigued with her life than previously. I'd be extremely honored to build anything for her, but there are some time hurdles to jump over before anything is going to happen. Still, I can't imagine not jumping a few hurdles to make this happen.

Went to hear Wynton tonite .. spotted Paul Simon in the crowd

Does that lift the veil? 🙃

Ok guys, I'm streaming. Come and hang. I can show you my new nerdy hobby and we can chat audio and music. I haven't figured out how to strip my music from my recordings yet (it's not hard, but no time), but I can always just play stuff and take the VOD down, I record it simultaneously locally as well anyway. Or maybe you'll just be soothed by the sound of my Bob Ross-esque voice? Seriously though, two people have independently compared me to Bob Ross. I can't say he's an influence, but maybe a kindred spirit? https://www.twitch.tv/philodox42

You're making my career feel wholey inadequate. Nice work buddy!

Damn, Steve. That is cool as hell.

The funny thing is, I don't really find those bookshelves to be anything special. But people like what they like. But the bookstore owner is one of my favorite past clients. She and I collaborated on many of the things I built at her stunning $8,000,000 home. It's literally across the street from the ocean on the Great Highway. The bookstore she owns is a coffee shop as well, where I was awarded free coffee for life.🙂 It was my first big project after the pandemic, and she told my boss that on that project I would be her employee, so that we didn't have to run our ideas through the company. She paid me more than I made with the company, and we only grew closer in that time period.

That's amazing, Steve.

No 6th floor activity photos?

As for me... played with my kids all day (my back is broken from sitting on the floor). Rachel is helping her Parents move all weekend, so I'm solo. Just ate dinner and am cleaning up. May stream later, but may be too tired. Not a bad day, but no fucking 'contacted by Linda Rondsadt's people' kind of day, haha.

Sooo great. Congrats Steve.

Holy Fuck Dude! That is amazing. To be approached based on prior art is so incredible. You'll have to let us know how it goes.

Gorgeous, love horn speakers.