I'm just glad I bought a few pairs before this thread got cooking.

At this point, the RCAs 5691's are my preferred. I've switched to them in both my DIY Aegis and the ZMF Aegis.

There is going to be some resistance due to the wire in the leads. That's unavoidable. 0.6 ohms seems a bit high, but it depends on the gauge of the wire in the leads and how long they are.

If you are reading 0.6 ohms, then that's probably fine. I would hold one lead against the other and see what you measure. It's possible 0.6 ohms is the resistance of the leads themselves. And, not to be a downer, but I would read up a little bit on basic electronics before you actually start...

Do you have a multimeter? You can (and probably should) check continuity yourself, regardless of what Dave says. If you don't have a multimeter, might as well get one now as you'll need it to build the Aegis anyway.

Yeah, Brett Goldstein is great as Roy Kent. I like his film podcast as well.

I have tubes with broken centering pins that work just fine, but I always add guide pin adapters to prevent me from putting them in wrong. If you have a 3D printer (or a friend with one) you can just print one out. That's what I did. I can send you (or anybody else) the file if you'd like.

I liked this post, but ouch.

Ah, so that's where the old adage "never lick the anode cap" comes from.

I'm not sure if it's that exact UGREEN variant, but I've used their USB extensions in the past with my iFi iDSD Sig and they worked just fine.

Can you ask your friend how hard his designs ran the tubes? I've just never heard of sub-mini tubes having that short of a lifespan. Obviously, with tubes, premature failures can occur, but that seems a bit out of the norm. Obviously, your friend's data has value, but it is a singular data...

I know this is a deep pull from earlier in the thread, but I just got here, so..... Anyway, I just measured my pre-production ZMF Aegis and the weight came out at 46 lbs. It doesn't have stock tubes in it, but if anything, the NOS tubes in there I have add a very slight amount of weight. I am...

A friend gave me a 300B power amp a few years back (with EML 300B tubes!) that I use with a speaker adapter for headphones. It works great. I have an old Golden Tube Audio preamp/power amp set that I'm also going to try deploying in a similar manner when I can find a good place to set it up.

I hope to check out the AHB2 as a headphone amp one of these years. I don't have a Sus, but I want to try it anyway.

For selfish reasons, I'm looking forward to it as I want to meet some of you in person. :-)