Leaderboard

progress continues

For those playing along at home, the short wall to the right is in and all the sheathing is on. I got the copper door pan today but won't put that in place permanently quite yet.

An album that was very ahead of its time in 1989 and still sounds great today.

Burnin' Beat Buddy Rich, Gene Krupa 1962 Example:

Looking slick Al

I love that you named your door pan Karl! (zoom in)

Space-Time Jeff Lorber 2021 Example:

Watched The Blue Angels do their fleet week thing from Tiburon.

It's such a treat to work with straight and true lumber again, and normally I don't like anything straight. 😋 I also like that it's going to look like it's always been that way. And if the shop ever goes away, we can just cut a door into the back wall, because there's a bedroom and full bath behind the garage. Put in a kitchenette, and you have another goldmine Fairfax rental. Or put an aging Carpenter up in his old age. 🤪

Milo & Otis took a big step towards enclosing the new shop today. We framed two of the three walls with rough openings for double doors and a 4x4 window. All studs are old growth straight grain Douglas Fir that I salvaged from the house my brother is about to tear down. Straight and sound and fun to work with. Tomorrow we will build the third wall on the floor and then plop it into place with the sheathing and clapboards already on it because there is no room to work between the rock wall and the framing over on that side.

this is a put together chassis of a specific size. where he bought the chassis i do not know, but it completely comes apart, all 4 sides, the round corner pieces etc. Then he had the front,back and top all machined. all panels are .2 inch thick. And the front wood piece is esentially a stick on made of unknown wood. absolutely every single thing about this is fucked to the max. broke the anti-spin pin off the pot and did not even bother to drill a single hole to prevent the pot from spinning. Some of the work was definitely done by an nc mill, and a really shitty one at that. on the mill i used, everything was accurate to .00001 inch, and it really was at least this accurate. this thing is barely accurate to .008 inch. nothing on either inch or metric boundaries. and the holes for the power supply board were drilled by hand, and blind tapped, 2 of the 4 holes went all the way thru the panel. But the worst is the way under-rated power transformers which were potted with definitely the wrong stuff. And wiring all the filaments together. And the stax jack it turns out is also massively fucked. And force held in with rubber o-rings. Gold plated hex screws with the gold coming off. And the tube sockets were really low quality garbage, as bad as the russian crap that mikhail used. The 3 boards from jlcpcb were a total of $65 with shipping. and shipping was half the price. The hand dremel tooled boards were so utterly fucked, no reason for any of this. Somebody really high on really bad drugs did this. Not even mikhail or mike bean (hennyo) could do something so utterly and completely fucked. Wow, i gave hennyo a compliment, yikes. The 300v tube supply is actually pretty clever and kind of unique, but also utterly fucked because he had the pass tube cathode wired to ground when it had to be connected to 300v. And the bias supply with a 100k series resistor. Guaranteed to kill your headphones. Its not my money going into this, so i will continue till its either completely finished and working or the tube diode power supply cannot be made to work. Looks like the repair price will be about $1500 in parts, plus the original purchase price of about $5k. All the improvements to the amp board are in the new board. There are places for solid state diodes on the power supply just in case. There is no reason for any of this. So far i have about 30 hours of labor in this. The mikhail es1 ended up about 50 hours of labor. Yes i'm fucking nuts. all you have to do is take my board files, have them made, stuff with parts, slap into chassis. how fucking hard can it be.

boards actually fit. well shit.

Just make sure all the biscuits are destroyed.

It's been a month but the CRBN is finally here, well this is actually the second set I've received. First set was one of two units to have an assembly issue which Audeze have now identified and fixed. I sent that one back and they sent a new one out. Now these are loaner sets but if I want to keep it, I will buy it. Just wanted to make that clear as I always own everything I tear down. The first set was setup to make it easier for me to take a peek inside so the pics I'll post later, will be of that unit. They are identical though and to say the CRBN looks gorgeous... well that would be an understatement. First thing that came to my mind when lifting out of the sturdy aluminum flight case, was a comparison to the Hifiman Shangri-la jr. Similar price range (I paid 4000$ for my set back in the day) and by comparison the Shangri-la looks like a 200$ Aliexpress special. The carbon fiber headband, the forged carbon earcups and nice thick leather earpads. Yeah, this is for sure no Hifiman product and it really puts Stax to shame with their shitty SR-009 headband design. Not that I was expecting anything less from Audeze but the attention to detail is nothing short of exemplary. Nice long strain relief on the cables as they enter the cups, the quality of the Stax plug, the sheer comfort of having these on the head (even with my melon of cranium) and the list goes on. The only issue I could find with them (and it was true of both sets) is a rather strong chemical smell as they are fresh out of the box. It doesn't bother me at all but it might bother some so best mention it. In terms of amp requirements, they are rather power hungry. It was a clear design choice to make them a bit less sensitive so the amps need to be pushed further in terms of volume level but it's nothing extreme. I had a KGSSHV in my system when the first unit arrived so I kept that to compare against the new one. It drives them just fine but the Carbon is a better choice with roughly 4 times the power. I would place the KGSSHV/KGST as the baseline for them to get excellent performance and it only gets better from there. Now it's been only been an hour or so with this second set (a few days with the first one) so it's early but first impressions are great. To keep it short, it's what the Sennheiser HE90 could have been but never managed to do. The CRBN has that same ethereal, diffused quality but with far more midbass and bass presence. They are not the bass monsters which the 007's can be but there is enough there and they are not bright or forward sounding at all. I'll post some more impressions later and the teardown pics as well.

Hey John, I have the HE-6 but not yet 🙂 the CFA (it is on my build list however). I am ising the HE-6 with RSA The Dark Star atm and it is just magnificent. Compared it to the HD-800 as well but clearly prefer the HE-6 and traded the HD-800.