spritzer

The board is actually much smaller....

Me needs some NC stuff... I also need a shill to post non stop about my stuff on HF. Anybody want to get a free amp or something?

Yeah... I'd go with Audio Valve too. Such honest and upstanding company.

That's their house sound so it's likely. The HE-5 for me is the benchmark of what an excessively forward transducer sounds like.

These boards won't ever be released but we did update the old Headamp design too so that could be shared. No sense in moving away from 20mA for this design. It's those steel bars which hold everything together. They are never the correct size so the amps will become difficult to get right. Having everything terminate in the sinks makes things easier but not always. This is why I'm looking into custom boxes...

That's one of the reasons why I'm hesitant to build more Megatron's. I did design a new PCB for it (hello huge caps plus a bunch of other changes) and get some umbilical cable but it is such a complex amp.

No jumpers on that one.

Yup, it's a modushop chassis. I'm just about done with them and will have to move into custom stuff. Using these is a bit like building on sand... Anyway, here it is with the toroid I was forced to install after the R-cores were DOA. It's all attached to the top panel which does make things tricky. Aside from some slight transformer noise it runs perfectly and doesn't get too hot. Here is is running on the bench:

Do a double blind test and then report back.

There is a drawing of them in his ebay listings.

Hehe. Perhaps scrap the terminal blocks and put the transformers at an angle?

He's referring to the 2SJ109, the dual J74. Not that easy to find.

While on the subject, my mini BHSE is nearing completion. Same size as the Carbon and just a bit bigger than Justin's amplifier unit but this one has the PSU built in. Was supposed to have a R-core transformer but that went apeshit on me so a toroid was installed in a hurry.

That's also Dalbani, aka the people who sold me hundreds of fake 1968's...

I have enough parts stockpiled to make some 500 BHSE's and I imagine Justin has some spares as well.

24V is better so go with that.

Plugged the ports and played with the springs a bit. Other than that they are stock.

M4 is what I generally use for this. Locking washers on the bolts so they will never move.

They are running at 14mA.

Now with it sitting in my main rack for a couple of hours it's time for some impressions. The basic concept of this amp came from me wanting to tame the SR-009 artificial top end and doing it in a cool way. End result is the continued refinement of older circuits but the changes here will no doubt migrate to the older circuits at some point. As better SiC units became available and the new SR-009 showed up it rendered this amp unnecessary but then it became clear that it could melt together the superb technical nature of the KGSSHV and the musicality of the KGST into one package. So we basically have a lot of power, with plenty of detail and a tube like sound from a solid state amp. Now I'm using it with my modified SR-007Mk2 which have pretty much outshone all my other cans. Nothing can touch the bass these dish out or the sheer control over the entire sound spectrum. The Carbon just adds to this as the detail they dig out is simply astounding, placing instruments in their own fixed place in the soundstage which the 009 can't really do as well. Bottom line, I like this amp a lot.

Nope.

+/-400V. I'd rather run with higher current than go to 450V. No boards will be sold until the design is finalized. That could be a while though.

It lives!! First impressions are positive but I need to play with the bias current a bit.

The silkscreen is an approximation at the best of times so this one will work just fine. Meanwhile...

I used 2" sinks as that's what I had. It's what I'd use though when doing it again.