spritzer

Funny thing about the Asian forums, the people selling the Rudistor stuff have a huge presence there. When the SR-009 first came out a guy was claiming the Cirolian was an excellent match... that he just happened to sell said amp was naturally not a factor.

The gain of the HV is a bit on the high side but it can be lowered. Ahh Rudi, as braindead as they come. Remember the "independently tested" specs he posted? Turns out he was in good company with Cavalli on that one...

The servo is limited in its range so if the trimpots can't even get close to 0V then then servo will be useless. Matching is important but I did build a Dynalo with no matching at all (except for grade) as a test and I had no problem getting it down to 0V. I didn't even install the trimpots, just used drop in resistors like I did on my last build.

I'd just call them a good counter to the brighter transducers of this world. I always used the HD600's back in the day with some very powerful amps and I had no complaints. Never did care for the HD650 though... One odd thing though, this hybrid I have now sounds much more like the HD600 than the 650 despite having brand spakin' new 650 drivers. The baffle is an old 580 unit so that could account for the change in tone.

Fakes would explain it. At this point I just strip all the active bits and start anew....

A marginal part would also account for this as the amp jumps from normal to fubar. Not probable if both channels act this way though.

A thin sheet of graphene is highly conductive so it wouldn't work as an electrostatic. Plenty of other ways to do it though.

It uses the same circuit as any of the Dynalo amps so yeah. It's more like the GS-1 and older amp Justin made (V2 etc.) though.

Dynalo would be perfect and if you can't find one of Justin's amps then there is always the Sheer Audio version. Kevin had one of those and he approved...

That is true.

They are twice as good...

Could very well be or he still supports the Dynahi/lo projects after he took them over?

We are working on other things but I've built a prototype that I'm quite happy with. I just need to sit down and draw up a PCB and find a suitable transformer.

Yes, that would do nicely.

Pffft, glaciers are overrated anyway... This was done on purpose though to see if the box could dissipate 50W so I would know how hard I can push the KGSSHV in the same chassis. I will change this one though as the PSU caps will not last long at 60+°C. I just don't have any non inductive resistors in these very low values.

I would much rather buy modules from MSB but there is nothing there we can't DIY if we invest enough time/money.

AMB only sells to people using his own boards.

...and it's pretty much done. Runs very hot, front panel at 60°C after an hour. Hardly surprising given 0.8A@12V times four plus the regulators. I need some new resistors...

Where there is will, there is a way.

Pffft on the Sabre, I won't touch anything that isn't ladder based.

Story of the tiny chassis continues: Moved the regulators and swapped out the 3300uf main PSU caps for 33000uf. I also added servo's to the amp boards (modified version of the Dynalo/KG servo) to keep the offset in check. I'm using TL072's now as there were some just sitting on my desk but I'll probably put in some OPA27's. I have some of those on the left. Bought from a local store so European origin probably...

A one off dac would also make it much harder to dismiss the source as something it isn't. We might do a Mafia dac one of these days as we have a very good I/V stage for it...

Well we could use the Darkstar PCB's for something...

The filaments are indeed the big headache. Using AC and a balance pot is possible but I'd rather use something nicer.

What can I say, I like small amps and all the problems they bring... First up is to unfuck this Icepower amp and get this Le Monstre working at reasonable temps..