spritzer

I don't have any noise issues with PRP's in the KGSSHV. My issues are all with using 10M90's in the CCS...

raises hand... I spent two weeks drinking nothing but Stroh 80% rum straight up with some tequila while on vacation in Greece. Burns like a mother... for the first sips and did lasting damage to my stomach but it was so worth it. ) Edit: What's up with the normal smile icon these days?

Yeah, that's why the 350V spec scares me a bit. Should be fine though but it is certainly worth a try to lift up the PRP resistors and see if that changes anything...

Monoblock headphone amps are nothing new and we can blame Tyll for that...

...but... but... they aren't red and purdy... My main issue with them is the max working voltage of 350V. Spend a little more and the Vishay CCF60 have a max working voltage of 500V with almost as many values available.

...goes off to place yet another Mouser order this month...

Well it's posted on Ippinkan which are the sole retailer of Airbow so you can draw your own conclusions. The SR-SC1 is a lovely headphone but better than a 007A... ehhh nope...

Highest Vbr to make sure the parts weren't marginal. I never tried it though, it just went on my gigantic to-do list. As Kevin pointed out to me, the much higher inductance of the Xicon's (compared to the PRP and Dale's) might help to kill the oscillation causing this noise issue.

One can always find some other use for those PRP's.

Will you redo the PSU for me to? Bloody thing hums after the whole transformer fiasco.... Looks like I'll be ordering some resistors. Not that I don't have a Mouser shipment already on the way...

I haven't even looked at mine since July but one side on my unit is dead quiet while the other one has noise issues. Could be the resistors but Kevin suggested 3675's which were borderline that could be the cause. Are you using CCF or CMF's? I've started to use CCF's in most of my projects now given how cheap they are and that Krell used to use them...

There is something "off" about the SZ3 units and the measurements just confirm it. I ripped mine apart last week, installed Mk1 drivers and the sound is completely different so Stax did this on purpose by messing with the drivers. Well there isn't a port on the Mk1 so that is a non issue but the devil is indeed in the details with the 007. Getting the arcs bent just right and also getting the earpads angled properly is all crucial to getting most out of them. Also, if the earpads have ever been removed it is vital to install them correctly. Same deal on replacing them once the foam has perished. As it stands now the 007Mk1 does things that the 009 just can't do, and vice versa for that matter, but the 007Mk1 wins out in my book by simply being more natural sounding.

The effect of the port is well documented so that isn't really an issue. I also manipulate the arcs so that the port isn't a big deal even without it being sealed. The end result of Mk1 drivers in a Mk2 frame is just a Mk1 with more pronounced bass. That being the effect of the deeper earpads.

You should introduce some steam into the oven at the start of baking for a much nicer crust. Just throwing a bit of water (1/2 cup would do it) on any of the metal parts of the oven will work. It's also a good idea to insert the bread at a higher temperature than you bake it at to offset the temperature difference of the cold loaf of bread vs. the hot oven. Other than that, good work.

It's a bit shocking that they are still using that awful ESP9 headband...

The bottom ones look like every C3675 I've ever use so they are real.

Fake parts piss me off no end... Here is my first HV board ready for testing. I have some issues that need to be sorted but at least nothing blew up. I have the same problem as Kevin, I never follow the BOM...

I've been testing out some theories with my SR-007's recently and it is quite clear that the odd sound of the SZ3 versions is all due to the drivers. I just swapped some late Mk1 drivers into my Mk2 set and the sound is completely different. Gone is the hard, forward edge of the SZ3 and this one sounds just like my Mk1. I decided to make the comparison fair so the port is plugged but only Mk2 parts were used aside from the drivers. I wouldn't recommend the driver swap since I had to modify the drivers a little bit and there are no spares anywhere if one messes up... The shape of the Mk1 drivers is also just a little bit different so they don't rotate as freely as they should. Small issue for me and some might even welcome it.

That certainly appears to be the case, you certainly don't see the whole picture here.

I don't care about this amp one bit but plenty of people do and some of them happen to be Mafia members. As for the PCB design, you clearly don't see my point. This idiot attacks Ti openly and claims to have a superior design (because nobody has ever designed for low distortion before ) but can't even do the basics right . The end result leaves a lot to be desired and the only reason this gets any attention is due to people out to prove a point they don't even understand.

Not sure but I for one wouldn't believe anything he says. Maybe it is just me though...

I've have heard enough rumors to the contrary to take them seriously but only time will tell I guess.

I've had my fill of trying to show people how to properly do things to be honest. On top of that I don't relish the thought of dealing with somebody as disturbed as this. Then we have the whole issue of why I should help somebody who is clearly going to start selling amps commercially.

I know you were... I can't wait to hear this one though since in theory it should be awesome and as "future proof" as they come.

Exactly, I also never understood why he attacked Ti when there is so much crap out there. Goes to show that this idiot hasn't got a clue what he's doing. A measurement to explain a ground plane that doesn't work? Yeah sure, it's not more likely that the designer is incompetent or anything like that...