spritzer

Why are you changing those caps? Any of the claims out there that this cap sound like this and this one is good for this spot... it is all bullshit. This is a niche circuit so special care has to be taken when picking caps for that.

I agree, with the Massdrop Koss at 450$ it makes little sense.

Bloody death rays!!!

SR-30 and SR-30 Pro

Stax have clearly been moving towards lessening the impact of the port for years now and they might just have plugged it. Still there is an opening on both sides which might need to be closed. Looks like I'll need to get a new set to test once all this pandemic stuff blows over.

I've had my set for over a month now and I would take them over the SR-009's but then again... never liked the 009's. I've been meaning to write up some impressions for the last couple of weeks so now might just be the time. First of the build quality is outstanding which means they are pretty heavy but yeah... very well made. The only issue I've run into is that there is a tiny bit of play where the forks attach to the cups but after a month of daily use they seem to be no worse for wear so probably not a long term issue either. I would also like some strain relief on the cables as they leave the cups (the 007Mk1 issues spring to mind) and on the plug but these are not easy to do on small scale build. They ideally have to be injection molded and well... that isn't cheap. Still this is me and I'm picky... 😉 The packaging is also superb and small touches like the markings on the cable splitter are appreciated. The fit is very much SR-Omega so a bit loose on the head and they have almost slid off a couple of times, usually when I'm lost in assembling some PCB boards or something like that and forgot they are there. Not really and issue under normal use. Now for the sound, same system as usual, Denafrips Terminator dac feeding a Carbon CC. I've yet to try the other set of earpads so they have the stock set attached... I think. Anyway... the set they shipped with. TL:DR, I like them a lot though I wouldn't call them an SR-Omega clone...they very much their own thing. Balanced sound signature over all but not quite as warm and relaxed as the Omega. There is a small bite to the mid-range that bothers me a bit on some recordings but far away from the SR-009 level of aggression. So not as smooth as I'd like it but that smoothness was also the Omega's downfall in some areas. Bass is not up to the SR-007 levels of depth, control and quality but perfectly fine and superior to any of the 009's. It's linear and extended but not the best there is. Still this is a more relaxed sounding set compared to the 007's so that is to be expected. Sound stage is controlled, yet expansive but can't quite pull off the layering trick the 007's can do so well but again... not really a complaint. Overall I don't think it is fair to compare them to the SR-Omega due to their status and the sad fact that so many Omegas out there sound far from stock. Bad earpads, badly treated drivers etc. all change how the old ones sound like while this one is nice and fresh... also not silly money. So very much recommended and it's always welcome when I have no complaints when testing something new. Small bite to the midrange that bothers me from time to time, not quite as engrossing as the SR-007's but yeah... just a different type of sound and nothing wrong with that. Finally, this set has been running for well over a month now and the amp used is being subject to a lot of power cycles (i.e. I'm using the time at home to do some stress tests) and they have had no complaints. No imbalance issues, charge up instantly and dead silent drivers.

I've posted the schematic for the amp so on there you can see that one side of the input fet has the gate tied to ground via a resistor. Remove that one and copy the other side of the fet (two resistors and a cap) and it is now ready to take a balanced input.

Yes but I've never seen them do that. They usually take it down to 500V or so. That 300V value does smell a lot of somebody measuring the bias at the output socket...

The specs from Koss are clear plus the bias is directly off the B+ so 600V. There is a spot there for a voltage divider with infinite value resistor (i.e. open) from the factory which they can then engage if the squeal becomes an issue.

The Quick is great and Weller is trash now. See the EEVBlog review of one which had no fuse for some reason...

Here are some pics of the amplifier modules: ...and the back: '+ The model1 by comparison: Same shit slightly beefed up.

I want to try one but the amps in these are pure garbage. I found some nice Also funny...this was supposed to be "cheap" tech.

I haven't seen it yet but it is on the list. The rest is indeed apartments and the bakery is just on the ground floor.

Yup, it is there in the on right side of the white buildings in the center.

I just put a new cable on my second set (beause reasons) and I do like them a lot. I also ripped apart one set to examine the drivers and a lot of effort went into these. Bunch of custom molded parts though the stators themselves are PCB.

Yeah, word on the street is that people are not happy with this pile of fail. Color me surprised...

You can get a clean bench which are for instance used to repair hard drives and other sensitive equipment.

I would guess so as well. There is not a whole lot of mass there so it would heat up quickly and no doubt damage the mylar. What a shame...

Soldering to the bias ring... not cool at all.

It is possible but you really have to take them out of the small housing and glue them together. This is due to the internal angle of the Sigma housing and how close the drivers sit to that side. Now doing this is very tricky but can be done.

...so Grado's?

I'd like to know what they were smoking when doing that input trace... clearly needs more vias...

I have one of those and it is ok but the screen is kinda bad and so is the resolution

The undersized 175K resistors aren't a great idea so I'd have 1/2W units there.

Do watch this then... Amazon selling shit that will probably give people cancer.