Pars

Stupid question time, but what is the purpose of the stacked holes for the HV part mounting? Not the best pic, but best I could find.

I’ve been presented with the possibility of acquiring a Pro-ject RPM 5.1. Anyone know anything about these? My current table (which I haven’t used in years) is a Thorens TD-320. Any thoughts appreciated. Sent from my iPhone using Tapatalk

Since my son is studying audio engineering, works in a studio, and has one or more interfaces, I asked him if he had heard of Metric Halo. He hadn't. I'll have to show him these.

Happy Birthday Dan!

Still trying to wrap my head around all of this... so these things are professional audio interfaces, and you guys are using them as your DACs in your home systems?

A nearly 3 month old thread... you have your 1st post and you recommend something that was already recommended back in early December? Not a good start.

Curious... I’m building a Carbon for a European user and don’t have any Stax to test it with. If I can’t find a pair I can borrow, which one of these would you buy: the Monoprice, or the Kaldas Resaech RR1s? Sent from my iPhone using Tapatalk

Happy Birthday Al! Sent from my iPhone using Tapatalk

Hehe... that is the exact reaction when I brought one of the SS Mini's into work with my Fostex's. When I plugged the headphones in and then had to plug a cable from my phone in, my boss said "Oh, no Bluetooth?". Then he listened to it and said it sounded really good. But in a sort of non-understanding way...

Most of the people I work with in a tech company think whatever Bluetooth shit you buy at Best Buy is the end-all be-all of the best sound you can get. They don’t even really comprehend that it could be better, and frankly don’t care. 128k MP3s are just fine with them. Sent from my iPhone using Tapatalk

Bought a used Oppo BDP-103. I'll let you know what I think once I get it.

Happy Birthday Colin! Hope you have a great one! Sent from my iPhone using Tapatalk

Happy Birthday Steve!

Happy Birthday Ed!

Actually, since the speakers aren’t wearing their grills... Sent from my iPhone using Tapatalk

Not sure, they might work. I took a look on diyaudio. Not much discussion or mention of the BF256C. I did find this: alternative transistors, not as costly as the Toshibas SK170 and much easier to source could be the BF256C and the BF246A/247A. The former is a bit higher in noise (still sufficient for highlevel circuits), the latter features much higher Idss which allows for larger source resistor values and for higher bias currents, which could be advantageous in output buffers and buffers that need to drive capacitive loads -which is a very common case with filters. https://www.diyaudio.com/forums/analog-line-level/169005-jfet-active-crossover-3.html#post2227453 EDIT: and from earlier in that thread from the same poster: well regarding soundjudgements aren´t easy, because everybody has a different taste. To me all OP-Amp filters I built sounded artficial to a certain degree. I never doubted to listen to a reproduction of music. The first discrete JFET-filter changed that. Now there was music a lifelike quality which sounded authentic. Music instead of HiFi. I know that distortion-wise the simple Buffer is very good, but dosen´t reach a OP´s low values. But the...who cares about distortion figures, which -as we know for 30 years now- don´t correlate at all with the sonic impression? Noisewise even the BF256C settles around -100dB, the BF246A, 2SK373, 2SK170 beeing even better. So noise should be no big issue. Hum can be an issue in every circuit and typically it depends alot more on the circuits surroundings than on the circuit itself. A different thread, but doesn't sound promising: https://www.diyaudio.com/forums/pass-labs/145201-building-symmetrical-psu-b1-buffer-230.html#post2794067 I'd probably just go ahead and try them, observing pinout, but without the correct part or know equivalent, it might be hard to tell.

Pics or it didn't happen...

Happy Birthday Jeff! And, yes, that does look like Jeff's lake by his house once he gets done with it

RIP Kirk,

RIP Mr. Gilbert. Sounds like an interesting person! Sent from my iPhone using Tapatalk

Thanks for all you do to keep this place running Todd!

To echo what Dusty said, you normally won’t see much if any file compatibility issues with Office files in terms of formatting, etc. Back when I was using VBA code at work a lot in Excel, when using the file at home, in many cases there were workarounds for missing functions (such as Split at the time). Slower, but worked. There are compile or runtime flags (ifmac or something like that) that would only use the VBA workaround on a Mac. As to the Catalina question, I am not even though my 2012 i7 Mini can use it. I just updated it to High Sierra this weekend. I have some 32-bit programs I still use, Mac Office 2011 among them, so am hesitant to go above where I am at currently. I’m also not sure what the current Catalina verdict is as well. Sent from my iPhone using Tapatalk

EDIT: from a 2015 post by Laowei, he recommended a Wima MKS2C034701C00JSSD. Mouser of course has these and anything close on order for February. Looking on Digikey, I see a Kemet R82EC3470DQ70J, which didn't come up on my Mouser search, but they of course do have (and in stock). I'll probably just wait for the Wimas.

Thanks James. I have plenty of GRLV PCBs. I was thinking about looking for a dual GRHV board. Not sure yet. On the BOM I was using (which supposedly was the latest, with the 182R resistors), there were some Nichicon 0.47uf/50V caps (647-QYX1H474KTP) which don't even come close to fitting the board. These are 7.5mm LS and should be 5mm LS. The body on these things is huge, and would require bending resistors to fit them in. Who the fuck did this BOM anyhow? Any recommendation for a suitable cap here?

I’d still go with the Mac... but I’ve used them for years... more like decades Sent from my iPhone using Tapatalk