Leaderboard

Firstly many thanks to all the contributors to this forum whos posts and direct assistance helped immensely with my amp build, there were a few issues on the way, but the amp is functioning perfectly and is a huge improvement over the STM-727II it replaces. There are many far more seasoned builders than I, but hopefully by mentioning a couple of issues I encountered it may help any future builders. 1) Check and double check your resistor values - I missed one and it resulted in quite a few replacement parts being needed. 2) If you are going to check voltages using your probe on the top of the screw terminals, tighten the screw down first (changed out the original 7815 regulator thinking it was faulty as a result) 3) You need the OP27 opamp installed even if you are using the opto servo to control offset. 4) The posted instructions mention adjusting the left channel balance and offset - you also need to perform the same operation on the right channel 5) I bought an inexpensive set of high voltage 12kv linesmans gloves from Amazon. Probably overkill but for the initial power up of the boards gave me more confidence in working with HV supplies. 6) Mentioned in another thread but Arrow Electronics offer most parts that Mouser have at lower cost and with free overnight shipping 7) If you need circuit boards, Easy EDA is pretty good at circuit layout and integrates with board manufacturer JLCPCB who are really inexpensive (read $2 for 5 small boards) Differences from what I would consider as standard build included: Replaced the 7815 and 7915 with AMB Labs Sigma 78 and Sigma 79 drop in circuits - soldering on the miniscule SM components is a challenge but aside from that they work really well. Used a ladder attenuator from Acoustic Dimensions, made a custom PCB to connect to it (I have 3 spares if anyone needs one). Installed input switching between single end and balanced, with also a feed through setting where the KGSSHV is totally bypassed. The SE input setting also connects the SE ground to the amps -ve balanced input. Picture is the KGSSHV Carbon with it's sibling a TPA Buffalo ESS9035 DAC built last year. Cheers Martin

Considering the number of views, some of you guys have probably seen this.

Eagles

Holy. Crap.

These are all the same thing, but that knowledge won't spare you the horror.

Yes, it happens to me the same. Right now I'm waiting for the album with DAN BERGUND, MAGNUS ÖSTRÖM !!!!! The trio is called Rymden, I guess you know him. It's not my beloved Svensson but it's worth it.

I think it is in parallel. IIRC 1.43M was a value that was suggested...

AOT is "Adjust On Test" and is meant to tweak the negative rail output to match the positive.

Oliver Lieb posted a picture of his knob(s) to FB.

ah Warehouse sound... https://www.sanluisobispo.com/news/local/news-columns-blogs/photos-from-the-vault/article149215714.html

Echo and the Bunnymen - Live in Liverpool

Time for some old fashioned design. You can't go wrong with through hole.

Not being able to build one yourself is a problem. As for one already built, they rarely, if ever, come up for sale. Commercially, the closest thing(s) to it are Headamp Gilmore Lite or Justin's new Headamp GSX Mini Balanced. Note that the Gilmore Lite is single-ended only.

Lol...I never changed my Bias, and I just accidentally left the Mini on the whole evening + last night....this morning it blew my mind. She is still healthy for a moment, I thought she was going to go nuclear meltdown hah!

I just heard the Holo Audio Spring DAC and it's definitely the real deal. I'm just not sure which version it is because the unit doesn't have the Kitsune branding and the owner said that he bought it from HK. Overall performance is in the same ballpark as the Schiit Yggdrasil but is less aggressive and has a sweeter tone. The DAC seems to "enhance" human vocal and I happen to like the colouration but YMMV. The Holo is definitely nice if you have a somewhat bright system and wants to tune it down.