sbelyo

ah, ok that makes sense. As far as the LSK389 you're right, the pakage is the same I just don't know what grade to use. Another question, the people out there with completed board are just using the 2SK170's and the 2SJ74's (matched pairs) ? If that's the case it's the only way to complete a board right now correct?

am I missing something or is the LSJ109 a single in a TO-92 package ? The board has it layed out for a TO-71. Was it available as a matched pair or something? Need some help on this part. Also, I can find the LSK389 in a TO-71 package, but what grade or letter do I use A B or C?

Wow... Thanks for trying that. It's good to know that it doesn't blow up. Alas, I think I'll just build it with a case and PSU that will support headphones for now, but it's nice to know I could power speakers with it

Thanks Pars.... I'd have to take the case off my original Dynahi to see what I used

It was just a thought. I was going to build something else for the speakers, but I thought it was worth an ask. I won't try to drive speaker with it then. So you think I would need a total of 4 sigma22's? One amp board is 2 channels right? Or did I misunderstand? I was thinking one sigma22 per board ie one for Left and one for Right. I'm guessing 30VAC output on the transformer. How many voltamps?

I was able to get a set of bords for the Dynahi rev2 from Tran. Hopefully I'll get them in the next two weeks. Until then I have a few questions before I start to buy parts. Would a pair of Sigma22's work for the power supply instead of the PSU borads that come with the set? Could I drive a pair of 8 ohm monitors with this amp as well as headphones? If so how much power will it provide? What are the reccomended specs for a power transformer if I'm going to drive speakers as well as headphones?

I tried joining the forum but the email never came to my address. I'll have to send a note to Ti. I did take a look on his forums and did see one that I remember. I guess I'll have to start one. Now that I have everything to construct my buffalo DAC and all my cans are wired balanced I have no choice to go balanced with an amp. I missed out on the new Dynahi run and I just don't think I have it in me to do a group buy.

I'v decided to build a balaced M3 and I would like to see how others may have implmemented swithchable gain and different component choices. Thanks

Thanks Guys

I would like to build my new balanced rig properly. Should a source have male or female XLR terminals, and again what should the amp have?

hah... hopefully I can "nail" a set

Yep, I got the files. thanks I've never done a group buy though. I'm working on tracing down a set so we'll see what happens

I have single ended one built from those boards. I want the new set

I tried searching for them. Any idea where they are posted?

will there be another run of the dynahi and psu boards? im in the market for a bablanced set

another +1 on this amp.... It's really good for the money and very easy to put together. The steps are layed out and explained very well. So well in fact that I lett my 11 yo son solder a few joints and this has now peaked his interest in the DIY arts. It sounds really good with my 250 ohm darth beyers. The sound quality was the same as some amp designs that I've thrown hundreds of dollars of caps at let alone the full cost of building them. I cant wait to try the speedball upgrade

I always like to see if anyone has done anything similar to what I am thinking about doing, and the 10ft 1/4" cable is out of stock. I saw no harm in asking just to see if it had been done before. Thanks for the warm response

I wouldn't go so far as to call it shitty. Snake oil maybe. I think 5 ft is long enough because I sit right next to my gear and listen

Not in the diy community I'm not

I think I will

What the heck is so dumb? Show me a 4 pin xlr cardas sennheiser cable for retail sale and I'll buy it! I already have the stock cable and I want to try the Cardas cable, is that a crime? I may buy the cardas sennheiser plugs, but I like the way they terminate that end at the factory Geez, I guess I'll buy the cable and find out for myself. One last thing, I don't screw up!

I will, just wanted to see if anyone has done it

Because they don't sell one with a 4 pin xlr and all my amps are 4 pin xlr. Plus they charge a stupid amount for the balanced versions of the cables with 2 3 pin xlrs

Has anyone ever reterminated a Cardas Sennheiser cable for the HD650? I'm thinking of buying the Fat Pipe version that HF sells in a 10ft length terminated with 1/4" TRS and then cutting that into a 5ft cable and re-terminating it in a 4 pin XLR. I want to know if the cable is laquered inside and if I have to melt the insulation off of it to solder the wires. Then I would make an extension cable and 4 pin XLR to 1/4" TRS SE adaptor with the rest

Thanks Kevin that makes more sense now. I plan to be balanced in and balanced out only when it comes to using a balanced dynahi or M³. For now I'm not worried because I'll just use the single ended output to my original 2 channel dynahi or a tube amp. But since I've never heard balanced and now I will have a balanced source I will build a balanced amp in the next couple of months.