spritzer

The ultimate DIY? A Stax SRM-T2!

4,313 posts in this topic

I'm definitely in for getting boards when it's ready to go. Should be a fun one to case up :)

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Naaman, you are about to have lots of friends. :P

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Naaman, you are about to have lots of friends. :P

If he's smart he won't agree to build one for anyone at a price below $10k (minimum). This is not Head-Fi, he can charge whatever the frack he wants here. :)

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Naaman, you are about to have lots of friends. :P

I wish I had that type of time. I'll be lucky if I can build one for myself before I go back to the box. Now when I am over there, that will probably be a different story.

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Naaman is smart. Still, that may only cut down the number of friends by half.

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Naaman is smart. Still, that may only cut down the number of friends by half.

Piss I though people like me just for being me :(

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I think he meant "change in number", delta, not absolute.

He not that smart, though -- cf that "different story" sentence 3 posts up.

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PM HeadphoneAddict. He can probably knock one together for you after he finishes up his Blue Hawaii.

I can't even build a cmoy...

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Piss I though people like me just for being me :(

That too. Sorry, should have said "new friends", though you'll probably be visited by existing friends too.

I think he meant "change in number", delta, not absolute.

He not that smart, though -- cf that "different story" sentence 3 posts up.

I'm smart enough to count to three. Three posts up from your post is a post by Naaman.

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I only like you for your body, Naaman. Is that "like you for you" enough?

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My milkshake brings all the boys to the yard...

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Anyone that can build a dynahi can build this. If you stuff all the

parts in the right place and can do a really good job of soldering

it should be a snap.

http://gilmore.chem.northwestern.edu/staxt2connexonlyrev0-2.bmp

ground plane removed for picture otherwise it wipes everything away,

components that don't look like they have a lead connected are connected

to ground

http://gilmore.chem.northwestern.edu/staxt2rev0power-6.bmp

i even have a bill of materials. (first time ever)

so i have a clue how much its gonna cost, and how many more parts to buy.

231 semiconductors makes this the most complicated headphone amp ever.

Such a comment is extremely tempting: I know what the parts are and how to read their values and can solder fine. I do this kind of stuff very slowly and carefully and triple-check everything. I guess if I put in a couple of dozen parts every weekend I could have it done in a year. It would neatly spread out the costs too. The only thing is I'd have no idea how to test/trouble-shoot it and I'd probably blow up my apartment.

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The only thing is I'd have no idea how to test/trouble-shoot it

And therein lies the step most overlooked.

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Actually if you set the pots pretty close before you solder them in, and you

don't have any shorts and everything is in the right place, it powers up just

fine the first time.

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Actually if you are Kevin Gilmore and you set the pots pretty close before you solder them in, and you

don't have any shorts and everything is in the right place, it powers up just

fine the first time.

FTFY

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This really isn't the project to show off your arcy-sparky skills. With 100+ transistors plus dozens of diodes it will be pretty hard to troubleshoot it if something were to go wrong. Expensive is also the name of the game here with the resistors alone at roughly 300$ and that's mostly using the cheap PRP's. Upgrade to Riken's and things get very expensive. :)

Btw. If there was ever any doubt, the T2 sounds bloody fucking fabulous. It's more mellow and less intensive then the BH.

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Hrm that's a bit sad for me.. I love intensive ;p But perhaps KG's take will give it some spine. Thoughts Kevin? I guess who knows until one is built. But there is the chance it will sound different as there are some tweaks going in due to various factor right?

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It will be different from the stock amp with higher power output and better PSU.

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Actually if you set the pots pretty close before you solder them in, and you

don't have any shorts and everything is in the right place, it powers up just

fine the first time.

Is a Board Group buy being contemplated?

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Actually if you set the pots pretty close before you solder them in, and you

don't have any shorts and everything is in the right place, it powers up just

fine the first time.

Translation: If you didn't make any mistakes in building it, it powers up just fine the first time.

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Is a Board Group buy being contemplated?

No

Translation: If you didn't make any mistakes in building it, it powers up just fine the first time.

Exactly. Mistakes take the form of various parts reaching airborne status and catching fire rather spectacularly.

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Actually if you set the pots pretty close before you solder them in, and you

don't have any shorts and everything is in the right place, it powers up just

fine the first time.

I love when that happens.

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Having to shake resistor parts out of your hair while trying to shut off the fire alarm make it loose its charm just a bit. :D

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I think he means he loves when that happens...to other people, and he can watch either from a safe distance or behind some sort of safety barrier.

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