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Stax SRM-T2


spritzer
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I thought the King of all headphone amps would deserve his own thread. :) This is a beast of epic proportions, 11 power supplies, an overload of CCS and it draws close to 300W from the wall. :o I'll be updating this post later on with more specs about this monster.

Well, here are some pics for your viewing pleasure. They are huge so may take a while to load.

 

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Edited by spritzer
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what happened to 10 - 19 ? ;)

They are mostly detailed shots of the underside of the PCB. Certainly not the schematic which will not be released.

that is one hell of a power cable connector - 11 supplies would be a handful to try and keep organized. What does the cable look like and does it have internal shielding between the separate supplies?

I haven't gotten the amp yet but given the low level hum Kevin was hearing I'm guessing the high current AC filaments were just grouped in with the other power lines without any shielding.

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what happened to 10 - 19 ? ;)

that is one hell of a power cable connector - 11 supplies would be a handful to try and keep organized. What does the cable look like and does it have internal shielding between the separate supplies?

..dB

more of the same

http://gilmore.chem.northwestern.edu/staxt2-10.jpg

http://gilmore.chem.northwestern.edu/staxt2-11.jpg

http://gilmore.chem.northwestern.edu/staxt2-12.jpg

http://gilmore.chem.northwestern.edu/staxt2-13.jpg

http://gilmore.chem.northwestern.edu/staxt2-14.jpg

http://gilmore.chem.northwestern.edu/staxt2-15.jpg

http://gilmore.chem.northwestern.edu/staxt2-16.jpg

http://gilmore.chem.northwestern.edu/staxt2-17.jpg

http://gilmore.chem.northwestern.edu/staxt2-18.jpg

http://gilmore.chem.northwestern.edu/staxt2-19.jpg

The interconnect cable is just a bunch of regular wire in a bundle about .75 inches

thick, permanently connected at the amp end. For those that don't recognize

old stuff, the power supply connector is the same connector used on

14 inch SMD hard drives from years past.

On the bottom pictures you can see the cable soldered to here, there and everywhere.

Edited by kevin gilmore
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So where are the mandatory two tiny paragraphs about the sound? And do you still have the SR-Omega to try this with?

Oh, and congrats, too.

It just shipped from the US yesterday so I haven't even seen it yet. The SR-Omega is long gone and I just have a Mk1 007 here. I should have had a Mk2 arriving soon but it was damaged prior to shipping so I will get one later on.

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Guest gilency

wow! I wonder how many treasures like this may be in an attic somewhere..... or at a swap meet..... Any idea on how many were ever made? How much did they originally cost?

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Congratulations Birgir !!

I am jealous already...... This is definitely THE amp we all would like to have.

No chanche of building one without the schematics I am afraid....:(

Looking forward to seeing a detailed comparison with the other famous amps.

Enjoy it !

Quad

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wow! I wonder how many treasures like this may be in an attic somewhere..... or at a swap meet..... Any idea on how many were ever made? How much did they originally cost?

There were close to 250 units made but exact numbers are hard to come by. The prices varied quite a bit in those days since Stax changed dealers in the US quite often just before they went bust. A few of these sold for 6500$ with a SR-Omega back in 1995. :o In the more stable markets in Europe it cost 7000€ and with a SR-Omega it sold for 9000€. The Japanese prices are even more stable since there has been next to no inflation there in 15 years, a SR-Omega MSRP was 180kYen and the SRM-T2 was 468KYen. The SR-007 Mk2 is the first price increase of and Omega set since 1993. :P

No chanche of building one without the schematics I am afraid....:(

Stax know that we have the schematic and would like us to keep it under wraps so that's how it will be. They are fine with a couple of DIY amps though.

Edited by spritzer
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I have a pair of Omega1's and i did try it. Very nice.

I do have the BHSE prototype, and compared with that for

(well all night and then some)

Very close call, but the BHSE is ever so slightly better (no humm)

But our version of the T2 is going to be better yet.

(dc filaments) (fully regulated and tracking power supply)

current board...

http://gilmore.chem.northwestern.edu/staxt2rev0stereoproto1.bmp

If you can't generate schematics from that in 15 minutes or less, you don't

deserve to be messing with this.

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