August 8, 200916 yr 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. 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. Edited April 30, 20197 yr by spritzer
August 8, 200916 yr 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
August 8, 200916 yr This was the 'Concorde moment' of Stax, and probably it will always be. Beautiful.
August 8, 200916 yr Author 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.
August 9, 200916 yr 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 August 9, 200916 yr by kevin gilmore
August 9, 200916 yr Author I made a pledge here and now that I will build one sometime before I'm 60. We might just take you up on that...
August 9, 200916 yr 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.
August 9, 200916 yr Wow, wish I could compare the T2 vs BHSE. I want to learn electronics just to understand what you guys are talking about in regards to the complexity of the T2.
August 9, 200916 yr Author 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.
August 9, 200916 yr Ah. Well here's to hoping that it gets there safe and that Icelandic customs don't take a shine to it all of a sudden. Looking forward to the impressions.
August 9, 200916 yr 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?
August 9, 200916 yr Certainly not the schematic which will not be released. spoil sport the diy board looks fantastic - kudos to you both ..dB
August 9, 200916 yr Damn, another pair of pants to go to the laundry.. Very nice Birgir, If it only sounds half as sweet as it looks it'll still be awesome!
August 9, 200916 yr 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
August 9, 200916 yr Author 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. 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. 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 August 9, 200916 yr by spritzer
August 9, 200916 yr 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.
August 9, 200916 yr Author Now you make me want to find yet another SR-Omega. I do need to find a broken set to see what makes them fail...
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