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bwck2000 last won the day on May 11 2022

bwck2000 had the most liked content!

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  • Location
    Hong Kong
  • Headphones
    es1a and omega
  • Headphone Amps

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  1. Arrived yesterday and it really opens up every electrostatic headphone that I own. I was looking for an amp that can bring more bass out of my HE90 than HEV90 so I drained my pocket to bid on this and now I am very satisfied. The hev90 has a romantic sound but the t2 amplifies every piece of detail, expand the soundstage to what ever possible with extreme fineness and sweetness. Buying any head-fi gear at this price is ridiculous but considering the previous closing bid I think I got a fair deal. And it is so rare to have T2 being sold alone. I do not need another pair of omega so this deal saves me a lot of money. But this amp's functionality in long run is questionable. I hope my handful of obsolete FETs stock will save me some pain when I need to fix this in the future.
  2. Sure we are. Since you are asking about auditioning the es1a I am trying to gather more people for the same es1a tour at the moment and so I am sorry for late reply.
  3. The channel also has a bunch of flagships coverage which are worth looking. The owner is also very willing to answer questions too. Very informative channel
  4. I recall seeing this photo on discord community and I just went looking for where this photo originates and found some description about it. I just quote it here: "bought a record off a guy at a show and we struck up a discussion - turns out he knew the son of stax's CEO and was given this gift decades ago" "a prototype Omega, cups made entirely out of brass" Only after all these years this gem is brought on the internet. Interesting I don't think it is gold plated tho.
  5. I wonder will the position of the bolts allow me to use a pair of the original sr-omega earpads?
  6. After hearing your story I get to know which order it is. The custom border in China has been tight since COVID. They are taxing almost everything they receive so since then we are shipping headphone and product packaging separately exclusively for orders from China to avoid heavy tax. Furthermore, not only they will open each parcel that they receive they will also mess with it. According to your discription, In this case they put the headphone at the bottom of the cart box and took out most of the other shock absorption material. Not sure that they do this on purpose or not. From the photos you gave me the place where the paint falls off is always the same corner of the headband so that might explain it is due to impact during shipping. The discount you asked for a month ago for second unit shipping to USA is still valid and I am certain that the same problem will not happen again including the tilted plate thing because the shock absorption material will be intact throughout the journey. After replacement the warranty is still valid so please give us an email if you have further concerns. Since es1a is an omega clone and aims to recreate omega so it has to be omega-looking.
  7. I am sorry to hear that. We should be held responsible for any defect on our units upon arrival. Seems the primer under the paint is not adhering well onto the body. Please email me your situation and let me send you an replacement.
  8. There is also one winding only on my friend's 007ta. No any other copper wire sticking out. Seems bridging the cut winding for voltage change is not possible on those latest models anymore.
  9. Nice write up, from the amount of measurement graphs I can see how much effort you have put to it. Trimming down regions across the spectrum that you think is too much is a much more direct way to get a sound desired than trying out different gears. The 2K-3K region is particularly sensitive to our ears. To my experience, elevating it increase the glossiness of sound, adding more presence to each instrument and give people a good first impression on audition that it is a headphone with good sound quality. While lowering it make the headphone more relaxing, tolerable to long-term listening but the vocal might sounds void. I have had an earpad with inner face of the earpad cut open so that the foam is exposed to absorb this particular range. But the default one without the hole sounds closer to the original omega.
  10. You can use a multimeter to check the balance and offset of the amp that if they are on zero or anything near it. Another way to work on it is to loosen the 5 silver screw on the driver a bit using a hexagon screw driver.
  11. I have an es1a (omega clone ) loaner unit in US right now. I wonder anyone here would be interested to try them out ? Shoot me a pm if you do.
  12. I have an es1a loaner unit in US right now. I wonder anyone here would be interested to try them out ? Shoot me a pm if you do.
  13. I am using a1968 so its 450v config. Unlike the carbon, it has no adjustable ccs current so I didnt measure it. Maybe I need to order a pair of new heatsinks with longer fins. Its also a fail with no ventilation openings at the bottom but on the top only.
  14. I managed to get my kgsshv project done without creating some big mess and spark, and I want to thank KG for his design , Birgir and many member here for their generous contributions. oyaide L/i50 OFC is used as umbilical cords but is not shown here. later on a L/R balance control will be installed. The power and the amplifying section is about the same size so they can be stacked together. The heat sink size is less than ideal and it runs so hot that I can barely touch. My IR thermometer reads 47 oc but I think it is inaccurate due to the shiny appearance of the heatsink. But then I think at least these heat sinks are bigger than those on-board ones so this should not be a problem. Two stax plug are installed becoz I have dozens of them taken apart from stax extension cords. There are some small issues during startup. The power supply board had some sparking on the bias section becoz some paint is off and probably there are some small filament peeled off from the leg of the 1n4007. It needs some epoxy to cover up the arcing spot. There is also something with the amp board. At first there is no sound, balance sits at 700v and two burnt 50k resistor on each board next to the stn9360. It turns out that I installed some mpsa06 instead. Luckily it fires up after replacement. The first second it plays it blows 717 away. Big soundstage , great dynamic and details. Pretty much no complain and is hard to beat except that vocal can be more engaging. Drives omega, es1a and 007 equally well. I think it somehow sounds sweeter than the carbon I built long thime ago.
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