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bwck2000 last won the day on February 5

bwck2000 had the most liked content!

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About bwck2000

  • Rank
    Advanced Member


  • Location
    Hong Kong
  • Headphones
    009,007,4070,HE60,K1000,Sigma 404&Pro&NB ,Airbow sc-1,lambda sig, lambda nova sig, et1000,sr gamma,srx-mk3 and more
  • Headphone Amps
    Kgsshv Carbon, srm-t1s,sra-14s,dynalo
  • Sources
    Auralic Aries, DQX-500,weiss dac2, airbow dac talent
  • Other Audio Gear
    Esta-4u extra two per channel, CA-Y

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  1. bwck2000

    The Headcase Stax thread

    black-anodized CNC aluminium case, sheep skin with memory foam earpad, copper electrode with 25% more open area than typical stax models, carbon fiber skeleton on the electrode and plastic parts made of industrial grade 3D-printed nylon. The electrode design is similar to the omega driver I posted eariler in this thread. Regarding the diaphragm and the coating, I can't speak too much but the coating is nothing similar to what you can buy in Walmart or Amazon. the diaphragm's active area is 90mm. The sensitivity is similar to 007 but lower than that of 009. Its sound quality is very interesting. its tonality is similar to 007mk1 and less darker but the clone's detail revival ability and soundstage size surpasses 009. The only weakness I noticed is the bass. 007 gets more punchy bass and some people might prefer how the bass is presented on 009 more. IMO stax sacrifice quite a lot of other aspects of sound quality to produce a better bass on its top model.
  2. bwck2000

    The Headcase Stax thread

    I have just made a prototype of my O1 clone. Now I am working on standardizing the procedure of making this headphone as well as its headphone box so that it doesn't look DIY
  3. bwck2000

    The Headcase Stax thread

    Speaking of T1, I noticed that some of the earliest T1s have two transformers replacing the voltage divider in most other later T1s. Will this lead to sonic improvement?
  4. bwck2000

    The Headcase Stax thread

    srm-1/mk2 is good, but t1 is better, in terms of colouring of sound and texture. But since 207 is just an entry model so it doesn't matter much.
  5. bwck2000

    The Headcase Stax thread

    Could the problem be the grounding of the amp?
  6. bwck2000

    ESTA 4u inside

    Wow I haven't seen anyone owning two pairs of them before.Wiring them two speaker per channel makes them comparable with floor standing electrostatic panels. There was an offical accessory called JS-2 , a speaker stand for esta-4u. Although I couldn't find one for sale but I diyed one.
  7. bwck2000

    The Headcase Stax thread

    100% fits
  8. bwck2000

    The Headcase Stax thread

    Few days ago I bought two pairs of stax esta-4u Extra speaker and I am planning to play them two speakers per channel. I heard that Stax ESL speakers are amp-picky. Do anyone have any experience with stax ESL speaker ? I think my firstwatt f6 doesn't have enough power for even one pair of them......
  9. bwck2000

    The Headcase Stax thread

    By hitting the headphone imbalance may go away by a chance of 50% . But the imbalance will 100% come back in the next ten days.
  10. bwck2000

    The Headcase Stax thread

    Its hard to find wires that are thicker than the stock ones. And you may want to keep the stock wires after replacement because you need to put them back before you send the 007 back to Japan for service.
  11. bwck2000

    The Headcase Stax thread

    Replace the tiny wire conneting the driver and the cable with bigger ones and with a more secure solder point.
  12. bwck2000

    The Headcase Stax thread

    It is probably made by photo etching and soldering between the rectangle grid and the perforated electrode. To my surprise , the area of the perforated electrode under the rectangle grid has no holes and the whole surface is flat. The design and the build of the electrode is kind of like what 009 is doing and beyond what a diyer can do🤯 Probably a prototype from stax. I tried to ask the previous owner about the serial no. of her omega but I'm told that the staff from stax teared the label off from her pair ...........
  13. bwck2000

    The Headcase Stax thread

    Have anyone seen an omega driver like this? I got this from someone who sended his omega to Japan for driver replacement. Unfortunately this driver I have developed imbalance ,but Ill do a recoating soon~
  14. bwck2000

    The Headcase Stax thread

    Im sure it is not the joint's fault. When I vary the earcup's pressure by pressing the headphone towards my ear it occassionally gets louder. I have the diaphragm recoated this morning. The coating seems to be too thick, i.e. , the whole driver is fxxked up.😭