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DefQon

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Posts posted by DefQon

  1. While I couldn't stand the 507's, the 404 LE is a far cry from bright sounding compared to the X07 Lambda family. Found both the LNS and LS to be lot brighter sounding than the 404 LE, but the LE I had was a bit different (no serial number at all).

  2. I'd say it definitely depends on the capacitor itself. I have read on diyaudio and have used/still have a small inventory of mill spec Europe make Roederstein, Siemens and Rifa capacitors that have a shelf life of 20+ years with manufacture batch codes from 1978 the earliest with no problems but need to be reformed before any voltage is applied to them. Have had them measured for impedance, variance/tolerance, capacitance, esr, vloss and all are within specifications. Cracked some of them open and the electrolyte liquid are still present within and outside the foil.

  3. On 18 februari 2016 at 4:43 AM, DefQon said: Lambda Pro is dark sounding as shit due to a slight recessed treble how do you perceive it as bright?

    The 404 LE is pretty smooth.

    Weird. Definitely find the Lambda Pro to be a bright headphone. Not as bright as the Signature though. Can't stand that crap :lol:

    What about the 202 and 207s?

    202 and 207 are leaner and brighter but have good clarity. You might be finding the LP bright due to an upper mid etch.

    Sent from my LG-D855 using Tapatalk

  4. Well it worked. But getting the same (not as much) static distortion going on in upper registers when I turn volume up and up. This problem started happening after I re-did the psu board. I think I fucked up somewhere and will replace all parts again. 

    EDIT: Well it turns out the interstage board had a shorted 2SK30 O grade jfet and was messing up the signal path when the volume is turn up with buzzing and with I.S engaged, a huge mono like sound.

    Problem persisted after I re-worked the PSU board with replacing all diodes and changing the snubber capacitors for the diodes from 3300pf to 10nf which is the value usually used for capacitors in snubber positions. I hope the MKP10 is fine don't have any ceramic or polyesters on hand. 

    Worked a treat after pulling out the boards one by one and the problem disappeared once the I.S board was removed. Now I can stop pulling my hair out.

     

    Anyway for anybody who ever needs to replace the transformer in the 12S or 10S (ones with EI Core type xfmr) and want to retain the multi primary input voltage selector, the wire voltages are as follows in the diagram I made:

    56c9252438bda_StaxSRA-12SVoltageSelector

    In reference to the picture I've posted few posts above that show my voltage selector from my 12S, the wires are interchangeable for the coloured wires below (if your xfmr is like mine).

    Grey wire is usually grey.

    Blue wire can be brown.

    Black wire can be white.

    Orange wire can be white.

    Red wire can be yellow.

    Brown wire can be red.

     

  5. 9 hours ago, TMoney said:

    Jude says its the best headphone he has ever had in his office.

    Regardless of what everyone thinks of him, the guy has heard enough gear that I'm at least a little intrigued.

     

    How much time do you think he spends with each headphone he listens to when he does a review?

     

    On the other hand Hifiman needs to sell me some of those headphone cables for diy.

  6. Ok so my trafo came, size is just ok as its pretty big for a 65va based off the specs of the above attached pdf. The only problem now is what primary winding wire goes to which pin on the voltage selector?

    The wire colours are different on the 12S compared to the T1 and SRM1 MK2 schematics you've posted.

    20160216_203544_zpsgsvr1iwi.jpg

     

    The plug reads in following orientation downwards:

    240v - 117v

    220v - 100v

  7. It would in a way seem a bit fairer but imo price still not justified if the $9999 price tag is the package deal for both the headphones and the amp but if its just the headphone, Fang has really lost it. 

    I really really do hope Audeze stick with orthos and not attempt at making ESL headphones at one stage to compete with HFM, if so I could see somebody dying in the near future.

  8. One problem affecting these is some startup companies are starting to patent designs, schematics and technologies used over last half century by other companies. The new Enigma hybrid electret headphone is one example, they bought out the patent license for electret technology and trademarked it as there own "Self-bias technology".

    The new Shure ESL IEM is also another which makes it seem they are the first to put an ESL tech into a portable earphone form-factor where Stax beat them 20 years ago. 

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