I gave up 0.5 mm… I tried strengthening the tension until the PCB bends, but still sticking to the stator at 450 - 500 V. I ordered 0.1 mm sheets to make shims and try to make it with 0.6 mm space. Probably I can increase the bias voltage to 600 V with the same tension. I’m listening with 0.8...

0.5 mm. When the bias voltage becomes 380 V or more, the diaphragm sticks to the stator. I am adjusting the tension now. The first impression of listening at the bias voltage of 350 V is, there is more presence than my omega clone.

Hi Chisettawong, I have to re-build the front plates to attach the ear pad and it took time to reorder new material. About the tension, This is my method that after repeating trial and error. Please take my method just for reference…:ghost: 1. Add tension just enough to disappear large...

Hi bui501-tech, thank you for your information. It was over half a year ago, they refused to sell it again… When I called them again, they accepted the order this time. ??? I was planning to cut and use my 5m original STAX extension cable.

Very nice!!! Where you get the flat cables?

Diaphragms 0.8 mm and 0.5 mm. Ear cups. used t= 0.2 mm (0.5 Oz) lambskin.

Hi Chinsettawong, Thank you for sending me the new double-sided stators and spacers for the Orpheus clone. I made extra spacers with 0.8 mm PCB in case the 0.5 mm spacer is unstable with my diagram tension. I need protect very thin moisture/dust cover film on the front, however sound clarity...

Yes, both phones have more bass than my SR407.  Spacer thickness is 0.8 mm.     Tension is very low, only used small clips to add tensions then added heat until wrinkle is gone. This is my method that after I repeated trial and error many times...      I think low frequency is also related...

Wachara, David,   Thanks.   For the third one, I just modified your design to round shape for more like a . I used same PCB, Mylar and tensioning for both phones so sounds are nearly the same.  These phones producing wide sound stage and more bass than my SR-407 and Omega clone!!       I...

Just finished my third one.     

I'm using this.  

Wachara,   Sound from the JF clone is awesome!! I spent a lot of time to find a right tension.       I am making another pair.

Extension cable for the ESP950 is no longer available. They stopped selling... 

Thank you.   I'm still thinking how to attach the 1/8" steel rod to the back panel because I have several ways to attach.  

Updated my clone.   Reduced tensioning for more bass but becomes unstable so I changed thickness of the spacers. It lowered sensitivity but no problem with my KGSS (not HV) and DIY T2. Very stable and bass is deeper than my SR-407.   Diaphragm = 2u Mylar film (e-bay) Dust filter (front...

Diaphragm = 2u Mylar film (e-bay) Dust filter (front only) = 0.9u Super ultrafilm (http://www.indoorspecialties.com/) Frames (cups): 3/4” Red oak board + wood stain + Gross Polyurethane paint (Home depot) Stators: t=0.94mm FR4 PCB (e-bay PCB depot) + “KRYLON Digital Photo & Paper Protectant”...

    Thank you.   No problem so far but only 3 weeks since I build....  I will use Licron for next if Reztone is not lasts longer.    

  Thanks, I only have three SR-X-MK3 and SR-407.  Bass is slightly lower than SR407 but sound is very clear and wide. It is my main rig now.   

Thank you to all.   No, these are EP-007. Replacement ear pad (lambskin) for the SR-007. 8K yen in JPN but $120-160 in US  so I asked my friend in JPN to HC them when she visiting to US.   I used CNC for all parts. I build Shapeoko2 kit for this project. I didn’t know anything about CNC...

  I have been uploaded photos to my web album but I couldn't put a link on the thread without permission.   I think I need put more posts.​ 

  Thanks.   I am using DIY T2 and KGSS. 

  You noticed  HN "inu" (Head Case) = "inuponken" (Head-Fi)  

  Spacer thickness is 0.5mm and bias voltage is 580V.   0.8mm for JF.  

I uploaded photos to my album.    https://picasaweb.google.com/inuponken/ESHP#6178076799726320866