Recent content by Promick
  1. Promick

    Reply to review by 'Promick' on item 'Beyerdynamic DT-831'

    Everything is good, of course. But why do you call these headphones "totally closed"? This is a classic version of the "semi-closed" nuashniks! Of course there is a factory damper, but it is not solid!
  2. Promick

    Sony DR-Z6 (Vintage)

    Sony Z - Series + clone Sony DR-Z5 .. WEGA DSH500
  3. Promick

    Turning 70's stanton dynaphase sixty cans into good sounding 'phones

    Stanton Dynaphase Sixty for Stanton was produced by the Japanese company Elega. And inside these headphones are 100% clone of Elega DR-119CH headphones (Clones: Wharfedale DD1, Dynatron SP3, etc.) http://20cheaddatebase.web.fc2.com/elega/DR-119CH.html If you want these headphones in a closed...
  4. Promick

    Orthodynamic Roundup

    Hi All! Vintage Elega FR-901C Flat Drive Stereo Headphone. Driver full size: 73 mm., only membrane: 57 mm http://20cheaddatebase.web.fc2.com/elega/FR-901C.html ■Price 13,500 yen ■Model Flat dynamic type ■Impedance 60Ω ■Reproduction frequency range 20-20,000Hz ■Allowable input 1,000mW...
  5. Promick

    Orthodynamic Roundup

    Hi All! Vintage Akai ASE-40 Linear Drive Dynamic Headphone. Driver full size: 65 mm., only membrane: 50 mm. http://20cheaddatebase.web.fc2.com/AKAI/ASE-40-J.html ■Price 9,500 yen ■Model Linear drive dynamic type (electrodynamic plane drive type) ■Diaphragm 50 mm 6 micron thick mylar...
  6. Promick

    Philips EM6721 BALANCED Electret, anyone knows them?

    Hi, All! Page 17: http://stereo2go.com/forums/threads/philips-hifi-bochure-1983-84.907/
  7. Promick

    Ampex 140 headphones

    https://worldradiohistory.com/Archive-All-Audio/Stereophile/60s/Stereophile-1966-Autumn.pdf Page 11-12..
  8. Promick

    Orthodynamic Roundup

    I have a lot of vintage headphones, but there are certain difficulties with access to the main part of the collection. When I have a Yamaha HP-1 and some headphones with Peerless 55mm. driver in my hands. , I will definitely compare them!
  9. Promick

    Orthodynamic Roundup

    Wharfedale ID1 is first Isodinamic headphone. First orto is Peerless. But the principle of obtaining sound using this technology was described as early as the beginning of the 20th century.
  10. Promick

    Orthodynamic Roundup

    Hi all! On air heading "Debunk the legends" As we know, the world's first orthodynamic headphones were released by the Dutch company Peerless, after the takeover of the German company MB Quard. And at once 2 models Peerless PMB 6 with a 44 mm driver, and Peerless PMB 8 with a 55 mm driver...
  11. Promick

    Panasonic EAH-500

    Drivers: Left EAH-500, Right EAH-510. As you can see, the film is not transparent, because it is not Mylar, but a special development of the Technics Institute of Acoustics and Psychoacoustics , called "ACOUSTIC PEE".
  12. Promick

    Need help finding a driver for a pair of KOSS PRO 4AAA

    Well, Charles, I'll help you. Series 4 drivers were installed in semi-compact Koss K6/X headphones. They cost pennies on Ebay!
  13. Promick

    New here, vintage prefered!

    Sansui CC-35 Monitor and Sony DR-6M are probably the most underrated vintage headphones in the world! I have a collection of 400 pieces of vintage headphones that I have been collecting for over 25 years and believe me when I say: Sansui CC-35 Monitor and Sony DR-6M - Monitor is one of the best...
  14. Promick

    Koss HV/X replacement pads?

    If you want to disassemble these headphones, then I know how they disassemble. There are 4 flat hex bolts. You need a 4 mm wrench. Peel off the ear pads, tighten 4 screws and take out the driver.
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