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Thread: Koss PRO-4 AA vintage headpones

  1. #1
    Join Date: Jan 2008

    Location: Wrexham, North Wales, UK

    Posts: 110,460
    I'm AudioAl'sArbiterForPISHANTO.

    Default Koss PRO-4 AA vintage headpones

    Hi Alex,

    {Discussion moved from the music room}

    No chance - 3,000 odd members of AoS have just added "Ross RE-272" to their favourite ebay searches! (No? oh, ok, well maybe 1 has! )
    Lol, yeah I kinda thought that, so I've just bought these instead (always fancied a pair of 'retro' headphones):





    Info here: http://www.hifiheadphones.co.uk/koss...rodid-564.html


    They're basically these classic 70s headphones, only new (hey, they're not originals, but they'll be guaranteed to work!):









    Should be nice

    Marco.
    Main System

    Turntable: Heavily-modified Technics SL-1210MK5G [Mike New bearing/ETP platter/Paul Hynes SR7 PSU & regulator mods]. Funk Firm APM Achromat with Nagaoka GL-601 Crystal Record Weight. Isonoe feet & boots. Ortofon RS-212D tonearm with Denon DL-103GL, in a Denon PCL-300 headshell, fitted with Funk Firm Houdini and Kondo SL-115 pure-silver cartridge leads.

    Paul Hynes MC head amp/SR5 PSU. Also modded Lentek head amp and Denon AU-310 SUT.

    Other Cartridges: Nippon Columbia (NOS 1987) Denon DL-103. USA-made Shure SC35C with NOS stylus. Goldring G820 with NOS stylus. Shure M55E with NOS stylus.

    CD Player: Audiocom-modified Sony X-777ES/DAS-R1 DAC.

    Tape Deck: Tandberg TCD 310, fully restored and recalibrated as new by RDE, plus upgraded with heads from the TCD-420a. Also with matching TM4 Norway microphones.

    Preamps: Heavily-modified Croft Charisma-X. Power Amps: Tube Distinctions Copper Amp, fitted with Tungsol KT-150s. Quad 306.

    Cables & Sundries: Mark Grant HDX1 interconnects and digital coaxial cable, plus Mark Grant 6mm UP-LCOFC Van Damme speaker cable. MCRU 'Ultimate' mains leads. Lehmann clone headphone amp with vintage Koss PRO-4AAA headphones.

    Tube Distinctions digital noise filter. VPI HW16.5 record cleaning machine.

    Speakers: Tannoy 15MGs in Lockwood cabinets with modified crossovers. 1967 Celestion Ditton 15.

  2. #2
    Alex_UK's Avatar
    Alex_UK is offline Spotify + Facebook Moderator / Chilled-Out Wino and only here for the shilling
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    Ahh man, they rock! Do you know what, I think we should all join Andre in about 1971 and tell the rest of history to f*** right off! Got my eye on a pair of 'phones that I can join the party (7) with - you just need to start growing the 70's porn star moustache - in time for Scalford - dare ya!
    Alex

    Main System: Digital: HP Laptop/M2Tech Hiface/Logitech Media Server/FLAC; Marantz SA7001 KI Signature SACD Player and other digital stuff into Gatorised Beresford Caiman DAC Vinyl: Garrard 401/SME 3009 SII Improved/Sumiko HS/Nagaoka MP-30
    Amplifier: Rega Brio R. Speakers: Spendor SP1. Cables: Various, mainly Mark Grant.
    Please see "about me" for the rest of my cr@p! Gallery


    A.o.S. on Facebook - A.o.S. on Spotify - A.o.S. on Twitter

    There is only one way to avoid criticism: do nothing, say nothing and be nothing Aristotle

  3. #3
    Join Date: Jan 2008

    Location: Wrexham, North Wales, UK

    Posts: 110,460
    I'm AudioAl'sArbiterForPISHANTO.

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    Churz, dude - I think so, too

    Lol - I would do it if I suited a 'tash... I just look (even more) gay than usual with one!

    Beechy's yer top man for gay 'tashes, though, hahaha..... The one he used to have was a belter!!

    In the late 70s I used to have a pair of brown (what other colour would they be, lol?) Koss headphones with individual volume controls, the slider type on each ear, and they sounded fab, so hopefully these will also do the biz.

    I like the description:

    The Koss 4AA full size close back headphones features dynamic elements for wide frequency response. This full-size professional quality stereophone has long been the headphone of choice for broadcast and recording professionals whose careers demand reliable equipment and superior performance.

    As the first dynamic stereophone to deliver true full frequency, high-fidelity performance, the PRO4AA set the standard when it was introduced in its original form in 1970. In the late 1980s after long service, it was retired and replaced by a newer model. Customers clamored for its return, and by 1988 it was brought back by popular demand. Since then, though we've incorporated performance-enhancing technology and updated its style, the essence of the PRO4AA remains unchanged and it continues to set the standard for performance and reliability today.

    The PRO4AA features dynamic elements for an exceptionally wide frequency response from 10-25,000 Hz. Designed for frequent use over extended periods, the PRO4AA's durable steel and rubber headband is generously padded. Adjustable slide bars ensure a snug fit, also critical for hearing every note and keeping unwanted sounds out.

    Whether you are a sound professional or simply love music, the PRO4AA will deliver excellent isolation, accurate sound reproduction, and the excitement of a live performance to your recording.
    Marco.
    Main System

    Turntable: Heavily-modified Technics SL-1210MK5G [Mike New bearing/ETP platter/Paul Hynes SR7 PSU & regulator mods]. Funk Firm APM Achromat with Nagaoka GL-601 Crystal Record Weight. Isonoe feet & boots. Ortofon RS-212D tonearm with Denon DL-103GL, in a Denon PCL-300 headshell, fitted with Funk Firm Houdini and Kondo SL-115 pure-silver cartridge leads.

    Paul Hynes MC head amp/SR5 PSU. Also modded Lentek head amp and Denon AU-310 SUT.

    Other Cartridges: Nippon Columbia (NOS 1987) Denon DL-103. USA-made Shure SC35C with NOS stylus. Goldring G820 with NOS stylus. Shure M55E with NOS stylus.

    CD Player: Audiocom-modified Sony X-777ES/DAS-R1 DAC.

    Tape Deck: Tandberg TCD 310, fully restored and recalibrated as new by RDE, plus upgraded with heads from the TCD-420a. Also with matching TM4 Norway microphones.

    Preamps: Heavily-modified Croft Charisma-X. Power Amps: Tube Distinctions Copper Amp, fitted with Tungsol KT-150s. Quad 306.

    Cables & Sundries: Mark Grant HDX1 interconnects and digital coaxial cable, plus Mark Grant 6mm UP-LCOFC Van Damme speaker cable. MCRU 'Ultimate' mains leads. Lehmann clone headphone amp with vintage Koss PRO-4AAA headphones.

    Tube Distinctions digital noise filter. VPI HW16.5 record cleaning machine.

    Speakers: Tannoy 15MGs in Lockwood cabinets with modified crossovers. 1967 Celestion Ditton 15.

  4. #4
    Join Date: Jan 2009

    Location: Essex

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    I'm openingabottleofwine.

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    Quote Originally Posted by Marco View Post
    Hi Alex,



    Lol, yeah I kinda thought that, so I've just bought these instead (always fancied a pair of 'retro' headphones):





    Info here: http://www.hifiheadphones.co.uk/koss...rodid-564.html


    They're basically these classic 70s headphones, only new (hey, they're not originals, but they'll be guaranteed to work!):









    Should be nice

    Marco.
    Good one Marco,

    I have a pair of Koss Electrostatic headphones (ESP-6) and they're horrid: uncomfortable to wear and have an unbalanced sound. If only I had bought the Pro 4AAs, much, much better (if you like headphones that is )

    Have been on the look out for a pair but always seem to miss the eBay appearances.

    Regards
    Barry

  5. #5
    Join Date: Jan 2008

    Location: Wrexham, North Wales, UK

    Posts: 110,460
    I'm AudioAl'sArbiterForPISHANTO.

    Default

    Hi Barry,

    Good one Marco,

    I have a pair of Koss Electrostatic headphones (ESP-6) and they're horrid: uncomfortable to wear and have an unbalanced sound. If only I had bought the Pro 4AAs, much, much better (if you like headphones that is...
    I thought they'd be up your street

    Apparently the broadcasters at the BBC used them a lot? Yes I do like headphones. This is my third pair! I find them useful for listening to music late at night when Del's asleep.

    Nick Gorham (the chap who modified my Lentek head amp) is building me a bespoke all-valve headphone amplifier, so I thought to go with the valves, I should have a pair of retro headphones

    Technically, they probably won't be as good as my AKG 701s, but they'll add a touch of nostalgia, which is always fun!

    I wonder if Andre will like them?

    Have been on the look out for a pair but always seem to miss the eBay appearances.
    You just mised a pair: http://cgi.ebay.co.uk/Vintage-1971-K...item5adee409dd

    TBH, I'd go for the new ones - they seem identical to the originals, minus the sweaty stains from someone's manky nut!

    Marco.
    Main System

    Turntable: Heavily-modified Technics SL-1210MK5G [Mike New bearing/ETP platter/Paul Hynes SR7 PSU & regulator mods]. Funk Firm APM Achromat with Nagaoka GL-601 Crystal Record Weight. Isonoe feet & boots. Ortofon RS-212D tonearm with Denon DL-103GL, in a Denon PCL-300 headshell, fitted with Funk Firm Houdini and Kondo SL-115 pure-silver cartridge leads.

    Paul Hynes MC head amp/SR5 PSU. Also modded Lentek head amp and Denon AU-310 SUT.

    Other Cartridges: Nippon Columbia (NOS 1987) Denon DL-103. USA-made Shure SC35C with NOS stylus. Goldring G820 with NOS stylus. Shure M55E with NOS stylus.

    CD Player: Audiocom-modified Sony X-777ES/DAS-R1 DAC.

    Tape Deck: Tandberg TCD 310, fully restored and recalibrated as new by RDE, plus upgraded with heads from the TCD-420a. Also with matching TM4 Norway microphones.

    Preamps: Heavily-modified Croft Charisma-X. Power Amps: Tube Distinctions Copper Amp, fitted with Tungsol KT-150s. Quad 306.

    Cables & Sundries: Mark Grant HDX1 interconnects and digital coaxial cable, plus Mark Grant 6mm UP-LCOFC Van Damme speaker cable. MCRU 'Ultimate' mains leads. Lehmann clone headphone amp with vintage Koss PRO-4AAA headphones.

    Tube Distinctions digital noise filter. VPI HW16.5 record cleaning machine.

    Speakers: Tannoy 15MGs in Lockwood cabinets with modified crossovers. 1967 Celestion Ditton 15.

  6. #6
    Join Date: Dec 2008

    Location: Yorks

    Posts: 16,643
    I'm Nobody.

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    Quote Originally Posted by Marco View Post
    Hi Alex,



    Lol, yeah I kinda thought that, so I've just bought these instead (always fancied a pair of 'retro' headphones):



    Info here: http://www.hifiheadphones.co.uk/koss...rodid-564.html


    They're basically these classic 70s headphones, only new (hey, they're not originals, but they'll be guaranteed to work!):







    Should be nice

    Marco.
    Actually i've had those & they are no way near as good imho. The jack plug makes mincemeat out of that one

  7. #7
    Join Date: Jan 2008

    Location: Wrexham, North Wales, UK

    Posts: 110,460
    I'm AudioAl'sArbiterForPISHANTO.

    Default

    Lol - I'll let you know what I think when I get mine

    What do you mean by: "The jack plug makes mincemeat out of that one..."

    Marco.
    Main System

    Turntable: Heavily-modified Technics SL-1210MK5G [Mike New bearing/ETP platter/Paul Hynes SR7 PSU & regulator mods]. Funk Firm APM Achromat with Nagaoka GL-601 Crystal Record Weight. Isonoe feet & boots. Ortofon RS-212D tonearm with Denon DL-103GL, in a Denon PCL-300 headshell, fitted with Funk Firm Houdini and Kondo SL-115 pure-silver cartridge leads.

    Paul Hynes MC head amp/SR5 PSU. Also modded Lentek head amp and Denon AU-310 SUT.

    Other Cartridges: Nippon Columbia (NOS 1987) Denon DL-103. USA-made Shure SC35C with NOS stylus. Goldring G820 with NOS stylus. Shure M55E with NOS stylus.

    CD Player: Audiocom-modified Sony X-777ES/DAS-R1 DAC.

    Tape Deck: Tandberg TCD 310, fully restored and recalibrated as new by RDE, plus upgraded with heads from the TCD-420a. Also with matching TM4 Norway microphones.

    Preamps: Heavily-modified Croft Charisma-X. Power Amps: Tube Distinctions Copper Amp, fitted with Tungsol KT-150s. Quad 306.

    Cables & Sundries: Mark Grant HDX1 interconnects and digital coaxial cable, plus Mark Grant 6mm UP-LCOFC Van Damme speaker cable. MCRU 'Ultimate' mains leads. Lehmann clone headphone amp with vintage Koss PRO-4AAA headphones.

    Tube Distinctions digital noise filter. VPI HW16.5 record cleaning machine.

    Speakers: Tannoy 15MGs in Lockwood cabinets with modified crossovers. 1967 Celestion Ditton 15.

  8. #8
    Join Date: Dec 2008

    Location: Yorks

    Posts: 16,643
    I'm Nobody.

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    Quote Originally Posted by Marco View Post
    Lol - I'll let you know what I think when I get mine

    What do you mean by: "The jack plug makes mincemeat out of that one..."

    Marco.
    Hold on ten mins all will be Revealed, i have to break off from a drunken sesh

  9. #9
    Alex_UK's Avatar
    Alex_UK is offline Spotify + Facebook Moderator / Chilled-Out Wino and only here for the shilling
    Join Date: Aug 2009

    Location: Sunny Suffolk, UK

    Posts: 18,523
    I'm WrappingALilacCurtainAroundMyBobby.

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    Quote Originally Posted by Andre View Post
    Hold on ten mins all will be Revealed, i have to break off from a drunken sesh
    That means he's on a promise, but is too pished to do anything about it
    Alex

    Main System: Digital: HP Laptop/M2Tech Hiface/Logitech Media Server/FLAC; Marantz SA7001 KI Signature SACD Player and other digital stuff into Gatorised Beresford Caiman DAC Vinyl: Garrard 401/SME 3009 SII Improved/Sumiko HS/Nagaoka MP-30
    Amplifier: Rega Brio R. Speakers: Spendor SP1. Cables: Various, mainly Mark Grant.
    Please see "about me" for the rest of my cr@p! Gallery


    A.o.S. on Facebook - A.o.S. on Spotify - A.o.S. on Twitter

    There is only one way to avoid criticism: do nothing, say nothing and be nothing Aristotle

  10. #10
    Join Date: Jan 2008

    Location: Wrexham, North Wales, UK

    Posts: 110,460
    I'm AudioAl'sArbiterForPISHANTO.

    Default

    Nae worries

    Marco.
    Main System

    Turntable: Heavily-modified Technics SL-1210MK5G [Mike New bearing/ETP platter/Paul Hynes SR7 PSU & regulator mods]. Funk Firm APM Achromat with Nagaoka GL-601 Crystal Record Weight. Isonoe feet & boots. Ortofon RS-212D tonearm with Denon DL-103GL, in a Denon PCL-300 headshell, fitted with Funk Firm Houdini and Kondo SL-115 pure-silver cartridge leads.

    Paul Hynes MC head amp/SR5 PSU. Also modded Lentek head amp and Denon AU-310 SUT.

    Other Cartridges: Nippon Columbia (NOS 1987) Denon DL-103. USA-made Shure SC35C with NOS stylus. Goldring G820 with NOS stylus. Shure M55E with NOS stylus.

    CD Player: Audiocom-modified Sony X-777ES/DAS-R1 DAC.

    Tape Deck: Tandberg TCD 310, fully restored and recalibrated as new by RDE, plus upgraded with heads from the TCD-420a. Also with matching TM4 Norway microphones.

    Preamps: Heavily-modified Croft Charisma-X. Power Amps: Tube Distinctions Copper Amp, fitted with Tungsol KT-150s. Quad 306.

    Cables & Sundries: Mark Grant HDX1 interconnects and digital coaxial cable, plus Mark Grant 6mm UP-LCOFC Van Damme speaker cable. MCRU 'Ultimate' mains leads. Lehmann clone headphone amp with vintage Koss PRO-4AAA headphones.

    Tube Distinctions digital noise filter. VPI HW16.5 record cleaning machine.

    Speakers: Tannoy 15MGs in Lockwood cabinets with modified crossovers. 1967 Celestion Ditton 15.

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