Beyerdynamic DT770 mod help needed

EndersShadow
EndersShadow Posts: 17,704
edited September 2024 in Headphones
Short Summary:

I am modifying a set of Beyerdynamic DT770’s to: (a) use a removable cable stock one broke internally, (b) tweak the sound. I need some help with determining if I wire them internally for a fully balanced setup as well as what wire to go with.

As of now I’ve purchased the unbalanced conversion kit which uses a 3 pin Mini-XLR as I only have one headphone amp that is balanced (iFi zdac from the karma). The plan was to keep all the internal wiring and I purchased a cheap mini-XLR to 3.5mm cable until I can make something better.

Questions:
  1. Should I convert it to be fully balanced internally (i.e. use a 4 pin mini-XLR instead)
  2. What make/model wiring do you recommend? I know @ALL212 used Mogami 2534 but that only works if I go fully balanced. I think Mogami 2552 or 2549 are the equivalents in unbalanced.
  3. Where do you find the fabric jackets that goes over the cables? I’m not looking for techflex but something similar to what you see on these cablesIMG_5640.jpg

Additional information

Here are links to the modifications to the sound I’m going to make: Mass Loading and Damping v2, Mass Loading and Damping v3. I’m starting with the v3 kit since it’s the easiest to do and if I don’t like that sound I will install the v2 dampening to see if I like that better.

Note: the copper weights are identical in
both kits so the difference is the foam v the damping.


all-3.png
"....not everything that can be counted counts, and not everything that counts can be counted." William Bruce Cameron, Informal Sociology: A Casual Introduction to Sociological Thinking (1963)
· Share on FacebookShare on Twitter

Comments

  • EndersShadow
    EndersShadow Posts: 17,704
    edited September 2024
    yn1gr6rehony.jpeg
    vtooz1y0o2rp.jpeg
    xcxddjesahkd.jpeg
    "....not everything that can be counted counts, and not everything that counts can be counted." William Bruce Cameron, Informal Sociology: A Casual Introduction to Sociological Thinking (1963)
    · Share on FacebookShare on Twitter
  • EndersShadow
    EndersShadow Posts: 17,704
    Went ahead and purchased 8 ft of both Mogami 2552 and 2549 plus a Amphenol KS3P 3.5mm Stereo Mini Plug Connector Satin.

    I think I’m gonna with the 4 pin balanced at the headphone and then use a regular stereo cable with the ground connected to both negatives…. I think that’s how it works… lol
    "....not everything that can be counted counts, and not everything that counts can be counted." William Bruce Cameron, Informal Sociology: A Casual Introduction to Sociological Thinking (1963)
    · Share on FacebookShare on Twitter
  • Geoff4rfc
    Geoff4rfc Posts: 2,838
    EndersShadow wrote: »
    Went ahead and purchased 8 ft of both Mogami 2552 and 2549 plus a Amphenol KS3P 3.5mm Stereo Mini Plug Connector Satin.

    I think I’m gonna with the 4 pin balanced at the headphone and then use a regular stereo cable with the ground connected to both negatives…. I think that’s how it works… lol

    Danny.....it's your thing it's your thing, do what you want to do, I can't tell you who to sock it to
    Set up:

    Marantz AV8802A - Sources: BRP Panasonic 9000/CDP Emotiva ERC 3 - Display: LG OLED EVO 83 C3 - Amplification: Emotiva XPA-DR3, XPA-6, XPA-2 x 2 - Speakers: Focal/PolkAudio, Mains/2ch - Kanta No2, C - LSiM706, SS - LSiM702, WS - RTiA9, RS - RTiA9, FH - RTiA3 - Subs: Epik Empires x 2

    Cables: AQ McKenzie XLR's from CDP to AVP to amp for 2ch, Emotiva XLR's for the rest - Douglasconnection: Furutech Alpha 36 12g speaker wire for 2ch, Furez 10g speaker wire for the rest - AQ Forest48 HDMI for the display, AQ Carbon48 HDMI from BRP to AVP - VR3 filtered power cables for CDP, BRP and AVP, Emotiva power cables for the amps - AudioQuest 505 power conditioner.

    EXPERIENCE: next to nothing, but I sure enjoy audio and video MY OPINION OF THIS HOBBY: I may not be a smart man, but I know what quicksand is.
    When I was young, I was Superman but now that old age has gotten the best of me I'm only Batman
    · Share on FacebookShare on Twitter