Sony MDR-Z7 Upgrades and Mods Thread
Oct 30, 2016 at 8:32 AM Post #184 of 440
2. MATERIALS:
PLUG BODY, TIP ROD & RING - COPPER ALLOY, TIN OR GOLD PLATED
PLUG INSULATION - THERMOPLASTIC, BLACK
RING TERMINAL - COPPER ALLOY, TIN PLATED
CABLE CLAMP - STEEL, TIN PLATED
COUPLING RING - COPPER ALLOY, NICKEL PLATED
HANDLE - COPPER ALLOY, NICKEL PLATED OR BLACK EPOXY
TUBULAR INSULATOR - MYLAR
 
from switchcraft's data sheet http://www.switchcraft.com/Drawings/35HDL_SERIES_CD.PDF
 
copper alloy 
tongue.gif

 
Oct 30, 2016 at 8:36 AM Post #185 of 440
2. MATERIALS:
PLUG BODY, TIP ROD & RING - COPPER ALLOY, TIN OR GOLD PLATED
PLUG INSULATION - THERMOPLASTIC, BLACK
RING TERMINAL - COPPER ALLOY, TIN PLATED
CABLE CLAMP - STEEL, TIN PLATED
COUPLING RING - COPPER ALLOY, NICKEL PLATED
HANDLE - COPPER ALLOY, NICKEL PLATED OR BLACK EPOXY
TUBULAR INSULATOR - MYLAR

from switchcraft's data sheet http://www.switchcraft.com/Drawings/35HDL_SERIES_CD.PDF

copper alloy :p


Copper alloy comes in different forms, Brass is also a copper alloy, but Brass conductivity is very bad....even lower than steel. What I want to know is if this plug use OFC copper cores ? And not brass, or is it Brass
 
Nov 7, 2016 at 12:41 PM Post #194 of 440
  But it got the authentication sticker on his kimber kable box, and i think he buy WM1A with the cable  at the same time..

 
That's a bloody shame if that cable is authentic and constructed like that.  Can't really tell, but it looks to have 2:1 wire ratio with the clear wires within the Y-splitter.
 
Nov 7, 2016 at 1:44 PM Post #195 of 440
Regarding the Switchcraft crew on connectors, indeed, they seem to fit the Z7 perfectly.  However, there is a chance of connections issues as the channel sections on the tip may not line up to the contact points within the Z7 connector housing.  I'll be able to confirm once I make a cable using the connectors.  Here's an image of it with the screw crown fully screwed down.  Not sure what metal (brass/copper) is used, but the meter indicated 2 ohms per channel.
 

 
However, I must say I'm a little disappointment on what I received from Full Compass.  The set I received looks like something shipped directly from China with the typical inconsistent quality as indicated on the inconsistent barrel texture (top is textured, the bottom looks smoothed out or has too many coats of paint) and a few nicks on the barrel surface:
    
 
So, you might want to pay the extra in hopes for a better quality and/or sealed set from another source as mine came loose in a small zip-lock type bag.  However, it looks like there are other options as these type of screw-crown connectors seems to be specifically made for specific wired applications and a similar product from Pearstone/Sennheiser are available with much lower prices from the Switchcrafts:
 
https://www.bhphotovideo.com/c/product/823882-REG/Pearstone_MLC_SE_Locking_1_8_3_5mm_TRS.html
 

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