This 6.3 mm (1/4")  Extension cable will extend the length of your headphones' cable. It is compatible with all unbalanced single ended TRS cables including headphone connections and stereo line level connections between DAC and Amplifier. Single Channel Balanced signals can also be transmitted through this cable. All cable options include excellent dielectric insulation and shielding to reject EMI and RFI.

This cable is available in OFC, SPOFC, OCC & Pure Silver.
 
OFC Cable Specs
24 AWG Oxygen Free Copper conductors (4x per channel)
High density braided copper shield.
PE dielectric insulation.
PVC Outer Jacket
Outer Cable Diameter:  6.3 mm
 
SPOFC Cable Specs
20 AWG Silver Plated Oxygen Free Copper Conductors (4x per channel)
High density braided copper shield.
PTFE Teflon dielectric insulation
FEP Outer Jacket
Outer Cable Diameter:  5.8 mm
 
OCC Cable Specs
24 AWG Ohno Continuous Cast conductors (4x per channel)
PE Dielectric Insulation
High density braided copper shield.
Aluminum Foil Shield
Double Layer Outer PVC Jacket
Outer Cable Diameter:  8.4 mm
 
SPOCC Cable Specs
24 AWG Silver Plated Ohno Continuous Cast conductors (4x per channel)
PE Dielectric Insulation
High density braided copper shield.
Aluminum Foil Shield
Outer PVC Jacket & Interior PVC Jacket
Outer Cable Diameter:  8.4 mm
 
Pure Silver Cable Specs
27 AWG Pure Silver conductors (4x per channel)
FEP Inner & PE Outer Layer Dielectric Insulation
High density Silver Plated braided copper shield.
Aluminum Foil Shield
Double Layer Outer PVC Jacket
 
6.3 mm (1/4") TRS Connector Specs
Gold Plated Pure Copper Contacts
Carbon fiber and nonmagnetic stainless steel housing
 
6.3 mm Jack Connector Specs
Securely locking cable jack
Nickel Plated Contacts