The best audiophile headphone cable for Sennheiser HD660, HD650, HD600, HD6XX, HD580 - Custom made, available balanced with 4 pin XLR, 4.4mm, etc.
Sennheiser Replacement Headphones Cable for Hd650/Hd600/Hd580/Hd535
Ultra-low capacitance cable with balanced connection for headphones that use Cardas HPSC (HD650) Connectors – Custom Cans Shop
Custom Sennheiser Cable - HD650, HD660S, HD6XX, HD600 & More – Arachne Audio
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Headgear Audio Upgrade Cable for HD600 HD650 HD525 HD545 HD565 HD580 Sleeved
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Custom Sennheiser Cable - HD650, HD660S, HD6XX, HD600 & More – Arachne Audio
[Material] - 2.5mm balanced cable is made of 5N 16-strand OCC and OCC silver-plated (14 cores/strand), with high-quality transmission performance.
2.5mm Balanced Headphone Cable Compatible with Sennheiser HD600 Cable, HD 660S2, HD 660 S, HD 650, HD6XX, HD58X / 5N OCC Silver Plated Braided Cable
4.4mm Balanced Male Cable length is about 1.8m 8 shares, 3.6mm (8 x (1mm x 19 cores)) silver plated cable weaved
Youkamoo 4.4mm Balanced Replacement Upgrade Cable Compatible for Sennheiser HD650, HD600, HD580, HD660S, HD58X, HD6XX Headphones Upgrade Cable