Old-School X Series XLR Connectors

Sennheiser 4-Pin XLR Cable for HD 650 / 600 / 6XX / 58X / 660S / 660S2

Sennheiser 4-Pin XLR Balanced Stock Cable & Adapter for HD 600 / 6XX / 58X / 660S2 / 650

Sennheiser 4-Pin XLR Balanced Stock Cable For HD 600 / 6XX / 58X / 650 / 660S2

Sennheiser 4-Pin XLR Balanced Stock Cable & Adapter for HD 600 / 650 / 660S / 660S2 / 6XX