SF91 5/8pin SF91A Head Lens Optical pickup lens made from ABS material for dependable performance in sound systems. Key benefits Improved machine compatibility and clearer sound for audiophiles and professionals upgrading their equipment. Durable ABS construction that supports longterm use in various sound systems. Quick setup for fast, hassle upgrades to existing audio setups. Seamless replacement of old components to achieve sound and system efficiency. Specifications and compatibility Type: Optical pickup lens (Head Lens) Material: ABS Model: SF91A Head Lens Pin configuration: 5/8 pin Intended use: Replacement in compatible SF91/SF91A head lens applications to enhance sound quality and efficiency 23 practical use scenarios Home audio upgrade: an aging head lens in a fidelity amplifier or discbased player to improve clarity and overall sound performance without extensive downtime. Professional installation and : Use as a readytoinstall replacement part in studio or liveperformance equipment that uses SF91A head lens components, enabling quicker turnarounds. Equipment maintenance and service: Maintain fleet of optical disc players or laser pickup assemblies by swapping in the SF91A 5/8pin head lens for reliable, sustained performance.