Used Universal Audio Apollo Quad 16 FireWire audio interface in good condition, offering premium analog sound with real-time UAD processing. Equipped with four SHARC DSP chips, it delivers high-quality mixing and tracking with near-zero latency. Features include 18×24 FireWire connectivity, top-tier AD/DA conversion, and compatibility with UA’s acclaimed plug-ins. Ideal for professional studios seeking reliable performance and legendary UA tone. Fully functional and ready to enhance your production workflow.