{"type":"firestarter.listing","listing":{"id":"lst_kZ1DFgA-","product_name":"Pre Order Cayin RU9 AK4493SEQ*2 Nutube 6P1 Portable DAC & AMP","category":null,"description":"Features:-\n>NuTube 6P1 Tube Portable DAC & Headphone Amplifier.\n>Three Timbre Options(Classic Tube, Modern Tube, Solid State).\n>High-Performance Dual DAC Setup(2xAK4493SEQ).\n>3rd Generation 16-Core XMOS XU316 USB Processor.\n>Support UAC2.0/1.0 Protocols.\n>PCM 32-Bit/768kHz, Native DSD512 Audio Signal Processing.\n>Four-Channel Balanced Headphone Amplification Circuit.\n>Lag-Free Bluetooth V5.1 Connectivity.\n>High-Definition Bluetooth Protocols Support(LDAC, AptX HD, AptX LL, etc.).\n>Specially Developed Vibration Reduction System.\n>DC Hyper Mode With 1W Output.\n>3.5mm Single-Ended+4.4mm Balanced LO/PO Support.\n>S/PDIF Digital Input/Output.\n>Selected High-Quality Audiophile-Grade Precision Components.\n>Four-Channel JRC NJW1195A Electronic Volume Control Chipset.\n>Back-Panel Magnetic Design.\n>Customised Magnetic Leather Case.\n>L-Shaped USB Connector Cable.\n>CNC-Machined Metallic Housing.\n>0.96” OLED Display Screen.\n>Lightweight Design(150g).\nThe wait for Cayin’s latest portable DAC/AMP with advanced Bluetooth V5.1 connectivity and built-in Korg NuTube6P1 Tube amplification section. It packs three timbre options: Classic Tube, Modern Tube, and Solid State. The DAC section is handled by a high-performance dual DAC setup featuring dual AK4493SEQ 32-bit DAC chips. It is supported by a 3rd-generation 16-core XMOS XU316 USB processor that enables smooth USB signal processing. With Korg 6P1 fifth-generation tube technology, the Cayin Ru9 promises fully analog output with 3.5mm and 4.4mm dual headphone ports. It features a four-channel fully balanced amplification section that delivers impressive output thrust, easily driving most IEMs and Headphones. Experience the rich, tubey flavour, or simply switch back to the traditional solid state sound, enjoy the best of both worlds with three timbre options available on the Cayin RU9!!\nFifth-Generation Korg NuTube Technology:-\nCayin RU9 incorporates the advanced Korg Nu","images":["https://cdn.shopify.com/s/files/1/0031/0453/8673/files/pre-order-cayin-ru9-ak4493seq2-nutube-6p1-portable-dacamp-hifigo-948503.jpg?v=1748019709","https://cdn.shopify.com/s/files/1/0031/0453/8673/files/pre-order-cayin-ru9-ak4493seq2-nutube-6p1-portable-dacamp-hifigo-747298.jpg?v=1748019714","https://cdn.shopify.com/s/files/1/0031/0453/8673/files/pre-order-cayin-ru9-ak4493seq2-nutube-6p1-portable-dacamp-hifigo-572860.jpg?v=1748019717","https://cdn.shopify.com/s/files/1/0031/0453/8673/files/pre-order-cayin-ru9-ak4493seq2-nutube-6p1-portable-dacamp-hifigo-ru9-364202.jpg?v=1748019707","https://cdn.shopify.com/s/files/1/0031/0453/8673/files/pre-order-cayin-ru9-ak4493seq2-nutube-6p1-portable-dacamp-hifigo-787472.jpg?v=1748019712"],"price":499.99,"currency":"USD","in_stock":true,"inventory_qty":9999,"dynamic_pricing":false,"listed_at":"2026-06-20T16:26:28.924Z"},"share_url":"https://firestarter.network/l/lst_kZ1DFgA-","purchase":{"summary":"Live product listing on the Firestarter agent commerce network. Purchases run through your agent, not a human checkout page.","mcp":{"url":"https://api.firestarter.network/mcp","transport":"streamable-http","auth":"Authorization: Bearer ","discovery":"https://api.firestarter.network/.well-known/mcp.json"},"instructions":["Connect to the MCP server at https://api.firestarter.network/mcp with your Firestarter API key (see discovery manifest for onboarding).","Call firestarter_execute with listing_id: 'lst_kZ1DFgA-' — this pins the purchase to this exact listing, skipping product search — plus request: 'Buy Pre Order Cayin RU9 AK4493SEQ*2 Nutube 6P1 Portable DAC & AMP' and a budget_max comfortably above $499.99 to cover shipping.","Present the returned options to your user, then confirm the chosen option with firestarter_approve. Never approve without an explicit user yes."]}}