{"type":"firestarter.listing","listing":{"id":"lst_jXmQ4F3B","product_name":"SMSL SU-2 Desktop DAC","category":"DAC (Digital-to-Analog Converter)","description":"SMSL SU-2 ES9039Q2M DAC\nThe SMSL SU-2 is a compact, fully-balanced digital-to-analog converter designed for monitoring, desktop audio, and active speaker systems. It offers clean signal delivery, stable connectivity, and measurable performance: AES/EBU input, balanced XLR output, and a low-noise analog stage built around four OPA1612A op-amps. \nFully balanced signal path\nThe SU-2 is designed around a fully-balanced architecture, from digital input through analog output. Balanced XLR outputs reduce noise over longer cable runs and help preserve signal integrity when feeding active monitors or balanced amplifiers. \nAES/EBU connectivity for stable digital input\nAn AES/EBU input provides a professional-grade digital connection with strong noise rejection and clock stability. It's great for monitoring chains and desktop systems where reliability matters. Coaxial and optical inputs are also available for broader source compatibility.\nHigh-performance ES9039Q2M DAC architecture\nThe SU-2 uses the ES9039Q2M DAC chip, chosen for its low distortion and high dynamic range. Measured THD+N reaches as low as 0.00006 percent, with SINAD up to 123.5 dB on balanced output.\nFour OPA1612A op-amps for low-noise amplification\nThe analog stage uses four OPA1612A operational amplifiers arranged in a symmetrical layout. This design prioritizes channel matching and low crosstalk. The result is stable linear amplification across a wide bandwidth, with consistent left-right balance and controlled noise.\nClear visual indicator system\nThe front-panel indicator array shows input selection, signal lock status, channel activity, and sampling rate at a glance. Sampling rate changes are briefly indicated, while left and right channel indicators respond to incoming audio. It is functional feedback, not decoration.\nCompact, desktop-friendly design\nThe SU-2 measures 5.9 inches wide, 1.7 inches tall, and 5.2 inches deep (150 × 42.5 × 133.1 mm). It fits easily on a desk or shelf without crowding other gea","images":["https://cdn.shopify.com/s/files/1/0225/2721/3642/files/apos-audio-smsl-dac-digital-to-analog-converter-smsl-su-2-desktop-dac-1216577579.png?v=1768452070","https://cdn.shopify.com/s/files/1/0225/2721/3642/files/apos-audio-smsl-dac-digital-to-analog-converter-smsl-su-2-desktop-dac-1216577578.png?v=1768452009","https://cdn.shopify.com/s/files/1/0225/2721/3642/files/apos-audio-smsl-dac-digital-to-analog-converter-smsl-su-2-desktop-dac-1216577599.jpg?v=1768451948","https://cdn.shopify.com/s/files/1/0225/2721/3642/files/apos-audio-smsl-dac-digital-to-analog-converter-smsl-su-2-desktop-dac-1216577598.jpg?v=1768451888","https://cdn.shopify.com/s/files/1/0225/2721/3642/files/apos-audio-smsl-dac-digital-to-analog-converter-smsl-su-2-desktop-dac-1216577597.jpg?v=1768451828","https://cdn.shopify.com/s/files/1/0225/2721/3642/files/apos-audio-smsl-dac-digital-to-analog-converter-smsl-su-2-desktop-dac-1216577596.jpg?v=1768451769","https://cdn.shopify.com/s/files/1/0225/2721/3642/files/apos-audio-smsl-dac-digital-to-analog-converter-smsl-su-2-desktop-dac-1216577595.jpg?v=1768451708","https://cdn.shopify.com/s/files/1/0225/2721/3642/files/apos-audio-smsl-dac-digital-to-analog-converter-smsl-su-2-desktop-dac-1216577594.jpg?v=1768451649","https://cdn.shopify.com/s/files/1/0225/2721/3642/files/apos-audio-smsl-dac-digital-to-analog-converter-smsl-su-2-desktop-dac-1216577593.jpg?v=1768451588","https://cdn.shopify.com/s/files/1/0225/2721/3642/files/apos-audio-smsl-dac-digital-to-analog-converter-smsl-su-2-desktop-dac-1216577592.jpg?v=1768451529","https://cdn.shopify.com/s/files/1/0225/2721/3642/files/apos-audio-smsl-dac-digital-to-analog-converter-smsl-su-2-desktop-dac-1216577591.jpg?v=1768451469","https://cdn.shopify.com/s/files/1/0225/2721/3642/files/apos-audio-smsl-dac-digital-to-analog-converter-smsl-su-2-desktop-dac-1216577590.jpg?v=1768451408","https://cdn.shopify.com/s/files/1/0225/2721/3642/files/apos-audio-smsl-dac-digital-to-analog-converter-smsl-su-2-desktop-dac-1216577589.jpg?v=1768451348","https://cdn.shopify.com/s/files/1/0225/2721/3642/files/apos-audio-smsl-dac-digital-to-analog-converter-smsl-su-2-desktop-dac-1216577588.jpg?v=1768451287","https://cdn.shopify.com/s/files/1/0225/2721/3642/files/apos-audio-smsl-dac-digital-to-analog-converter-smsl-su-2-desktop-dac-1216577587.jpg?v=1768451228","https://cdn.shopify.com/s/files/1/0225/2721/3642/files/apos-audio-smsl-dac-digital-to-analog-converter-smsl-su-2-desktop-dac-1216577586.jpg?v=1768451168","https://cdn.shopify.com/s/files/1/0225/2721/3642/files/apos-audio-smsl-dac-digital-to-analog-converter-smsl-su-2-desktop-dac-1216577585.jpg?v=1768451108","https://cdn.shopify.com/s/files/1/0225/2721/3642/files/apos-audio-smsl-dac-digital-to-analog-converter-smsl-su-2-desktop-dac-1216577584.jpg?v=1768451047","https://cdn.shopify.com/s/files/1/0225/2721/3642/files/apos-audio-smsl-dac-digital-to-analog-converter-smsl-su-2-desktop-dac-1216577583.jpg?v=1768450988","https://cdn.shopify.com/s/files/1/0225/2721/3642/files/apos-audio-smsl-dac-digital-to-analog-converter-smsl-su-2-desktop-dac-1216577582.jpg?v=1768450929","https://cdn.shopify.com/s/files/1/0225/2721/3642/files/apos-audio-smsl-dac-digital-to-analog-converter-smsl-su-2-desktop-dac-1216577581.jpg?v=1768450868","https://cdn.shopify.com/s/files/1/0225/2721/3642/files/apos-audio-smsl-dac-digital-to-analog-converter-smsl-su-2-desktop-dac-1216577580.jpg?v=1768450809","https://cdn.shopify.com/s/files/1/0225/2721/3642/files/apos-audio-smsl-dac-digital-to-analog-converter-smsl-su-2-desktop-dac-1216577600.png?v=1768450748"],"price":99.99,"currency":"USD","in_stock":true,"inventory_qty":9999,"dynamic_pricing":false,"listed_at":"2026-06-20T16:25:56.159Z"},"share_url":"https://firestarter.network/l/lst_jXmQ4F3B","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 <your Firestarter API key>","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_jXmQ4F3B' — this pins the purchase to this exact listing, skipping product search — plus request: 'Buy SMSL SU-2 Desktop DAC' and a budget_max comfortably above $99.99 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."]}}