{"type":"firestarter.listing","listing":{"id":"lst_TUr2_RuH","product_name":"Burson Soloist GT4 10W XLR Class-A Headphone/Pre Amp","category":"Headphone DAC/Amp","description":"Note: There is a 2-3 week lead time between ordering and fulfillment for this model.\n\nDual-mono Class-A Amp\nThe Soloist GT4 is a 10W XLR Class-A headphone amplifier and preamp designed for listeners who want silence, control, and current on demand. Its dual-mono architecture, discrete opamps, clean power regulation, and optional GaN Fusion Core supply give you a system anchor that handles demanding headphones and speakers with ease.\nTwin Class-A engines\nThe Soloist GT4 uses two independent, mirror-symmetrical Class-A amplifiers, each with its own power source. This design removes cross-channel interference and preserves spatial clarity. With up to 10W into 16 ohms from the balanced output, headroom is wide and dynamics land with weight.\nDiscrete opamps built for musical detail\nBurson supplies the GT4 with six of its own V-series discrete opamps. These modules work hand-in-hand with the amplifier’s topology to deliver a textured, transparent presentation. They reinforce tonal density and microdynamics without adding haze. A strong match for listeners who value nuance.\nSilent power modules for clean regulation\nNoise begins at the power stage. The GT4 addresses this with Burson’s Silent Power Modules, regulating incoming AC so that the downstream circuitry sees a stable, low-ripple supply. The result is a quieter background and more space around instruments. THD stays low at under 0.0015%, and SNR reaches up to 116dB depending on load.\nVolume control with dual precision\nEach channel gets its own MUSES72320 volume control paired with a discrete buffer. With a dynamic range of -112dB, this architecture minimizes channel deviation and gives you consistent control from low to high levels. Stereo crossfeed and balance adjustments broaden the GT4’s usefulness across headphones and speakers.\nCrossfeed, balance, and sub blending\nThe GT4 supports hardware-based crossfeed for headphone listening and soundstage balancing for speaker listening. It also offers a dedicated subwoofer","images":["https://cdn.shopify.com/s/files/1/0225/2721/3642/files/apos-audio-burson-headphone-dac-amp-burson-soloist-gt4-10w-xlr-class-a-headphone-pre-amp-1211080199.jpg?v=1765629046","https://cdn.shopify.com/s/files/1/0225/2721/3642/files/apos-audio-burson-headphone-dac-amp-burson-soloist-gt4-10w-xlr-class-a-headphone-pre-amp-1211080198.jpg?v=1765629040","https://cdn.shopify.com/s/files/1/0225/2721/3642/files/apos-audio-burson-headphone-dac-amp-burson-soloist-gt4-10w-xlr-class-a-headphone-pre-amp-1211080197.jpg?v=1765629055","https://cdn.shopify.com/s/files/1/0225/2721/3642/files/apos-audio-burson-headphone-dac-amp-burson-soloist-gt4-10w-xlr-class-a-headphone-pre-amp-1211080196.jpg?v=1765629052","https://cdn.shopify.com/s/files/1/0225/2721/3642/files/apos-audio-burson-headphone-dac-amp-burson-soloist-gt4-10w-xlr-class-a-headphone-pre-amp-1211080195.jpg?v=1765629049","https://cdn.shopify.com/s/files/1/0225/2721/3642/files/apos-audio-burson-headphone-dac-amp-burson-soloist-gt4-10w-xlr-class-a-headphone-pre-amp-1211080194.jpg?v=1765628924","https://cdn.shopify.com/s/files/1/0225/2721/3642/files/apos-audio-burson-headphone-dac-amp-burson-soloist-gt4-10w-xlr-class-a-headphone-pre-amp-1211080193.jpg?v=1765628932","https://cdn.shopify.com/s/files/1/0225/2721/3642/files/apos-audio-burson-headphone-dac-amp-burson-soloist-gt4-10w-xlr-class-a-headphone-pre-amp-1211080192.jpg?v=1765628925","https://cdn.shopify.com/s/files/1/0225/2721/3642/files/apos-audio-burson-headphone-dac-amp-burson-soloist-gt4-10w-xlr-class-a-headphone-pre-amp-1211080191.jpg?v=1765628935","https://cdn.shopify.com/s/files/1/0225/2721/3642/files/apos-audio-burson-headphone-dac-amp-burson-soloist-gt4-10w-xlr-class-a-headphone-pre-amp-1211080190.jpg?v=1765628916","https://cdn.shopify.com/s/files/1/0225/2721/3642/files/apos-audio-burson-headphone-dac-amp-burson-soloist-gt4-10w-xlr-class-a-headphone-pre-amp-1211080189.jpg?v=1765628921","https://cdn.shopify.com/s/files/1/0225/2721/3642/files/apos-audio-burson-headphone-dac-amp-burson-soloist-gt4-10w-xlr-class-a-headphone-pre-amp-1211080188.jpg?v=1765628928"],"price":2499,"currency":"USD","in_stock":true,"inventory_qty":29997,"dynamic_pricing":false,"listed_at":"2026-06-20T16:25:56.743Z"},"share_url":"https://firestarter.network/l/lst_TUr2_RuH","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_TUr2_RuH' — this pins the purchase to this exact listing, skipping product search — plus request: 'Buy Burson Soloist GT4 10W XLR Class-A Headphone/Pre Amp' and a budget_max comfortably above $2499.00 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."]}}