{"type":"firestarter.listing","listing":{"id":"lst_5W68jr6P","product_name":"xDuoo MH-02 USB DAC & Tube Headphone Amplifier","category":"Headphone Amp (Tube)","description":"Tube charm + transistor oomph = aw yeah \nMeet the xDuoo MH-02. This DAC/Amp merges old-school tube charm with modern digital muscle, giving you the best of both worlds. With the soulful warmth of tube amplification and the crisp, detailed transients of a Class-A transistor buffer, this hybrid amp delivers music the way it’s meant to be heard—warm, rich mids combined with treble that sparkles with detail. \nUSB DAC decoding: high-res heaven\nPlug in the MH-02 and get ready for an earful (in a good way). This little dude decodes high-res audio up to PCM 32-bit/384kHz, DSD256, and MQA 32-bit/384kHz from any device you’ve got lying around. Thanks to the CS43131 DAC chip, you get crystal-clear decoding. \nHybrid moments: tubes meet transistors\nAll hail the hybrid amp. The MH-02’s double 6J1 tubes give you that smooth, warm sound that makes everything feel like a lazy Sunday morning. The transistors, on the other hand, bring the muscle, with a Class-A buffer that delivers both low-end oomph and high-end sparkle. It’s like putting a rocket engine in your grandma’s Buick. \nStrong output power that drives anything\nWith 1300mW of output power, the MH-02 isn’t messing around. High-impedance, low-impedance—doesn’t matter. This thing can drive whatever headphone you’ve got. \nGain switch: dial it in\nGot finicky headphones? No worries. The MH-02 has a gain switch that lets you tweak the output to match your headphones’ impedance. High gain, low gain—just flip the switch and you’re set.\nLine out: ready for anything\nNeed a pre-amp for your gear? The MH-02 has a line out that runs through the tube stage and is controlled by the volume knob. Hook it up to your amps or active speakers and hear your sound quality jump up a notch.\nProtect those ears\nNo one enjoys a loud POP when they turn on their gear. The MH-02’s built-in relay mute circuit ensures you won’t have to deal with that nonsense. It keeps your tubes happy and your ears unscathed. Easy, breezy, and totally hassle-free.\nLooks tha","images":["https://cdn.shopify.com/s/files/1/0225/2721/3642/files/apos-audio-xduoo-headphone-amp-tube-xduoo-mh-02-usb-dac-tube-headphone-amplifier-40706896101612.jpg?v=1741111110","https://cdn.shopify.com/s/files/1/0225/2721/3642/files/apos-audio-xduoo-headphone-amp-tube-xduoo-mh-02-usb-dac-tube-headphone-amplifier-40706896232684.jpg?v=1741111110","https://cdn.shopify.com/s/files/1/0225/2721/3642/files/apos-audio-xduoo-headphone-amp-tube-xduoo-mh-02-usb-dac-tube-headphone-amplifier-40706897576172.jpg?v=1741111110","https://cdn.shopify.com/s/files/1/0225/2721/3642/files/apos-audio-xduoo-headphone-amp-tube-xduoo-mh-02-usb-dac-tube-headphone-amplifier-40706898297068.jpg?v=1741111110","https://cdn.shopify.com/s/files/1/0225/2721/3642/files/apos-audio-xduoo-headphone-amp-tube-xduoo-mh-02-usb-dac-tube-headphone-amplifier-40706897379564.jpg?v=1741111110","https://cdn.shopify.com/s/files/1/0225/2721/3642/files/apos-audio-xduoo-headphone-amp-tube-xduoo-mh-02-usb-dac-tube-headphone-amplifier-40706898723052.jpg?v=1741111111","https://cdn.shopify.com/s/files/1/0225/2721/3642/files/apos-audio-xduoo-headphone-amp-tube-xduoo-mh-02-usb-dac-tube-headphone-amplifier-40706898198764_670bde0e-075c-47a3-9088-0add5b95743c.jpg?v=1741111111","https://cdn.shopify.com/s/files/1/0225/2721/3642/files/apos-audio-xduoo-headphone-amp-tube-xduoo-mh-02-usb-dac-tube-headphone-amplifier-40706961178860.jpg?v=1741111111","https://cdn.shopify.com/s/files/1/0225/2721/3642/files/apos-audio-xduoo-headphone-amp-tube-xduoo-mh-02-usb-dac-tube-headphone-amplifier-40706897510636.jpg?v=1741111111","https://cdn.shopify.com/s/files/1/0225/2721/3642/files/apos-audio-xduoo-headphone-amp-tube-xduoo-mh-02-usb-dac-tube-headphone-amplifier-40706897641708.jpg?v=1741111111","https://cdn.shopify.com/s/files/1/0225/2721/3642/files/apos-audio-xduoo-headphone-amp-tube-xduoo-mh-02-usb-dac-tube-headphone-amplifier-40706898067692.jpg?v=1741111111","https://cdn.shopify.com/s/files/1/0225/2721/3642/files/apos-audio-xduoo-headphone-amp-tube-xduoo-mh-02-usb-dac-tube-headphone-amplifier-40706897608940.jpg?v=1741111111","https://cdn.shopify.com/s/files/1/0225/2721/3642/files/apos-audio-xduoo-headphone-amp-tube-xduoo-mh-02-usb-dac-tube-headphone-amplifier-40706898100460.jpg?v=1741111111","https://cdn.shopify.com/s/files/1/0225/2721/3642/files/apos-audio-xduoo-headphone-amp-tube-xduoo-mh-02-usb-dac-tube-headphone-amplifier-40706898002156.jpg?v=1741111111","https://cdn.shopify.com/s/files/1/0225/2721/3642/files/apos-audio-xduoo-headphone-amp-tube-xduoo-mh-02-usb-dac-tube-headphone-amplifier-40706897805548.jpg?v=1741111112","https://cdn.shopify.com/s/files/1/0225/2721/3642/files/apos-audio-xduoo-headphone-amp-tube-xduoo-mh-02-usb-dac-tube-headphone-amplifier-40706897969388.jpg?v=1741111112","https://cdn.shopify.com/s/files/1/0225/2721/3642/files/apos-audio-xduoo-headphone-amp-tube-xduoo-mh-02-usb-dac-tube-headphone-amplifier-40706896199916.jpg?v=1741111112","https://cdn.shopify.com/s/files/1/0225/2721/3642/files/apos-audio-xduoo-headphone-amp-tube-xduoo-mh-02-usb-dac-tube-headphone-amplifier-40706896298220.jpg?v=1741111112","https://cdn.shopify.com/s/files/1/0225/2721/3642/files/apos-audio-xduoo-headphone-amp-tube-xduoo-mh-02-usb-dac-tube-headphone-amplifier-40706895872236.jpg?v=1741111112"],"price":149,"currency":"USD","in_stock":true,"inventory_qty":9999,"dynamic_pricing":false,"listed_at":"2026-06-20T16:25:58.444Z"},"share_url":"https://firestarter.network/l/lst_5W68jr6P","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_5W68jr6P' — this pins the purchase to this exact listing, skipping product search — plus request: 'Buy xDuoo MH-02 USB DAC & Tube Headphone Amplifier' and a budget_max comfortably above $149.00 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."]}}