{"type":"firestarter.listing","listing":{"id":"lst_Ky71dWqS","product_name":"TOPPING D90 III Discrete 1-bit Fully-balanced Desktop DAC (Apos Certified)","category":"DAC (Digital-to-Analog Converter)","description":"\nReady to hear it all?\n\nThe TOPPING D90 III Discrete DAC is engineered for audiophiles and professionals who demand absolute precision and transparency in their audio. Featuring a fully discrete 1-bit PSRM module, ultra-low jitter, a ten-band parametric EQ, and high-resolution Bluetooth support, this DAC excels in delivering linear, distortion-free sound. It's ideal for those who want to hear every subtle nuance in studio-quality recordings, as well as enthusiasts who stream high-resolution audio and need flexible output options to pair with their systems.\nDiscrete 1-bit PSRM module: precision on every channel\nAt the core of the D90 III Discrete is its 1-bit DAC, a design that processes audio signals one bit at a time. Traditional multi-bit DACs convert audio in larger chunks, which can introduce quantization errors and increase the risk of distortion during conversion. In contrast, the 1-bit approach switches between only two states--on and off--resulting in a much cleaner and more faithful reproduction of the original audio signal. By simplifying the conversion process, the 1-bit design reduces complexity and potential artifacts, making it ideal for high-resolution audio.\nPSRM + 1-bit decoding = absolute clarity\nThe synergy between the PSRM (Phase-Switching Reference Modulator) and the 1-bit DAC design is what sets the D90 III Discrete apart. The 1-bit DAC architecture processes audio signals with extreme precision, converting them one bit at a time. This simplicity reduces quantization errors and minimizes the risk of introducing distortion. However, the effectiveness of this 1-bit approach relies heavily on the accuracy and stability of the voltage reference, which is where the PSRM comes into play.\nThe PSRM module ensures that the 1-bit DAC receives a stable, noise-free voltage reference, allowing the DAC to perform its task without interference. By rapidly switching phases in the signal processing, the PSRM keeps the voltage fluctuations under control, 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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_Ky71dWqS' — this pins the purchase to this exact listing, skipping product search — plus request: 'Buy TOPPING D90 III Discrete 1-bit Fully-balanced Desktop DAC (Apos Certified)' and a budget_max comfortably above $799.00 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."]}}