{"product_id":"topping-a90-discrete","title":"TOPPING A90 Discrete Amp: Flagship NFCA, 10W Output, Reference-Grade Preamp","description":"\u003ch1\u003e\u003cb\u003eTOPPING A90 Discrete: The Flagship Reference-Grade Discrete Headphone Amplifier\u003c\/b\u003e\u003c\/h1\u003e\n\u003cp\u003eThe TOPPING A90 Discrete is a monumental achievement in audio engineering, designed for audiophiles who demand the ultimate in power, precision, and fidelity. By implementing a \u003cb\u003efully discrete NFCA architecture\u003c\/b\u003e, the A90 Discrete achieves technical specifications that challenge the limits of modern audio measurement, providing a truly transparent and reference-grade listening experience.\u003c\/p\u003e\n\u003ch2\u003e\u003cb\u003eFully Discrete NFCA: Uncompromised Purity and Power\u003c\/b\u003e\u003c\/h2\u003e\n\u003cp\u003eThe 'Discrete' designation is the key to the A90's flagship performance, utilizing individual components for maximum customization and optimization.\u003c\/p\u003e\n\u003ch3\u003eAll-Discrete NFCA Modules\u003c\/h3\u003e\n\u003cp\u003eThe A90 Discrete features \u003cb\u003efully discrete NFCA (Nested Feedback Composite Amplifier)\u003c\/b\u003e modules. This sophisticated architecture uses individual transistors and components, allowing TOPPING to precisely tune the circuit for the lowest noise and distortion. It achieves an astonishingly low Total Harmonic Distortion plus Noise (THD+N) of less than \u003cb\u003e0.00006%\u003c\/b\u003e.\u003c\/p\u003e\n\u003ch3\u003eMassive 10W Output Power\u003c\/h3\u003e\n\u003cp\u003eThis amplifier is a powerhouse, capable of delivering over \u003cb\u003e10 Watts (10000mW) of output power per channel\u003c\/b\u003e into a 32Ω load. This immense driving capability ensures perfect control and dynamic response, effortlessly managing even the most power-hungry planar magnetic and high-impedance headphones.\u003c\/p\u003e\n\u003ch2\u003e\u003cb\u003eUltimate Versatility and Connectivity\u003c\/b\u003e\u003c\/h2\u003e\n\u003cp\u003eThe A90 Discrete is built to serve as the central control unit for any high-end audio setup, functioning as both a premium amplifier and a preamplifier.\u003c\/p\u003e\n\u003ch3\u003eIntegrated High-Performance Preamplifier\u003c\/h3\u003e\n\u003cp\u003eThe unit functions as a state-of-the-art \u003cb\u003ePreamplifier\u003c\/b\u003e with ultra-low noise and exceptional dynamic range. This high-fidelity preamp mode is perfect for driving active speakers or a dedicated power amplifier with flawless signal integrity.\u003c\/p\u003e\n\u003ch3\u003eFull Balanced XLR and RCA I\/O\u003c\/h3\u003e\n\u003cp\u003eThe A90 Discrete provides comprehensive input and output flexibility with both \u003cb\u003eBalanced XLR\u003c\/b\u003e and \u003cb\u003eSingle-Ended RCA\u003c\/b\u003e connections. This ensures perfect integration with any high-end DAC (such as the D90 III) and seamless signal routing between components.\u003c\/p\u003e\n\u003ch2\u003e\u003cb\u003eUser-Focused Design and Control\u003c\/b\u003e\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003eThree Gain Settings:\u003c\/b\u003e Offers \u003cb\u003ethree selectable gain settings\u003c\/b\u003e (Low, Mid, High) for perfect matching with any headphone sensitivity, from IEMs to planar magnetics.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003eRelay Volume Control:\u003c\/b\u003e Utilizes a highly precise \u003cb\u003erelay-based volume control\u003c\/b\u003e system, ensuring flawless channel matching and eliminating volume tracking errors common with analog potentiometers.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003eUniversal Headphone Outputs:\u003c\/b\u003e Equipped with \u003cb\u003e6.35mm Single-Ended, 4.4mm Balanced, and XLR 4-Pin Balanced\u003c\/b\u003e outputs, providing connection compatibility for all professional and audiophile headphones.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"TOPPING","offers":[{"title":"Black \/ US","offer_id":43751443988573,"sku":null,"price":599.0,"currency_code":"USD","in_stock":true},{"title":"Black \/ EU","offer_id":43756022956125,"sku":null,"price":599.0,"currency_code":"USD","in_stock":true},{"title":"Black \/ UK","offer_id":43756022988893,"sku":null,"price":599.0,"currency_code":"USD","in_stock":true},{"title":"Black \/ AU","offer_id":43756023021661,"sku":null,"price":599.0,"currency_code":"USD","in_stock":true},{"title":"Silvery \/ US","offer_id":43751444021341,"sku":null,"price":599.0,"currency_code":"USD","in_stock":true},{"title":"Silvery \/ EU","offer_id":43756023054429,"sku":null,"price":599.0,"currency_code":"USD","in_stock":true},{"title":"Silvery \/ UK","offer_id":43756023087197,"sku":null,"price":599.0,"currency_code":"USD","in_stock":true},{"title":"Silvery \/ AU","offer_id":43756023119965,"sku":null,"price":599.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0604\/7422\/8829\/files\/TOPPINGA90Discrete-P5.webp?v=1761709723","url":"https:\/\/emiuzek.com\/ja\/products\/topping-a90-discrete","provider":"EMiUZEK","version":"1.0","type":"link"}