{"product_id":"ds-audio-tb-50-tube-phono-equalizer","title":"DS Audio TB-50 Tube Phono Equalizer","description":"\u003ch4 class=\"content-en\"\u003e\u003cspan dir=\"auto\"\u003eHybrid EQ Amplifier with Tube Buffer Output\u003c\/span\u003e\u003c\/h4\u003e\n\u003cp\u003e\u003cspan dir=\"auto\"\u003e\u003cspan\u003e\u003cstrong\u003eDS Audio TB-50\u003c\/strong\u003e employs a hybrid architecture in which the amplification circuit, including RIAA equalisation, is implemented in solid-state circuitry, while the final output stage passes through a vacuum tube buffer. This combination delivers ideal signal amplification through solid-state design, together with the rich harmonic expression that only vacuum tubes can provide. The TB-50 uses the same ECC82 (12AU7) tubes as our flagship TB-100, bringing the world of DS tube Audio sound to a broader range of music lovers.\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch4 class=\"content-en\"\u003e\u003cspan dir=\"auto\"\u003eHeat Dissipation Duct Design\u003c\/span\u003e\u003c\/h4\u003e\n\u003cp\u003e\u003cspan dir=\"auto\"\u003e\u003cmeta charset=\"utf-8\"\u003e\n\u003cspan\u003eA dedicated duct structure surrounds the vacuum tubes, drawing fresh air from outside the chassis and efficiently venting the heat generated by the tubes. This thermal management keeps the internal temperature within an optimal range, stabilising the operating point of the tubes and ensuring consistent sound quality even during extended listening sessions.\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch4 class=\"content-en\"\u003e\u003cspan dir=\"auto\"\u003eIdeal Cartridge Connection via Current Drive \u0026amp; Transmission\u003c\/span\u003e\u003c\/h4\u003e\n\u003cp\u003e\u003cspan dir=\"auto\"\u003e\u003cmeta charset=\"utf-8\"\u003e\n\u003cspan\u003eFor both power delivery to the cartridge and transmission of the music signal, the TB-50 employs a current-drive and current-transmission approach that is inherently less susceptible to the influence of phono cables and contact points. Compared with conventional voltage transmission, this approach minimizes the impact of cable length and connector quality, achieving the ideal cartridge connection that DS Audio has long advocated and drawing out the full potential of the optical cartridge.\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch4 class=\"content-en\"\u003e\u003cspan dir=\"auto\"\u003eAdjustable Tube Illumination\u003c\/span\u003e\u003c\/h4\u003e\n\u003cp\u003e\u003cspan dir=\"auto\"\u003e\u003cmeta charset=\"utf-8\"\u003e\n\u003cspan\u003eLED illumination positioned beneath each vacuum tube can be adjusted to suit the room or listening mood. A continuously variable control on the rear panel allows precise dimming, combining functional visibility with refined aesthetic presence.\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e","brand":"DS Audio","offers":[{"title":"Default Title","offer_id":49190902956222,"sku":null,"price":9995.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0634\/1853\/2030\/files\/L1031650-scaled_resize.webp?v=1790732233","url":"https:\/\/grooveaudio.com\/products\/ds-audio-tb-50-tube-phono-equalizer","provider":"Groove Audio","version":"1.0","type":"link"}