{"product_id":"psvane-summit-series-211-vacuum-tube","title":"PSVANE Summit 211 Vacuum Tube","description":"\u003cul class=\"a-unordered-list a-vertical a-spacing-mini\"\u003e\n\u003cli class=\"a-spacing-mini\"\u003e\u003cspan class=\"a-list-item\"\u003eThe SUMMIT 211 Power Tube is defined by a transparent, fast, and spacious presentation. Bass extends deeply with clear definition, speed, and control. The midrange is open and natural while retaining convincing density and texture. Treble is extended and unrestrained, revealing fine detail and a natural sense of air.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli class=\"a-spacing-mini\"\u003e\u003cspan class=\"a-list-item\"\u003eEven during complex musical passages, the SUMMIT 211 power triode tube accurately preserves the separation, positioning, and dynamic relationships between instruments. It retains the characteristic immediacy, purity, and resolving ability of the 211 while incorporating the balance and fluidity of the SUMMIT series, producing a sound that is precise without dryness and refined without sacrificing power.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli class=\"a-spacing-mini\"\u003e\u003cspan class=\"a-list-item\"\u003eThe SUMMIT 211 valve incorporates PSVANE’s HPC multi-layer composite coating technology. By improving the consistency of electron emission and thermal stability, the coating helps reduce the effects of high-temperature oxidation and outgassing on vacuum integrity. This enables the tube to maintain stable operation under high plate-voltage conditions while helping reduce noise and nonlinear distortion.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli class=\"a-spacing-mini\"\u003e\u003cspan class=\"a-list-item\"\u003eThe SUMMIT 211 tube also incorporates PSVANE’s patented composite-anode technology under Chinese Invention Patent No. ZL 2018 1 1103880.X. The composite anode combines a molybdenum mesh with graphite, balancing high-temperature tolerance with mechanical stability. This construction provides a reliable technical foundation for well-resolved detail, wide dynamic range, and consistent control across the frequency spectrum.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli class=\"a-spacing-mini\"\u003e\u003cspan class=\"a-list-item\"\u003eEvery PSVANE SUMMIT series tube is selected from among the finest-performing vacuum tubes produced by PSVANE. Only the top-performing 2–3% of tubes from each production batch qualify for the SUMMIT series. Each selected tube must then complete a rigorous 30-hour burn-in test to verify its operating stability and ensure that every tube bearing the SUMMIT name meets the standards expected of the series.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli class=\"a-spacing-mini\"\u003e\u003cspan class=\"a-list-item\"\u003eA reliable dependable choice for replacing worn or faulty vacuum tubes to restore your equipment to peak performance. We also offer a 24-month product warranty.\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"PSVANE","offers":[{"title":"1 PCS","offer_id":52537813336362,"sku":"S211 1PCS","price":464.99,"currency_code":"USD","in_stock":true},{"title":"2pcs Matched Pair","offer_id":52537813369130,"sku":"S211 2PCS","price":929.99,"currency_code":"USD","in_stock":true},{"title":"4pcs Matched Quad","offer_id":52537813401898,"sku":"S211 4PCS","price":1859.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0895\/4055\/9146\/files\/S211-7.jpg?v=1788851369","url":"https:\/\/psvane.co\/products\/psvane-summit-series-211-vacuum-tube","provider":"PSVANE","version":"1.0","type":"link"}