{"product_id":"fezz-lybra-300b-evo-tube-amplifier","title":"Fezz Lybra 300B EVO Tube Amplifier","description":"\u003cstyle\u003e\n  .hb-tabs { margin: 18px 0; border: 1px solid rgba(0,0,0,0.12); border-radius: 10px; overflow: hidden; }\n  .hb-tabs input { display: none; }\n  .hb-tab-labels { display: flex; gap: 0; border-bottom: 1px solid rgba(0,0,0,0.12); background: rgba(0,0,0,0.03); }\n  .hb-tab-labels label {\n    flex: 1;\n    padding: 12px 14px;\n    cursor: pointer;\n    font-weight: 600;\n    text-align: center;\n    user-select: none;\n  }\n  .hb-panels { padding: 14px 16px; background: #fff; }\n  .hb-panel { display: none; }\n\n  #hb-fezzlybra300b-tab-1:checked ~ .hb-tab-labels label[for=\"hb-fezzlybra300b-tab-1\"],\n  #hb-fezzlybra300b-tab-2:checked ~ .hb-tab-labels label[for=\"hb-fezzlybra300b-tab-2\"] {\n    background: #fff;\n    border-bottom: 2px solid rgba(0,0,0,0.65);\n  }\n\n  #hb-fezzlybra300b-tab-1:checked ~ .hb-panels #hb-fezzlybra300b-panel-1,\n  #hb-fezzlybra300b-tab-2:checked ~ .hb-panels #hb-fezzlybra300b-panel-2 {\n    display: block;\n  }\n\n  .hb-panels h3 { margin: 18px 0 12px; font-size: 1.05em; }\n  .hb-panels p { margin: 20px 0 6px; }\n  .hb-panels ul { margin: 8px 0 20px 18px; }\n\u003c\/style\u003e\n\u003cdiv class=\"hb-tabs\"\u003e\n\u003cinput checked id=\"hb-fezzlybra300b-tab-1\" name=\"hb-fezzlybra300b-tabs\" type=\"radio\"\u003e \u003cinput id=\"hb-fezzlybra300b-tab-2\" name=\"hb-fezzlybra300b-tabs\" type=\"radio\"\u003e\n\u003cdiv class=\"hb-tab-labels\"\u003e\n\u003clabel for=\"hb-fezzlybra300b-tab-1\"\u003eProduct Summary \u0026amp; Benefits\u003c\/label\u003e \u003clabel for=\"hb-fezzlybra300b-tab-2\"\u003eTech Specs \u0026amp; Box Contents\u003c\/label\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hb-panels\"\u003e\n\u003cdiv id=\"hb-fezzlybra300b-panel-1\" class=\"hb-panel\"\u003e\n\u003ch3\u003eProduct Summary\u003c\/h3\u003e\n\u003cp\u003eThe Fezz Lybra 300B EVO Tube Amplifier is a high-end integrated valve amplifier designed for listeners who want the distinctive musical character of 300B tubes combined with greater drive and scale. Hand-built in Poland, the Lybra uses a parallel single-ended Class A design to deliver a rich, spacious and highly engaging presentation.\u003c\/p\u003e\n\u003cp\u003eUsing four 300B output tubes working in parallel pairs, supported by 6SN7 and 12AX7 driver valves, the Lybra delivers the tonal purity, expressive midrange and natural flow that 300B amplifiers are known for, while offering more power than a traditional single-ended 300B design.\u003c\/p\u003e\n\u003cp\u003eHigh-quality toroidal transformers designed by Toroidy form the heart of the amplifier’s power and output stages, helping provide excellent bandwidth, low noise and stable operation. Automatic biasing also simplifies ownership and helps maintain consistent performance.\u003c\/p\u003e\n\u003cp\u003eWith its exposed tube layout, heavy steel chassis and distinctive Fezz styling, the Lybra 300B EVO makes a striking centrepiece for a high-quality hi-fi system and is particularly well suited to partnering efficient loudspeakers.\u003c\/p\u003e\n\u003ch3\u003eKey Benefits\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eHigh-end 300B integrated valve amplifier\u003c\/li\u003e\n\u003cli\u003eParallel single-ended Class A amplifier topology\u003c\/li\u003e\n\u003cli\u003e4 × 300B output tubes\u003c\/li\u003e\n\u003cli\u003e2 × 6SN7 and 1 × 12AX7 driver tubes\u003c\/li\u003e\n\u003cli\u003e15 W per channel output power\u003c\/li\u003e\n\u003cli\u003eHigh-quality Toroidy toroidal transformers\u003c\/li\u003e\n\u003cli\u003eAutomatic bias system\u003c\/li\u003e\n\u003cli\u003eRemote control included\u003c\/li\u003e\n\u003cli\u003eHand-built in Poland\u003c\/li\u003e\n\u003cli\u003e3 Years' Manufacturers Warranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv id=\"hb-fezzlybra300b-panel-2\" class=\"hb-panel\"\u003e\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eAmplifier Design\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eType: Vacuum tube stereo integrated amplifier\u003c\/li\u003e\n\u003cli\u003eCircuit Topology: Parallel single-ended Class A\u003c\/li\u003e\n\u003cli\u003eOutput Tubes: 4 × 300B\u003c\/li\u003e\n\u003cli\u003eDriver Tubes: 2 × 6SN7, 1 × 12AX7\u003c\/li\u003e\n\u003cli\u003eBias System: Automatic bias\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003ePerformance\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eOutput Power: 2 × 15 W\u003c\/li\u003e\n\u003cli\u003eSpeaker Impedance: 4 Ω \/ 8 Ω\u003c\/li\u003e\n\u003cli\u003eFrequency Response: 12 Hz – 60 kHz\u003c\/li\u003e\n\u003cli\u003eTotal Harmonic Distortion: \u0026lt;0.25%\u003c\/li\u003e\n\u003cli\u003ePower Consumption: 180 W\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eConnectivity\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eInputs: 3 × RCA line inputs\u003c\/li\u003e\n\u003cli\u003eOutputs: Speaker terminals (4 Ω \/ 8 Ω)\u003c\/li\u003e\n\u003cli\u003eAdditional Features: Remote control, auto bias\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003ePhysical\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eDimensions (W × D × H): 420 × 410 × 175 mm\u003c\/li\u003e\n\u003cli\u003eWeight: 18 kg\u003c\/li\u003e\n\u003cli\u003eChassis: Steel construction with exposed tube layout\u003c\/li\u003e\n\u003cli\u003eAvailable Colours: Black Ice, Big Calm, Burning Red, Evergreen, Moonlight, Republika, Sunlight\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eWhat’s in the Box\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eFezz Lybra 300B EVO tube amplifier\u003c\/li\u003e\n\u003cli\u003e4 × 300B output tubes\u003c\/li\u003e\n\u003cli\u003e2 × 6SN7 driver tubes\u003c\/li\u003e\n\u003cli\u003e1 × 12AX7 driver tube\u003c\/li\u003e\n\u003cli\u003eRemote control\u003c\/li\u003e\n\u003cli\u003eProtective tube cage\u003c\/li\u003e\n\u003cli\u003ePower cable\u003c\/li\u003e\n\u003cli\u003eProduct documentation\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Fezz Audio","offers":[{"title":"Sunlight","offer_id":54892275401091,"sku":"","price":5495.0,"currency_code":"GBP","in_stock":true},{"title":"Big Calm","offer_id":54892275237251,"sku":"","price":5495.0,"currency_code":"GBP","in_stock":true},{"title":"Burning Red","offer_id":54892275270019,"sku":"","price":5495.0,"currency_code":"GBP","in_stock":true},{"title":"Republika","offer_id":54892275368323,"sku":"","price":5495.0,"currency_code":"GBP","in_stock":true},{"title":"EverGreen","offer_id":54892275302787,"sku":"","price":5495.0,"currency_code":"GBP","in_stock":true},{"title":"Moonlight","offer_id":54892275335555,"sku":"","price":5495.0,"currency_code":"GBP","in_stock":true},{"title":"Black Ice","offer_id":54892275204483,"sku":"","price":5495.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0160\/4606\/3670\/files\/Fezz-EVO-Lybra-300b-_Sunlight_-1-ii.jpg?v=1773489583","url":"https:\/\/www.holburnonline.co.uk\/products\/fezz-lybra-300b-evo-tube-amplifier","provider":"Holburn Online","version":"1.0","type":"link"}