{"product_id":"fezz-ovo-headphone-amplifier","title":"Fezz OVO Tube Headphone 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-fezz-ovo-headphone-amp-tab-1:checked ~ .hb-tab-labels label[for=\"hb-fezz-ovo-headphone-amp-tab-1\"],\n  #hb-fezz-ovo-headphone-amp-tab-2:checked ~ .hb-tab-labels label[for=\"hb-fezz-ovo-headphone-amp-tab-2\"] {\n    background: #fff;\n    border-bottom: 2px solid rgba(0,0,0,0.65);\n  }\n\n  #hb-fezz-ovo-headphone-amp-tab-1:checked ~ .hb-panels #hb-fezz-ovo-headphone-amp-panel-1,\n  #hb-fezz-ovo-headphone-amp-tab-2:checked ~ .hb-panels #hb-fezz-ovo-headphone-amp-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-fezz-ovo-headphone-amp-tab-1\" name=\"hb-fezz-ovo-headphone-amp-tabs\" type=\"radio\"\u003e \u003cinput id=\"hb-fezz-ovo-headphone-amp-tab-2\" name=\"hb-fezz-ovo-headphone-amp-tabs\" type=\"radio\"\u003e\n\u003cdiv class=\"hb-tab-labels\"\u003e\n\u003clabel for=\"hb-fezz-ovo-headphone-amp-tab-1\"\u003eProduct Summary \u0026amp; Benefits\u003c\/label\u003e \u003clabel for=\"hb-fezz-ovo-headphone-amp-tab-2\"\u003eTech Specs \u0026amp; Box Contents\u003c\/label\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hb-panels\"\u003e\n\u003cdiv id=\"hb-fezz-ovo-headphone-amp-panel-1\" class=\"hb-panel\"\u003e\n\u003ch3\u003eProduct Summary\u003c\/h3\u003e\n\u003cp\u003eThe Fezz OVO is a premium valve headphone amplifier designed for listeners who want the intimacy, warmth and immediacy of a single-ended tube design. Working in pure Class A triode configuration, it brings Fezz’s valve amplifier character to personal listening, giving headphones a rich, spacious and highly involving sound.\u003c\/p\u003e\n\u003cp\u003eUsing EL84 output valves and a 12AX7 input valve, the OVO is built to drive a wide range of headphones with confidence. Switchable impedance settings make it easier to match different headphones, from easier portable models through to more demanding high-end designs, while balanced and unbalanced headphone outputs give useful connection flexibility.\u003c\/p\u003e\n\u003cp\u003eThe OVO also includes RCA and XLR inputs, RCA and XLR outputs for system integration, and a Fezz extension slot for optional upgrade modules. Available in Fezz’s distinctive colour finishes, it is a serious headphone amplifier for customers who want a more expressive, high-end listening experience from their headphone system.\u003c\/p\u003e\n\u003ch3\u003eKey Benefits\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003ePure Class A single-ended tube design delivers a rich, fluid and expressive headphone listening experience\u003c\/li\u003e\n\u003cli\u003eEL84 output valves give the amplifier a natural, engaging and characterful presentation\u003c\/li\u003e\n\u003cli\u003eSwitchable impedance settings help match the amplifier to a wide range of headphones\u003c\/li\u003e\n\u003cli\u003eBalanced and unbalanced headphone outputs support modern headphone cable options\u003c\/li\u003e\n\u003cli\u003eRCA and XLR inputs allow easy connection to both single-ended and balanced source components\u003c\/li\u003e\n\u003cli\u003eRCA and XLR outputs allow the OVO to sit neatly within a wider hi-fi system\u003c\/li\u003e\n\u003cli\u003eFezz extension slot allows compatible optional modules to be added where required\u003c\/li\u003e\n\u003cli\u003eDistinctive Fezz finish options make it a visually striking part of a headphone setup\u003c\/li\u003e\n\u003cli\u003e2 years manufacturer's warranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv id=\"hb-fezz-ovo-headphone-amp-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 headphone amplifier\u003c\/li\u003e\n\u003cli\u003eAmplifier Class: Class A\u003c\/li\u003e\n\u003cli\u003eCircuit Topology: Single-ended triode configuration\u003c\/li\u003e\n\u003cli\u003eOutput Valves: 2 x EL84\u003c\/li\u003e\n\u003cli\u003eInput Valve: 1 x 12AX7\u003c\/li\u003e\n\u003cli\u003eOutput Power: 1500mW\u003c\/li\u003e\n\u003cli\u003eBias System: Automatic bias\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eHeadphone Support\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eHeadphone Impedance Range: 16 – 600 ohms\u003c\/li\u003e\n\u003cli\u003eImpedance Settings: Low, Mid and High\u003c\/li\u003e\n\u003cli\u003eHeadphone Outputs: Balanced XLR, 4.4mm Pentaconn and 6.3mm jack\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eInputs \u0026amp; Outputs\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eAnalogue Inputs: 1 x RCA\u003c\/li\u003e\n\u003cli\u003eBalanced Inputs: 1 x XLR\u003c\/li\u003e\n\u003cli\u003eAnalogue Outputs: 1 x RCA\u003c\/li\u003e\n\u003cli\u003eBalanced Outputs: 1 x XLR\u003c\/li\u003e\n\u003cli\u003eExtension Slot: Compatible with selected optional Fezz extension modules\u003c\/li\u003e\n\u003cli\u003eOptional Module Compatibility: Bluetooth, DAC, phono or additional input module options where available\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003ePerformance\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eFrequency Response: 16Hz – 120kHz at -3dB, 32 ohms\u003c\/li\u003e\n\u003cli\u003eTotal Harmonic Distortion: \u0026lt;1% at 1000mW\u003c\/li\u003e\n\u003cli\u003eInput Sensitivity: 850mV\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003ePower\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003ePower Consumption: 40W\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eDimensions\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eWidth: 355mm\u003c\/li\u003e\n\u003cli\u003eDepth: 380mm\u003c\/li\u003e\n\u003cli\u003eHeight: 100mm\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eWeight\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e10.5kg\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eColour Options\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eBlack Ice\u003c\/li\u003e\n\u003cli\u003eMoonlight\u003c\/li\u003e\n\u003cli\u003eSunlight\u003c\/li\u003e\n\u003cli\u003eRepublika\u003c\/li\u003e\n\u003cli\u003eEvergreen\u003c\/li\u003e\n\u003cli\u003eBig Calm\u003c\/li\u003e\n\u003cli\u003eBurning Red\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eWhat’s in the Box\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eFezz OVO tube headphone amplifier\u003c\/li\u003e\n\u003cli\u003eEL84 output valves\u003c\/li\u003e\n\u003cli\u003e12AX7 input valve\u003c\/li\u003e\n\u003cli\u003ePower cable\u003c\/li\u003e\n\u003cli\u003eCotton gloves\u003c\/li\u003e\n\u003cli\u003eProduct documentation\u003c\/li\u003e\n\u003cli\u003eRemote control where supplied with selected configuration\u003c\/li\u003e\n\u003cli\u003eProtective tube cage where supplied with selected configuration\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Fezz Audio","offers":[{"title":"Big Calm","offer_id":58170311868803,"sku":null,"price":3495.0,"currency_code":"GBP","in_stock":true},{"title":"Black Ice","offer_id":58170312065411,"sku":null,"price":3495.0,"currency_code":"GBP","in_stock":true},{"title":"Republika","offer_id":58170312032643,"sku":null,"price":3495.0,"currency_code":"GBP","in_stock":true},{"title":"EverGreen","offer_id":58170311934339,"sku":null,"price":3495.0,"currency_code":"GBP","in_stock":true},{"title":"Burning Red","offer_id":58170311999875,"sku":null,"price":3495.0,"currency_code":"GBP","in_stock":true},{"title":"Sunlight","offer_id":58170311901571,"sku":null,"price":3495.0,"currency_code":"GBP","in_stock":true},{"title":"Moonlight","offer_id":58170311967107,"sku":null,"price":3495.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0160\/4606\/3670\/files\/Untitled_3500x3500px_-2026-06-02T152110.366.png?v=1780410237","url":"https:\/\/www.holburnonline.co.uk\/products\/fezz-ovo-headphone-amplifier","provider":"Holburn Online","version":"1.0","type":"link"}