{"product_id":"ok-555-300w-power-amplifier","title":"OK-555 300W Power Amplifier","description":"\u003cp data-start=\"203\" data-end=\"291\"\u003e\u003cstrong data-start=\"203\" data-end=\"291\"\u003e300W + 300W @ 8Ω | Professional 2U Rack Amplifier | Bridge \/ Parallel \/ Stereo Modes\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp data-start=\"293\" data-end=\"484\"\u003eThe OK-555 is a high-performance post-stage power amplifier delivering \u003cstrong data-start=\"364\" data-end=\"385\"\u003e300W + 300W at 8Ω\u003c\/strong\u003e and up to \u003cstrong data-start=\"396\" data-end=\"417\"\u003e450W + 450W at 4Ω\u003c\/strong\u003e, designed for demanding commercial and professional audio systems.\u003c\/p\u003e\n\u003cp data-start=\"486\" data-end=\"619\"\u003eBuilt with premium internal components and advanced protection systems, it delivers powerful, stable, and low-distortion performance.\u003c\/p\u003e\n\u003chr data-start=\"621\" data-end=\"624\"\u003e\n\u003ch3 data-start=\"626\" data-end=\"642\"\u003eKey Features\u003c\/h3\u003e\n\u003cul data-start=\"644\" data-end=\"1003\"\u003e\n\u003cli data-start=\"644\" data-end=\"664\"\u003e\n\u003cp data-start=\"646\" data-end=\"664\"\u003e300W + 300W @ 8Ω\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"665\" data-end=\"685\"\u003e\n\u003cp data-start=\"667\" data-end=\"685\"\u003e450W + 450W @ 4Ω\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"686\" data-end=\"721\"\u003e\n\u003cp data-start=\"688\" data-end=\"721\"\u003eBridge, Parallel \u0026amp; Stereo modes\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"722\" data-end=\"769\"\u003e\n\u003cp data-start=\"724\" data-end=\"769\"\u003eHigh-power Sanken \/ Toshiba amplifier tubes\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"770\" data-end=\"802\"\u003e\n\u003cp data-start=\"772\" data-end=\"802\"\u003eHeavy-duty power transformer\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"803\" data-end=\"845\"\u003e\n\u003cp data-start=\"805\" data-end=\"845\"\u003eLarge-capacity audio filter capacitors\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"846\" data-end=\"880\"\u003e\n\u003cp data-start=\"848\" data-end=\"880\"\u003eEfficient 2U rack-mount design\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"881\" data-end=\"917\"\u003e\n\u003cp data-start=\"883\" data-end=\"917\"\u003eDual-speed low-noise cooling fan\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"918\" data-end=\"1003\"\u003e\n\u003cp data-start=\"920\" data-end=\"1003\"\u003eAdvanced protection (Short circuit \/ Overload \/ High temperature \/ RF protection)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"1005\" data-end=\"1008\"\u003e\n\u003ch3 data-start=\"1010\" data-end=\"1028\"\u003eSpecifications\u003c\/h3\u003e\n\u003cul data-start=\"1030\" data-end=\"1320\"\u003e\n\u003cli data-start=\"1030\" data-end=\"1045\"\u003e\n\u003cp data-start=\"1032\" data-end=\"1045\"\u003eChannels: 2\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1046\" data-end=\"1080\"\u003e\n\u003cp data-start=\"1048\" data-end=\"1080\"\u003eFrequency Response: 20Hz–20KHz\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1081\" data-end=\"1114\"\u003e\n\u003cp data-start=\"1083\" data-end=\"1114\"\u003eSignal-to-Noise Ratio: ≥100dB\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1115\" data-end=\"1130\"\u003e\n\u003cp data-start=\"1117\" data-end=\"1130\"\u003eTHD: \u0026lt;0.05%\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1131\" data-end=\"1153\"\u003e\n\u003cp data-start=\"1133\" data-end=\"1153\"\u003eVoltage Gain: 31dB\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1154\" data-end=\"1190\"\u003e\n\u003cp data-start=\"1156\" data-end=\"1190\"\u003eInput Sensitivity: 0.775V \/ 1.4V\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1191\" data-end=\"1215\"\u003e\n\u003cp data-start=\"1193\" data-end=\"1215\"\u003eLoad Impedance: 4–8Ω\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1216\" data-end=\"1272\"\u003e\n\u003cp data-start=\"1218\" data-end=\"1272\"\u003eInput Impedance: 20KΩ (Balanced) \/ 10KΩ (Unbalanced)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1273\" data-end=\"1297\"\u003e\n\u003cp data-start=\"1275\" data-end=\"1297\"\u003ePower Supply: AC220V\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1298\" data-end=\"1320\"\u003e\n\u003cp data-start=\"1300\" data-end=\"1320\"\u003eNet Weight: 11.6kg\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"1322\" data-end=\"1325\"\u003e\n\u003cp data-start=\"1327\" data-end=\"1494\"\u003eEngineered for high-output commercial applications, the OK-555 is ideal for PA systems, event setups, performance venues, and professional multi-speaker installations.\u003c\/p\u003e","brand":"Shile Audio","offers":[{"title":"Default Title","offer_id":47798283927806,"sku":null,"price":509.6,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0794\/0875\/9038\/files\/110f5b7f-3da3-4570-bf92-705fce04fa6a.jpg_640xaf.jpg?v=1770959854","url":"https:\/\/shileaudio.com.au\/products\/ok-555-300w-power-amplifier","provider":"Shile Audio","version":"1.0","type":"link"}