{"product_id":"quest-pb-4300d-4-channel-class-d-power-amplifier-4-x-300w","title":"Quest PB-4300D 4 Channel Class D Power Amplifier - 4 x 300W","description":"\u003cp\u003e\u003cspan\u003eThe \u003c\/span\u003e\u003cstrong\u003eQuest Commercial\u003cspan\u003e \u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003ePB-4120D and \u003c\/span\u003e\u003cstrong\u003ePB-4300D\u003c\/strong\u003e\u003cspan\u003e are versatile and efficient Class D, digital multi-channel power amplifiers of advanced design, able to drive 70\/100 V-line loudspeaker systems directly as well as low impedance 4\/8ohms speaker loads. The PB-4120D can deliver 120 watts RMS per channel, and the PB-4300D can deliver 300 watts RMS per channel. The PB-Series advanced technology, clear sound, lightweight and reliable performance makes it ideal for any distributed sound system installation.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFeatures\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eThe amplifiers deliver either 120W or 300W of clean power per channel at 70\/100V and 4 Ohms\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eClass D amplifier operating at 85% efficiency using switching power supplies. The\u003c\/li\u003e\n\u003cli\u003ePB-Series amplifiers generate virtually no heat, thanks to their low current draw.\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eBuilt-in70\/100V output transformers with flat frequency response from 40Hz to\u003c\/li\u003e\n\u003cli\u003e20kHz provide constant voltage for distributed speaker systems.\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eIndependent input level controls for each channel allow precise adjustments.\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eClean, crisp sound – Impressive audio specifications such as \u0026lt; 0.3% THD, dynamic range of 105 dB, crosstalk of \u0026gt; 70 dB, and frequency response of 50 Hz to 18 kHz guarantee ultra-clean sound quality.\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eLED signal indicators for each channel continuously display power output levels and allow you to correct for overloading (clipping) conditions.\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eForced air cooling via internal fan provides reliable performance without thermal and overheating problems.\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eInput connections for each channel are made using Euroblock connectors to accommodate both balanced and unbalanced signals sources.\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eOutput connections for each channel are made using Euroblock connectors which accept 12 gauge wire.\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eCSA\/UL approved.\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eClass D \u0026amp; switching power supply\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003ePB-4120D @ 120V \/ 5.8A\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003ePB-4300D @ 120V \/ 13.9A\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eThe PB-Series amplifiers can be mounted in any standard 19” rack (taking just two rack spaces), making it easy to integrate into any fixed or traveling PA rig.\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eHoused in a double rack space (2RU) 19” rack mounting housing.\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eThree-year warranty.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eSpecifications\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eRated Power (1kHz, 1%THD+N )\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e300W x4 (70\/100V)\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e150W x4 (8Ω)\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e300W x4 (4Ω)\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eOutput Impedance: 4Ω, 100V (33.3 Ω) or 70V (16.3 Ω)\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eInput Sensitivity: 1Vrms\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eInput Impedance: 10KΩ Balanced\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eFrequency Response: 50Hz - 18kHz\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eTotal Harmonic Distortion + Noise: \u0026lt; 0.3%\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eSignal to Noise Ratio: \u0026gt; 90 dB\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eCommon Model rejection: 70 dB\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eCrosstalk: \u0026gt; 70 dB\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eHigh-Pass filter switch: 400 Hz\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eProtection: DC-Short Circuit, Over Heating, Overload\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eCooling system: Temperature controlled fan\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eAmplifier Technology: Class D\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003ePower supply: 120V AC, 50\/60Hz\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eWeight (Net): 21.4 lb3 (9.7 Kg)\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eUnit Dimension (WxHxD): 19 x 14.75 x 3.5 in (483 x 375 x 89mm)\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Quest","offers":[{"title":"Default Title","offer_id":42346115399759,"sku":"PB-4300D","price":1160.99,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0054\/9466\/9382\/files\/QuestPB412300D.jpg?v=1734458208","url":"https:\/\/shop.musicredone.com\/products\/quest-pb-4300d-4-channel-class-d-power-amplifier-4-x-300w","provider":"RedOne Music Canada","version":"1.0","type":"link"}