{"product_id":"adcom-gfa-5705-5-channel-amplifier","title":"Adcom GFA-5705 5 Channel Amplifier","description":"\u003cdiv class=\"elementor-column elementor-col-50 elementor-top-column elementor-element elementor-element-6ddb067d\" data-id=\"6ddb067d\" data-element_type=\"column\" data-e-type=\"column\"\u003e\n\u003cdiv class=\"elementor-widget-wrap elementor-element-populated\"\u003e\n\u003cdiv class=\"elementor-element elementor-element-5379df71 elementor-widget elementor-widget-heading\" data-id=\"5379df71\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\"\u003e\n\u003cdiv class=\"elementor-widget-container\"\u003e\n\u003ch1 class=\"elementor-heading-title elementor-size-default\"\u003eAdcom GFA-5705 5 Channel Stereo Power Amplifier\u003c\/h1\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/adcom.com\/wp-content\/uploads\/gfa-5705-slide1.jpg\"\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"elementor-element elementor-element-13152ae2 elementor-widget elementor-widget-heading\" data-id=\"13152ae2\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\"\u003e\n\u003cdiv class=\"elementor-widget-container\"\u003e\u003cspan class=\"elementor-heading-title elementor-size-medium\"\u003eThe GFA-5705 amplifier can drive a very broad range of loudspeakers, including those with very low impedances, at sustained, high-power levels, even when the impedances are highly reactive. Great care was taken to insure that the distortion in the amplifier would remain extremely low. This 5-channel power amplifier is ideal for home theater use.\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv class=\"elementor-widget-container\"\u003e\n\u003cdiv class=\"elementor-element elementor-element-2b3c253 elementor-widget elementor-widget-heading\" data-id=\"2b3c253\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\"\u003e\n\u003cdiv class=\"elementor-widget-container\"\u003e\n\u003ch2 class=\"elementor-heading-title elementor-size-xl\"\u003ePower\u003c\/h2\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/adcom.com\/wp-content\/uploads\/gfa-5705-slide5.jpg\"\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"elementor-element elementor-element-3c01040b elementor-widget elementor-widget-text-editor\" data-id=\"3c01040b\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\"\u003e\n\u003cdiv class=\"elementor-widget-container\"\u003e\n\u003cp\u003eThe power supply in the GFA-5705 5-channel amplifier has enormous reserve with an extremely large transformer feeding a storage bank of 30000uF per channel \u0026amp; total of 150,000uF of filter capacitance. The transformer itself was designed for extremely good regulation, insuring stable voltages regardless of the power demands from the amplifier. Its higher efficiency was insured by using a toroidal design.\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/adcom.com\/wp-content\/uploads\/gfa-5705-slide6.jpg\"\u003e\u003c\/p\u003e\n\u003cdiv class=\"elementor-element elementor-element-443738ab elementor-widget elementor-widget-heading\" data-id=\"443738ab\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\"\u003e\n\u003cdiv class=\"elementor-widget-container\"\u003e\n\u003ch2 class=\"elementor-heading-title elementor-size-xl\"\u003e5-channel power amplifier\u003c\/h2\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"elementor-element elementor-element-43366034 elementor-widget elementor-widget-text-editor\" data-id=\"43366034\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\"\u003e\n\u003cdiv class=\"elementor-widget-container\"\u003e\n\u003cp\u003eGreat care has been taken by ADCOM to assure that your 5-channel power amplifier is as flawless in appearance as it is electronically. The front panel is a heavy- gauge, high-grade aluminum extrusion carefully finished and anodized for durability. The chassis, top cover and rear panel are of heavy-gauge steel, both painted and baked. If the front panel, top or sides should become dusty or fingerprinted, they can be cleaned with a Swifter and\/or a clean, soft, Lintless, microfiber cloth,slightly dampened with a very mild detergent solution or nonammonia glass cleaner.\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/adcom.com\/wp-content\/uploads\/gfa-5705-slide7.jpg\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003eHome theater authority — all five channels, no compromise.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003eThe\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eAdcom GFA-5705\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eis a high-performance 5-channel power amplifier engineered specifically for home theater systems that demand real power across every channel. Delivering\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e200 watts per channel into 8 ohms\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e— with all five channels driven simultaneously — the GFA-5705 brings the same high-current authority and low-distortion performance Adcom is known for to the full surround experience.\u003c\/p\u003e\n\u003cp\u003eThe GFA-5705 is built to drive a very broad range of loudspeakers, including those with very low impedances, at sustained high-power levels — even when impedances are highly reactive. Great care was taken to ensure distortion remains extremely low under these demanding conditions, making it one of the most capable 5-channel amplifiers available at its price point.\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/adcom.com\/wp-content\/uploads\/gfa-5705-slide8.jpg\"\u003e\u003c\/p\u003e\n\u003ch3\u003eMassive Power Supply\u003c\/h3\u003e\n\u003cp\u003eAt the core of the GFA-5705 is a substantial power supply built around a high-efficiency\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003etoroidal transformer\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e— chosen for superior regulation and minimal radiated noise. It feeds an enormous storage bank of\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e30,000µF of filter capacitance per channel\u003c\/strong\u003e, totaling\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e150,000µF across all five channels\u003c\/strong\u003e. This reserve ensures stable, unwavering voltage under any power demand — from quiet dialogue to full-range, multi-channel peaks — keeping every channel composed and in control.\u003c\/p\u003e\n\u003ch3\u003eBuilt to Last\u003c\/h3\u003e\n\u003cp\u003eThe GFA-5705 is as flawless in appearance as it is electronically. Its front panel is crafted from heavy-gauge anodized aluminum extrusion, while the chassis, top cover, and rear panel are heavy-gauge painted and baked steel. The result is a substantial, rack-ready amplifier that looks and feels like the serious piece of engineering it is.\u003c\/p\u003e\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e200W × 5 channels (8 ohms) \/ 300W × 5 channels (4 ohms)\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e— all channels driven simultaneously\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e150,000µF total filter capacitance\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e(30,000µF per channel) — massive power reserve for sustained, high-current delivery\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh-efficiency toroidal transformer\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e— exceptional regulation, minimal noise and leakage inductance\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDrives low-impedance and reactive speaker loads\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003ewith stability and control\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDamping factor \u0026gt;300\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e(20Hz–20kHz) — tight, authoritative bass across all channels\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUltra-wide power bandwidth\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e— 5Hz to 100kHz (−3dB)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIdeal for home theater\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e— purpose-built 5-channel design for surround sound systems\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDual voltage compatible\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e— 120VAC \u0026amp; 230VAC \/ 50–60Hz\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHeavy-gauge anodized aluminum \u0026amp; baked steel chassis\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e— rack-compatible, built for long-term reliability\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003ctable border=\"1\" cellpadding=\"8\" cellspacing=\"0\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003cth\u003eValue\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOutput Power – 8 Ohms\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e200W per channel × 5 (all channels driven)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOutput Power – 4 Ohms\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e300W per channel × 5 (all channels driven)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eNumber of Channels\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e5\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFrequency Response\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e10Hz – 20kHz, +0 \/ −0.25dB (1W into 8 ohms)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePower Bandwidth (−3dB)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e5Hz – 100kHz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eInput Impedance\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e22,000 ohms\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eInput Sensitivity\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1.8V rms (200W into 8 ohms)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eDamping Factor\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u0026gt;300 (20Hz – 20kHz)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePower Supply Filter Capacitance\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e150,000µF total (30,000µF per channel)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePower Transformer\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eHigh-efficiency toroidal design\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePower\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e120VAC \u0026amp; 230VAC \/ 50–60Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMaximum Dimensions (H × W × D)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e10.75\" × 19\" × 19.75\" (275 × 480 × 565 mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eWeight\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e81 lbs. (37 kg)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eShipping Weight\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e90 lbs. (41 kg)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eChassis\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eHeavy-gauge anodized aluminum front panel; painted \u0026amp; baked steel chassis\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Adcom","offers":[{"title":"Default Title","offer_id":48918903161084,"sku":"GFA-5705","price":5298.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0116\/1773\/0617\/files\/AdcomGFA-585seStereoPowerAmplifier_1_ddc7e4cc-a2fd-4d80-9665-fa83147658e1.png?v=1775233735","url":"https:\/\/vinylsound.ca\/products\/adcom-gfa-5705-5-channel-amplifier","provider":"Vinyl Sound Canada Inc.","version":"1.0","type":"link"}