{"product_id":"adcom-gfa-555se-stereo-power-amplifier","title":"Adcom GFA-555se Stereo Power Amplifier","description":"\u003cdiv data-widget_type=\"heading.default\" data-e-type=\"widget\" data-element_type=\"widget\" data-id=\"35df84f0\" class=\"elementor-element elementor-element-35df84f0 elementor-widget elementor-widget-heading\"\u003e\n\u003cdiv class=\"elementor-widget-container\"\u003e\n\u003ch1 class=\"elementor-heading-title elementor-size-default\"\u003eADCOM GFA-555se Power Amplifier\u003c\/h1\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv data-widget_type=\"heading.default\" data-e-type=\"widget\" data-element_type=\"widget\" data-id=\"270ba44c\" class=\"elementor-element elementor-element-270ba44c elementor-widget elementor-widget-heading\"\u003e\n\u003cdiv class=\"elementor-widget-container\"\u003e\u003cspan class=\"elementor-heading-title elementor-size-medium\"\u003eThe classic award winning amplifier design of the original GFA-555mkII has been reborn. The Adcom GFA-555 represents the most advanced thinking in audio amplifier design. It offers exceptional value and superior performance at a reasonable price. Being innovative is what keeps us going strong and achieving great things. Whether it's our iconic high current amplifiers or our cutting-edge digital processors, ADCOM components never fail to impress even the toughest crowds. As we keep pushing for better quality and performance, our components have scooped up more than 25 Product of the Year and Special Recognition awards from Audio Video International. On top of that, we've snagged 3 Diapason D’Or Awards, 7 Consumer Electronics Show Design and Engineering Awards, and we've been featured on Stereophile’s “Recommended Components” list 70+ times since 1988!\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv class=\"elementor-widget-container\"\u003e\u003cspan class=\"elementor-heading-title elementor-size-medium\"\u003e\u003cimg src=\"https:\/\/adcom.com\/wp-content\/uploads\/gfa-555se-slide7.jpg\"\u003e\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv class=\"elementor-widget-container\"\u003e\n\u003cdiv data-widget_type=\"heading.default\" data-e-type=\"widget\" data-element_type=\"widget\" data-id=\"45b639a2\" class=\"elementor-element elementor-element-45b639a2 elementor-widget elementor-widget-heading\"\u003e\n\u003cdiv class=\"elementor-widget-container\"\u003e\n\u003ch2 class=\"elementor-heading-title elementor-size-xl\"\u003eLegacy\u003c\/h2\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv data-widget_type=\"text-editor.default\" data-e-type=\"widget\" data-element_type=\"widget\" data-id=\"171b0080\" class=\"elementor-element elementor-element-171b0080 elementor-widget elementor-widget-text-editor\"\u003e\n\u003cdiv class=\"elementor-widget-container\"\u003e\n\u003cp\u003eGFA-555se power amplifier represents the pinnacle of ADCOM’s audio engineering. This Nelson Pass design broke ground when it came out in the 80’s, getting rave reviews and providing tank-like reliability at a decent price. That these audio power amplifiers are still much in demand after so much time is a strong testament to their value and durability.\u003c\/p\u003e\n\u003cdiv data-widget_type=\"heading.default\" data-e-type=\"widget\" data-element_type=\"widget\" data-id=\"4bdd3f77\" class=\"elementor-element elementor-element-4bdd3f77 elementor-widget elementor-widget-heading\"\u003e\n\u003cdiv class=\"elementor-widget-container\"\u003e\n\u003ch2 class=\"elementor-heading-title elementor-size-xl\"\u003e\u003cimg src=\"https:\/\/adcom.com\/wp-content\/uploads\/gfa-555se-slide8.jpg\"\u003e\u003c\/h2\u003e\n\u003ch2 class=\"elementor-heading-title elementor-size-xl\"\u003eBetter Sound Delivery\u003c\/h2\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv data-widget_type=\"text-editor.default\" data-e-type=\"widget\" data-element_type=\"widget\" data-id=\"43bf868f\" class=\"elementor-element elementor-element-43bf868f elementor-widget elementor-widget-text-editor\"\u003e\n\u003cdiv class=\"elementor-widget-container\"\u003eWe have worked long and hard to ensure that the GFA-555se power amplifier improves upon its original eminent version in key areas, delivering even better performance. Externally, the chassis footprint and front panel design are identical to the original. Internally, all circuitry has been upgraded to meet ETL\/ETLc, FCC, LVD and CE\/EMC requirements using UL approved FR-4 printed circuit boards. High performance component selections include ultra low ESR electrolytic capacitors. The result of these improvements is lower distortion, better dynamic range, improved damping factor and greater stability and separation of individual instruments on the sound stage.\u003c\/div\u003e\n\u003cdiv class=\"elementor-widget-container\"\u003e\n\u003ch2\u003e\u003cimg src=\"https:\/\/adcom.com\/wp-content\/uploads\/gfa-555se-slide12.jpg\"\u003e\u003c\/h2\u003e\n\u003ch2\u003eAdcom GFA-555se Stereo Power Amplifier\u003c\/h2\u003e\n\u003cp\u003e\u003cem\u003eA legend — refined for a new generation.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003eThe\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eAdcom GFA-555se\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003ecarries forward the legacy of one of the most iconic amplifiers in hi-fi history, reengineered for greater transparency, control, and musical refinement. Designed to deliver effortless power with precision, it brings a sense of scale and authority that transforms any listening experience.\u003c\/p\u003e\n\u003cp\u003eProducing\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e200 watts per channel into 8 ohms\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eand\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e300 watts into 4 ohms\u003c\/strong\u003e, the GFA-555se offers substantial headroom and the ability to drive even the most demanding speakers with confidence. Its high-current design ensures stability and control, maintaining clarity and composure across the entire frequency range.\u003c\/p\u003e\n\u003cp\u003eWhat sets the 555se apart is its balance of strength and subtlety. Bass is deep and commanding, the midrange is open and expressive, and the highs extend with a smooth, natural ease. The result is a presentation that feels both powerful and refined — capable of revealing detail without ever sounding forced.\u003c\/p\u003e\n\u003cp\u003eWith upgraded internal components, balanced XLR inputs, and a modernized circuit design, the GFA-555se builds on its heritage while elevating performance to meet contemporary high-fidelity expectations.\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/adcom.com\/wp-content\/uploads\/gfa-555se-slide1.jpg\"\u003e\u003c\/p\u003e\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e200W per channel (8 ohms) \/ 300W per channel (4 ohms)\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e— authoritative headroom for any speaker\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBridgeable to 600W mono (8 ohms)\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e— maximum power for single-channel or subwoofer applications\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDamping factor ≥900\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e(20Hz–20kHz) — exceptional speaker control and bass precision\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBalanced (XLR) and unbalanced (RCA) inputs\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e— flexible integration with any preamplifier\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUltra-wide power bandwidth\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e— 1.7Hz to 100kHz (−3dB)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDual voltage compatible\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e— 120VAC \u0026amp; 230VAC \/ 50–60Hz for worldwide use\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUpgraded internals\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e— modernized circuit design with enhanced clarity and refinement\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRobust build quality\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e— classic Adcom reliability, built to last\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003ctable cellspacing=\"0\" cellpadding=\"8\" border=\"1\" style=\"width: 100%; height: 391.875px;\"\u003e\n\u003cthead\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003cth style=\"width: 37.8096%; height: 19.5938px;\"\u003eSpecification\u003c\/th\u003e\n\u003cth style=\"width: 55.4046%; height: 19.5938px;\"\u003eValue\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr style=\"height: 39.1875px;\"\u003e\n\u003ctd style=\"width: 37.8096%; height: 39.1875px;\"\u003e\u003cstrong\u003eOutput Power – 8 Ohms (Stereo)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 55.4046%; height: 39.1875px;\"\u003e200W per channel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 39.1875px;\"\u003e\n\u003ctd style=\"width: 37.8096%; height: 39.1875px;\"\u003e\u003cstrong\u003eOutput Power – 4 Ohms (Stereo)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 55.4046%; height: 39.1875px;\"\u003e300W per channel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 37.8096%; height: 19.5938px;\"\u003e\u003cstrong\u003eBridged Mono Power – 8 Ohms\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 55.4046%; height: 19.5938px;\"\u003e600W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 37.8096%; height: 19.5938px;\"\u003e\u003cstrong\u003eFrequency Response\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 55.4046%; height: 19.5938px;\"\u003e10Hz – 20kHz, +0 \/ −0.25dB (1W into 8 ohms)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 37.8096%; height: 19.5938px;\"\u003e\u003cstrong\u003ePower Bandwidth (−3dB)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 55.4046%; height: 19.5938px;\"\u003e1.7Hz – 100kHz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 39.1875px;\"\u003e\n\u003ctd style=\"width: 37.8096%; height: 39.1875px;\"\u003e\u003cstrong\u003eInput Impedance – Unbalanced (RCA)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 55.4046%; height: 39.1875px;\"\u003e100k ohms\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 39.1875px;\"\u003e\n\u003ctd style=\"width: 37.8096%; height: 39.1875px;\"\u003e\u003cstrong\u003eInput Impedance – Balanced (XLR)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 55.4046%; height: 39.1875px;\"\u003e10k ohms\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 39.1875px;\"\u003e\n\u003ctd style=\"width: 37.8096%; height: 39.1875px;\"\u003e\u003cstrong\u003eInput Sensitivity\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 55.4046%; height: 39.1875px;\"\u003e1.75V rms (200W into 8 ohms) \/ 130mV rms (1W into 8 ohms)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 37.8096%; height: 19.5938px;\"\u003e\u003cstrong\u003eDamping Factor\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 55.4046%; height: 19.5938px;\"\u003e≥900 (20Hz – 20kHz)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 37.8096%; height: 19.5938px;\"\u003e\u003cstrong\u003ePower\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 55.4046%; height: 19.5938px;\"\u003e120VAC \u0026amp; 230VAC \/ 50–60Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 39.1875px;\"\u003e\n\u003ctd style=\"width: 37.8096%; height: 39.1875px;\"\u003e\u003cstrong\u003eMaximum Dimensions (H × W × D)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 55.4046%; height: 39.1875px;\"\u003e7½' × 12½' × 17' (191 × 318 × 432 mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 37.8096%; height: 19.5938px;\"\u003e\u003cstrong\u003eWeight\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 55.4046%; height: 19.5938px;\"\u003e36 lbs. (16.3 kg)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 37.8096%; height: 19.5938px;\"\u003e\u003cstrong\u003eShipping Weight\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 55.4046%; height: 19.5938px;\"\u003e39 lbs. (18 kg)\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\u003cdiv class=\"elementor-widget-container\"\u003e\u003cbr\u003e\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":48918898966780,"sku":"GFA-555se","price":2648.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0116\/1773\/0617\/files\/AdcomGFA-555seStereoPowerAmplifier.png?v=1775233728","url":"https:\/\/vinylsound.ca\/products\/adcom-gfa-555se-stereo-power-amplifier","provider":"Vinyl Sound Canada Inc.","version":"1.0","type":"link"}