{"product_id":"adcom-gfa-585se-stereo-power-amplifier","title":"Adcom GFA-585se Stereo Power Amplifier","description":"\u003cdiv class=\"elementor-element elementor-element-6dafbff9 elementor-widget elementor-widget-woocommerce-product-title elementor-page-title elementor-widget-heading\" data-id=\"6dafbff9\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"woocommerce-product-title.default\"\u003e\n\u003cdiv class=\"elementor-widget-container\"\u003e\n\u003ch2\u003eAdcom GFA-585se Stereo Power Amplifier\u003c\/h2\u003e\n\u003cp\u003e\u003cem\u003eEnormous power. Impeccable quality. Extraordinary value.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003eThe\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eAdcom GFA-585se\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eis a high-performance stereo power amplifier built to deliver authority, precision, and musical transparency in equal measure. A pure\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eClass A\/B design\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003ewith parallel-driven topology, it delivers\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e450 watts per channel into 8 ohms\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e— and the ability to drive speaker loads all the way down to 2 ohms with complete stability and composure.\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/adcom.com\/wp-content\/uploads\/gfa-585se-slide1.jpg\"\u003e\u003c\/p\u003e\n\u003cp\u003eEvery component inside the GFA-585se was put under the microscope during development — refined and upgraded to create a more capable, more revealing version of an already respected amplifier. The result is lower distortion, better dynamic range, improved damping factor, and greater stability and separation of individual instruments across the soundstage. Ultra-low ESR electrolytic capacitors and UL-approved FR-4 printed circuit boards reflect the same uncompromising approach applied throughout.\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/adcom.com\/wp-content\/uploads\/gfa-585se-slide2.jpg\"\u003e\u003c\/p\u003e\n\u003cp\u003eAt the core of the GFA-585se's power delivery are\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e14 pairs of TO-3-type metal-cased bipolar output transistors per channel\u003c\/strong\u003e, arranged in a triple-Darlington configuration. This topology ensures very efficient power delivery to reactive loads — regardless of the phase angle between voltage and current — making the GFA-585se one of the most speaker-friendly high-power amplifiers available at any price.\u003c\/p\u003e\n\u003cp\u003eSonically, the 585se strikes a compelling balance between impact and finesse. Bass is deep and controlled, the midrange is open and expressive, and the highs extend smoothly with natural detail. The result is a presentation that feels powerful yet refined, with a wide, stable soundstage that holds together at any volume level.\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/adcom.com\/wp-content\/uploads\/gfa-585se-slide4.jpg\"\u003e\u003c\/p\u003e\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e450W per channel (8 ohms) \/ 600W per channel (4 ohms)\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e— massive, headroom-rich power output\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBridgeable to 1000W mono (8 ohms)\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e— maximum output for single-channel or subwoofer applications\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDrives loads down to 2 ohms\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e— unconditional stability with any loudspeaker\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e50+ amps peak output current\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e— for instantaneous transient demands on complex, reactive loads\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePure Class A\/B, parallel-driven topology\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e— high efficiency with audiophile-grade linearity\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e14 pairs of TO-3 bipolar output transistors per channel\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e— triple-Darlington configuration for robust, clean power\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBalanced (XLR) \u0026amp; unbalanced (RCA) inputs\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e— compatible with professional and consumer preamplifiers\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUltra-low ESR electrolytic capacitors\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e— reduced distortion, improved dynamic range\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e12V trigger output\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e— for integrated system automation\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLimit protection \u0026amp; thermal protection circuits\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e— with front-panel LED indicators for safe operation\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eETL\/ETLc, FCC, LVD and CE\/EMC certified\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e— meets international safety and compliance standards\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHeavy-gauge anodized aluminum front panel; painted \u0026amp; baked steel chassis\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e— built for decades of reliable service\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 (Stereo)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e450W per channel (both channels driven, \u0026lt;0.05% THD, 20Hz–20kHz)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOutput Power – 4 Ohms (Stereo)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e600W per channel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBridged Mono Power – 8 Ohms\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1000W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePeak Output Current\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e50+ amperes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMinimum Speaker Impedance\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e2 ohms (stereo); 4 ohms recommended (bridged)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eTHD (Total Harmonic Distortion)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u0026lt;0.05% (full power, both channels driven)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eAmplifier Class\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003ePure Class A\/B, parallel-driven\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOutput Transistors\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e14 pairs TO-3 bipolar (per channel), triple-Darlington configuration\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 Connectors\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eBalanced XLR; Unbalanced RCA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eTrigger\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e12V \/ 100mA output (3.5mm jack)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePolarity\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eNon-inverting (polarity correct)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePCB Standard\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eUL-approved FR-4\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCertifications\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eETL\/ETLc, FCC, LVD, CE\/EMC\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\u003e10¾' × 17' × 19¾' (273 × 432 × 502 mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eWeight\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e~70 lbs. (32 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\u003e87 lbs.\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\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eProtection\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eOutput relay (short circuit \/ DC), thermal protection — both with front-panel LED indicators\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e* For complete technical documentation, please refer to the official Adcom GFA-585se user manual included with the unit or available upon request.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Adcom","offers":[{"title":"Default Title","offer_id":48918901293308,"sku":"GFA-585se","price":5205.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0116\/1773\/0617\/files\/AdcomGFA-585seStereoPowerAmplifier_1.png?v=1775233733","url":"https:\/\/vinylsound.ca\/products\/adcom-gfa-585se-stereo-power-amplifier","provider":"Vinyl Sound Canada Inc.","version":"1.0","type":"link"}