{"id":2111,"date":"2023-10-17T19:59:06","date_gmt":"2023-10-17T22:59:06","guid":{"rendered":"https:\/\/hificlub.com.br\/loja2\/produto\/audio-research-reference-75-75-watts\/"},"modified":"2025-12-01T10:51:56","modified_gmt":"2025-12-01T13:51:56","slug":"audio-research-reference-75-75-watts","status":"publish","type":"product","link":"https:\/\/hificlub.com.br\/loja\/produto\/audio-research-reference-75-75-watts\/","title":{"rendered":"AUDIO RESEARCH REFERENCE 75  75 watts"},"content":{"rendered":"<p>Estado de conserva\u00e7\u00e3o: 9\/10<\/p>\n<p>SPECIFICATIONS Power Output: 75 watts per channel continuous from20Hz to 20kHz. 1kHz total harmonic distortion typically 0.6% at 75 watts, below 0.05% at 1 watt. Approximate actual power available at \u2018clipping\u2019 76 watts (1kHz). (Note that actual power output is dependent upon both line voltage and \u2018condition\u2019 i. e.: if power line has high distortion, maximum power will be affected adversely, although from a listening standpoint this is not very critical.) Power Bandwidth: (-3dB points) 7Hz to 60kHz. Frequency Response: (-3dB points at 1 watt) 0.7Hz to 75 kHz. Input Sensitivity: 1.4V RMS BAL for rated output. (25 dB Bal gain into 8 ohms.) Input Impedance: 300K ohms Balanced. Output Polarity: Non-inverting. Balanced input pin 2+ (IEC-268). Output Taps: 8 ohms, 4 ohms. Output Regulation: Approximately 1.0dB 8 ohm load to open circuit (Damping factor approximately 8). Overall Negative Feedback: 15dB. Slew Rate: 10 volts\/microsecond. Rise Time: 4.0 microseconds. Hum &amp; Noise: Less than 0.06mV RMS \u2013 112dB below rated output (IHF weighted, input shorted). Power Supply Energy Storage: Approximately 520 joules. Power Requirements: 105-125VAC 60Hz (210-250VAC 50Hz) 410 watts at rated output, 500 watts maximum, 230 watts idle. Tube Complement: 2 \u2013 Matched pair KT120 \u2013 Power Output; 2 \u2013 6H30 Driver. Dimensions: Width 19&#8243; (48.3 cm) Height 8.75&#8243; (22.2 cm) Depth 19.5&#8243; (49.5 cm) Handles extend 1.5&#8243; (3.8 cm) forward. Weight: 47 lbs. (21.3 kg) Net; 63 lbs. (28.6 kg) Shipping.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Estado de conserva\u00e7\u00e3o: 9\/10 SPECIFICATIONS Power Output: 75 watts per channel continuous from20Hz to 20kHz. 1kHz total harmonic distortion typically 0.6% at 75 watts, below 0.05% at 1 watt. Approximate actual power available at \u2018clipping\u2019 76 watts (1kHz). (Note that actual power output is dependent upon both line voltage and \u2018condition\u2019 i. e.: if power [&hellip;]<\/p>\n","protected":false},"featured_media":2104,"template":"","meta":{"_acf_changed":false},"product_brand":[],"product_cat":[27,29,28],"product_tag":[],"class_list":{"0":"post-2111","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-amplificador","7":"product_cat-audio-research","8":"product_cat-estereo","10":"first","11":"instock","12":"sold-individually","13":"shipping-taxable","14":"purchasable","15":"product-type-simple"},"acf":[],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/hificlub.com.br\/loja\/wp-json\/wp\/v2\/product\/2111","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/hificlub.com.br\/loja\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/hificlub.com.br\/loja\/wp-json\/wp\/v2\/types\/product"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/hificlub.com.br\/loja\/wp-json\/wp\/v2\/media\/2104"}],"wp:attachment":[{"href":"https:\/\/hificlub.com.br\/loja\/wp-json\/wp\/v2\/media?parent=2111"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/hificlub.com.br\/loja\/wp-json\/wp\/v2\/product_brand?post=2111"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/hificlub.com.br\/loja\/wp-json\/wp\/v2\/product_cat?post=2111"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/hificlub.com.br\/loja\/wp-json\/wp\/v2\/product_tag?post=2111"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}