{"id":434092,"date":"2026-05-19T16:25:32","date_gmt":"2026-05-19T14:25:32","guid":{"rendered":"https:\/\/freakuence.nl\/product\/spec-rsa-777ex\/"},"modified":"2026-05-21T13:36:45","modified_gmt":"2026-05-21T11:36:45","slug":"spec-rsa-777ex","status":"publish","type":"product","link":"https:\/\/freakuence.nl\/en\/product\/spec-rsa-777ex\/","title":{"rendered":"Spec RSA-777EX"},"content":{"rendered":"
\n
Description Freakuence!<\/strong><\/span><\/div>\n
How this is possible from Japan? Well, simple, Spec does it. Class D but warm. The RSA-777EX is an amplifier that opens the stereo image in refinement and actually gives voices a stage. <\/span><\/div>\n
Details<\/strong><\/span><\/div>\n
Damage to woodwork and switch, scratches on top. See photos. <\/span><\/div>\n
General description<\/strong><\/span><\/div>\n
The Spec RSA-777EX is an integrated amplifier that uses advanced Class D technology and an audio-class switching power supply. This combination ensures fast and accurate energy transfer to the speakers, resulting in a clear and natural soundstage. <\/p>\n

The use of Pulse Width Modulation (PWM) in the Class D amplifier keeps the audio signal completely analog, contributing to authentic and detailed reproduction. The wooden side panels, inspired by the shape of a violin, are made of maple and spruce and contribute to a warm and musical sound. <\/p>\n

Want to experience the Spec RSA-777EX for yourself? Schedule a listening session in our listening room and discover the dynamics and detail of this amplifier. <\/span><\/div>\n

Specifications Spec RSA-777EX<\/strong><\/span><\/div>\n
Maximum output power: 100 W \u00d7 2 (4\u03a9), 75 W \u00d7 2 (6\u03a9), 50 W \u00d7 2 (8\u03a9) Frequency response: 10 Hz – 30 kHz \u00b11dB (6\u03a9, 1W) Harmonic distortion factor: 0.02% (at 1 kHz, 80% output) Input sensitivity and gain: 300 mVrms, 37.3 dB (at maximum volume, 6\u03a9, 1 kHz, unbalanced input) Line input terminals: XLR input: 1, RCA inputs: 3 Speaker terminal: 1 Supply voltage: 220V AC, 50Hz Power consumption: Without signal: 18 W, at maximum output power: 180 W (8\u03a9, 100 Hz) Dimensions: 350 mm (width) \u00d7 95 mm (height) \u00d7 375 mm (depth) Weight: 7.0 kg<\/span><\/div>\n
Background information<\/strong><\/span><\/div>\n
The Spec RSA-777EX product from renowned hi-fi manufacturer SPEC Corporation is known for its high-quality design and materials. The team of engineers, led by chief designer Shirokazu Yazaki, has focused on creating a natural and warm sound reproduction. The amplifier uses carefully selected materials, such as high-quality capacitors and internal wiring made of pure copper, to ensure optimal signal transmission. The cabinet is made of low-resonance wood, which helps minimize unwanted vibrations. Spec sources its components from trusted suppliers from Japan, known for their quality and reliability. <\/span><\/div>\n
Brand history<\/strong><\/span><\/div>\n
The Spec brand was founded in 2010 in Japan, focused on developing audio equipment. Its founder, Shirokazu Yazaki, has a background in electrical engineering and has previously worked at several companies where he was responsible for research and development projects. Spec is headquartered in Yokohama, Japan. Since its founding, the brand has emphasized developing high-quality products that combine certain aspects of traditional technologies with modern innovations. The company focuses on carefully selected materials and components. Each product is subjected to rigorous quality controls to ensure that it meets established standards. This approach has enabled Spec to attract international attention among connoisseurs and enthusiasts. Despite disciplined offerings, the brand has managed to establish a stable place within its segment and remains true to its original vision. <\/span><\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"

Description Freakuence! How this is possible from Japan? Well, simple, Spec does it. Class D but warm. The RSA-777EX is an amplifier that opens the stereo image in refinement and actually gives voices a stage. Details Damage to woodwork and switch, scratches on top. See photos. General description The Spec RSA-777EX is an integrated amplifier […]<\/p>\n","protected":false},"featured_media":442104,"template":"","meta":{"_acf_changed":false,"inline_featured_image":false},"product_brand":[],"product_cat":[984,1058,1010],"product_tag":[487],"class_list":{"0":"post-434092","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-amplifiers","7":"product_cat-class-d-stereo-amplifiers","8":"product_cat-stereo-amplifiers","9":"product_tag-used-en","10":"pa_kleur-silver","12":"first","13":"instock","14":"sold-individually","15":"purchasable","16":"product-type-simple"},"acf":[],"yoast_head":"\nSpec RSA-777EX | Freakuence!<\/title>\n<meta name=\"description\" content=\"Spec RSA-777EX integrated amplifier delivers clear, natural and musical sound. \u2713 New & Used HiFi \u2713 Customer rating: 4.9 out of 5 \u2713 Trade-in \u2713 Listening session\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, 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