{"id":506197,"date":"2026-09-21T12:16:17","date_gmt":"2026-09-21T10:16:17","guid":{"rendered":"https:\/\/freakuence.nl\/product\/unison-research-preludio-2\/"},"modified":"2026-09-21T12:16:17","modified_gmt":"2026-09-21T10:16:17","slug":"unison-research-preludio-2","status":"publish","type":"product","link":"https:\/\/dev.freakuence.nl\/en\/product\/unison-research-preludio-2\/","title":{"rendered":"Unison Research Preludio"},"content":{"rendered":"
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Description of Freakuence!<\/strong><\/span><\/div>\n
The Preludio dances gracefully between sweet and heavy, with a midrange that envelops you as if you were strolling along the Italian coast, full of emotion and nuance. Tight percussion gets you moving, high frequencies flirt with lightness, and low frequencies are understated yet solid. A beautiful piece of equipment\u2014it really turns things into a party.<\/span><\/div>\n
General description<\/strong><\/span><\/div>\n
The Unison Research Preludio is an integrated tube amplifier known for its reliable performance and high-quality finish. The design combines classic aesthetics with solid construction, resulting in a unit that is both visually appealing and functional. <\/p>\n

With 14 watts per channel in Class A configuration, the Preludio delivers a warm and detailed sound. The amplifier is equipped with four line inputs and a tape\/monitor input, providing ample connectivity options for a variety of audio sources. <\/p>\n

The Preludio uses high-quality components and carefully selected tubes, which contribute to the device’s reliability and durability. The combination of technical precision and attention to detail makes this amplifier ideal for audiophiles seeking an authentic listening experience.<\/span><\/div>\n

Unison Research Preludio Specifications<\/strong><\/span><\/div>\n
Type: Stereo integrated tube amplifier Output stage: Single-ended ultralinear Class A Output power: 14W per channel Inputs: 4 line, 1 tape\/monitor Outputs: 1 tape, 1 subwoofer, RCA stereo Input impedance: 47 kOhm Output impedance: 6 ohms Feedback factor: 10 dB Frequency response (-1 dB): 20 Hz \u2013 35 kHz Tubes: 2 x 6550, 2 x ECC82 Power consumption: 200 W max Dimensions: 37.5 cm x 40 cm x H 18 cm Weight: 18 kg<\/span><\/div>\n
Background Information<\/strong><\/span><\/div>\n
The Unison Research Preludio is a hand-built integrated tube amplifier from Italy, designed by Giovanni Sacchetti. It uses EL34 tubes in a single-ended configuration for a warm, natural sound. The chassis is made of solid wood and brushed metal, combining aesthetics and acoustics. Internal wiring is done using meticulous point-to-point soldering to minimize signal distortion. Production and quality control take place entirely in Italy.<\/span><\/div>\n
Brand History<\/strong><\/span><\/div>\n
Unison Research was founded in 1987 in Treviso, Italy, by founder Giovanni Maria Sacchetti. Sacchetti studied electrical engineering and classical piano. His technical and musical background formed the basis for his design philosophy. The first production unit was located in a small workshop in the Veneto region. In 1990 the first product was introduced: the Triode 20, followed by models such as Simply Two and Triode 25. A characteristic feature was the use of tube technology, especially EL34 and KT88 tubes. Starting in 1993, Unison Research also developed hybrid systems combining tubes with transistors. All products are completely designed and hand-assembled in Italy. In 2008, the company introduced the Unico series, featuring both integrated amplifiers and separate components. Production takes place in its own workshop in Italy, using only European-made components such as transformers and wooden enclosures.<\/span><\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"

Description of Freakuence! The Preludio dances gracefully between sweet and heavy, with a midrange that envelops you as if you were strolling along the Italian coast, full of emotion and nuance. Tight percussion gets you moving, high frequencies flirt with lightness, and low frequencies are understated yet solid. A beautiful piece of equipment\u2014it really turns […]<\/p>\n","protected":false},"featured_media":0,"template":"","meta":{"_acf_changed":false,"inline_featured_image":false},"product_brand":[],"product_cat":[984,1010,995],"product_tag":[487],"class_list":["post-506197","product","type-product","status-publish","product_cat-amplifiers","product_cat-stereo-amplifiers","product_cat-tube-stereo-amplifiers","product_tag-used-en","pa_kleur-brown","pa_merken-unison-research","first","instock","sold-individually","purchasable","product-type-simple"],"acf":[],"yoast_head":"\nUnison Research Preludio | Freakuence!<\/title>\n<meta name=\"description\" content=\"Unison Amplifier\u2713 New & Used Hi-Fi \u2713 Customer Rating: 4.9 out of 5 \u2713 Trade-In \u2713 Listening Session\" \/>\n<meta name=\"robots\" content=\"noindex, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" 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