{"product_id":"audio-research-vs55-tube-power-amplifier","title":"Audio Research VS55 Tube Power Amplifier","description":"The Audio Research VS55 power amplifier delivers 50 watts per channel into 4 or 8 ohms via a pure vacuum tube design. Serving as an expressive foundation for premium two-channel systems, this component departs from conventional enclosed casework by utilizing an open architecture where the valves emerge from an anodized top plate. The audio circuit pairs two matched sets of 6550EH output tubes with three 6N1P triodes, supported by a power supply packing 166 joules of energy storage. Top-surface bias test points simplify routine tube care, while dedicated four- and eight-ohm output taps maintain optimal matching across diverse loudspeakers.\n\nCritical reception widely celebrated the amplifier, with The Absolute Sound honoring it with an Editors' Choice Award for its high-end pedigree and reference-grade circuitry. Outlets like SoundStage praised its punchy bass control, dynamic impact, and transparent high frequencies that unearth abundant air. Reviewer Ken Kessler celebrated the unit as a future classic, highlighting its sweet treble, open presentation, and refreshing freedom from clinical solid-state harshness.\n\nBringing this amplifier into your setup enriches playback with organic warmth, lifelike dimension, and authentic harmonic realism. Its meticulously engineered tube topology allows instruments to breathe naturally while preserving delicate spatial cues and low-level detail. It provides a deeply engaging listening experience that draws you closer to the heart of every recording.","brand":"Audio Research","offers":[{"title":"Default Title","offer_id":67874833629465,"sku":"101482","price":1579.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0844\/4225\/1545\/files\/101482-6.jpg?v=1792623329","url":"https:\/\/tmraudio.com\/products\/audio-research-vs55-tube-power-amplifier","provider":"The Music Room","version":"1.0","type":"link"}