{"product_id":"puresound-a30r-integrated-valve-amplifier","title":"Puresound A30r integrated tube amplifier","description":"\u003cp\u003ePuresound A30R Integrated Valve Amplifier\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eThe A30R is a Class A integrated valve amplifier designed to deliver strong performance across a wide range of loudspeakers. Using a push-pull 6550 output stage, it combines power, clarity, and reliability in a straightforward, well-executed design.\u003c\/p\u003e\n\u003cp\u003eKey features:\u003c\/p\u003e\n\u003cp\u003e• integrated valve amplifier\u003cbr\u003e• Class A operation\u003cbr\u003e• 6550 (KT88-type) output valves\u003cbr\u003e• ultra-linear push-pull output stage\u003cbr\u003e• 30W per channel\u003cbr\u003e• 3 line inputs\u003cbr\u003e• ALPS “Blue Velvet” motorised volume control\u003cbr\u003e• remote control operation\u003cbr\u003e• selectable 4Ω \/ 8Ω outputs\u003cbr\u003e• triode mode switch\u003c\/p\u003e\n\u003cp\u003eDesign and performance:\u003c\/p\u003e\n\u003cp\u003eThe A30R operates fully in Class A up to its rated output, avoiding the crossover distortion associated with Class AB designs. This results in a more consistent and natural sound across all listening levels.\u003c\/p\u003e\n\u003cp\u003eThe output stage uses Electro-Harmonix 6550 valves in an ultra-linear push-pull configuration, delivering a balance of power and clarity. A switchable triode mode is also available, reducing output power but increasing linearity, which can be beneficial with more sensitive loudspeakers.\u003c\/p\u003e\n\u003cp\u003eAn auto-bias system simplifies maintenance, allowing output valves to be replaced without manual adjustment.\u003c\/p\u003e\n\u003cp\u003eMaterials and construction:\u003c\/p\u003e\n\u003cp\u003e• Electro-Harmonix 6550 output valves\u003cbr\u003e• twin valve rectifiers\u003cbr\u003e• choke-smoothed power supply\u003cbr\u003e• twin power transformers\u003cbr\u003e• SCR polypropylene capacitors\u003cbr\u003e• selected carbon film resistors\u003cbr\u003e• wide bandwidth output transformers\u003c\/p\u003e\n\u003cp\u003eThe power supply uses valve rectification and choke smoothing to reduce noise and maintain low impedance, while the output transformers are designed for extended bandwidth and strong low-frequency control.\u003c\/p\u003e\n\u003cp\u003eSound characteristics:\u003c\/p\u003e\n\u003cp\u003e• clean, stable Class A presentation\u003cbr\u003e• strong bass control and extension\u003cbr\u003e• clear and open midrange\u003cbr\u003e• consistent tonal balance at all levels\u003cbr\u003e• good scale and dynamic capability\u003c\/p\u003e\n\u003cp\u003eThe A30R is designed to offer the benefits of valve amplification without the limitations of low-powered SET designs.\u003c\/p\u003e\n\u003cp\u003eBuild and usability:\u003c\/p\u003e\n\u003cp\u003eThe amplifier includes a motorised ALPS volume control with remote operation, along with multiple inputs for system flexibility. It can also be used as a power amplifier by setting the volume to maximum.\u003c\/p\u003e\n\u003cp\u003eSpecifications:\u003c\/p\u003e\n\u003cp\u003e• power output: 30W per channel (Class A)\u003cbr\u003e• output valves: 6550 (push-pull)\u003cbr\u003e• inputs: 3 x RCA\u003cbr\u003e• speaker outputs: 4Ω \/ 8Ω\u003cbr\u003e• operation modes: ultra-linear \/ triode\u003cbr\u003e• bias: auto-bias\u003c\/p\u003e\n\u003cp\u003eBrand and design:\u003c\/p\u003e\n\u003cp\u003ePuresound is a UK-based manufacturer focused on high-performance valve amplification. The amplifier is designed by Guy Seargent, whose experience includes Audio Innovations, Voyd, Heybrook, JPW, and training in Japan with Audio Note \/ Kondo.\u003c\/p\u003e\n\u003cp\u003eNote:\u003c\/p\u003e\n\u003cp\u003eThe A30R is well suited to loudspeakers in the 86dB or more sensitivity range, offering a strong balance of power and refinement without the need for highly efficient designs.\u003cbr\u003e\u003c\/p\u003e","brand":"Puresound","offers":[{"title":"Default Title","offer_id":58297879593344,"sku":"PRS-30R-NTG-VLV","price":2439.95,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1002\/6926\/1184\/files\/rs_w_1200_h_1200_7e37e6b6-933f-48bd-87d3-5c0fa9fe748f.png?v=1781876745","url":"https:\/\/thespinningroomhifi.co.uk\/products\/puresound-a30r-integrated-valve-amplifier","provider":"The Spinning Room Hifi","version":"1.0","type":"link"}