Hifi News

New Audio Frontiers Integrated Amplifier: 845 SE Special Edition

I just admit that I have a weakness for the 845 valve. I currently utilise a pair of Icon Audio MB845 Mk.II monoblocks as part of my reference system. When I saw this design, I had to investigate. OK, this one might not be the newest piece of technology on the block but it remains a little seen and utilised design from the a company that I don’t really see ‘out there’ too much. So…you could call this a sort of Post it note, to make you aware…as it where. For many of you, this will be news

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From this company, based in Viadana, Italy, this integrated amplifier runs pure Class A mode and spouts 25W, delivered by an 845 driven by an ultralinear SRPP.

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The output transformers are hand wound using silver-plated copper litz wire. That’s doubled-wired to, says the company, “… avoid parasitic oscillation and loss to the core.”

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Reportedly, the output valve bias is automatic and doesn’t need any regulation.

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Meanwhile, the rectifier for the anodic power supply is made up by two 5R4GY directly heated rectifier valves.

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Spanning 350 x 250 x 560mm, it weighs in at 50kg. Price? Around €9,800.

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To lean more, click www.newaudiofrontiers.com or call +39 333 27 18 393

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2 Comments

  • Reply
    Cary Maultasch
    28th December 2016 at 6:29 pm

    I have also been a long time fan of the 845 tube, but thew current production Chinese made tubes leave a lot to be desired. There are a pair of United Electronic 845 W NIB NOS offered on eBay for $6,000. They are the best 845, which I have ever heard. The 5R4GY’s shown have only one getter. The best 5R4GY’s, which I have heard are the
    RCA CRC 5R4GY with twin “D” getters at 45 degree angles to each other. They are very rare because they were only made for a portion of 1944 and 1945. They sound as good as or better than the WE 274B. I have a few pairs left in inventory, but I sold most to Brent Jessee, who is offering them for sale at $200 each. The single getters go for $12 to $15 per tube, but the difference is huge.

    • Reply
      Paul Rigby
      28th December 2016 at 6:36 pm

      Very informative, Cary. Any thanks for your post and for teaching me a thing or two!

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