New Audio Frontiers 845SE with Psvane Acme Tubes, and Diesis Audio Aura Speakers sounds amazing
i love my New Audio Frontiers 845 SE. Use(d) them in Reference 3A De Capo BE, Horns FP10, Zu Druid VI and with TAD CR1 biamped
Huge soundstage, engaging, resolving and mids to die for
Best Tubes i do have are Psvane 845 ACME followed by Psvane 845-T-MII/2 and Shuguang 845B
But be carefully, with NAF 845 you can´t use any 845, e.g. 845M otherwise autobias will cause damage
Good luck w them...my time w the Black Shadows was a lot of fun.I'm close to wetting myself with excitement. I bought Phils Audion Black Shadow 845 amps. A couple weeks later they were sent out to be repaired. That was months ago. They have been totally rebuit. Everything upgraded to current levels. And maybe a little secret sauce. Anyhow, Fedex is scheluled to deliver today.
Being that this is the only pair of SET amps I have owned, I won't be able to add much as a comparison to others SET. I have had VAC, CJ, Rogue and Ampsandsound PP KT style amps in my posession for years. And an Altec 811 PP. The 845 immediate jumped out as different. They paired well with my PAP Trio 15 horn speakers. Enough so I decided to spend more rebuilding them than the cost to purchase them. And I really didn't want to spend the money purchasing them in the first place. In short, they sounded dam good. Good enough I more than doubled my max spending limit.
I am now thinking tubes. Phil gave me a pile of Shuguang tubes and one set of Psvane hifi tubes. All budget tubes that work. What they really tell you is the power tube has a significant impact on the sound from this amp. I was told by the USA distributor the Elrog sound best in this amp. $2,000. Ouch. But even the Psvane ACME is $1400??? I think. It's up there.
More to come when they arrive.
With ANY 845 based tube amplifier you better use freight shipping as the UPS & Fedex more often than not damage these heavy beasts in transit. I learned that the hard way, when the Fedex damaged my MAstersound Evolution Reference amp (120 pounds, very heavy on the transformers side, no wonder the average Fedex delivery guy/gal would drop box this heavy from their truck on the pavemant when unloading )... Luckily the USA TUBe store in Arizona quickly took care of the issue and sent a replacement unit, this time with the Old Dominion Freight , strapped to a pallet...$500 for freight was pricey, but so worth it!Shipping damage. One not working. They are back in the mail. I'm pretty bummed. Sometimes I think I should have bought the Found Music Blade amps. Or the Ayon Crossfire. But I am at where I'm at, and working through the mess.
I nominate the MastersounD PF-100 Litz (four 845 PSET) (but I have never heard it myself).
I had the Cary 805C which has 845 output tubes. Didn't really care for the sound. Slow and slightly muffled. I also not sure how they managed to claim 50w out of a pair of 845 tube.
Now I own a pair of Line Magnetic 518IA. So much better, clarity and microdynamic is much better.
The only 845 based amps I've owned are the Art Audio Carissa, a very nice UK-built stereo amp, and the Conconance Cyber 845 monos from China. I had on home demo a pair of Union Research 845 monos, wonderful looking monster s but a bit noisy.
Hi how did the Consonance Cyber 845 monos sound on your horns - thanks
They have been surprisingly good (Chinese built and sensibly priced) in my London home, but they didn't like the move to Portsmouth for some reason. They are a bit noisy, but I put this down to the closeness of router, TV and other electronics. I've rather moved away from tube amps, but I still have the Cyber 845s and will try again soon.
I could use them for the mid and top only and set my Avantgardes to take the preamp line output for bass. This way, noise should be minimised and I could switch from SS amp to tube amp using my new amp switcher. Or I could relocate them to be far enough from other equipment that (hopefully) they'll operate quietly.
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