Looking To Match A Tube Amp With A Pair Of Audio Note AN-K/Spe


I'm the original owner of a pair of K's which I've had for about 9 months. I really enjoy them and they're placed in a 30 x 12 room with a sofa bordering 10' of that 30. I listen about 10-12 feet away. Speakers toed in accordingly. Pushed by a Pass XA 30.8. Preamp is a Backert Labs Rhumba Extreme. I'm overall pretty pleased with this set up but am searching for greater punch and clarity in the midrange frequencies at lower volume levels. I'd like opinions on 2A3 or 300B SET's or EL 34 or 84 push pull as a means of addressing this. Thanks for input.  -Scott

scottya118

I have not heard a direct comparison between the two (although I’ve heard both), and either would make a fine choice.  The Oto is a terrific sounding amp that works well with any reasonably efficient speakers.  Of course it works well with the AN-K.

i would expect a lot of other tube amps would sound fine too.  I am partial to 6L6 or KT 66 amps.  I particularly like the Synthesis A40 (60 wpc KT 66 amp), which comes with a good built in DAC and remote control (a big plus to me).

several years ago I built an Audio Note L1 EL84 pp kit amp for a friend and was most impressed with the outcome. They now have a V2 listed with Mundorf silver/gold coupling caps for $1,100. This is a steal.

I can honestly say that this would likely demolish anything you are going to find at anything near the price point for driving the K’s (I own a pair of Snell K’s on which the AN’s were based). There is a level 4 version for $2,650, $2850-$3,100 with phono. But the base model sounds simply wonderful and will rock da house if need be. Into K’s it’s not second rate wrt SET’s (I build them) and gives very good account at low vols. It’s swings and roundabouts really.

If you can find a friend who is handy with a soldering iron I would say this is definitely the way to go for the lower price range. If you have a larger budget, then obviously I would advise you to broaden your search, but still not discount the L1.

Thanks Pesky. I've soldered before and installed a new audio system in the wife's '91 Miata two summers ago. So something to definitely consider.  -Scott

Haven’t heard the Mahi’s so I can’t comment on them. The OTO is an integrated vs the Manley so you’d need a preamp. Music Reference makes a fine EL84 amp as well.  Audio Note kits is another great option.  I’ve heard the OTO AN K’s many times, wattage is not an issue.  My OTO SE drove my E’s with no issues.  

I don't think you would go wrong with the choice of an OTO.  As to changing coupling caps, this is a matter of personal taste, so be prepared to switch back if the new caps are not to your taste.  My local Audio Note dealer, who also builds his own tube amps and linestages, HATES anything Mundorf.  I have not done any serious comparisons myself, but he has, and does not like them in either amps or speaker crossovers.  He also hates Duelunds.  This is a matter of taste and system tuning, so don't expect any particular change to necessarily be an upgrade, regardless of price and reputation.

Certainly upgraded Audio Note parts should be considered because their gear is voice for these components.  This same dealer has Audio Note parts lying around that are probably worth a small fortune.  Many years ago, I asked about some caps on a shelf and was informed that they were silver foil Audio Note caps that cost north of $1,000 each.