Pursuing the Ultimate Music Experiences

Audio Federation High-Fidelity Audio Blog

Audio Note M10 Line Signature preamplifier

Neli had the opportunity recently to help unpack and setup Audio Note’s new Level Six linestage preamplifier, the M10 Line Signature, at Fred’s place in Houston. Fred will be reviewing it over the coming months. He’s started a thread over on Myles Astor’s site, AudioNirvana.org, with M10 Line Signature discussion and comments.

She took some pictures and told some stories 🙂 some of which I can tell you here…

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Acapella Triolon loudspeakers, Audio Note Kegon Balanced amplifiers, EMM Labs’ DA2 DAC and TX2 transport, Finite Elemente racks, and, of course, the 3 box (control plus a power supply for each channel) Audio Note M10 Line Signature. Fred’s analog rig is an updated Rockport Sirius 2 with Ortofon A90, and an Ypsilon stepup transformer and phonostage.

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I’m from the “How hard can it be” tribe, but , hey, there is a manual, just in case 😉

 

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The front of the Audio Note M10 Line Signature preamplifier

OK. Just like every other time we have had the pleasure… But brand new, cold, just hooked up for the first time – Audio Note rocks. Yeah, it sounds better warmed up of course, but really, it is always such a shocker to hear it sound truly excellent right out of the box, unlike just about everything else we have ever heard.

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The rear of the Audio Note M10 Line Signature preamplifier. Support for bi-amping is apparent. The green military-grade connectors on the left there are for the connections to the two power supplies.

 

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The front of one of the Audio Note M10 Line Signature preamplifier’s ‘Galahad Signature’ power supplies.

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The rear of one of the Audio Note M10 Line Signature preamplifier’s ‘Galahad Signature’ power supplies. The separate right and left channel power supplies connect to the main linestage control unit with Audio Note’s provided silver umbilical cables.

 

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Convenient double high rack for the power supplies.

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The front of the Audio Note M10 Line Signature preamplifier powered up. This is the main control unit, with separate right and left volume controls, and the selector switch.

 

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The front of the Audio Note M10 Line Signature preamplifier powered up. This piece provides two transformer-coupled balanced inputs and four single ended inputs.

 

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The original system with the EMM Labs MTRX amplifiers [with gold faceplate] which Neli reports went very well with the Audio Note M10 Line Signature as well.

Sweet Vinyl SugarCube

Sweet Vinyl SugarCube in on IndieGoGo

I thought this was interesting because it is relatively successful on Indigogo even though we, personally, like to hear everything on an LP, including the occasional pop and click. The track splitting though, could be really useful…

“Silicon Valley based SweetVinyl™ introduces the SugarCube™ line of vinyl noise removal and recording/playback components. The SugarCube SC-1 and SC-2 are the first audiophile-grade products to enable non-destructive click & pop removal on any vinyl LP record in real-time. The SC-2 also records digitally – providing automatic LP metadata identification and tagging, track splitting and recording to connected USB storage.”

 

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Our Cellini are here…

Acapella Cellini loudspeakers in a modern gray and white fit very nicely into this mid-century modern home.

Thin deformable walls and make for some bass suck-out, and hard-surfaces everywhere make for an elevated midrange – so we have work to do.

Neli has some family-heirloom carpets that go well here – but they are too small! So what do we do? Get a new carpet that better fits the room? Use two smaller ones, albeit ones that have different patterns from each other? Is the aesthetics of the room really that important? Does it contribute to the enjoyment of the music or it’s only job to stop the sound from bouncing around the room indefinitely?

You know, moving requires us to make So Many Decisions. We are kind of burnt out.

Anyway, lots of tuning to do.

 

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OK. I guess it had to come out sometime. There is indeed a mirror that surrounds the gas fireplace. Not our idea. Seriously.

Have to say that you DO get used to it. But we will probably put some plants there, or paste up old album covers over it, or give people Halloween masks to wear [I will be Terminator and Neli? Trying to convince her to go for the Princess Leia, but…]

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We’ll be open soon… !

LAMM L2.1 Reference preamplifier available in mid-October’2016

[Wow. An upgrade of the venerable L2 preamp (been with us for… 15 years? A long time anyway). The press release follows.]

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[This is a photo of the previous model, the 2-box L2 Reference]

 

We are happy to announce that a modified version of our long-running L2 Reference preamp — the L2.1 Reference – will be commercially available in October’2016.

 

The L2.1 Reference employs a pure class A operation from input to output, with no overall feedback at any stage; all stages, including high current output buffers, are single-ended. Also featured are specially selected high voltage super linear MOS-FETs in the signal path and TKD stepped potentiometers for volume control – the best available on today’s market.

 

The preamplifier’s audibly neutral power supply features a choke contained filter, a full-wave vacuum tube rectifier and vacuum tube voltage regulator which allow to virtually eliminate the hum and buzz and, ultimately, to ensure the authenticity of the essence of sound throughout the entire dynamic range without any coloration.  Other features include 3 inputs; one tape/home theater processor loop; output signal phase switch; balanced and single-ended outputs; protection circuitry designed to enable manual muting of the output signal; and built-in remote on/off for Lamm power amplifiers.

 

The main distinction of the L2.1 Reference from any other comparable type of preamplifiers is its almost inaudible sonic signature.  When connected to an appropriate type of power amplifiers, especially LAMM power amplifiers, it assures the extraordinary transparency of perceived sound and recreation of a three-dimensional soundstage in the home, recording studio, etc. without boundaries and limitations.

 

  In a nutshell, the L2.1 Reference includes the following upgrades and modifications as compared to the L2 Reference:

  • increased immunity to unwanted radio frequency interferences propagated via both radiation and conduction over signal lines & AC power systems
  • certain modifications in protection and time delay circuitries
  • improved signal/noise ratio
  • replacement of a number of critical components with newly available types of better quality [in particular, replacement of electrolytic capacitors in the tube voltage regulation section with newly developed high density polypropylene capacitors of comparable size and value(!)]
  • utilization of a technologically new type of pc-boards of superior quality, with gold-plated traces and thru-holes.

 

Each preamplifier is carefully crafted with the finest materials and top quality parts like military-grade DALE/VISHAY metal-film resistors, RCD wire-wound resistors, TKD 41-step volume control potentiometers of the highest quality available on today’s market, BOURNS multi-turn potentiometers, VISHAY electrolytic capacitors, ELECTROCUBE, EPCOS and RIFA/KEMET film capacitors; HAMMOND chokes, god-plated NEUTRIC connectors, and military-grade low-noise long-life vacuum tubes.

 

The L2.1 Reference features a custom-designed super-low noise power transformer.

 

The U.S. retail is $22,790.

Long Article on Acapella Audio Arts

There is a new long article on Acapella Audio Arts by a European correspondent for Positive Feedback.

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http://positive-feedback.com/audio-discourse/feuilleton-acapella-audio-arts/

The article includes many yummy photos of the factory and the factory showroom – as well as other fun and mysterious factoids about the speakers and their other gear.

I chose to display this photo from the article because it shows the big Poseidon speakers, which we waaaaant, and how impressive they look. Not sure that is the color of horn that we would choose… but maybe. I would probably go for a mirror finish if Acapella actually supported that option and Neli didn’t give me that look that simultaneously says I’m an idiot while at the same time saying that she feels sorry for me with such poor taste in speaker horn finishes :-/

 

 

 

 

Pursuing the Ultimate Music Experience… in California

Well, “soon”, anyway.

We decided to rent instead of buy for a number of reasons. One is that we do not know the area well yet. Another is that prices have risen sharply the last year or two or three – now is a good time to sell, not buy.

After a long strange trip of visiting many nice homes, encountering extraordinarily nice and the occasional bizarrely unqualified not-so-nice property managers – we found a place Neli and I and Audio Federation can call home.

[One place we tried to get four different ways and got three wildly conflicting responses (the fourth response is still forthcoming). This contributed to the length of time it took us to find a place. Something that we conservatively estimated would take 2 weeks escalated into 2 months. It would have driven one of us nuts, except that I did not want to go nuts in front of Neli. It’s a sellers market out here, and that leaves room for some sellers who would otherwise be quickly culled from the herd.]

Although we originally intended on getting another house-with-an-awesome-view, we fell in love with Palo Alto, most of which is flat. We especially love Downtown Palo Alto, Professorville, Old Palo Alto and South of Midtown. There is an energy and diversity here that really suits us. Its not just families, or retired people, or Stanford students, or academicians, or Googlers and Facebookers, or young people or old people – there are all of these kinds of people here crammed together.

We *are* trying to keep the burn rate down (aka outrageous megabucks paid for rent), and there is also the ‘luck of the draw’ – you can only pick a place from the places that are available, and this is a very random set of homes at any given time. Whatever houses that happen to be on the market at the time you are looking are the ones you get to choose from.

But in the end we did find an awesome house in Palo Alto and it stood out for us from the others. As you will see below, it really works for Audio Federation and what you may have seen over the years of our ‘architectural preferences’ 🙂

The photos below are a simulation, like the previous posts, of what the systems will look like in then house. Looks like we are going to start unloading the truck today.

This is what they call an ‘Eichler’ out here. Joseph Eichler was real estate developer whose houses have an open layout internally with the rear walls of the home consisting primarily of floor-to-ceiling glass. There are 10s of thousands of these, and their look-a-likes, on the Peninsula.

So, yeah, we like the ‘bring the outside in’ feel of these houses, and they are ubiquitous – many audiophiles out here will have a home like this – so it really does work for us.

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This is the living room, as viewed from the backyard. It will be the main listening room. It is 13.5 feet wide by 20 feet long. This is the size of many mid-size listening rooms and is also very similar to the size of the hotel rooms at many shows.

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This is the view from inside the main listening room. We will put the main couch here and probably LPs on the rear wall. We will probably go with IKEA LP shelves since they seem to work well and are modern in a way that matches the Eichler home.

 

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This is the dining room aka Listening room 2. This room is 11×18 feet in size. Right now we have a pair of used Avalon Eidolon speakers which will go in here to start with. There will probably be a steady rotation of gear through this room.

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This is the 3rd listening room. This will be an office until we need another listening room. It is 11×14 feet in size.

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This is the 4th listening room. It has ‘Audio Note corners’ optimal for placement of Audio Note speakers. it is 11×10 feet in size. This is a small room, but many of our AN customers have small listening rooms like this. We might be also end up swapping Audio Note between here and Listening room #3. [just not sure how having one all glass corner will work for these speakers. Guess there’s only one way to find out :-)].

The blog here will go back to being much more about audio than house- and room-selection methodologies – though at some point we will do a more thorough wrap up of all the many, many issues the audiophile has when moving listening rooms from house to house.