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Serious stereo 2a3 amp reviews

These Audion amps are all hard wired. Our intermediate power amplifier, uses 2A3 tubes. Like all our amplifiers they ares hand built. The Silver Night Stereo range can reproduce subtleties and nuances in music that cannot be found in other amps of this price. Auto biased and have very conservative watt ratings which is equal to almost twice their rating if tested by competitors methods. We avoid the use of Chinese components where possible.


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Serious stereo 2a3 amp reviews

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WATCH RELATED VIDEO: 2A3/45 SE Stereo Tube Amp

Serious Stereo 2A3 SET amps Anyone using these??


This year there was plenty of good sound to enjoy and much of it was facilitated by tube electronics. Most of what was new or fairly new was in the way of power amplification. The trend of high-power push-pull designs has intensified in part due to the availability of the Russian KT beam tetrode. At the other power extreme, single-ended designs are alive and well. Two designs, in particular, based on the EL34 power pentode surprise!

Doshi Audio V3. The latest product addition is the V3. A 12SJ7GT pentode is used as the input stage. It is directly coupled to a long-tail pair phase splitter formed by 12SN7GT dual triodes connected in parallel to lower the drive impedance to the grids of the power tubes.

The hefty output transformers are sourced from Sowter in the UK. Although the amps are officially specified at Wpc, this is a minimum spec, as they will typically make slightly over Wpc into a simulated speaker load at the factory during their burn-in process. This is a nicely executed power amp that did a great job driving the Joseph Audio Pearl 3 loudspeaker. In general, my impression is that all speakers deploying metal drivers could benefit from tube amplification as it can nudge such speakers toward a more natural voicing.

The sight of 18 KT beam tetrodes crowning each monoblock was nothing short of amazing and really a bit frightening to a guy who routinely listens to low-power amps. I recall a time when 60Wpc was the norm for tube amps and Wpc was considered extreme. At Wpc, this is definitely the T-Rex of tube amplifiers, and really an amp in search of a suitable load.

It deploys a pair of EL34s, connected in parallel in pure pentode mode. Bias is fixed, so there are no adjustment pots to diddle with.

The A30 amp sounded both dynamic and sufficiently lush to make my heart race when driving the new Daedalus Audio Zeus loudspeaker rated at 98dB sensitivity. Roger Gibboni is not your ordinary audio designer. He brings with him an extensive background in aerospace engineering, which is reflected in how products are designed and manufactured.

The intent was to attract Millennials with a product that is not only affordable but also technically cool. I think that the combination of an iOS interface platform in the context of a single-ended tube amp qualifies as such. The combination of an EF86 small-signal pentode input stage and an EL34 power pentode has been fairly popular in musical instrument applications but has not been sufficiently explored in high-end audio.

Korg Nutube The Korg Nutube is in essence a new type of dual triode. It has a directly heated filament, a grid, and an anode and operates with triode-like characteristics. It is manufactured in Japan by the Noritake Itron Corporation on the same production line as its vacuum fluorescent displays. Well, heat dissipation is only a tiny fraction of the heat generated by a 12AX7.

The Nutube is happy at an anode voltage of 80V, which makes it ideal for battery-powered applications. For the money this system was a winner with its sound being totally engaging. In fact, I had not heard a Marten speaker sound better under show conditions.

Just reporting on my first-time listen to this system. With a Brinkmann Balance turntable, Kudos to this dynamic duo for what turned out to be for me the best sound at the show. Four- and even two-ohm loads are not an issue in terms of power delivery; think large quasi-ribbon planar and line source speakers. Driving the Amazing Line Source loudspeaker, the made a good impression, though I had to listen from the back of the room, which always seemed to be crowded.

Bob Carver, the legend, was on hand as well which enhanced the overall experience. Older units are upgradeable to the new power supply. I seriously enjoyed myself in the Serious Stereo room. What you get in one chassis is a multibit DAC, an upsampler, a network player, a phono preamp, and two vacuum-tube power amplifiers.

VK Music of Canada offers several Japanese tube amplifier kits. In particular, the new Elekit TU B integrated amp looks to be a winner and is available with custom options such as Lundahl output transformers.

Owner Victor Kung estimated assembly time for an experienced builder at about four hours. Well, it has been around for a couple of years, but still new to most of us at RMAF. Most Significant Trend: Good old vinyl continues to compete successfully in an increasingly sophisticated digital world. Excellent transient precision and bass line definition even under difficult show conditions.

Although educated as a nuclear engineer at the University of Florida, I spent most of my career, 30 years to be exact, employed as a radiation physicist at the Los Alamos National Laboratory, from which I retired in Most Significant Doshi Audio V3.

Most Popular. Back to top. By Dick Olsher Although educated as a nuclear engineer at the University of Florida, I spent most of my career, 30 years to be exact, employed as a radiation physicist at the Los Alamos National Laboratory, from which I retired in More articles from this editor. Read Next From Show See all. Last year saw the emergence of […] by Andrew Quint Feb 20th, Sign Up To Our Newsletter.


Teresonic Reference 2a3 Integrated Tube Amplifier Review

I bought this as a demo unit and it is pristine. Hand made in Taiwan with no circuit boards. Volume control is out of the circuit when fully open. All tubes test nearly new on my calibrated Precision Apparatus tube tester. Selling because I have too many amplifiers.

WANTED: Happy members who like to discuss audio and other topics related to our interest. Desire to learn and share knowledge of science.

El34 vs kt88


Joan waiting for the music in the last few grooves on the LP to be played. A good deal of calm settles in and one [me anyway] listens to the music not so much intently as in this casual, enjoying the moment kind of way. The Galibier turntable. For me, this was the best this room has sounded over the last few years. Simple, enjoyable, musical. Oto Phono SE Signature integrated amp. Magico brought monitor speakers this year the new Q1. Alon Wolf turning up the volume in the Magico room. Blue Light Audio brought the tiny Evolution Acoustics speakers to this show this year. We do not listen to many [any?

RMAF 2017 Show Report: Tube Electronics

serious stereo 2a3 amp reviews

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It has no obvious weakness. Is it the perfect amp?

RMAF 2011: Serious Stereo, Command Performance, Berkeley Audio


This year there was plenty of good sound to enjoy and much of it was facilitated by tube electronics. Most of what was new or fairly new was in the way of power amplification. The trend of high-power push-pull designs has intensified in part due to the availability of the Russian KT beam tetrode. At the other power extreme, single-ended designs are alive and well. Two designs, in particular, based on the EL34 power pentode surprise! Doshi Audio V3.

Audion Silver Night 2A3 SET Anniversary Stereo Hard Wired Amplifier

LOG IN. Sort by relevance Sort by date. Select a topic amps-preamps home-theater speakers digital analog cables music best-of tech-talk pc-audio audio-clubs misc-audio member-reviews headphones smart-home pro-audio vintage. Search title and body Search titles only. Filter by specific user. If I am recalling correctly, Dennis Fraker of Serious Stereo said the same thing—tubes that a

Serious Stereo 2A3 (Dennis Fraker) vs. First, the reviewer's description of the sound of the Fi amps is quite similar to the comments.

World Premiere: Triode Lab’s 2A3PSE Power Amplifier

Materials like ceramic and gold are used in making 2a3. We have 25 copies of this limited edition finished in the Triode Lab Classic Hammertone that mimics tube amps from the golden age of mailwizzdonloda. There seemed to be so much missing.

Audion Silver Night 2A3 Anniversary Hardwired Stereo Amplifier

RELATED VIDEO: 2a3 Tube SE Amplifier

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The 2-Stage, direct-coupled, Class-A circuit design is engineered for long vacuum tube life as well as optimal sound qualities.

2a3 stereo amplifier

Scarborough Toronto, Canada. Limited 25 Copies , , Special Edition. We have 25 copies of this limited edition finished in the Triode Lab Classic Hammertone that mimics tube amps from the golden age of mono-amps. The 2A3S Hommage is perfected with two versions of the luxurious-sounding Hashimoto Sansui output and choke transformers. Both versions provide two completely different sound presentations while retaining the traditional 2A3 signature.

Pass ACA Class A Power Amplifier Review

One of the finest sounding statement quality stereo 2A3 tube amplifiers money can buy. Please realize, that building this amp takes up about 3 months of my attention and several hundred hours of actual build time. I could get paid more by working at minimum wage. The result I get, however, is so worthwhile that I will continue to offer my expertise on a very selective basis.




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