The A4e, handmade by Knut Cornils in Germany, are a further development of the A4-CB mono-blocks, using a separated power supply unit with even more Class-A power and authority.
A massive 500 VA toroidal transformer in a separate case, 8 ultrafast 15 A rectifier diodes plus 176.000 µF of filter capacitors per channel guarantee excellent performance and stability. No capacitor in the pure silver wired signal path. Power amp and power supply are equipped with excellent feet from bfly Audio. "JUST PURE MUSIC!"
"...AWESOME!! I now hear vocal harmonies and pick out each voice and where they are in the soundstage. Same with instruments and latin percussion. Every instrument is soooo real and perfect timbre..."
"...these are the best sounding Class A amps I have heard, certainly better sounding than the Pass X or XA amps that have visited my listening room..."
FIDELITY AWARD WINNER 2020 (May/June 2020):
"...the new "e" generation rests on stable, sonically excellent feet from Alto-Extremo. The 65 watts at 8 ohms make music amazingly dynamic and stable...those who do not get goose bumps at what the Valvet mono amps offer in terms of drive, transparency and clarity at this point should urgently make an appointment to see a doctor..."
Greg Voth of The StereoTimes concluded (06/2019):
"...the Valvet A4e Class-A Mono-Blocks mated wonderfully with my efficient Tekton Double Impact floorstanders and, with their 65 watts on 8 Ohm/105 watt on 4 Ohm output capacity, they will dominate far more most difficult speaker brands. Even with a solid state preamp in the mix, they produced a relaxed, rich and lush musical palette, each note delivered with panache and nuance that subtly coaxed and charmed this listener to listen longer… and longer. With no capacitors in their pure silver-wired signal path, these Valvet a4e’s are the real deal..." to check out the entire review
Jochen Reinecke, Fidelity Magazin (02/2018):
"...the good news: the Valvet mono-amps are actually better! Better to such an extent that the price difference is entirely justified. This can be seen in three different areas: First, micro-resolution in the upper treble has markedly improved... Second, there is a marked improvement in spatial positioning. Pin-point spatial orientation of instruments in the ‘background corners’ has increased, but also micro-orientation within the plane...Finally, the Valvet mono-power amps have become even faster: their ability to mobilize enormous energy from a moment of absolute stillness - without limits, compression or distortion... Those who do not get goose bumps at what the Valvet mono amps offer in terms of drive, transparency and clarity at this point should urgently make an appointment to see a doctor. My conclusion: Valvet have managed to significantly improve an already great product. Congratulations!"
to read the entire review in English, or for German
Long lasting pleasure
The VALVET A4e mono blocks are currently the most potent power amplifiers in our line-up. Again, long term satisfaction, real value and reliability are key values. Those who own these power amplifiers can put any worries about amplification to one side for a very long time!
What the A4e conveys in terms of musical information is simply breathtaking! We encourage you to compare them to the top brands and then decide which delivery gives you the greater pleasure.
Performance and dynamic.
The A4e amplifiers are extremely quick, controlled and powerful. They don’t force themselves onto the music, but rather support its flow and the listener’s involvement. Compared to the A4 power amps they deliver even more fine details and play even more effortless and natural.
The A4e mono blocks have an output of 65 watts per channel into 8 ohms and 105 Watts into 4 Ohms. We believe that you will not feel the need for more power for a long time. The A4e power amplifiers, in common with all other VALVET amplifiers, have an extremely stable power supply which gives them an excellent ability to deliver current, thus keeping even the most difficult speakers on the market on a tight leash.
The A4e mono blocks operate in Push-Pull Class A mode with just a single pair of transistors in the output stage. We believe that the common practice to employ several transistors in parallel required to produce a higher output is detrimental to the sound quality.
The sound is dynamic, neutral, balanced, very musical, very powerful with blackness and control in the bass, simply right. ’The power and the glory’ - indeed!
Current factory lead time is around 3-4 weeks.
- connection: WBT NextGen RCA & Neutrik XLR sockets, input impedance 50 KOhm, 1 pair WBT NextGen bindig posts for speaker connection (bi-wire optional), IEC mains socket
- amplification: 65 watts into 8 Ohm, 105 watts into 4 Ohm, Class A
- transformer: 500VA each mono-block
- filtering: 176,000 µF filtering each mono-block
- dimensions: 230 x 110 x 320 mm (9 x 4.4 x 12.6") WxHxD ea. monoblock and ea. PSU
- case: silver or black powder coated aluminum, Carbon Fiber top (amp)
- front: 13mm Aluminum, silver or black brushed (amp & PSU)
- sound: dynamic, neutral, balanced, very musical, very powerful with blackness and control in the bass, simply right.
Review for the A4 on HiFi Zine. Patrick Dillon concluded:
"...and this is how I end up feeling about the Valvets. They are so finely balanced and cohesive that you might at first wonder about their unique qualities. They won’t immediately catch your ears with detail, but those details are there to be heard; they won’t blow you away with unparalleled bass depth, yet the bass is full and realistic; they can deliver space and decay while slamming you with dynamics when required. When you hear them over an extended period of time on music you love, you come to realize there is something quite special about these amplifiers. In their understated manner, small footprint and relatively low power specification, the Valvet A4s are capable of delivering musical reproduction that is as good as I can remember hearing. There was never a recording I played where I felt I was missing something or that the amps were not delivering the goods, and that’s across multiple genres and ages of music. Class A all the way..."
to read the entire review
The predecessor, the Valvet A3.5 monos (and the Valvet soulshine pre-amp) was StereoTimes’ Most Wanted Component Award winner 2009.
Robert Learner of PFO wrote: "...smooth, dynamic, lively, and organic. Tonal purity suggests straight-wire gain with a dash of inner glow. Soundstaging is precise in localization... Transients have snap and life, and decays are full-blooded, something I’ve come to associate with Class A electronics versus some other designs. There is none of the sterility I’ve heard with some other solid-state amps... haven’t heard better for the money and certainly worse for more. These components have some magic, something past competence or even excellence and into the illusion of ’real’. You can find components that do this or that better in the price range, but none I’ve spent time with are as addictive. They get the essence of the music... The sound quality is not only that good, it’s that true—park them on your rack for the next ten years and find other things to worry about."
Key Kim of StereoTimes wrote: "...from the very first notes on the very first album, it was obvious that the Valvet combo was something special. In our age of hyper-priced imported components, it’s not just good sounding (even at just over $11k) The Valvet components are the real deal regardless of price.... They are giant-killers in that they provide the ultimate musical bliss without breaking one’s bank account. If you’re looking for that really great sounding system that isn’t stratospherically priced, then look no further than Valvet..."
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Here only a few testimonials from US customers:
"...after over a week of listening and comparing, I can honestly state that Valvet equipment has the performance to beat. I don’t know if I had mentioned to you that I own a Pass Labs XA30.5 stereo amplifier, but that is what I compare amplifiers against, and I can confidently state that Valvet has the better amplifier...I compared back and forth between the Pass Labs unit and the Valvet A3.5 mono-blocks using the same sources, same preamp (my Valvet), even the same cabling, and time after time I selected the Valvets as having the better sound, staging, bass attack, and highs...Couldn’t be happier!"
"...this evening I sat down to read the July/August 2011 edition of The Absolute Sound Magazine, and thought I’d put on some pleasant but mostly background music as I read. ’The most relaxing Jazz Piano music in the Universe’ by Denon. Just background stuff for when we have people over for dinner, etc. OK, disc two "Lover Man" with Sonny Stitt and Cedar Willams. The overall presence and (fill in every over the top audio review you have ever read) and the Vibraphone bloom and decay, etc. etc. made me put my beloved Absolute Sound down to e-mail you with my wholehearted appreciation for your having this, in my experience, the best audio value for power amps (with appropriate front end, cables and speakers) in the universe--tubes or solid state..."
"...the A3.5’s continue to impress me with their ability to really convey the music and the performance on a wide range of music, vocals, and instruments. Truly amazing! I am very satisfied with this purchase and everything stated about them is absolutely spot on without any hype..."
"...timbre, nuances, speed (bloom and decay), soundstage depth and width, dynamics and imaging were all spot on without being forced, etched or "driven" in the HiFi sense. I was somewhat skeptical that the relatively low rated wattage (A3.5 mono bocks) output would really do the job, but once installed, the volume setting on my preamp was very close if not slightly less that previously using tube amps rated at least twice as high and solid state amps rated four times as high in output wattage... Vocals (male and female) were rendered with more subtle shadings and were startling in the "you are there sense", bass is now much more "fleshed out" in all its potential in timbre and dynamics, snare drums, brushes, cymbals and top hats are extremely more involving and piano is rendered in a manner that I thought I could never reproduce in comparison to the real thing.... In short, I have moved from listening to music to experiencing the performance. An amazing feat of engineering from an individual who has not only the skills and intellect but the passion for music and this wonderful hobby/obsession called audio. Thanks again for making this wonderful amplifier available in the United States."
"...I was very impressed (awesome). Compared to some way more expensive gear, the Valvets (soulshine & A3.5) held their own in an excellent way. And for what they cost, I have to scratch my head and wonder..."
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