Valve Amplifier Review

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Affordable Valve Company's review of Hi-Fi Reviewers
Does  Andrew  Everard  of  Gramophone  Magazine  have  "Golden Ears"  ?
The best "factual and scientific" Hi-Fi equipment review are found in the Gramophone Magazine.
We would like to express our sincere gratitude to Mr Andrew Everard and Gramophone
magazine for their careful and detailed testing of our amplifier.
Please take note of how Mr Everard carefully tested
and reported on the audible difference caused by the  :-
       1.  The special FREE mains cable with mains filter
       2.  The 8 ohms loudspeakers terminals with the 4 ohms loudspeakers terminal.
It is these "attention to details" , that identifies Mr Everard as
the "creme la de creme" Hi-Fi reviewer with Golden Ears.
Most Hi-Fi reviewers will have overlooked these audible differences.
We strongly recommend that you read a few months worth of Hi-Fi Reviews in Gramophone magazines, 
before spending your hard earned cash on any Hi-Fi equipment.

The Review below is reprinted by courtesy of Gramophone magazine

We apologize that out HTML layout is different to the printed Gramophone magazine of May 2000.
We had to reduce the scanned files from 50 megabytes to 1 megabyte for the internet.
We will be pleased to send you a colour copy of the Gramophone review, if you send us your address.
You can find the latest issue of the Gramophone magazine in the "music magazine" section
of W H Smith, and NOT the "Hi-Fi magazine" section of W H Smith.

Click here to go to the website of Gramophone Magazine
The most authoritative magazine for Record & CD reviews since 1923 !
They did not have a web site back then !

Affordable Valve amplifier is an
excellent alternative to DIY

Combining a sweet sound with highly competitive pricing, this valve-driven amplifier catches Andrew Everard's eye

    When it comes to 'it does just what it says on the tin' model names, the Affordable Valve Company's Class A EL34 Valve Amplifier takes some beating. The name sums up what this amp is all about - it's definitely affordable at just £600 delivered to your home. True, this is hardly the first time such a direct-sell operation has been tried in the audio industry, but the proposition offered by AVC is tempting: buy the amplifier, try it at home for a month, and if you don't like it the company will collect it and give you a full refund.

    Of course, there will be those of us who aren't so sure about such an idea, and for those buyers the amplifier is currently on demonstration at two dealers:   Buy from one of them, though, and you won't get the benefit of the maker's 30 day trial offer.
       ( Update from AVC - Dealers wants 45% trade discount and sell about 6 of our amplifiers a year !  We will not get rich , if we had to rely on dealers ! )

    I suspect few who try this amplifier for any amount of time will be too troubled about the refund policy: the AVC EL34 delivers a sound that's both smooth and
refined, and what it lacks in absolute power - despite a 4O W per channel output - it more than makes up for with its generosity and weight, allied to a good degree of clarity and  finesse. For the money, few amplifiers deliver this kind of sound.

    The price of the AVC amp seems pitched to tempt those who might think they could otherwise afford such a product only by resorting to a spot of DIY, perhaps buying a valve amplifier kit and assembling it at home. Such a path may seem obvious, but it's certainly not one to be taken on without plenty of knowledge and more than a little experience of electronics construction, however good the kit and its instructions may be. After all, there are lethal voltages inside valve amplifiers, well beyond mains levels, and it could be all too easy to make a mistake while fault-finding a home-constructed amp, and reap the dangerous consequences.

    What's more, it's unlikely that anyone but a highly experienced constructor could build an amplifier to the standards of the AVC.  The brushed aluminium fascia adds a touch of class, and is silk-screened to a high standard, while the controls operate with a reassuring precision. A fairly prosaic mains switch is fitted, together
with a green LED tell-tale for mains power, and beyond that there's nothing but a selector for the four line inputs and a click-stopped volume control which allows fine changes of level.

    To the rear are the input sockets, speaker outputs for 4 ohm and 8 ohm speakers, and the IEC socket for mains input. The AVC supplies its own mains lead, complete with a ferrite ring attached, which claims gives a sweeter, cleaner treble - changing between this and a standard 'kettle lead'-type mains cable from the junk box showed some coarsening of the top end with the ordinary in use, and noticeable smoothing when the AVC lead, which is admittedly rather short, was employed.

    The EL34 is pretty well constructed, though it won't trouble larger-scale manufacturers of similarly priced amps when it comes to fit and finish. The valve complement comprises a quartet of 6N3(5670) valves in the preamp stage - two for each channel - and two EL34 per channel delivering the power. The amplifier can be used with the safety cage removed - it's held in place only by four Philips-type screws - but if there are children or animals around it's safest to keep the cage on. That said, it doesn't extend right down to the chassis at the rear, and there is a small gap where tiny fingers may get dangerously close to hot output valves, and this is something I feel AVC might well consider addressing.

 Update from AVC - We agree with Mr Everard.
The safety cage has been improved, the above mentioned problem has been corrected. 
We will be pleased to send out the improved safety cages FREE OF CHARGE 
to any customers who wants the improved safety cage.

    To the rear of the amplifier are the twin output transformers and the mains input transformer, the mains supply system also using choke regulation to improve sound quality. And that's about it - the amplifier is almost entirely frill-free, and the only options are phono stages, a moving magnet device adding £40 and one for moving coil cartridges £140.


    The AVC EL34 takes about an hour to come on song from power-up, and the Class A design really precludes leaving it powered up all the time. So some patience will be needed on the part of owners: the amp is listenable to within a couple of minutes of being switched on, but its sound smoothes and fills out over the initial hour of use. But it's worth the wait: once 'cooked' this amplifier is capable of remarkable imaging while offering superb ease of listening, and it doesn't produce the grain or glare that can afflict some solid-state amplifiers.

    In fact, it takes some time to acclimatise to the sound of the AVC, simply because much of the forwardness and apparent impact heard in many amplifiers seems to have gone AWOL. The presentation here is understated to a fault, and it's only over an extended listening period that the way this amplifier plays music begins to grow on the listener. For that reason I'd suggest that the one-month trial scheme is well worth considering: it's only over that sort of period that a firm opinion of the amplifier, one way or the other, is likely to be formed.

    For this test I connected the AVC between my Marantz CD-7 CD player and Monitor Audio Studio 20SE speakers using Nordost cables, and initially followed
the manufacturer's suggestion of using the 4 ohm taps even when speakers of nominally higher
impedance are being used. However, I found that using the 8 ohm taps gave improved dynamics and clarity - not a night and day difference, admittedly, but well worth having. It would seem that some experimentation will pay dividends in many systems.

    Once settled, the AVC amplifier manages to combine warmth and control in equal measure, and what its treble lacks in sting and attack it more than makes up for with its fluid, pleasing delivery. At most normal listening levels there's an ease to the sound that's hard not to enjoy, and only when you push the amplifier up near its limits with complex dynamic music, can some hardening begin to creep in. But the onset of such artefacts is relatively gentle, the amplifier clearly telegraphing that its engine room has nothing more to give.

    Broadly, however, this is an immensely pleasurable listen, as much with the soaring music of Sibelius's Karelia Suite (Naxos) as it is with the stirring reading of Walton's Spitfire Prelude and Fugue by the English Northern Philharmonia under Paul Daniel, in another wonderful Naxos recording. What at first sounds like a soft, poorly focused sonic picture, particularly by comparison with the finely etched sound of many a solid-state rival at this price, is soon revealed to have a solidity and organic nature all of its own, making the speakers disappear and presenting a seamless spread of sound in which the position of individual instruments, or indeed the contributions of the sections of an ensemble, is readily discernible.

    And the EL34 has a relaxed, natural affinity with the timbre of instruments, whether it's the brass in the Walton or delicate strings in Takemitsu's Requiem for strings (Philips, 2/98), while voices are handled with similar humanity, as it made clear when I listened to Ute Lemper essaying a selection of songs by Kurt Weill (Decca, 3/89).  The sharp rasp of the voice is delivered beautifully, with every word crystal-clear, giving the lie to the claims of valve detractors that amplifiers like this sound soft and woolly.- the AVC is anything but, managing at once to sound full, rich and informative.

    Yes, this amplifier has its limits, and anyone seeking to reproduce music at front-row-of-the-stalls levels, or with a penchant for wall-shaking organ music, will either need speakers of high sensitivity or a bigger amplifier. For most listeners, however, the output of the AVC will be more than adequate, and the enchanting way it makes music more than sufficient compensation for the slight limitations of the amplifier when it comes to absolute levels.

    It's a device of definite character, and those brought up on mass-market solid-state amplification will find it at least very different, and perhaps impossibly smooth and unlike most affordable hi-fi equipment. Whether that's a good thing or bad is very much a  matter of taste: if you believe that much modern equipment sounds
 too sharp or harsh, especially in treble, this amplifier, partnered sympathetically with source components and speakers, could provide just the relief you're
 seeking. If not, you may feel it's a little too lush.

    I like the EL34 Valve Amplifier a lot, and despite its slightly crude looks and the limited input socketry I could probably live with it as the heart of a simple system of CD player, tuner, amplifier and speakers. But I suspect the appeal of this amplifier will be governed as much by prejudice and common beliefs about the relative merits of solid-state and valve amplification as it will by the real-world needs of multisource systems, and the greater convenience offered by price competitive designs with their record/listen selectors, remote controls and so on. But just for once I really can say 'decide for yourself - thanks to that one-month trial scheme, discovering whether the AVC is right for you is a no-risk proposition, and an opportunity of which I'd suggest you avail yourself, if only to find where you sit in the valve debate.  Be warned, though, that the sound of this amplifier is really rather addictive.

  Affordable Valve Company
  Class A EL34
  Type Integrated amplifier
  Inputs 4 line
  Input impedance 100k ohms
  Output 2 x 40 W
  Frequency range 20 kHz - 60 kHz (+/-1.5dB)
  Total harmonic distortion <1%
  Signal to noise ratio > 9O dB
  Valves 6N3 ( 5670 ) x 4, EL34 x 4
  Dimensions (W x H x D, approx)
              420 x 200 x 310 mm
  Weight (approx) 23 kg
  Supplied accessories Power cable, interconnects
  Price £600
  Affordable Valve Company, 11 Magdalen Close, Hempstead,
  Kent ME7 3TA, England, United Kingdom
  Tel 01634 373410

Reprinted  by  courtesy  of  Gramophone Magazine
Click here to go to the website of Gramophone Magazine
The most authoritative magazine for Record & CD reviews since 1923 !
They did not have a web site back then !

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