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Because I cannot see or hear the K&K phono preamp kit before purchase, I have several questions about it. The kit I am referring to carries an MSRP of $1,500, and is shown on K&K Audio’s price list but no picture of the kit appears on the web site.Here are my questions:
1. Is the complete phono kit identical to a fully built Art Audio Vinyl Reference phono stage? If these two units are not the same, how do they differ?
2. Will the kit handle low-output MC cartridges? If not, what else is required?
3. The Vinyl Reference has the following specifications: a) MM: 43 dB gain @ 47K ohms in parallel with 220 pF; b) MC: 63 dB gain @ 100 ohms, 300 ohms, and 47K ohms. c) Output impedance = 200 ohms.
Does the kit have the same specifications? If not, what are they?
Does the K&K phono kit have the same sound as the Art Audio Vinyl Reference? If so, would you say the following comments from Positive Feedback are valid and applicable to the K&K phono kit:
“…the Vinyl Reference will not rock the house. It simply will not win points on the slam-bang dynamics of rock-driven-thrash-music when compared against the competition…the Reference is a bit soft, and is lacking in extension at both ends of the spectrum…it just makes things sound less defined and full in the bass, and softer and less "sparkly" at the top…the bass simply could not offer the slam and control I am used to hearing…The bass lacks sufficient slam, definition, and texture. It goes deep alright, but it never really got my juices a’vibratin.” -- Dave Clark
“This phono stage is not neutral in tone—it has the warm, tubey, even syrupy voicing of classic tube gear—yet somehow it maintains that glass bottle glow without smearing all of the detail out of the music…The only thing I found dissatisfying about the Art Audio was its dynamics. To be clear, I am speaking about macrodynamics…the Art Audio always sounds pretty. It lacks some snap and growl when called upon…the leading transients of instruments such as drums and guitars seemed a tad soft…when called upon to get really big (think Wagner), the Art Audio sounded a little restricted…Interested buyers of the Art Audio phono preamplifier will be divided into three camps. One third will not be able to live with its dynamic limitations, a second will own associated equipment that is sufficiently lively in character to offset the Art Audio’s limitations, and the final third simply won't care about the dynamics, because the Art Audio does everything else just right.” – Bryan Gladstone
“…the ART [sounded] warmer and slightly more forward. Cymbals were…a tad brassier on the ART. The ART rendered the performance as if the instruments were in the room… The ART seemed to catch that illusive spark of reality and make the record sound less like a recording…The sonority and richness of the ART was terrific. It delivered very good, deep bass with beautiful overtones and warm hall acoustics…The ART rendered female voices faithfully…The piano and voice were present in the room, and distortion was nonexistent…The mids were nearly alive, and exquisitely airy. The orchestra was clearly in front of the chorus and the balance was right on target. The performance was more lifelike with the ART…Both preamps were dead quiet…The ART also seemed to slightly reduce surface noise…the ART is ear candy! Your record collection, particularly your treasured golden oldies, will be exalted on this gorgeous piece of audio legerdemain. Its flexibility will surely benefit any system, balanced or single-ended, solid state or tube. Its lack of idiosyncrasies was a joy, as was its sound. The ART is a piece of art.”
-- Robert H. LeviThese comments can be found at
http://www.positive-feedback.com/Issue11/vinylreference.htm
and
http://www.positive-feedback.com/Issue7/artaudio.htm
Thanks in advance for any help you can provide.
Follow Ups:
Now I can weigh in! The difference between the K&K kit and the Vinyl Reference is mainly in the power supply. The VR uses a larger power transformer and the high voltage for each stage is regulated with a hybrid shunt regulator. This makes the VR more immune to line-induced noise and makes the operating points of the amplifying stages stable against line voltage changes. The VR is implemented on one large PC board, while the kit uses 3 boards for more spatial flexibility.The development of the kit was a labor of love (and hate). I had designed and built 3 very different phono stages prior to this and really ultimately hated them all after getting over the initial change euphoria. This time I sought to not make the mistakes (sonic or practical) that I made before and ultimately still enjoy the results of my work 1 or 2 years later, after long term use conditioned the euphoria of new. I am happy to say that I was successful this time! There are undoubtedly better phono preamps out there, but I think that this one offers superb value to anyone with the desire to have something that they won't need or want to replace for awhile.
Thanks for all of your kind comments!
Kevin Carter
K&K Audio
www.kandkaudio.com
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I am sorry if I had to ask those really "tough" questions, but I don't know anything about K&K phono stage. Someone mentioned that it was identical to the Art Audio Vinyl Reference. Apparently it is not, which is a good thing. At $1,500 I believe I have found my phono stage of choice. Now I have to practice my soldering technique!When I get the chance, maybe later this week, I would like to respond to each of your posts.
I replaced the Art Audio Vinyl One phono stage with K&K phono stage. My unit is customed made for me by Kevin with built-in TVC (transformer volume control) as I don't use a preamp, the phono stage goes directly to my amp. It also has a seperate power supply with tubed rectifier and MC only for my Koetsu Rosewood signiture. The unit has been with my system for over a year and I just did the upgrade kit 3 months ago.
The review quoted is totally inaccurate, the opposite of it is more of my opinion of the K&K phono stage. This phono stage is by far the best I have owned and listened to. My system is a vinyl only system and this phono stage is the soul of my system and I truly enjoy it immensely. The sound is neutral, it has the right tonal balance, the speed is right, not too tubey and not too dry, great dynamics, excellent muisc flow. My taste of music is all classical and I attend live concert all the time as my daughter is a violinist. This phono stage gives me what I look for in music reproduction... natural and real...especially with the Quad 63 speakers.
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Since I have had one of these for quite some time, I need to put my $.02 in to the discussion. My vinyl system is a Nottingham Analogue Hyperspace with a Cardas Heart Ruby cartridge. My comments follow the quotes:“…the Vinyl Reference will not rock the house. It simply will not win points on the slam-bang dynamics of rock-driven-thrash-music when compared against the competition…the Reference is a bit soft, and is lacking in extension at both ends of the spectrum…it just makes things sound less defined and full in the bass, and softer and less "sparkly" at the top…the bass simply could not offer the slam and control I am used to hearing…The bass lacks sufficient slam, definition, and texture. It goes deep alright, but it never really got my juices a’vibratin.”
---> Maybe you should get new batteries for your vibrator. This baby "Rocks the Casbah" . From classic rock to jazz bass and organ music, there is no shortage of dynamics and 'slam' as well as articulation. Bells and flutes sound astounding lifelike and you can hear the sound of a bell decay nicely and naturally. It's also got lots of natural pace, rythym, and timing. <---
“This phono stage is not neutral in tone—it has the warm, tubey, even syrupy voicing of classic tube gear...
---> This had got to be the most neutral sounding phone stage I have ever heard and I've heard quite a few. I don't think it's got the warm tubey sound of old, I think we've been conditioned to the sound of solid state so-called "hi-fi" sound poo-poo for too long. Once you hear how natural this sounds, you hear things you have never heard before in a way they have never been heard before... Too many manufacturers design their kit to sound like everyone else's (so audiophiles will buy it) but few manufacturers pay attention to the presentation of live music and recreate that experience for us in their equipment. <---
“…the ART [sounded] warmer and slightly more forward. Cymbals were…a tad brassier on the ART. The ART rendered the performance as if the instruments were in the room…---> Exactly, cymbals are brassy the last time I heard one live. The last line says it all: "The ART rendered the performance as if the instruments were in the room". Isn't that what it's all about ? I don't know about you, but I want the musical reproduction in my listening room to be a close to the live performance as possible. <---
I say "Bravo" to Maestro Carter for bringing this product to our ears !
I would disagree with most of the PF review. The thing that caught my attention on first audition of this phono stage was the stunning dynamics and retrieval of low level detail. I don't think the bass is soft or that there is anything at all missing on top. Just a very natual soundI listen to a wide variety of music including hard rock and even heavy metal sometimes. The K&K phono stage never fails to deliver "growl" or slam when called upon to do so.
I am a happy owner, willing to try and answer.
1. No, not sure about the exact differences; I had asked the same question, my recollection is that the Power supply is the main difference.
2. Yes, MC ready.
3. same specs except that the K&K offers more loading options such as 1K (MC) and a 47K alone setting for MM
Subjective opinions are tricky. In its current improved_ with_ Cardas_ cap incarnation, the K&K is the least coloured phono stage I have encountered, utterly musical and natural , and provides a very palpable window into the musical event. I agree most with the Levi commentary as a description of what I hear. I get better emphasis in lower/mids and lows with a S&B stepup, but at a considerable extra cost ($700). YMMV.
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I built this kit 1 1/2 yr ago with two pwr boards, one for each channel, installed the upgrade kit few months ago with some teflon caps installed. I also have S&B 103 as step up from day 1, zero experience with Lundahl step-up.
Seems to be an expansive unit as a kit but it is a VERY nice sounding unit.
Will I do it again? Yes!
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