Preamp shoot-out

flyer

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Dec 16, 2012
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All, as I have been drawing quite some interesting information from this forum I would like to return and share some experience while looking for a preamp upgrade;
Old system configuration;
Source: Weiss Jason 24/176 -> Grimm CC1 reclocker 24/176 -> Weiss Medea (upgraded to accept 24/176 signal single wired)
Preamp: Art & Technologie (artec) Prestige
Amps: Lamm 1.2 Reference
LS: Focus Audio Master 2.5
Current conditioner: Gigawatt PC 4EVO
Cabling: Analysis Plus golden oval throughout (interconnect and ls), power is a mix of Transparent, Argento Audio and Kubala.
I listen primarily to classical music, ranging from the soloist to the big organ and symphonic works.
I have a dedicated, small (4.2 x 5.4 x 2.4 metres) and well-treated room and have gone at length in loudspeaker positioning and applying the different treatments.

Problems;
In the above system the highs were too bright, causing listener fatigue + only rarely did I have a bass experience that I felt was somehow realistic + timbral accuracy (due to the brightness) was not very convincing.
Very good things the Prestige preamp does very well on all occasions; fantastic soundstaging, focus, balanced spectrum, hugely transparent.
I got to the conclusion (how I got there is another story ?) that my ss preamp was actually not a good match in my system (It had become too transparent if you want, the balance between warmth/ambiance and detail/focus was lost) and either I needed to change other elements of the system or the preamp so I went for the latter solution.
Now finding a replacement of that preamp was not easy, which says enough about the intrinsic qualities of that preamp.

Tests;
Krell EVO 202; quite ‘dead’ sounding IMO, very ss-like, needs to be partnered with another piece of equipment that lightens it up and clearly the rest of my equipment was not part of that. I had heard with good vinyl before and that certainly lightened it up but I am not a vinyl person.
Lamm L2 reference; very nice with sweet highs, good bass, very engaging but features only single ended connections and single ended means (mostly) loss of detail and (hence) less 3D-imaging. I wasn’t willing to agree with those drawbacks.
Audio Research Reference 5; excellent preamp as well but… throws a soundstage which is so wide that I wanted to lift my canapé and move it at least two metres to the back, if my wall wasn’t there ?. This was still so when I changed my loudspeaker toe-in and position. So couldn’t live with that neither although it is clearly one of the top three preamps I heard albeit the one with the weakest bass and focus and a too forward midrange but with sweet high! A cello became two metres wide suddenly.. The SE version must be quite stellar but I wasn’t able to audition that one.
VAC Signature Mk2; At first hearing, this excellent preamp was a replica of my artec prestige but doing everything better. Exactly what I was looking for. At first I was listening a lot to it, more often because I was amazed by the quality of the bass and 3D soundstaging and focus (this unit had by far the best of all three attributes of all preamps tested) with a good timbral accuracy so I continually discovered new things and listening to a tight and very low bass is addictive. But I eventually felt disconnected from the musical message; I was hearing too much the instruments, not the symphony(c orchestra). Probably an ideal preamp for those that have a larger room where the recomposition of the orchestra is more natural as the listening distance increases. It certainly gave the impression that my amp’s power was considerably pumped up but in a very controlled way.
Jeff Rowland Criterion; Very good preamp as well, must be a very good match with tube amplifiers (or JR’s own amps which are said to be on the warm/dark side) but not with my system although the whole musical message was conveyed very convincingly with good bass, transparent midband, extended (not bright) high.
Brinkmann Marconi; decent preamp but clearly not in the league of what I was looking for.
Weiss Medea as a preamp; if I hadn’t tested the Zanden 3000, I would have stayed and could have well lived with ‘just’ the Medea as a DAC/preamp, it is that good. I considered upgrading to the Medea+ (with output volume control) but that has become very expensive (close to 6.000 EUR) nowadays and I wasn’t sure it was going to equal or better the Zanden and as the latter opportunity came along, I seized it. In direct comparison Medea/Zanden the latter of course has the edge with timbral accuracy and tighter and slightly lower bass. If the Medea were equipped with a separate top notch power supply then it would be another story I guess.
Zanden 3000; well I think I hardly need to say too much about it as, reading what I wrote above, you probably will have a pretty accurate idea of its virtues by now ?. I bought it.
Important remark; except for the VAC, no preamp has been able to give me the lower register restitution as I was looking for until, upon the suggestion of a dealer who came at my home, I started (again ?) to reposition my speakers putting them considerably closer to the back wall (moving about 50 cms backward!) and suddenly the image in the lows was where I wanted it! With my old preamp it was not convincing (and highs still too bright) enough but with the Zanden, which is far better in control across the spectrum, I have now been able to make a quantum leap in reproduction.
Moving the speakers back so far obviously means a loss in soundstage depth but again there the Zanden compensates enough so I am not missing out on that neither.

Conclusions;
I was positively surprised I had to go through so much effort before finding a clear winner preamp replacement which is testimony to the quality of my previous French preamp! If you have a slightly (too) euphonic system already or just want a tighter (ss-like) image combined with extremely good soundstaging, focus and pace , then this is the preamp to beat (in the 9.000 EUR price range). Preamp is btw still up for sale for a mere 3500 EUR ?
It is confirmed again that acoustics quality and loudspeaker positioning is a very very important element that makes up half the quality of your system!!
Half the quality of a preamp is defined in the quality of the power supply!
Don’t hasten your conclusion if you think it is a positive one, prolonged listening is imperative. If you don’t like it from the very first notes, very unlikely you will start to like it later though…
Patience is a big virtue which probably most of you (nor I ) don’t have.
 
Given that the "DAC direct" route was your second preference, I am surprised you did not at least give the option of using the Medea + as a volume control a whirl. The + has upgraded analog output section. I guess you can still upgrade to + level and keep the Zanden. Another option would have been to try a few different DACs with volume control. Have you considered this?
 
You are right but I really wasn't able to find any useful testimonies on the web on the virtues of the + version and the ones that are there, seem to indicate the improvements I already get now by having a Grimm clock between the Jason and the Medea (which makes a substantial improvement! I don't think the jitter control of the Jason and Medea are up to current standards, but that is another matter.)

Anyway, when asked on the improvements, Dan Weiss told me that "some people prefer the old Medea, others prefer the Medea+" which seems to indicate the outcome of such expensive upgrade on a meanwhile ageing piece of equipment is doubtful. The devil you know is often better than the devil you don't know ;)

Last but not least the sound is just better with the Zanden than without. Still, am interested to know what the Medea+ would have given. It may be possible that I will be auditioning the Medea+ but not certain yet... will keep you posted what that gives.

Trying other DAC's, pfff... you need to know I kind of 'hate' all these tests but I have a quite defined expectation of what I want to hear which is why I did so many tests, but in the end I regard myself a music lover and not a pure audiophile. Anyway, the Medea is, and I am quite certain of that but don't ask me any comparitive tests, a top contender among the DAC's albeit not having volume control... I know. Making choices is not always easy, I hope now to be settled for another year or two till the next big thing comes up :).
 
You are right but I really wasn't able to find any useful testimonies on the web on the virtues of the + version and the ones that are there, seem to indicate the improvements I already get now by having a Grimm clock between the Jason and the Medea (which makes a substantial improvement! I don't think the jitter control of the Jason and Medea are up to current standards, but that is another matter.)

Anyway, when asked on the improvements, Dan Weiss told me that "some people prefer the old Medea, others prefer the Medea+" which seems to indicate the outcome of such expensive upgrade on a meanwhile ageing piece of equipment is doubtful. The devil you know is often better than the devil you don't know ;)

Last but not least the sound is just better with the Zanden than without. Still, am interested to know what the Medea+ would have given. It may be possible that I will be auditioning the Medea+ but not certain yet... will keep you posted what that gives.

Trying other DAC's, pfff... you need to know I kind of 'hate' all these tests but I have a quite defined expectation of what I want to hear which is why I did so many tests, but in the end I regard myself a music lover and not a pure audiophile. Anyway, the Medea is, and I am quite certain of that but don't ask me any comparitive tests, a top contender among the DAC's albeit not having volume control... I know. Making choices is not always easy, I hope now to be settled for another year or two till the next big thing comes up :).

I see. Two years is a long time expecially for all things digital, so it may be indeed a smart thing to just enjoy what you have and look into DAC technology in a 2 years' time. May be "femto clocks" have hit the mainstream at that point...
 
Did you ever have your loudspeakers measured in your room??
It looks to me you are(were) expiriencing elevated highs , when a tweeter is dialed in too hot, , you will try to find a balance to get good bass , but trying to get good bass , automatically youre tweeter sounds to loud .
Reducing the output might solve the problem , replacing your speaker to another spot can also improve the balance although to a limited extent.
Is there a tweeter level switch on the speaker ??

If this is not the case, one more thing you could try is to put felt around the tweeter (midrange), this will improve focus and sound like reduced output , if you dont like it you can always take it off

Congrats on buying the zanden ,(one of) my favorite as well , if the zanden and the speakerreplacement restored the balance , then ive said nothing.
 
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Did you ever have your loudspeakers measured in your room??
It looks to me you are(were) expiriencing elevated highs , when a tweeter is dialed in too hot, , you will try to find a balance to get good bass , but trying to get good bass , automatically youre tweeter sounds to loud .
Reducing the output might solve the problem , replacing your speaker to another spot can also improve the balance although to a limited extent.
Is there a tweeter level switch on the speaker ??

If this is not the case, one more thing you could try is to put felt around the tweeter (midrange), this will improve focus and sound like reduced output , if you dont like it you can always take it off

Congrats on buying the zanden ,(one of) my favorite as well , if the zanden and the speakerreplacement restored the balance , then ive said nothing.

I have tried all of the above (not the felt...) and as such very aware of all the variables that play into getting a system to sound as it should + being able at the same time to evaluate the components of the system. There was no way to get rid of the bright highs but by replacing the preamp as I did, at least not if at the same time you don't want to give up all the good things. yes, we are acting like spoiled kids here.:cool:

Regarding single ended loosing detail and imaging, that is at least my conclusion after quite a few years in the hi-end arena. This doesn't say there is no detail or imaging with RCA but just more so in my modest opinion with XLR just as I noticed with the Lamm L2. No doubt other people will think otherwise and I don't claim that either is right or wrong, it comes down to taste and expectations is my guess.
 
Congrats, Flyer. A big, big fan of Zanden here. I have their Signature DAC, and am contemplating their 9600 monos at the moment. Sounds like a great shoot-out. Congrats again...enjoy!
 
Flyer,

Thanks for the write-up. It was very informative. It sounds like we have similar tastes in music and listening preferences. I'm very content with the BAT Rex, but I'd be interested to hear the VAC and Zanden sometime.
 
interesting experiment you did..I would suspect that the Lamm would fit perfectly with your requirements...but that is how it works right? :)

Another route is to try the cable route as an option, my Crystal Cable Dreamlines just turned my system into a different (and better) animal in terms of tonal rightness and balance, just as if I had swapped preamps!
 
interesting experiment you did..I would suspect that the Lamm would fit perfectly with your requirements...but that is how it works right? :)

Another route is to try the cable route as an option, my Crystal Cable Dreamlines just turned my system into a different (and better) animal in terms of tonal rightness and balance, just as if I had swapped preamps!

My philosophy is that the equipment by itself must match what you expect from it. Cabling and supports should finetune or enable small incremental improvements. Trying to solve a fundamental mismatch by changing a cable is in my opinion not the right way to go. I obviously come across persons with 'if you put his cable it will solve it all' attitude and even sometimes gave it a shot. Once I get beyond the point of initial surprise because it is different I start to realize that it is not necessarily better though sometimes it is of course. Of course, a lot depends what you upgrade from, i.e. swapping a stock RCA set delivered with the sony videorecorder by a hi-end type of cable to give an extreme example, is going to give (or should at least :eek:) an equally extreme difference.

I read very good things on Crystal cable (just this month POY in TAS i think) but at their price point, I might buy a new system :D Now, putting just one of these cable in the equation might certainly improve though my golden ovals are no slouch neither and I keep coming back to them.
 
Lamm L2 reference; very nice with sweet highs, good bass, very engaging but features only single ended connections and single ended means (mostly) loss of detail and (hence) less 3D-imaging. I wasn’t willing to agree with those drawbacks.

Not in my experience, I've heard no such limitations with fine SE based components. Admittedly, I've heard plenty balanced gear sound excellent, and were indeed better when in balanced mode, but I consider that more of a design initiative than an inherited character of SE as a whole.

To date, the very best systems I've heard in regards to detail retrieval, musical integrity, and dimensional qualities remain SE.

tb1
 
Not in my experience, I've heard no such limitations with fine SE based components. Admittedly, I've heard plenty balanced gear sound excellent, and were indeed better when in balanced mode, but I consider that more of a design initiative than an inherited character of SE as a whole.

To date, the very best systems I've heard in regards to detail retrieval, musical integrity, and dimensional qualities remain SE.

tb1

one wonders why XLR exists then? Surely not just to enable long cable runs or maybe so? As I wrote, it is a taste of personal interpretation and expectation of how music should sound. I can well imagine that someone like tb1 finds a balanced setting too revealing or feeling unnatural.
 
This is not a question of whether a single ended or balanced cable sounds better, it's a question as to whether the components (amplifier) used sound better single ended or balanced. In some cases SE is better (my DartZ for example) and in some cases balanced is better (Burm 911mk3).

The only advantage of balanced cables is for huge cable lengths; the audio signal is carried twice within the cable, one being in inverted polarity, and any difference between these signals is noise it has picked up along the which is removed inside the amplifier by the balanced circuitry. Sometimes this additional circuitry harms the sound, and in these cases SE sounds better (unless you use a long cable run in a noisy environment where the noise suppression outweighs this benefit).

I have read somewhere that XLR is applicable mainly to studio's that have 10-20m runs of cables with a large number of different cables in a mess all hunched up together.

Something in favor of SE is that more conductor material is used. Let's say a 1000$ SE cable may have a single 14 AWG silver conductor, this same 1000$ cable in balanced XLR version will have the same amount of cable mass, but split over 2 conductors, so two conductors of only 17 AWG each.

I personally have gravitated to prefer SE cabling for this reason and as I have short runs (I have my source component directly next to my amp). I will use whichever cabling sounds better on the amplifier, XLR with the burm, and now RCA with the DartZ.

flyer- I am now back in EU, we can arrange that listening session if you want. I would be interested to hear the zanden in my system and we can compare the Medea against the Medea+. I have yet to hear a preamp outperform the medea direct to the amp ;).
 
"features only single ended connections and single ended means (mostly) loss of detail and (hence) less 3D-imaging".

This raised my eyebrows also, like several others. It is all in good audio circuit design, poor design and too many unnecessary so called 'good sounding' components and 'techniques' in the signal path will lead to reduced resolution. However, good audio circuit design uses less components, and the primary goal is to serve the music, not the technology.

I am not a circuit designer, nor will I ever be, but after 27 years in audio, I am beginning to understand what constitutes good design.

Rgds
 
Something in favor of SE is that more conductor material is used. Let's say a 1000$ SE cable may have a single 14 AWG silver conductor, this same 1000$ cable in balanced XLR version will have the same amount of cable mass, but split over 2 conductors, so two conductors of only 17 AWG each.

Eh? Sorry, I don't get this part, but I agree on the rest!
 
Flyer. This is a great write up. I am very pleased that you have finally found your grail. I thought that you also tested a Nagra in your shoot out.

For vinyl on the EVO 202, I guess that you know where to go:).

On RCA versus SE, all the tests I perfomed in my set up have always brought me back to SE.
 
Eh? Sorry, I don't get this part, but I agree on the rest!

Let me put it this way. Do you think a 1000$ XLR cable will have twice the amount of conductor wire than the RCA version of that same cable model, which almost always retails at the same price point?
 
Lamm L2 reference; very nice with sweet highs, good bass, very engaging but features only single ended connections and single ended means (mostly) loss of detail and (hence) less 3D-imaging. I wasn’t willing to agree with those drawbacks.
I would beg to disagree with this quote. Vladimir Lamm will never use a "true" balanced connection. He does use XLR outputs from his preamps to XLR inputs to his amps but these are pseudobalanced with one of the pins shorted.

Not only Vladimir but so also many designers only use SE so I completely disagree with your post
 

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