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In Reply to: RE: Please post your impressions, when you feel it's time. I'm really happy with mine. posted by morricab on July 21, 2015 at 02:48:42
.... "sweet and delicate", and more about "big, bold and powerful".
Suits the music I listen to perfectly, but I can see why someone else would prefer other designs, supplying more of the traditional "tube magic" sound.
As far as heat - 4 of those heat monsters is as many as I would tolerate in my smallish 16' x 11' listening room, with low ceiling too (basement). Looks like yours are run more conservatively, being rated at 35 Wpc.
Follow Ups:
Well, I took some time to listen to one of my better recorded Jazz records (Korean singer, album called Lento on ACT label) and the transparency through the upper mids of the new amps is stunning. Very pure sounding with just a light dusting of sweetness. Not quite a projected as the JJ 322 but still very palpable and alive there. The upper highs are slightly subdued but interestingly it is not a dark sound like one would usually get with dynamically constricted highs. This suggests that there is not the constriction just a generally lower level of output. So far I am liking quite a bit what I hear and it is clearly perfect for long listening sessions...it makes you want to dig out more music rather than turn them off. The JJ is more "lit up" but I think that is what really well designed 300B amps do best. Bass texture is perhaps still slightly better with the JJ but the power in the bass is clearly in the court of the new amp (it is a german brand Wall Audio and the model is the Opus M50). Not that the JJ felt lightweight but it doesn't have the Gravitas. It could be also due to transformer types. The JJ is using very thin laminate double "C" cores with grain oriented steel, which the M50s use EI types with very thin laminates of Ni and Co alloy. Some of the fullness from the new amps could be some onset of core saturation giving a bit of harmonic "fullness". The JJs OPTs are so oversized and of the core type that saturation is unlikely and you really hear nice bass texture.
I think despite the projection of the 300B the tonal color of the Opus M50 is more right through the mids and it is utterly grainless for both amps. Short of spending Kondo money I don't think I can do a whole lot better (preamp evalautions are still ongoing).
Morri,
there is not much on the internet about the Opus M50 , are they selling direct ..? Lots of dollars for so few watts .. 12K a pr ..
Well, you and I both know that its the quality of the watts that counts. If I wanted just lots of watts I would just get a big cheap profi amp and be done with it.
Not direct, there are a few dealers, almost all in Germany. It is a small German company even though it has been in business for a long time it stayed small. Nice products though...
This guy who did the report, Kim Key, picked it as a most wanted item for their site for 2014 even before he has finished the proper review. This is a guy who has heard the best of tubes (Kondo, Thrax etc. etc.). They are priced a bit more sensibly in Germany and I got mine as show demo models.
12K a Pr ...
Edits: 07/22/15
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