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  Dynamics and Microdynamics
Perhaps this isn't an amplifier, but a speaker issue instead (or both). Here is my observation:

I recently listened to the same piece of music (Chopin, Etudes, Pollini, Deutsche Grammophon 431221) on two different systems (in the same room). System A: VTL MB-450 monoblocks in tetrode mode, driving B&W Nautilus 802. System B: Classe Delta CA M-400 monoblocks driving Wilson Watt/Puppy 7. Source, pre-amp, and cabling was the same.

Now here's what was strange: While the Classe/Wilson system was clearly better at microdynamics (ferreting out the hidden gems of melodical lines within the overall structure of the pieces), the VTL/B&W system did a better job at conveying the dynamical punches (from ebbing to swelling, up and down the tonal scale), i.e., the guts of the musical structure. From memory, when I listened to these pieces live, both mico-and macrodynamics were clearly audible, not just one or the other.

Also, system A sounded a little thinner, system B a little warmer. So my question: Any explanation for this? While I understand that the refinement you get with an accurate representation of microdynamics is system-dependent (and the Watt/Puppys are more expensive speakers than the Nautilus 802), both systems should have been able to get the macrodynamics right, or not? Or does this have anything to do with tube (VTL) vs solid-state (Classe) technologies?

Thanks for any insights.
Hgabert  (Threads | Answers | This Thread)

10-28-04
  Responses (1-14 of 14)
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10-28-04: Hgabert
Correction:

In the last paragraph, I meant to say that system A (VTL/B&W)sounded a little warmer, system B (Classe/Wilson) sounded a little thinner. Sorry.

Hgabert  (Threads | Answers | This Thread)


10-28-04   I think the obvious answer (but perhaps not the correct one) ...   Newbee

10-28-04   It has more to do with the power delivery to the active devi ...   Audioengr

10-28-04   Have you tried the classe/b&w setup together?   Brianmgrarcom

10-28-04: Hgabert
I will try that setup, and the other one (VTL/Wilson), too. Do you expect the Class/B&W setup do come closer to the real thing, i.e., conveying both micro- and macrodynamics well? And if so, why?

I guess there is a lot of random luck involved, mixing and matching components.

Hgabert  (Threads | Answers | This Thread)


10-28-04   I suggest that due to both those being under the b&w umbrell ...   Brianmgrarcom

10-29-04   Yes it does have to do with the tubes.. the wilson's sound a ...   Cytocycle

10-29-04   Hgabert, to follow up on my 'short' response, b&w owns class ...   Brianmgrarcom

10-29-04: Hgabert
I've heard very good things about the Lamms. But do the Lamm M1.1's (at 100 watts) really have enough power? I can't even run the VTL 450's in triode mode because with 220 watts (!) breakup occurs (at reasonable listening levels). So I'm somewhat skeptical, but I'm open to any explanations why 100 Lamm watts should be sufficient.
Hgabert  (Threads | Answers | This Thread)


10-29-04   You didn't mention which preamps or source were used. assum ...   Rhljazz

10-29-04: Hgabert
Source was Mark Levinson 390s (CD), preamp was Mark Levinson 380s, interconnects and speaker cables were all Transparent.

You're probably right about the missing spikes.

Hgabert  (Threads | Answers | This Thread)


11-03-04   The wilsons, in their earlier incarnations, leaned (no pun i ...   Mphnkns

11-25-04   I have heard the 390, 380, and transparent cables together, ...   Howie

12-03-04: Hgabert
I'm not sure 100 watts is enough. Both Wilson and B&W Nautilus speakers have lowish impedance curves in the 30-80 hz range, and both are rated at 90 db efficiency (or thereabouts). Any source material with wide dynamic swings from ppp to fff will have problems with these speakers (if the amp can only put out 100 watts RMS or less).

Thanks for your insights. I agree Classe is a little on the cool side. Perhaps their Omega line is "fuller" sounding, but I haven't heard it.

Hgabert  (Threads | Answers | This Thread)



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