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Ohm Walsh Micro Talls: who's actually heard 'em?

Hi,

I'd love to hear the impressions of people who've actually spent some time with these speakers to share their sense of their plusses and minuses. Mapman here on Audiogon is a big fan, and has shared lots on them, but I'm wondering who else might be familiar with them.
rebbi
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mapman's avatar
mapman
22,737 posts
 
Tvad,

Have you found the better clarity and control extends into the upper frequency ranges as well?

Any downsides that you can identify to go along with the benefits?

This is something I'd really like to test out in my system.
mapman's avatar
mapman
22,737 posts
 
Tvad,

One other question.

Certainly a low pre-amp output impedance seems to make it easier to match more amplifier input impedances, but I wonder is it the absolute value of the preamp output impedance, or the ratio or magnitude of amp input impedance to pre-amp output impedance in the end that matters?
mapman's avatar
mapman
22,737 posts
 
Here's an interesting thread on the impedance matching issue:

http://forum.audiogon.com/cgi-bin/fr.pl?aamps&1227661419&openflup&12&4#12

The consensus here seems to be a 10:1 amp input/pre-amp out ratio is a good target. Also that actual output impedances of pre-amps is higher at lower frequencies with can negatively impact bass response.
mapman's avatar
mapman
22,737 posts
 
So for example, my case, with the ARC sp16 premap output impedance being 20K ohm, I would want an amp in the 200K input impedance range (my A3CR is only 31K).

Also, interconnects factor into the equation in regards to impedance loads presented to the pre-amp, so things get mor complicated again here.

Of the SS amps I've considered, the newer Bel Canto Ref1000m would be the best choice for me apparently, but pricey. I'll be looking to find some other options and will not rule out tube amps necessarily either.
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