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In Reply to: I have to disagree posted by Jonathan on April 28, 2002 at 10:15:23:
I heard the Tenor amps driving Diapason speakers from a Jena Labs-modified Sony XA777ES source at the last CES/THE show. In comparison with other systems at the show, this system had recessed mid-bass but good vocal reproduction. I did not record any comments about the treble, so it was neither obviously shrill nor especially good in this audition.My approach at the show was to play the same cuts from my copy of "Cachao Master Sessions Volume 1" (Crescent Moon/Epic EK64320, 1994) at all demonstrations I found interesting. I almost drove Mark crazy, but at least I had a common denominator for all my impressions. Show conditions are notoriously poor, but a direct comparison can bring out obvious tonal differences.
My own setup, with MA-1s driving the panel midrange and ribbon tweeter sections of Magnepan MG-20s, provides the cleanest and most realistic treble of any stereo system I've ever heard. It is hard for me to believe the MA-2s, which are basically scaled-up versions of MA-1s, could have a characteristic shrill treble. However, I did have treble problems when I lived in Phoenix, less than two miles from the commercial broadcasting transmitter battery on South Mountain.
Part of the cure then was to replace the stock power cord on the Theta Miles CD player with an NBS. Another part of the cure was to use a steel junction box and armored cable cord for the necessary power extension device into which the CD player and Atma-Sphere amps were plugged (even with a dedicated circuit, the wall was too far away in that room). Note the NBS power cords I also tried on the Atma-Sphere amps did not make a noticeable difference in that location: the stock cords worked just fine.
The final step in the cure was to buy a Wadia 861 CD player and move to Northern California, where we now live in a low RF area. The NBS cord in this location adds subtle detail to the Wadia presentation, but does not affect the treble balance.
I have no idea why Jonathan found the treble shrill with his MA-2s, but my point is tonal problems are not easy to resolve, and sometimes result from unexpected interactions or interferences.
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Follow Ups
- Re: I have to disagree - Al Sekela 11:12:44 04/28/02 (0)
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