Saturday, March 15, 2025

Eisenson's Revenge Chapter 99

Eisenson was the audio salesman and tinkerer who my friend George will never forgive for having an out-of-phase speaker system.

I myself have made so many major mistakes, often for weeks or months at a time, that you really do have to wonder.  Of course I believe that you can get an intoxicating effect, not to mention appreciation of music, or just plain old enjoyment out of a seriously out-of-whack sytem (as long as it doesn't sound extra harsh or annoying).  To deny that is to be a bit smug, I have always felt.  Also, one can't always be deploying one's inner audio engineer to ensure that all aspects of reproduction are technically correct.  Most of the time, one simply wants to enjoy.  I know Eisenson got great pleasure from the far reaches of the high frequency response, and perhaps when paying most attention to that he ignored the reduction in bass (or it was even helpful...).  It has always been my view that no one 'reproduction' is perfect, and many are good enough in one way or another to reveal some facet of the music with greater clarity.

Well in my latest mistake, I apparently had the subwoofers totally turned off since some experiment, perhaps written about here, from weeks ago.

I first noticed that when I selected the "movie" mode (which reduces bass in the periphery to make it less peaky there) it had little effect.  Then a week later I figured the exact cause of this discrepancy.  First I noticed one sub turned off (I remembered thinking "I'll notice this right away") and also the DAC muted (I had to do that for the other channel).  I was doing some kind of impulse test, perhaps before the first recent LP recording a few weeks ago).

My crossover is at 125 Hz, so a sub loss cuts out quite a bit of real bass.  But it all sounded fine.  (I wasn't doing much if any serious listening, the room has mostly been set up for showing movies and I've been to lazy to move the listening chair into the center.  But I might have listened to an LP or two, thinking it sounded a bit dry.  And then I wondered why recordings sometimes sounded better on my kitchen system when I was mastering them than in my living room system where I was recording them.  All clues I ignored, until I didn't.


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