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Sound update - long.

Posted by sbrians (A) on September 20, 2017 at 21:03:31

In Reply to: RE: Time alignment posted by Barry on September 20, 2017 at 19:10:34:

Thanks.
Much reading there, which I will not do now (spend all day on a computer). But one day I will. It looks like a great source of information.

My rambling notes after a couple of hours of listening after all of my adjustments were done, for now"
What I do know is that my frequency response as measured w/ a Radio Shack meter is now remarkably flat from 100 Hz down to ~20 (I have not measured lower than 20 Hz at this point). My Maggie woofers have a huge ~12 dB hump near 200 Hz, but the 80 Hz high pass crossover has allowed my to flatten out the huge 60 Hz peak (and lower) that I had before. Sub xover set to 30 Hz, 12 dB/octave, same as high pass filter slope, as Picture guy mentioned.
My sub phase is now lowered from ~ 51 deg. to ~40 deg. (based on near-field and far-field adjusting by ear and luckily, both near the speakers, and at listening position, the best phase on the sub coincides for both locations), once I put the high pass analog crossover in series with my Maggie woofers. I believe that my ear-near-speaker/sub test checks for timing alignment, and my listening position test checks for phase alignment. I have not done the impulse test yet.

Since I had the meter and test CD out this week, I also radically changed my mid/tweeter level to be closer to the meter, rather than to my taste. That means that I've put the highs way higher than I have had for years. But then, I changed my 1.5 Ohm resistor in my Ribbons to 3 Ohms (all that I had handy) and now can hear the midrange driver. Probably another day I will change that 3 Ohm to 2 Ohms, which I have to remove from my 1.6s.

So, I am evaluating the sound like it is now, fairly flat freq. response on the meter (other than the huge ~200 Hz hump). I am trying to get used to hearing the 3.3 midrange driver before I tone it back down. At this point, it (adding new sub, removing lows from Maggies, bumping highs up) is not like some things where it is a clear and instant improvement. But understanding words in songs and many other sounds and instruments that I did not know were on recordings is greatly improved. It is not yet clear whether the system is as "fun" as before. Last night, I did enjoy Keiko Matsui's Dream Walk CD more than I have ever before. Adding the sub has not increased the low ~25 Hz sounds (I can't really hear lower, only feel), since my 3.3s had exaggerated the bass before and now it is flat response. But the bottom is more solid. And I hope to have better infrasonics (I tell people that I got the sub for a musical body massage). My goal is not "objective", measured accuracy (which I believe can be un-enjoyable), but fun music.

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