I realized a few people around here have LS50s and there isn't a readily available LS50 Spin so I figured I'd post one I found in a random study in AES. Thanks to @napilopez for directing me to VituixCAD so I could trace the original graphs and export the curves into REW for a proper scale and EQ capability. Anyway here's the recreated graphs in REW, I purposely left out the direct on-axis because I think it makes it easier to read and coaxials are usually best listened to off-axis, which is better represented by the Listening window.
It's already a very good speaker but it's obvious there is some excess energy around 750Hz and between 2-5k. Using the EQ function in REW, these filters will make the listening window more neutral. I've been using similar filters for awhile and it smooths the speaker out quite a bit, it also takes care of any brightness they can sometimes exhibit. Edited to update EQ, fixed 1.5k dip and changed 3.8k to -.2db based on listening tests.
It's already a very good speaker but it's obvious there is some excess energy around 750Hz and between 2-5k. Using the EQ function in REW, these filters will make the listening window more neutral. I've been using similar filters for awhile and it smooths the speaker out quite a bit, it also takes care of any brightness they can sometimes exhibit. Edited to update EQ, fixed 1.5k dip and changed 3.8k to -.2db based on listening tests.
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