Revel are getting harder to get hold of in the UK. Only Superfi out of the national chains seem to stock them (30% off the M16’s at the moment). I bought a pair of ex-display M16‘s from Richer Sounds for £380 ($525) last week. I wasn’t planning to ‘up grade’, but it was way too good a deal to pass up. I was curious to see how they would compare to my PMC Twenty5 21’s (RRP £2000 when they were the current model).
Subjective impressions are as good as I’d hoped. The PMC’s are going!
I'm trying to read the vertical dispersion results to understand how far ABOVE the tweeter axis one can listen without problems. (I use three of these along my front sound stage and since my display is at ear level, the center speaker sits lower than the left and right.)
I think my 20 degree angle is just on the borderline of introducing issues based on what I hear. But this graph would be definitive.....if I could figure out which gray line is which gray line....
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This graph appears to confirm that things get a little wonky between 2000 and 3000 (??) hz if one is sitting very far off the vertical axis?
View attachment 145065
I will be adding tilt to the speaker stand, which will put my ears closer to being on axis vertically.
I'm not sure, it seems like the response is already 2-3dB down at +/- 10 degrees. would not recommend sitting off vertical axis at all.
And for anyone needing some quick maths:
So 10ft away would put it at ~21” above tweeter.