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In the Forum: Playback Listening
In the Thread: Remedies the Beauty
Post Subject: Phase LinearityPosted by Edgar= on: 11/7/2022
Not Amplitude. It's the rock solid phase linearity. It feels like a brick wall all the way up and down. I haven't looked at any graphs and haven't measured anything but that is my guess. 
There is no question of the great tone of vintage Tannoy but also it shines from a point source perspective IMO. I assume there is a relationship between its phase linearity and its duel concentricity.

N-set, I use a Yamaha DSP-492 for reverb injection.

Regarding the passive radiator situation. I did a slo-mo recording of the drivers with a sweep from 1hz up to 200. The PR is out of phase from 1hz up to about 55hz and then appears to lock on and is in phase from there up. 

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