Quote:
Originally Posted by
ginetto61
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Hi and thanks a lot for the very valuable explanations and advice.
But i must have misunderstood. I thought that waveguides have normal shapes. Instead is the horn in the JBLs that is funny looking.
Maybe it works wonderfully but the shape is weird indeed.
My understanding is that speakers with controlled and limited dispersion should be easier to place in a normal room.
There will be less reflections of sound. And also the efficiency goes up, also a nice thing.
And i see that waveguides are very popular, like in the JBL of the thread.
I can live very well with a limited listening sweet spot. I listen alone to music.
I see. Their shape is the result of a calculation.
I do not know. I still do not like things that are not circular and symmetrical.
I agree it is more a matter of look.
Thanks again, gino
sweetspot will be wider with a waveguide.
see here, same tweeter, bottom one with the waveguide mounted. see top octave.
measurements:
Quote:
Measurements were done on a 55 x 75 cm cm baffle with tweeter placed 30 cm from top. Measuring distance 0.5 meter at 0, 10, 20 and 30 deg. Input normalised for 2.8V/1m. 1/12 octave smoothing applied to all graphs