Off axis response (1 Viewer)

[KyleGS]

I have a few questions about off axis repsonse that maybe you guys can help me with.

I'm about to build some DIY bookshleves.

What exactly dictates how well a tweeter or high freq driver will perform off-axis?

Due to my set-up in my living room I really need alot of dispersion.

How does a regular 1" tweeter stack up against a larger driver like the little 3in TB, an even larger full ranger like a 4.5in wideband, a small horn (45x45 deg), etc in terms of off axis response.
Can these generally be ranked in terms of off axis repsonse?

Thanks for any help

 

[ThomasW]

The basics are .............

For treble the smaller the diameter of the radiating element, the wider the dispersion.

This means that a 3" driver (even with a phase plug) reproducing HFE will have worse off axis dispersion than a 1" dome reproducting those same frequencies.

The width of the baffle also impacts this situation..

 

[KyleGS]

Thanks Thomas-

If you don't mind- how would the baffle affect the dispersion?

 

[michael.e]

go to the FRD page( i cant post links yet)

Cheers

 

[ThomasW]

Here's the FRD link
http://www.pvconsultants.com/audio/d...ownloadbds.htm