push pull in MR horn?

[rafaro]

Benefits of PP are known in subs but anything known about their use in Midrange horns. Presume two 6 to 10 inch drivers close together firing into a MR horn 80 Hx and up in freq

 

[tinitus]

in midrange ? you will notice phase issues form the two voice coils

sound from the back mounted driver easily reflects through front driver diaphragm
phase issues

 

[Thawach]

PP mr horn will has but waiting i build! lol if change this to BLH it's possible to be.

Thanks: ฝากรูป dictionary

 

[tinitus]

ah, I thought you meant isobaric pp, playing midrange

 

[Thawach]

wow! my old friend come here. tinitus when talk about the horn design, i often remember or imagine only has low freq. if push pull drivers install FLH i never think to get anything better from them.

 

[djk]

How high is 'and up'?

You could do it with the plenum (as per my PPSL) up to 800hz or so without much problem, or use a sloped plenum (like Electro-Voice did) with dual 15s up to 800hz or so.

If you did it the way of the M&K photo you could load the front firing driver into a phase plug, and mount the phase plug on the magnet of the other driver.

So, how high is up?

I have been meaning to try this with some 6-1/2" drivers (EV style slant plenum). This could mount to a big horn and just put a single wedge on the vertical faces between the plenums (look at bit like ax-heads).

 

[Thawach]

good idea ! djk use pp m und k mount with the big FH und put the rpg in it. but the plenum style we can use many more divers with it und mount it with FH. djk i ever heard the PP will be best for low freq but this design[mr] ill get anything from it.