MEH to Replace Mid Tops

[XL360]

Hello,

Last Summer I currently built the following stack.

Mid Top - selenium Pas3Ma1 - x2 HP 326HZ
Kicks - Cubo Kick - x2 HP 120HZ LP 210 HZ
Subs - MHB 46x2 HP 30/40HZ LP 80 HZ


I am looking to replace my Mid Top With a MEH Synergy Horn Type. This Horn will basically remove the needs for my kicks. But I want to keep them.

should I just keep the kicks and double up in that 150-250hz range? Or should I try and structure the MEH with a HP around 300HZ and then the Crossover in the MEH to be higher around the 800/850 Range. I would not have ports if I go with option #2.

from reading If I get rid of the 150-250hz range in the MEH, then the horn does not get any loading? (Is this true?) and the MEH design becomes pointless.

Thoughts?

Thanks,

Cole

 

[GM]

No, a waveguide (conical, parabolic) must be acoustically 1.0 WL long to load all the way down to Fc, so the reality is that any 'reasonable' size MEH is first & foremost a tweeter horn. 😉

 

[XL360]

Thanks!

Do you have any input on the possible idea to remove the ports and HP the MEH at 350Hz?

 

[GM]

You're welcome! Again, remove the mids and it's a tweeter horn, so short of making a huge 350 Hz conical horn, no. An expo would be smaller, but still very large, though in each case its length can be truncated and driven with a suitable wide range prosound mids driver.