MA 12P and MA Alpair 12 comparison

[classAfreak]

Hi gents - dear Mark Audio specialists,

can this work? A MA 12P in a DBR cabinet being built for a MA Alpair 12????

https://maybelle.com.vn/loa-bookshelf-toan-dai-markaudio-alpair-12p-pd137053.html


Regards Stefan

 

[Scottmoose]

If it's my old design (looks like it might be) then it was designed for the original Alpair 12; the 12P has different loading requirements so the alignment will not work as intended.

 

[planet10]

Definitely one of Scott’s designs (and my drawing). May 2010 the A12p was still to be released.

dave

 

[classAfreak]

Thx Scott and Dave - well that was my first thought, two drivers and such big difference in the Vas. How should that work?

Regards Stefan

 

[GM]

Easy to compare, just calc max flat BR 😉: Vb = 20*Vas*Qts^3.3, Fb = 0.42*Fs*Qts^-0.96