Another directivity modifier. Works well but to expensive. One can DIY it I guess.

I have 2 EVM12-L that I bought used.  One's a lot brighter than the other and technically sounds more 'right'.  The difference is quite large, and I wonder if the dark one is damaged, but it seems to have more mojo than the bright one.
Haven't been able to decide which is the clear winner.  They both record well.  I've used the brighter one live a few times and it sounds a bit hard at live volumes.  Sounds better to me at bedroom volume.  I'm going to try the dark one live and try to decide on one or other to use in combination with my G12-65.   (2 EVM's is too much for an old guy to schlepp.)
The G12-65 is light weight, plus it has a more organic sound than the EV's. I like it a lot.
The only reason I decided to try the EV's was to get more headroom.

Very interesting Mr. Fabulous, but if you read carefully Jay Mitchell’s explanation of speaker directivity you will realise that Weber and Tayden type beam blockers don’t work. 
The effect you hear with your “beam blockers” really is a comb filtering (Hi frequency phase cancellation) which is bad for pure guitar tone.
But on the other hand – if you like it…..