Open Baffle + Bass Reflex HYBRID

[perrymarshall]

Close to the rear wall is not the end of the world, but it affects all frequencies that are emitted from the back side. All my dipole designs have rear firing tweeters.

 

[perrymarshall]

The recording studio above has them within 2 feet of the rear wall and they still sound good.

 

[perrymarshall]

It does help that below 150hz the Flanagangsters are no longer dipoles but monopoles. I think a rear wall that close in a pure dipole only works against you.

 

[jameshillj]

... something to do with the benefits of >10msec delay of indirect/reflected diffusion, yes?

 

[perrymarshall]

I think it sounds better if reflections come 6-10msec later as opposed to only 3-4.

 

[GM]

When I lived in Paraguay, late sixties, they used to sell an US made insecticide branded "Real Kill" a fat brown glass bottle with a spray pump on top, never ever saw again such a fulmineous death of any bug, ant, mosquito, spider, roaches, everything. Later I learn It contained DDT, so not an isecticide but kind of a carbon based life forms eliminator😊

The brand and a variant of the original is still a major 'player' and my fave. Re DDT, my 1952 house came with a ~half full gallon glass jug of the industrial DDT rich brown syrup with a huge skull and crossbones embossed on it. Can't legally own/use it nor dispose of it, so to pay the U.S. Environmental Protection Agency (EPA) $1100 back in '77 to take it away.