hi Mark
This is one of the 2 speaker cabinets I made for those 4 inch speakers. It was made out of old wardrobe chipboard panels, glued together with epoxy. The port is a piece of a vacuum cleaner pipe.
I have 2 lumps of foam from seat cushions in there to help damp the internal resonances.
The dimensions are internal measurements and the port is 120mm long. I may have got the dimensions on line, I cant remember for sure now.
For what they are, very simple, I cant fault them, I wondered if there was a speaker design tool, how they would come out in theory.
On a hot day with them turned up, you get a nice breeze from the front and the port. Not that you would really want to do that as they are very loud and it would hurt my ears.
Mike
This is one of the 2 speaker cabinets I made for those 4 inch speakers. It was made out of old wardrobe chipboard panels, glued together with epoxy. The port is a piece of a vacuum cleaner pipe.
I have 2 lumps of foam from seat cushions in there to help damp the internal resonances.
The dimensions are internal measurements and the port is 120mm long. I may have got the dimensions on line, I cant remember for sure now.
For what they are, very simple, I cant fault them, I wondered if there was a speaker design tool, how they would come out in theory.
On a hot day with them turned up, you get a nice breeze from the front and the port. Not that you would really want to do that as they are very loud and it would hurt my ears.
Mike
