The first S3 prototype is now complete.
The ports were shaped and bored out manually, the old fashioned way with a spade bit.
You can see plugged ports and a fair amount of bog:
The panels were all shifted closer together so that no filling was required around the throat. I started with a very small hole, then filed away with a circular file.
Ports were shaped with a chisel. I know what you are thinking - 'why not the dremel?' This way is faster. There is a particular chisel that is curved and I can shape a port like this in about the time it takes for me to find the dremel!
Drivers added. B&C compression driver inserted first for no particular reason. I've used spade connectors so there is no soldering.
S3 prototype - throat is shaped nicely and I found it's much quicker to get the shape when material only needs to be filed away - no bog! Time is critical. Why? Because I have a group who are now waiting for the flat pack that follows this prototype.
There are two stands included - this is so that I can securely sit it in both orientations for measurements. When this thing is two metres up in the air, safety matters!
Measurements currently in progress.