BillFitzmaurice.info

It's not going to work. First off, to have enough output to keep up with the SLA using direct radiating woofers you'd need at least two eights. They would have to be subwoofer drivers. The Goldwood GW-408D is not a subwoofer. Then there's the matter of space loading. You're not going to get it havin...

Baltic Birch comes from the Baltic states. One of them is Russia, so that has put a crimp in the supply chain.

Warp is also a matter of the number of plies. Even lauan won't warp, if it's nine ply. If you can't get nine ply half inch just follow the techniques shown in the plans and you'll be OK. I devised those techniques to account for that fact that most plywood does warp. It takes time to make and use gu...

Poplar is very good, with lots of plies and minimum weight. But it's not easy to find. Where bending is concerned that's also a matter of plies, you only want three. There are plywoods made for bending, they have the grain on the same axis with all the plies, but in the thicknesses we use they're no...

Softwoods are OK if they are at least 5 ply. Most 1/2" softwoods are only 4 ply.

Fir and spruce are softwoods.

You could make your own laminated 2x4s from 3/4" plywood. Use a circular saw sled to insure straight cuts.

Radian wrote: ↑Tue Nov 22, 2022 11:06 am It rolls off, but the driver never “unloads”.

+1. Bass reflex speakers unload below the tuning frequency, where the port output and cone output cancel each other. Sealed rear chamber speakers don't. The THT has a sealed rear chamber.

The Chinese horns look good, too bad there doesn't seem to be a domestic source for the,.

The midbass sensitivity is on the low side, but otherwise it looks OK. OTOH I don't see anything special about them.

Do it outdoors to remove the room from the result, on axis and 45 degrees off-axis.

It's in the panel jig plans.

Squirrels were food for the masses in all of the wooded States and Canada. Every rural home had at least two weapons, usually a shotgun for wild fowl and a small bore rifle. It's one reason why during the Revolution and War of 1812 the American irregulars/militia were superior to the British regular...

You combine the signals at the input, not the output. However, below 100Hz there's no such thing as stereo, it's summed to mono in the studio.