speaker impedance

[J M Fahey]

That's the point.
Make it either 8 or 16 (or even 4) ohms ... fixed value and fill the gap, of course.
Even so, 16 sounds better than 8 and 8 better than 4

I'll let you folks imagine why

[Chuck H]

That's the point.
Make it either 8 or 16 (or even 4) ohms ... fixed value and fill the gap, of course.
Even so, 16 sounds better than 8 and 8 better than 4

I'll let you folks imagine why

I'll guess that's because higher inductance for standardized designs damps more of the the hashy HF we DON'T want to hear?

[loudthud]

I could be wrong here but I think most voice coils have two or four layers. This means you don't have to loop one end of the wire through the gap. Both ends of the wire are on the side of the coil that attaches to the cone. I have seen a Peavey speaker where they actually did this, there was a special place in the magnetic gap where the gap was widened to allow this.

There was a speaker in the 50's that had two voice coils, the University C15W. Each coil was about 8 Ohms, run them in parallel for 4 Ohms or series for 16 Ohms. If you only use one coil, efficiency was lower and power capacity was half.