Mr Evil said:The point of a Zobel network on the amp's output is to provide a low impedance termination for high frequencies, which increases stability. A Zobel in a speaker can't do that because it's seen through the resistance+inductance of the speaker cable.
Of course you might not need a Zobel, but it can't hurt to leave room for one, just in case.
Russ White said:OK, I tweaked the layout a little and etched the boards. I will build the amp tonight. Here is the latest layout: