I can't seem to understand the difference of the preferred resistor network vs the straight attenuation. I understand that the speaker load will not be matched to what the Amp desires but wouldn't the crossing of the + and - terminals cause some interference? I guess since it is a single ended design it doesn't matter?
Would there be a difference in SQ if both ways had the same attenuation?
Adding a resistor in parallel is almost like adding another speaker at the same outputs, so you are not adding any noise just additional load at the speaker outputs in this scenario.