Impdence Question

Duke - I like your example wit divided coil, but I think that the difference is that EMF of both coils reacts with the speaker membrane motion while in case of two separate speakers it doesn't - even if they are driven with the same back EMF (same signal). What might happen is that total EMF voltage will be sum of them but impedance each of them sees will be 4 ohm and not sub-ohm amp's output. Two separate speaker coils are just not the same as one coil.

My practical experience tells me that woofers in series have "wooly" sound, but it was long long time ago and my memory is fuzzy. I tried to find something more on the internet to support my point but found instead that opinions are divided. Sweetwater (music store) FAQ agrees with your position - I have to thing about it.

Oops - that should have been "Kijanki". Sorry I butchered your moniker.

Duke

Oops - should be "I have to think about it" - my english is bad but not that bad.

Kijanki, I gotta tip my hat to you on your openness and honesty in acknowledging that you have found at least one source on the internet that does not agree with your position. Most people would not have posted that, being more interested in "winning".

Best regards.

Duke

Duke - I'm leaning toward your view. I think that my previous experience with in-series woofer connection might have to do with other factors. One of them is doubling inductance in the circuit while another is getting stronger resonanses since they might be slightly different, power being proportional to square of the increased voltage on the speaker.

As for "winning" - I have met here many "scientists" with extremely high credentials that prevented them from learning.