Finding (calculating?) speaker and amp impedance

I'm starting to understand why speakers with high efficiency and perhaps more importantly a flat impedance curve work well with tube amps.

If not published by the vendor/manufacturer, is there a way to determine the impedance curve from the specs that are provided?

Also, I have a pair of Magnepans that need high current amplification.

Is there a way to determine the current of an amplifier from vendor/manufacturer provided specs?

Thanks everyone!

hleeid01-06-2023 4:35am

carlsbad Details Discussions Posts This discussion 1,551 posts 01-06-2023 at 06:02pm Copy Comment URL Report Comment Edit Delete It is a measured parameter. The speaker designer needs to have this as a priority in their design. One speaker designer who does a great job with flat impedance/response and phase angle is Eric Alexander.
carlsbad Details Discussions Posts This discussion 1,551 posts 01-06-2023 at 11:45pm Copy Comment URL Report Comment Edit Delete @asctim Don’t assume everyone that puts their name on a product is above average intelligence.