ZA 5.5t MTMMM impedance chart, or other 2.5 ways

[taj]

Is this available? Anyone have a link?
And /or comments on impedance relative to 2.5 way designs in general would be appreciated- thanks

[bmaupin]

http://www.zaphaudio.com/ZA5/ZA5.5tt-FR.gif

Impedance dips to around 5 ohms near 2.8kHz. MTMMM 2.5 way is wired series / parallel being like a single woofer - around 8 ohms.

TMM 2.5 ways use two 8 ohm drivers and end up with a 4 ohm nominal impedance.