Info on Soundmates micro 10

I recently purchased a pair of Soundmates Micro 10 speakers made at 796 29th Avenue Southeast Minneapolis Minnesota, USA.

Does anyone know anything about them there is no impedance or power ratings on them. and the connections are on the bottom of the speaker not the rear. They do sound very good Im driving them with a Perreaux 3000B MOSFET power amp through a DJW Laria valve pre amp. both designed and build in New Zealand.

I have loaded some photos of the speakers here

any info most welcome