Aiwa SX-WNSZ52 speakers

Speaker set from NSX-SZ52 Aiwa system - popular class all-in-one with 3 CD changer and double cassette deck with full logic control. From what I can find, priced in $25-$40 range at the moment as used.
Height: ~32cm, weight ~5kg.
Dust cover on woofer is missing on this photo.

 Front plastic cover is glued to black plastic frame that is holding mid-band speaker - glue is applied on 6 plastic pegs. This is some kind of elastic, rubber-like glue. With some luck front could be removed without damages, although glue is still pretty strong - opening it I've damaged chipboard with screwdriver in few places at the edges and broken one of the pegs.

 Twitter is just a piezo speaker.

 8A-NS8-604-01 midrange speaker, 8 Ohms

 8Z-NS7-602-01 woofer, 6 Ohms

 As speaker set is labeled as "BUILT-IN POWERED SUBWOOFER" I though that it might have built-in amplifier at least for low band speaker, but speaker are just wired directly. I had to open it anyway as I've got it as junk with cables cut off point-blank at the back.