Any info on this Amp ?? Iceilings D4100

I bought this to give my Wolverine AB amps a home.
Has anyone either heard or have pictures of this amp ?
Google has NOTHING !
It seems to be SMPS powered , the AC input is 100-240V 680W ... no selector for voltage.
It is class AB - the heatsinks are large 3U , much more than would be needed for class D.
It is a 70V commercial whole building amp with 4 channels. Output trafo's are in there.
Bought it for $28 on Ebay , l am just curious about what other E-waste I will get within it.
PS - it also seems to be sporting a DAC (digital in)
OS
 

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That seem to be in the same family , but with class D 30W/ 70V outputs.
TR-230 has the same "Digital " jack on the rear panel.
Cross searching leads me back to - Armstrong World Industries, Inc.
Thanks... I just want those big heatsinks (and case).
OS
 
BTW , ebay has 2 more of these for 28$.
I am nearly sure the heatsinks will be Badger/Wolverine - perfect !!
Since it has those large heatsinks , a 500-600VA trafo might also be inside.
Heatsinks are 125mm X 350mm ....
Iceilings started selling audio in 2002. With a power factor of .8 ... 680W = @ 500VA trafo.
Audio SMPS's ware rare in 2002. Commercial would also most likely be a Toroid , not a EI.

OS