[G.Michael]

SOLD

Ah, more DIY goodness.  Boards are new-in-box.  Leftovers from a couple ClassT amp builds. 
Good quality.  These boards do well on both battery (24VDC) and on linear supplies.

Here's a review of the boards: https://www.tnt-audio.com/ampli/helder_sta508_e.html

$40 for the pair, shipping included, to the 48 States. 

[G.Michael]

Price lowered.  And a spring-weather BUMP.