What are these speakers that came with my home worth?

What model are the Velodyne subwoofers? Should be printed on the metal plate on the back of the unit such as Digital Drive or Digital Drive Plus.

Veladyne subs are pretty much out dated vs Svs,rel, or JL audio
the speaker system go on Audiogon blue book to get a idea 
which is pretty close roughly 40% of the retail if you are lucky 
for they are not in high demand or even made any more that I am aware of .
i sold audio for a number of  years  and just telling you a true perspective 
just look online at other speakers for sale .rarelydoes any used speaker command even 50% of new price and the older it is the goes down ,
as well as if it is no longer made  ,something to keep in mind when trying to sell,plus original packaging , or local pickup only shipping is very expensive today.

When new everything maybe around $15k 
for everything maybe $6 k on a good day .