DBs are confusing to me, I was thinking the amp was in db's and the received signal was in dbm and that there were 1000 dbm in 1db
Here is the link you mentioned for the amp:
http://otsecure.net/weeks/InstallMat...Amplifiers.pdf
My model #is SV-A15PRS. Can get them pretty reasonable but Im pretty sure they are a quality amp.