This is definitely not a double bass group BUT have a CD of some Handel trio sonatas which are combinations of
2 oboes and Basso continuo, or oboe, basson, contrabass and basso coninuo. First oboe is Heinz Holliger. It is a Denon CD out of Japan with all japanese writing inside so can't give much else but there is definietly some bass there.
Saint Saens' Basson Sonata will also give your system a fine work out on the bass side. There are a number of good ones available
2 oboes and Basso continuo, or oboe, basson, contrabass and basso coninuo. First oboe is Heinz Holliger. It is a Denon CD out of Japan with all japanese writing inside so can't give much else but there is definietly some bass there.
Saint Saens' Basson Sonata will also give your system a fine work out on the bass side. There are a number of good ones available