Steinmusic Blue Suns Signature are the latest development of the Steinmusic Harmonizer System, and have a very strong impact regarding good room acoustics. They work best in combination with the Harmonizers, but already used alone are a very powerful tool. Blue Suns will give good results directly when mounted in a room. However the perfect placement will improve things in a significant amount, so that we suggest taking some time to optimize the placement. We suggest the use of some good recordings of unamplified instruments and natural voices, as here it is easiest to hear when the positions and proportions of singers and instruments gets more realistic.