Below are mp3 files of recordings we made of Cellos, both with and without the patented Bass Bar:
Nicolae Bistrita, no bass bar:
Nicolae Bistrita, with Bass Bar:
Simi Coni, no Bass Bar:
Simi Coni, with Bass Bar:
Sino Coetaneo, no Bass Bar:
Sino Coetaneo, with Bass Bar:
Gheorge Tirvana, no Bass Bar:
Gheorge Tirvana, with Bass Bar: