Sonar 2 Specifications treble:6.5 KHz. bass:40 Hz. signal-to-noise ratio:-98dB.
Hohner Verdi 3 41 Piano Keys 120 Bass Keys 5 Treble Couplers 2 Bass Treble
Rosetti 5 Piano Couplers 2 Bass c ouplers 48 Bass 26 Keys GWO
Set of 2 Bass Drum Aluminum Anti-Rust Stable Bass Drum Legs Rubber Feet
Marinucci 120 bass accordion. treble couplers and 2 bass couplers
Antique Accordion or Squeezebox The Manifold 10 Keys 2 Bass Keys Made in Germany