NEDSP1062-KBD Kenwood SP-23 Installation Guide - Third party installation information on how to install the bhi NEDSP1062-KBD amplified DSP noise cancelling module inside the Kenwood SP-23 extension speaker to give you superb DSP noise cancelling and clear speech!
Third party information on how to install the bhi NEDSP1062-KBD inside the Ten Tec 307B