FM Notch Filter with Low Noise Amplifier; Gain 20 dB and Operation to – GPIO LABS
BBE Acoustimax Effects Pedal
BBE Acoustimax Acoustic Guitar Preamp | zZounds
BBE Acousti-Max (Studio quality acoustic instrument preamp in a stomp box with notch filter, 3 band EQ with sweepable mids, D.I. and full featured Sonic Maximizer) - Power Amplifier - Media Capital,
BBE Sound ACOUSTIMAX User manual : Free Download, Borrow, and Streaming : Internet Archive
BBE Sonic Sweet – Thomann United States
MOVED TO AUCTION SITE Audioarts Engineering 1500B Tunable Notch Filter/Feedback Suppressor | Reverb