EBTech 2-Channel Hum Eliminator for A/C audio systems - guitar, bass, recording

Ebtech HE-2-XLR 2-Channel Hum Eliminator

EBTECH 2-Channel Line Level Shifter XLR

EBTECH HUM ELIMINATOR 2 CHANNEL (NYG104)

DBX EQ Enable, Insert, Low Cut, Phantom Power, +4 dBu/-10 dBV Switch for 586

Ebtech HE-2-XLR 2-Channel Hum Eliminator USA

Ebtech Hum Eliminator 1/4 TRS Jacks 2-Channel Used 218

Electro-Harmonix Small Stone, Large Body, Phase Shifter, Russia, Vintage Pedal