The GEB-7 is a seven-band equalizer created specifically for the frequency range of the electric bass. Since the frequency range extends down to 50Hz, the GEB-7 is also great for adjusting depth and bottom end of an upright bass with pickups.
50Hz to 10kHz frequency range specifically designed for bass
Full range response, even for five- and six-string basses
Can be used as a "boost" or "cut" pedal using the level control knob
Great for eletric-acoustic bass applications
AC adaptor or 9V battery operation
BOSS five-year warranty
Nominal Input Level-20 dBuInput Impedance1 M ohmNominal Output Level-20 dBuOutput Impedance1 k ohmRecommended Load Impedance10 k ohm or greaterBypassBuffered bypassControlsLevel Control knob
Equalizer Control knob
50, 120, 400, 500, 800, 4.5 k, 10 kHz
Pedal switchIndicatorCHECK indicator (Serves also as battery check indicator)ConnectorsINPUT jack: 1/4-inch phone type
OUTPUT jack: 1/4-inch phone type
DC IN jackPower SupplyCarbon-zinc battery (9 V, 6F22)
Alkaline battery (9 V, 6LR61)
AC adaptor (PSA series: sold separately)Current Draw16 mAExpected battery life under continuous useCarbon: Approx. 16.0 hours
Alkaline: Approx. 28.5 hours
*These figures will vary depending on the actual conditions of use.AccessoriesOwner's Manual
Leaflet ("USING THE UNIT SAFELY," "IMPORTANT NOTES," and "Information")
Carbon-zinc battery (9 V, 6F22)Option (sold separately)AC adaptor: PSA seriesSIZE AND WEIGHTWidth73 mm
2-7/8 inchesDepth129 mm
5-1/8 inchesHeight59 mm
2-3/8 inchesWeight (including battery)440 g
1 lb