The BOSS GE-7 Graphic Equaliser lets you shape your sound and eliminate frequencies causing feedback. 

Its seven band EQ ranges from 100Hz to 6.4kHz with a powerful 15dB boost/cut per band This lets you dial in a range of tones, letting you stand out from the mix when you want to, or even blend in with other instruments more effectively.

• Nominal Input Level: -20 dBu
• Input Impedance: 1 M ohms
• Nominal Output Level: -20 dBu
• Output Impedance: 1 k ohms
• Residual Noise Level: 1 k ohms
• Residual Noise Level: -100 dBu (IHF-A Weighted, Typ.)
• Variable Range Equalizer Control: +/- 15 dB, Level Control: +/- 15 dB
• Connectors
  • INPUT: Jack
  • OUTPUT: Jack
  • AC Adaptor: Jack (DC 9 V)
• Power Supply
  • DC 9 V
  • Dry Battery 9 V type (6F22/9 V)
  • AC Adaptor
  • Current Draw: 10 mA (DC 9 V)
• Accessories
  • Dry Battery 9 V type (6F22/9 V)
  • Option: AC Adaptor (PSA-Series)
• Size and Weight ( incl. battery )
  • Width: 73 mm 2-7/8 inches
  • Depth: 129 mm 5-1/8 inches
  • Height: 59 mm 2-3/8 inches
  • Weight: 0.5 kg 1 lbs.