GS-3 is an acoustic guitar onboard preamp that has 4 band EQ, Phase Reversal and a built-in chromatic tuner with high definition LCD display. It has Low Battery alert to remind you to change new batteries. GS-3 is easy to be installed into a guitar.

PARAMETERS:

• Features: 4 band EQ / chromatic tuner / phase
• Input impedance: 10MΩ
• Frequency Response: 20Hz-20kHz
• Control Range: Bass ±12dB at 100Hz / Middle ±12dB at 800Hz / Treble ±12dB at 6kHz / Presence ±12dB at 10kHz
• Pick-up: piezo ceramic pick-up
• Output jack: 6.35mm
• Low battery check LED
• Battery life: over 100 hours
• Power supply: 9V alkaline battery
• Dimensions: 92mm(L) x 55mm(W)