HzN EQ-07 – 7 Band Ekolizer 7 band equalizer for electric guitar. (BOSS GE-7 species) HzN EQ-07 Our new design for Electric Guitar is the 7 Band equalizer. * Low noise built-in preamplifier, volume control, * 7 band equalizer between 100 Hz and 6.4 KHz, * Easy installation on electric guitar with 8 x 4 cm size, * Long battery life with 3.3mA current consumption, * Longer service life with high-quality translucent pots.