3 band parametric eq

3-Band Acoustic Guitar Tone and Volume Amplifier EQ Equalizer Preamp Piezo Pickup Tuner

Guitar Pickup Classical Guitar Pickup Vibration Pickup BT Accompaniment Resonance Pickup 3-band EQ

MIX-400 Professional 6-Channel Audio Mixer Mixing Console 3-Band EQ with Reverb Delay Effects +48V

JOYO EQ-MP3 3-Band EQ Equalizer System Acoustic Guitar Preamp EQ Equalizer Piezo Pickup LCD Tuner

4-channel Mixing Console & Aux Paths Plus Effects Processor Digital Audio Mixer 3-band EQ Built-in

DJ Mixer 5ch BPM Equipped with 32bit Processing 3 Band EQ DDM4000 FX/Auto Counter/Sampler

Donner Mini Guitar Amplifier 5W Rechargeable with 3 Band EQ Tabletop Compact Lightweight Home Practice Retro British Tone DA-10

Cherub G-Tone 3-Band EQ Equalizer Acoustic Guitar Preamp Piezo Pickup LCD Tuner

DJ Mixer 5ch BPM Equipped with 32bit Processing 3 Band EQ DDM4000 FX/Auto Counter/Sampler