The Bass Octave Deluxe is a dual-voice octave pedal that offers analog tone, true bypass, and a variety of tonal options. MXR’s 18 volt Constant Headroom Technology provides high headroom and superior tracking. Use the Dry knob to mix in your direct signal, and hit the Mid+ switch to add up to +14dB of internally adjustable mid frequencies (400Hz or 850Hz). Finally, mix in two separately controlled octave voicesGrowl (for throaty tone) and Girth (for deep tone).Scarlett Music. We’ve been looking after you, our musical family for decades. Offering our wealth of expertise and knowledge in Adelaide and the greater Australian community! We’re here for you, but if you want to learn more checkout the manufacturers product listing here.