The MXR M306 Poly Blue Octave Pedal is a colossal box of tone. Theres a staggering array of effects to explore in a single pedal thatll keep you experimenting all night. With no less than four separate octave divisions available you can send your tone plummeting down the registers for some unctuous bass or soar up through the pitches to reach dizzying high notes. Combine all those octaves together or separately and mix in the fuzz mono dry/wet and expression pedal options and you have an almost unlimited palette of sonic creation. Whatever sound is in your head you can bring it to life it on the MXR Poly Blue. It simply cant be overstated just how versatile and varied this delightful stomp box is. Offering dual-mode modulation your effects are boosted with phaser like momentum be that a thick undulating slow swirls or a frenzied frantic dash. Set into the polyphonic mode you have access to textures resembling the famous rotary Leslie effect while the monophonic switch evokes the swooshes and dips of MXRs celebrated Phase 90 pedal. And for those times you dont want to draw on the considerable power of the M306 its default off bypass mode will ensure your signal is unaffected no matter where you place this on your pedalboard. Four octave divisions MXR want you to test experiment prod and poke this pedal. Theyve loaded it with a whopping four octave divisions to keep you playing all night long. With two sub controls to bring a deep glorious bass shift you can instantly achieve funky low register grooves or filthy muddy bottom-end frequencies. At the other end of the scale the two Oct controls send your signal sky-high imbuing a spiky piercing bolt of noise to contrast your dry output. Individually these effects are a lot of fun but where the magic happens is MXRs seamless ability to blend them however you like. Crank them all up to the maximum to elicit an ethereal organ like effect that give your amp a satisfying wail or season to your taste. This pedal was built to tinker. The expression pedal switch option puts you firmly in control of how to access these scintillating sounds Magical modulation No limits. With dual-mode modulation on the Poly Blue you have command over a vast array of tones. Set in polyphonic by default youll have amazing results with both single notes and complex chords. Dial the modulation setting up to get a swirling rotary noise thats reminiscent of the famous Leslie effect. Engage the mono switch to evoke the vintage swooshing ocean wave like peaks and troughs of a phase 90. Even without any of the octave modes engaged this modulation gives you enough sonic variation to keep you occupied. Hot Fuzz Youll notice two switches at the top of the M306 Fuzz and Mono. This dynamic duo introduces new dimensions to accent your octave and modulation effects with. Starting with fuzz you gain a satisfying crunch that could compete against dedicated distortion pedals. Mix that with the sub octaves for some filthy dark rumble or turn to the upper pitches to shriek out synth like electrifying high notes. Run all these dials together for a thunderous chorus that echoes the voices of gods. Easy to control you can set your preferred amount of fuzz by simply holding the button and adjusting the dry/wet control. Monophonic mayhem Sometimes whats old is gold. With the mono switch you can recreate the analog pitch shifters of yore and revel in the gritty vintage vibes. Add in the sub dials to get the warm sound and response similar to the MXR Vintage Bass Octave while the higher octaves deliver that classic shrill tingle. Total control at your feet The MXR is set up to work when you want and how you want. Aside from the dry/wet control that allows precision adjustment on effect levels theres also the input for an expression pedal or tap switch. This gives you fine control over your effects with an expression pedal you can blend between effects on the fly or use a tap switch to instantly toggle between pre-set modes. Specifications Product Code: MXR-EFX-M306 Model Name: MXR M306 Poly Blue Octave Pedal Input Impedance: 1Mohm Output Impedance: 100 Ohm Maximum Input Level: +5 dBV Noise Floor: -97 dBV Current Draw: 365mA Power Supply: 9 volts DC