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MXR M-135 Smart Gate

MXR M-135 Smart Gate

Noise Gate Guitar Effects Pedal

Brand New


Regular Price: $129.99

Special Price: $94.99

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Product Description for the MXR M-135 Smart Gate

Tame your hissing high-gain amp or silence your string of stompboxes with this ingenious pedal. The Smart Gate is equipped with three selectable types of noise reduction to handle virtually any type of signal. It bites down on sizzle and hum but lets the smallest detail of your playing through. With its uncanny ability to sense precisely when-and how fast-to engage, this little genius will never get in your way, so you can wring every last bit of sustain out of that chord without being cut off. The M135 features a hardwire bypass, precise threshold trigger, and amazingly clean circuitry.



  • Three selectable noise reduction ranges
  • Reacts gradually to long, sustained notes and quickly to short, syncopated notes
  • Fast attack time preserves picking transients and harmonic overtones


The MXR Smart Gate is powered by one 9-volt battery (remove bottom plate to install), a 9-volt AC adapter such as the Dunlop ECB003/ECB003E, or a DC Brick  power supply


  • Run a cable from your guitar to the Smart Gate’s INPUT jack and run another cable from theSmart Gate’s OUTPUT jack to your amplifier.
  • Set the TRIGGER LEVEL knob to fully counterclockwise and use the NOISE BAND CUT switch to select the noise frequency range you want to suppress— Hiss for highs, Mid for mids, and Full for lows.
  • Turn the effect on by depressing the footswitch and play a note or chord and let it ring out.
  • Rotate the TRIGGER LEVEL knob clockwise until unwanted noise has completely died out. The yellow GATE LED will light up when the gate has engaged.
  • If you find yourself in an extremely noisy playing situation, push the HI TRIGGER RANGE switch to extend the range of the TRIGGER LEVEL knob.


  • Input Impedance : 1 MΩ
  • Output Impedance : 1 kΩ
  • Maximum Input Level : +7dBV
  • Maximum Output Level : +7dBV
  • Noise Floor*
  • Gate Closed -105 dBV
  • Gate Open
  • HISS : -100 dBV
  • MID : -100 dBV
  • FULL : -96 dBV
  • Frequency Response
  • Gate Open : +0/-1 dB, 20 Hz to 20 kHz
  • Gate Closed
  • HISS : -3 dB at 1 kHz
  • -22 dB at 20 kHz
  • MID : -3 dB at 500 Hz
  • -23 dB at 20 kHz
  • FULL : -36 dB at 60 Hz -22 dB at 500 Hz -23 dB at 20 kHz
  • Bypass : Hardwire
  • Current Draw : 15 mA
  • Power Supply :9 volts DC


  • HI TRIGGER RANGE switch extends trigger range for extremely noisy situations
  • TRIGGER LEVEL knob controls sensitivity of gate threshold (indicated by yellow GATE LED)
  • NOISE BAND CUT switch selects noise reduction range (Hiss, Mid, or Full)
  • FOOTSWITCH toggles effect on/ bypass (red LED indicates on)
Brand MXR
Weight 1.0000
Dimensions (WxHxD) No


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