Item # 151104 | Customer Ratings: ( 5 Based on 12 reviews)

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MXR M-133 Micro Amp Pedal
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When you need a little boost.

The MXR M-133 Micro Amplifier Pedal adds a preset amount of gain, using a single control. With a guitar, this lets you boost your signal for lead work, adjust between 2 different guitars with unmatched output (i.e., humbucker to single coils), or it can supply a permanent boost in a long effects chain where signal drop-off is a problem. Power: Single 9-volt battery or Dunlop ECB-003 AC Adapter - Controls: Footswitch toggles amp on/bypass (red LED indicates on) Gain knob adjusts total output volume when the Micro Amp is engaged.

MXR M-133 Micro Amp Pedal

All pedals - one year parts and labor warranty.

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Product Reviews
(Based on 12 reviews)
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  • Soloing Boost solution

    As reviewed by Michael Gibbons on 11/19/2012

    Nice Boost ,does exactly what I want, Tone remains nice,Even feels like it enhances the tone instead of actualy changing it, a good thing. I'm useng the Acoustic G120H head as a back up or alternative to my main rig and needed a boost for my lead great with solid state head through effects loop. well built just as all MXR's have been for years. Enhanced boost

    2 of 2 people found this review helpful.
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  • Nice Pedal

    As reviewed by Paula Tejano on 11/28/2006

    It?s a nice pedal to own. It can be used on solos or to increase the quality of the sound. This pedal have a good punch. I have a Warmoth strat with 3 EMG active, and a fender twin.

    7 of 33 people found this review helpful.
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  • Fantastic For Lead Boost

    As reviewed by dropd on 4/30/2010

    The sound is superb. The clarity stays intact. It adds fullness but it's not muddy at all. This is permanent on my pedalboard. I run it in front of my amps distortion: Peavey Classic 30, and after an Elite Tone Fillmore thunder fuzz. The only effect other than delay in the loop and Rocktron Guitar Silencer. I can say that this pedal makes my amp sound much better than it already is! Don't waste your money on boutique boosts and don't try to save money getting the Electro Harmonix-LPB-1, you can't beat this.

    12 of 14 people found this review helpful.
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PO Box 4769
Westlake Village, CA 91359
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