MXR M233 Micro Amp Micro Amp Guitar Effects PedalFor more than 20 years, the MXR Micro Amp has been a staple among the worlds top artists because of its ability to boost and sweeten up your guitar or bass tone and drive the front of your amp. The Micro Amp+ builds on that classic pedal with EQ controls so you can finely sculpt your boosted signal along with other upgrades that take this powerful boost box to the next level. With its Gain knob, the Micro Amp+ allows you to dial up just as much gain