Used MXR M133 Micro Amp Pre Effect Pedal

Add clean boost and definition to your signal chain with this used MXR M133 Micro Amp, in good condition and fully functional. This pedal is perfect for guitarists looking to enhance solos, balance output between guitars, or compensate for signal loss in long cable runs. Featuring a single Gain control, the M133 delivers up to +26dB of boost and maintains true bypass for pure tone integrity. Built into a sturdy metal chassis, it's road-ready and reliable. Whether you need a subtle lift or a powerful punch, the Micro Amp offers simple, effective control with signature MXR durability. Runs on a 9V battery or optional 9V DC power adapter (not included).