Type: Analog distortion/overdrive pedal (classic simple 2-knob design).

•  Controls:

•  Distortion: Adjusts the amount of gain/distortion (from light overdrive to thick, germanium-diode clipping saturation that can approach fuzz territory).

•  Output: Controls overall volume/level (also acts as a boost).

•  Sound Character: Delivers everything from warm, tubey blues overdrive to raw ’70s/’80s hard rock distortion. It uses germanium diodes for soft clipping, which gives it a compressed, dynamic, non-brittle response. It has a bright/treble-forward character that cuts through well. 

•  Power: 9V battery (included in many units) or standard 9V DC adapter (Dunlop ECB003 or similar). Current draw is very low (~2.5 mA). 

•  Dimensions/Weight: Compact — roughly 2.6” wide x 4.4” long x 2.1” high (including knobs); ~0.76 lbs. Standard MXR housing. 

•  I/O: Standard 1/4” input and output jacks. True/hardwire bypass.

•  Other: Red LED indicator, tough metal enclosure.

Tech Specs (from manual):

•  Input Impedance: 1 MΩ

•  Output Impedance: 25 kΩ

•  Nominal Input Level: -22 dBV

•  Maximum Output Level: -14 dBV (with Output at mid)

•  Noise Floor: -74 dBV (A-weighted) 

It’s a straightforward, no-frills pedal that’s been around since the 1970s (original MXR Distortion +) and remains popular for its reliability and classic tones.