DOD OD250

Introduced in 1974, the DOD Overdrive Preamp 250 debuted as an alternative to the MXR Distortion Plus and became the go-to pedal for rockers of the ’70s and ’80s. Famous for its gritty, gain-sensitive sounds, the first version used an LM741 op-amp and Germanium diodes to produce clipping. Through the years, the OD250 underwent component changes including chip alterations such as the 351 and 4558 (in later models). Inspired by the DOD OD250 50th Anniversary model released last year, the DOD 250-X is the 10th version, and its maker, Digitech, says it offers improved sound and versatility. Key to its sound is a mini-toggle that offers three modes – Silicon yields symmetrical clipping like the original 250; Lift removes diode clipping from the signal path, providing clean boost at moderate levels or dirty boost at high levels; ASYM produces asymmetrical clipping and even-harmonic distortion. All are driven by a vintage-style LM741 op-amp. Running between a Strat and a Marshall DSL40, the 250-X helped create a walk down memory lane. It retained the tone, gain, feel, and levels of an ’80s original, and its mode toggle proved to be a treat! With Gain maxed and the Level set at 11 o’clock, Silicon mode offered raw, malleable Alcatrazz-era Malmsteen tones. Lift Mode introduced a volume and midrange bump along with a warmer, smoother ride, and ASYM offered similar sounds but reacted differently to the guitar’s Volume control. Rubber met the road at a gig. Starting with the amp set for clean sounds and the 250-X’s Gain and Level dimed, it worked as an edgy clean boost and produced vivacious chunk for rhythm work. It also shined for pushing the amp’s dirty sounds to greatness without going anywhere near over-the-top saturation. Notes sang and sustained, manifesting rockin’ overtones. The Preamp 250-X is a solid pedal with true hard-wire bypass, accepts a 9-volt adapter, and takes up very little space. It’s great for boosting cleans, increasing dirt, or even stacking with other OD/fuzz boxes, and it does it all with versatility and character. – Oscar Jordan This article originally appeared in VG’s December 2025 issue. All copyrights are by the author and Vintage Guitar magazine. Unauthorized replication or use is strictly prohibited.