What it does
The Southland Harmonic Overdrive is an overdrive pedal from Greer Amps, and it grew directly out of the company's Lightspeed platform. Where the Lightspeed sits at the lighter end of the gain range, the Southland is described by Delicious Audio as the next step in that line: more gain, delivered through two stages of clipping, with each stage using a different diode type1.
That two-stage, two-diode design is the working distinction between the two pedals. Because the clipping diodes in a drive circuit shape how the signal is rounded off as gain increases, using different diode types in series stages gives the Southland its own clipping character rather than simply being a Lightspeed turned up. The pedal also carries a Harmonic control, which Delicious Audio's writeup covers alongside its behavior when stacked with other drives1.
The Southland is part of a wider Greer drive range. Players comparing it may also want to look at the Supa Cobra, a medium-gain overdrive with switchable clipping modes, and the Mori Drive, a Screamer-style pedal with Klon-derived elements1.
For a player deciding where the Southland fits, the short version is this: it is the Greer overdrive to look at when the Lightspeed's gain range is not enough, and its two-stage clipping is what separates it from the rest of the lineup1.
Videos
ProGuitarShopDemos
Greer Amps
Lance Keltner Music
Sources (1)
- Greer Southland Harmonic Overdrive, Delicious Audio, 2026-05-19









