Greer Southland Harmonic Boost | Tasty Audio]

Updated May. 19, 2026 | by Paolo De Gregorio

You want overdrive that doesn’t sound like you plugged your guitar into a blender full of bees. The Greer Southland Harmonic Overdrive walks that line. It’s been kicking around for a while now and has earned its reputation through sheer reliability and good tone.

It started as a modded version of their Lightspeed pedal. The Lightspeed is already a classic in its own right—transparent, touch-sensitive, the kind of overdrive that makes your amp sound like itself but better. The Southland takes that foundation and adds more low-end girth and a different clipping structure.

The magic is in the Harmonic control. It blends between two distinct clipping modes. One side gives you a softer, more open drive with even-order harmonics. The other side gets grittier, more compressed, with odd-order harmonics that push into distortion territory. Dial it across the range and you get layers of texture that a single-knob tone control can’t touch.

The EQ is voiced to work with Fender-style amps especially well. It tightens up the low end without getting flubby. It lets single coils sing and humbuckers growl. It stacks beautifully with other pedals because it doesn’t try to dominate the signal, just enhances what’s already there.

There’s a reason this pedal shows up on serious boards and doesn’t leave. It’s not flashy. It doesn’t have a gimmick. It just makes you sound better. That’s the whole trick.

Greer Southland Harmonic Overdrive, Builder’s Notes

The Southland Harmonic Overdrive is built on the Lightspeed Organic Overdrive platform, we have developed what we believe to be the best overdrive on the market.  The Lightspeed was built with the specific purpose of being a light to mild overdrive.  The Southland is the next logical step for the Lightspeed platform—more gain, with two stages of clipping (utilizing different diode types for each stage of clipping), a focused midrange (not that annoying “hump”), and a bit of presence on top of the signal, to help cut through the mix.  The Southland Harmonic Overdrive, like the Lightspeed, is touch sensitive, responds to pick attack, and has dynamics that just won’t stop.  On top of that, we’ve selected a chip to drive the Southland that takes it to the next level.

The Southland Harmonic Overdrive will fit with any musical style, and pairs amazingly well with the Lightspeed Organic Overdrive.  If you’re looking for two pedals that stack amazingly well together, and can give you a rich, harmonics-filled overdrive tone, then it’s time to get a Southland Harmonic Overdrive, AND a Lightspeed Organic Overdrive, today!!!

***NOTE***We’ve been getting quite a few questions, about whether or not the Southland and Lightspeed cover the same territory.  The truth is that they don’t.  The revoicing of the circuit to have more of a focus on the mids, and more presence in the top end, as well as the increase in gain of the circuit, push the Southland to a place that the Lightspeed doesn’t get to…one of the primary goals with the development of the Southland was to create a pedal that was different, AND would work well together with the Lightspeed.  The combination of the Southland and the Lightspeed make for one of the most heavenly overdriven tones we’ve ever heard…and we’re okay with that!

• Amazing mild to medium overdrive and crunch!
• Thick harmonics, amazing sustain!
• Focused midrange (without the annoying hump), and extended presence range, to help cut through the mix!
• True Bypass!
• Uses 9-Volt battery or standard neg. center, 2.1mm power supply.
• Built with top quality components
• 5 year warranty to the original owner!
• Pedals are currently built to order, and will ship within 1-2 weeks of your order and payment