
SD-2 Super Over Drive
The AVIA SD-2 Super Over Drive is a fascinating relic from the late Soviet era, a product of the small "Symbol" plant in the Ural Mountains. While its origins may be obscure, this pedal packs a surprisingly potent punch that has earned it a cult following among discerning guitarists. At its heart, the SD-2 is a classic overdrive circuit, but one with a distinct personality all its own. The trio of UD1208 op-amps lend the gain a smooth, almost tube-like quality, without ever becoming harsh or brittle. The result is a warm, singing overdrive that blooms beautifully under the touch, responding dynamically to your playing. But what really sets the SD-2 apart is its uncanny ability to fatten up your tone while retaining clarity and definition. Chords remain articulate and individual notes sing out, even when the gain is cranked. This makes it a versatile tool, equally at home adding subtle grit to your clean sound or pushing an already overdriven amp into glorious, saturated sustain. Though its production run was limited, the AVIA SD-2 has found admirers in unexpected places. Rumor has it that Radiohead's Jonny Greenwood was an early adopter, drawn to its unique sonic signature. In the right hands, this unassuming Soviet pedal can conjure tones that are at once familiar and wholly original.