Although the SOV-2 does not use vacuum tubes, various efforts were made over several years to design it in a way that would achieve the soft harmonics and dynamics of a tube amp. The first step was the power circuit. Increasing the power voltage is effective in achieving the dynamics of a tube amp. While using a power transformer is one method, it is very expensive and not practical for fitting the circuit into a small die-cast case. Instead, a high-performance DC-DC converter was adopted to design a power circuit of ±15Vdc. Additionally, a powerful filter circuit was added to reduce the noise of the power line caused by the oscillation circuit within the DC-DC converter, and careful consideration was given to supplying clean power to the circuit. The power circuit is important as it directly affects sound quality.

Next, optimization of the signal path was carried out. It is a well-known fact among designers that sound changes with the design of the signal path. A considerable number of prototypes were made, and efforts were made to get closer to the intended sound. As a result, it took several years to complete the SOV-2, but satisfactory results were achieved.

The SOV-2 has unique characteristics and is an effect pedal that matches not only Marshall and Fender amps but also many boutique amps. To increase sound variations, it is also recommended to use it in combination with other overdrive pedals. As a designer, there is no greater joy than to have many people explore its potential and find it helpful.

• Wide dynamic range and powerful expression based on ±15 Vdc internal boosting
• Incredibly high signal-to-noise ratio.
• Exceptional sound stability by using long-life high reliability components.