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The Variable Spectrum Control (VSC)
The Variable Spectrum Control (VSC) lets you break through traditional tonal boundaries. The user adjustable presets let you change your sound from creamy overdrive to bell-like highs – instantly. All Blade® electronics also have a passive bypass to give you pure vintage tone and ensure that you never run out of power.
The Variable Spectrum Control (VSC) Tone Guide (PDF)

http://www.bladeguitars.com/guitars/delta-series/t2-classic/