[FONT=geneva,arial,sans-serif]Unique to the TD-X are its two Simulator controls. While most digital units emulate analog tones by using a high frequency roll off, the TD-X uses a frequency filtering system combined with tube warmth and saturation for a unique, organic delay tone that is much more realistic than digital modeling.[/FONT]
[FONT=geneva,arial,sans-serif]The Analog Simulation control blends in tube saturation on the Delay Repeats against the unfiltered Delay sound. This saturation is similar to the effect of an Analog Delay unit on the original signal, where note clarity decreases with each additional repeat.[/FONT]
It is the only pedal that I know that can get close to the divine sound of the red SIB Echodrive (which in turn was actually far better than the blue, in spite of what most people think). ).