The Ibanez NTS Nu Tubescreamer is the first compact guitar effects pedal to have Korg's Nutube technology built directly into its circuit. This provides an overdrive pedal with exceptional dynamics, enhanced sensitivity, and natural tube compression in a small size. Nutube is a revolutionary vacuum tube designed by Korg, which works as an amplifier.
Thanks to the VFD technology that is incorporated in it, the Nutube works on extremely low power supply and it lasts for a very long time. Paired with Ibanez's tube screamer, this creates a pedal with natural compression and plenty of headroom. The distortion is created by the nutube as it would in a normal pre-amp. This overdriven sound is mixed with the clean signal, which can be adjusted to taste with MIX control.
In the center, it most resembles the original tube creamers. Turned all the way to the left, it mainly produces a clean sound, but with the distinctive mid-boost. Turned all the way to the right, the clean sound disappears and the pedal produces a fuller overdriven sound.