Tube overdrive pedal.
3 control buttons: Drive, Output, and Voicing (Mid control).
2 switches: two different types of drive.
Transformer provided, no batteries.

UTILIZATION

Very easy to use! 3 knobs, 2 switches!
The switch gives one a fairly moderate overdrive while switch 2 delivers a more powerful saturation.
Simple manual (in English and German only), but clear and offering different types of settings.

SOUND QUALITY

Sound qualities as a leader in rhythm.
- Booster to clean sounds.
- Overdrive vintage style to the most current saturation with Voicing button.
- Distortion warm and powerful without going (in my opinion) in the registry Metal.
I use it on a Start and a Les Paul, ca does with two of course!

OVERALL OPINION

Very versatile pedal with sounds hot!
It's a foot longer than the standard sizes bulky type BOSS, DOD etc. but for trying some of these pedals, I think the Tube Factor offers a range of sounds with relatively large heat and more.
I use it for a year and I am very satisfied.
The price is not cheap (about 250 euros) but I think it is worth it.
I would do so this choice.