The Klon KTR captures all the magic of the legendary Klon Centaur Boost/OD. It's 100% designed by the original manufacturer, Bill Finnegan.
This pedal is straight ahead and completely intuitive. A wide range of sounds are available from this modern classic. It can produce transparent boost to warm rich overdrive tones, all with the signature mid-range boost that it’s famous for. The KTR is designed to overdrive the amp further into breakup, producing a lively and dynamic lead tone. The Treble control is very powerful and capable of providing subtle gradations in high-frequency response. It is usable and natural-sounding throughout its entire range; experiment
Overdrive Mode: With the Gain turned up (starting at about 10 o'clock) the creamy overdrive tones are addicting. Different amps and pedals have different input-stage headroom characteristics, so take some time to experiment with the Output to find whatever setting gives you the best results with your particular rig.
Clean-boost Mode: With the Gain control at its minimum setting, the unit is in clean-boost mode. In this mode the circuit has enormous headroom and will not generate any distortion of its own. Clean-boost enables you to hit the front end of your amp harder, or the next pedal in your signal path harder, without changing any of the essential characteristics of the signal.
Slide Switch: The output of the unit's predecessor, the Centaur Professional Overdrive, was buffered. The KTR, allows the user, via the switch, to choose between buffered output or so-called true-bypass output the former almost always yields a signal with more presence than the latter.
Outboard Power: Most regulated 9-volt power supplies should work fine. Do not attempt to power the unit with more than 9 volts, as damage to the circuitry will result, necessitating the replacement of the entire circuit board; please note that this kind of damage is not covered under the unit's warranty.
Battery Power: As it did in the original Centaur, the standard Duracell Coppertop works well and sounds good in the KTR as well, so use that particular battery if possible. Expect about ten hours' life from a new Duracell; replace the battery whenever you hear a loss of dynamic range, a high-pitched tone (the symptom of a weak battery).