You can experience the ear-catching, supreme clean tone of the legendary D amp and the TR, which can be considered a modern D amp, as well as the outstanding sound clarity of the legendary C overdrive, which never stops soaring! Unobtanium is a 2-in-1 pedal that combines the legendary guitar amp "D," known for its natural and responsive sound, and the legendary K Company "C" overdrive, known as a classic overdrive. The D section on the left side allows you to set two types of amp sound: ODS or SSS. ODS produces a sweet, singing drive sound, while SSS produces a beautiful, clear tone with fat compression like a tube amp. The overdrive section on the right side can be used as the main overdrive, and by placing it before the amp section, you can push the amp section with overdrive or boost to create a sound. There is an insert between the two sections, so you can connect other pedals or use a switcher to use the two sections separately. Features (right side) -Adjustable from transparent boost to high-headroom overdrive. - The treble control consists of an active circuit that boosts or cuts the high frequencies. - The volume knob that sets the overall output can be set to a high boost level. - A toggle switch allows you to select the original buffer bypass or true bypass. A toggle switch allows you to select stock clipping or enhanced gain MOD clipping. Combined with the Gain control, you can freely control low-gain or high-gain sounds. Features (left side)・Gain: Adjusts from clean to sweet, singing overdrive.・Emphasis: Pre-drive EQ for controlling presence and bottom-end response.・Tone: Adjusts the high frequency range of the post-overdrive. Volume: Adjusts the overall output. Can be used to match the bypassed volume, or as a clean boost or preamp. Mode: The toggle switch allows you to select between the following different D-style overdrive circuits: SSS: Clean and transparent overdrive with natural compression. ODS: High-gain overdrive with enhanced mid frequencies and harmonics. *Using the XT switch, you can select the voicing of the amplifier externally. *The EQ voicing and boost level can be adjusted using the trim inside the unit. *This unit boosts DC9V to DC18V internally. Please note that connecting an adapter other than DC9V will cause damage.