- Yamaha HX One; effect pedal for electric guitar; 250+ effect models and 128 presets; updates and additional functions via USB-C connection to computer and free HX One Librarian App; switchable true or buffered DSP bypass; connection for optional expression pedal (automatic control of relevant effect parameters) or foot switch; adjustable input impedance; Flux controller; selection and adjustment of effects via OLED display and corresponding knobs; MIDI In and Out/Thru; 4 knobs for controlling and adjusting effects and presets; 3 pushbuttons for control within the user interface; 2 separate RGB LEDs; OLED display; footswitches for bypass and tab/flux; connections: Stereo L/R inputs and outputs jack, Midi In and Out/Thru, USB-C connector; power adapter connector Hollow plug socket 5.5 x 2.1 mm, negative pole inside; current consumption: 500 mA; power supply with a 9 V DC power adapter (included); dimensions: (W x D x H): 96 x 125 x 62 mm; weight: 450 g