Nominal Input Level -20 dBu Input Impedance 1 M ohm Nominal Output Level -20 dBu Output Impedance 1 k ohm Recommended Load Impedance 10 k ohms or greater Controls Pedal switch TONE knob LEVEL knob DIST knob Indicator CHECK indicator (Used for indication of check battery) Connectors INPUT jack: 1/4-inch phone type OUTPUT jack: 1/4-inch phone type DC IN jack Power Supply Alkaline battery (9 V, 6LR61) or Carbon-zinc battery (9 V, 6F22) AC adaptor (PSA series: sold separately) Current Draw 10 mA Expected battery life under continuous use Carbon: Approx. 50 hours Alkaline: Approx. 80 hours * These figures will vary depending on the actual conditions of use. Accessories Leaflet ("USING THE UNIT SAFELY," "IMPORTANT NOTES," and "Information") Carbon-zinc battery (9 V, 6F22) Option (sold separately) AC adaptor (PSA series) Size and Weight ( incl. battery ) Width 73 mm 2-7/8 inches Depth 129 mm 5-1/8 inches Height 59 mm 2-3/8 inches Weight 360 g 13 oz * 0 dBu = 0.775 Vrms *The specifications are subject to change without notice.