BOSS BF-3 Flanger – Specifications Audio Specifications Parameter Value Nominal Input Level -20 dBu Input Impedance 1 MΩ Nominal Output Level -20 dBu Output Impedance 1 kΩ Recommended Load Impedance 10 kΩ or greater Bypass Type Buffered Bypass Controls Control Element Function HIGH FILTER / LOW FILTER Tone shaping DEPTH Knob Adjusts modulation intensity RATE Knob Controls modulation speed E.LEVEL Knob Sets overall effect level Pedal Switch Turns effect on/off Indicators Indicator Function CHECK Indicator Shows effect status / battery check Connectors Jack Type INPUT Jack 1/4-inch phone type OUTPUT A/B Jack 1/4-inch phone type (mono/stereo) DC IN Jack For PSA-series AC adaptor Power Supply Power Source Details Battery Alkaline 9V (6LR61) AC Adaptor (Optional) PSA Series Current Draw 55 mA Battery Life (Alkaline) Approx. 6.5 hours Size & Weight Dimension Metric Imperial Width 73 mm 2-7/8 inches Depth 129 mm 5-1/8 inches Height 59 mm 2-3/8 inches Weight (with battery) 425 g 15 oz Accessories & Options Included Optional Leaflet AC Adaptor: PSA Series 9V Alkaline Battery
