Check the listing for details. Maestro Agena Envelope Filter. Condition: New. Listed at 159.99 USD. Maestro Agena Envelope Filter New FromDexter Music CenterAuthorized Dealer Musically Inspiring and Sure to Bring the FunkThe Maestro Agena Envelope Filter pedal is designed for ease of use and is tailored for optimized dynamic control. The Agena offers two distinct filter frequency options for a wide range of tonal possibilities. Musical and inspiring, it will surely bring on the funk. This all-analog pedal boasts a two-position Mode toggle switch for increased sonic versatility. The LO mode setting focuses the filter in a lower frequency range, while the HI mode emphasizes a higher range of frequencies. The intuitive 3-knob control layout lets users quickly set the desired Sense (the envelope’s sensitivity and response to your picking attack), control the Attack (how fast the filter increases or opens up), and adjust the Decay and how long the filter stays in the open position. The true bypass footswitch triggers the LED lights in the bugles in the Maestro logo when it’s on, so you’ll always know when the effect is active. Switches True Bypass footswitch, HI/LO Mode toggle switchLed Indicators Red, yellow, and blue bugles in the Maestro logo illuminate when the pedal is activeSignal Processing All-AnalogPower Requirements 9V battery or regulated 9VDC power supply (5.5 x 2.1 mm plug, wired center-negative)Current Draw 26.6 mAPower On Switch Incorporated into the input jack. Unplug the input when not in use to prevent battery drain. Remove the battery when the pedal is going to be stored for long periods to prevent leakage and damage.Input Impedance 380 kOhmsOutput Impedance 500 OhmsSwitching Type True Bypass