Aphex 1401 Acoustic Guitar Exciter Pedal and DI The Models 1401 through 1403 are specially designed for amplified music instruments. The world famous Aural Exciter(tm) and Big Bottom(tm) have been condensed into a small battery powered case that can be taken anywhere. The 3 models are voiced especially for the class of instrument -- acoustic, bass or guitar. They share everything in common -- all features, controls, etc. -- except specific differences in tonality that best complement the class of instrument.Model 1401 AcousticEspecially adapted for use with acoustic guitars, violins, cellos, violas, accordions, xylophones, keyboards. Any traditional acoustic instrument outfitted with active or passive pickups. Voicing is clean and open. Gives better articulation, clarity, and and projection with the feeling of a fuller reach to the lowest notes.Plus -- These terrific units work with your other effects, making them sound even better!Features:High impedance instrument input (10 megohms)Low impedance instrument output -- drives a long cable effortlesslyAural ExciterBig BottomLo Tune ControlLo Blend ControlHi Tune ControlHi Blend ControlFoot Switch with LED IndicatorActive/Passive Input SwitchBalanced XLR D.I. OutputGround LiftWet/Dry D.I. Output Switch9V Battery or AC Adapter PoweredRuggedly ConstructedBenefits:PowerDepthExpressionPunchFeelingProjectionProprietary CircuitryAural Exciter(tm)Countless albums and CD's owe part of their success to the Aphex Aural Exciter It's been a 'secret weapon' of top producers and artists for over 24 years. This patented process adds transient discriminate harmonic details to the sound - without turning it into distortion. If you want distortion, then use any distortion effect you like. The Aural Exciter will still add something good. No other so-called 'exciter' or 'maximizer' even comes close to the genuine Aphex Aural Exciter. You're going to hear that for yourself.Big Bottom(tm)Not a sub-synth, or static boost, Big Bottom is a smart system that adapts and improves what's already there. Speakers gain an extension of their low end, yet amplifiers and speakers are not overloaded. You get better sustain, but still get all the transient punch. Beyond bass, however, Big Bottom adds warmth and roundness to any instrument. Optical Big Bottom is the latest technology advancement using an optical compression device for smoother and punchier control. Spec. Input Z Active: 50,000 Ohms - Passive: 10,000,000 Ohms Output Z Instrument: 1000 Ohms - D.I.: 150 Ohms Lo Tune: 40-210Hz Hi Tune: 300-3kHz Max Input Level Passive: 0.6V RMS - Active: 2.4V RMS Frequency Response: 10Hz-30kHz +/- 1dB Typical SNR: 70dB Power Drain: 5mA Battery Type: 9V External Power: 5-12VAC and 7-17VDC Input Connector: 1/4 in. Phone Jack, Mono Instrument Output Connector: 1/4 in. Phone Jack, Mono D.I. Output Connector: XLR 3-Pin Male Input Selection: Active/Passive Pushbutton D.I. Controls: Wet (with effects) / Dry (without effects) Output Pushbutton and Ground Lift Pushbutton Power Control: Power is turned on and off by inserting the input plug. Effect Switch: High Quality Latching Foot Switch Effect Bypass: Straight wire through when foot switch is "OFF" Battery Life: Estimated 150 - 200 continuous hours with a fresh high grade alkaline battery Weight: 14 ounces (396 Grams) with battery Dimensions (Including Knobs): 4.75 in. (121mm) W x 3.75 in. (95mm) D x 2.5 in. (64mm) H