also simulate the warm sound created by miking the guitar's neck and body— a world's first! Boss AD-8 Features: Floor-based acoustic guitar processor featuring COSM Acoustic Guitar Modeling technology Turns ordinary piezo-equipped acoustic guitars into six of the world's finest acoustics Body and String Enhance controls simulate warm, miked acoustic sounds High-quality reverb tailored for acoustic guitar, 4-band EQ and Anti-Feedback Onboard chromatic tuner with Mute function and quick pedal-based operation 4 Preset memory locations for switching acoustic sounds instantly Balanced XLR outputs allow direct connection to PA systems Boss AD-8 New COSM® Acoustic Modeling Nothing beats the sound of a fine, miked acoustic, but budgets and feedback issues often force musicians to use a more affordable electric-acoustic instrument with often thin-sounding piezo pickups. Thanks to the AD-8's innovative COSM Acoustic Modeling technology, you can transform your ordinary acoustic guitar into one of six high-end guitars like Martin and Gibson-a world's first! The AD-8 even simulates the popular ""miked acoustic"" sound via its Body and String Enhance controls. Flexible Tone Editing The AD-8's high-quality reverb effect was designed specifically for acoustic guitar. The reverb can be adjusted to create anything from a slight touch of ambience all the way to rooms and halls-perfect for adding spaciousness to your sound. And with onboard 4-band EQ, you can shape your tone to suit any style of music or venue. A Live Performer's Dream Designed with the stage musician in mind, the AD-8 offers several convenient features for performance, starting with an onboard tuner based on BOSS' acclaimed TU-Series. Just click the pedal to mute the guitar sound and tune up while referencing the LED display. Onboard memory lets you store your favorite settings and switch between them instantly, while Auto Anti-Feedback eliminates embarrassing feedback. Professional Connections In addition to unbalanced stereo outputs and a dedicated Electric Guitar Amp output, the AD-8 comes with a pair of XLR outputs. These balanced stereo outputs are true DI-complete and include a ground lift feature for eliminating hum. They're the perfect way to connect to a PA system or to professional recording gear. With the BOSS AD-8, you'll sound great whether on stage, at home or in the studio. *All trademarks are property of their respective owners Boss AD-8 Specifications: Nominal Input Level -20 dBu Input Impedance 20 M ohms Nominal Output Level -20 dBu Output Impedance UNBALANCED OUTPUT/ELECTRIC GUITAR AMP OUTPUT: 1 k ohms BALANCED OUTPUT: 600 ohms PHONES: 33 ohms Recommended Load Impedance 10 K ohms or great"  (less)