Roland VG8

OVERVIEW based con on D70433GD-12-5BBCPU , the Roland VG-8 is a  guitar processor that uses digital modeling technology to emulate the most popular guitars and amplifiers. Using Roland’s Composite Object Sound Modeling (COSM) technology, the VG-8 combines multiple "sound objects"—like double-cutaway guitar bodies, vintage tweed amplifiers, and humbucking pickups—to create an emulation- reproduction of these components that can be played from any steel-stringed guitar with a Roland GK-2A pickup.  
ADC is a LC7886MN-TRM A/D ADC adn Burr brown PCM69AU-1 D/A DAC.

MODELS technology VGM (Variable Guitar Modeling) provides multiple sound object models including guitars, pickups, amps, cabinets, microphones and even mic placement 

Memory: 128 Preset Patches, 64 User Patches using roland M256E cards

VG-8EX VERSION also has a built-in polyphonic pitch shifter for creating 12-string guitars and open tunings as well as a complete digital effects processor and parametric EQ. Plain unit can be expanded using the Roland VG-8 S1