Since its introduction, the Pandora series has been acclaimed by guitarists and bassists for its high-quality sound, versatile functionality, and superb user interface in an amazing pocket-sized package. Combining both guitar and bass effects into a single unit, the PX4D delivers a major leap in functionality as well. Its comprehensive range of sounds includes vintage amps and a wide range of cabinets, as well as effects ranging from classic to distinctively unique. The PX4D is a great choice not only for practicing, but for any situation that demands great guitar or bass sound, including recording and live performance. The PX4D contains 158 effects that deliver vintage amp sounds and much more. From high-end tube amps to rare vintage amps and classic favorites, the 25 amp types faithfully model the amp sounds that guitarists and bassists seek. Each of the 23 cabinet effects that reproduce the acoustic and structural resonances of a speaker cabinet were newly created especially for the PX4D.The creative possibilities are limitless - you can even combine a guitar amp with a bass cabinet. In addition to standards such as compressor and wah, there are numerous realistic modeling effects that deliver a versatile range of tones. Pickup modeling transforms the sound of a single-coil pickup into that of a humbucking pickup (or vice versa), a guitar (bass) synth that lets you play synth sounds, an intelligent pitch shifter that automatically harmonizes with your playing, a talk effect that produces the impression that your guitar is speaking, a slow attack effect that creates violin-type swells, a feedback effect that allows feedback playing techniques that are normally possible only at high volumes, a rotary speaker that changes speed in response to your picking or fingering dynamics, a fretless bass effect that simulates the distinctive sound of a fretless bass, and many more are ready for your use.