More knobs mean less headaches.
The PX4 is designed for easy use. Its user interface is based on direct control via knobs, eliminating any complex editing steps. The 11 most frequently used amp types can be selected directly using an independent dial, and tone controls, such as gain, treble and bass, can be edited using knobs, just like on a conventional guitar amp. Effects types and parameter values can also be edited instantly with the value dial.

Play along with a variety of rhythm and bass patterns.
The PX4 comes programmed with 40 different rhythm patterns covering styles like rock, jazz, funk, blues and dance music. You can specify the key you want to play in and the chords you want to play over and the PX4 will lay down a pro-sounding bass line along with the rhythm backing so you can practice in any style. Of course, you can also its effect programs while you practice, making the PX4 excellent for practicing riffs, creating solos and sharpening your chops. The PX4 also lets you chain up to eight different rhythm patterns together, so you can easily work on demo songs using just your PX4.

Phrase Trainer makes learning new licks easy.
With the PX4's Phrase Trainer, you can record up to 32 seconds of sound from a CD/MD player and play it back as a loop. The speed can also be slowed down without affecting the pitch of the original material, making it easy to learn difficult or very rapid phrases. In addition, you can play along with the PX4's built-in rhythm and bass, record a phrase and then use it to practice soloing over. The possibilities are endless.

Built-in infrared transmitter.
Go cordless with the PX4's infrared transmitter. Simply put on a pair of infrared wireless headphones and enjoy playing guitar anytime and anywhere without any annoying cables.

Jam with your favorite band.
Just connect the output of your CD or MD player to the AUX IN of the PX4, and you can play your guitar while listening to songs on CD. Since the Key Transpose function lets you raise or lower the pitch of the input audio source by as much as one octave, you can play along without having to adjust the tuning of your guitar. You can even change songs recorded in dropped tuning to standard tuning.

Backlit semi-transparent LCD for even better visibility.
The LCD screen that displays effects and program names is backlit for enhanced visibility, even on a dark stage. And, since icons are used to represent the PX4's various functions, its operating status is obvious even at a glance. Finally, as a first for the Pandora series and to provide outstanding visibility, the PX4 relies on a semi-transparent LCD so that characters and icons are lit up when the backlight is used

Specifications subject to change without notice