JamUp Pro Update and Metal Signature Model Pack

Positive Grid, the developers of JamUp Pro XT for iOS, have announced an update to its Guitar/Bass iPad and iPhone Amp-Effect Processor. JamUp Pro XT 2.4 features the 12 Metal Signature Model Pack — a collaboration with three ‘metal masters’: guitarists Jeff Loomis (Nevermore), Ola Englund (Six Feet Under, Feared) and Keith Merrow.