Positive Grid has launched a Summer Sale, offering up to 75% off the JamUp multi-effects and BIAS amp designer apps.

A vast array of popular guitar stompboxes and effects, as well as vintage and modern amps were never so affordable. For a very limited time, Positive Grid (www.positivegrid.com) is offering guitar and bass players a 75% special discount for both their JamUp Pro multi-effects and BIAS amp modeling iOS apps, available for download in the iTunes App Store. But that’s not all: all in-app purchases -all amps, effects, and bundles- are 50% off regular price.

JamUp is a complete powerhouse multi-effects processor for guitar and bass. It offers over 100 amps and effects, GarageBand integration, looper, iTunes player with tempo/pitch control, built-in tuner and metronome, live-view, preset manager, MIDI support and more.

BIAS is an amp designer, modeler and processor that includes 36 of the most sought-after vintage and modern amps in rock ‘n’ roll history as a starting point for user customization. Users can modify these amps and virtually build their custom amps by swapping out the tubes, preamp, transformer, tone stacks, cab and mic to create their own distinctive signature sound. Users can also upload their amp creations to ToneCloud, BIAS’ own amp-sharing platform, to share their custom presets with other users.

More information: Positive Grid