Positive Grid has expanded their BIAS custom amp modeler with three new dedicated (and whimsically-named) expansion packs: Glassy (above), Crunch, and Insane. These expansion packs will enable guitarists and bassists to add further customization to their BIAS preamp, power amp, and cabinet modules by tone styles: “glassy clean tone”, “classic British crunch”, or “insanely saturated distortion”.

The basic BIAS app includes 36 vintage and modern amplifiers as a starting point for user customization. Along with the aforementioned Glassy, Crunch, and Insane packs, the updated BIAS 1.5 also includes a new “easy-to-use” 8-band EQ (with the purchase of any pack), along with better JamUp integration –another Positive Grid app consisting of several multi-effect stomp boxes. As always, the user can share their creations with other musicians on Positive Grid’s proprietary social network, ToneCloud.

Pricing and Availability. Positive Grid BIAS is available now, and retails for $19.99; the new Glassy, Crunch, and Insane Packs retail for $9.99 each. All are immediately available for download at the iTunes App Store. The app requires an iPad 2 or newer to operate. For more details, visit Positive Grid’s website.