BIAS is a professional amp designer, modeler and processor that gives you a stunning replications of 36 of the most sought -after vintage and modern amps in rock ‘n’ roll history .
Create totally new sounds by designing your custom dream amp swapping out the tubes, preamp, transformer, tone stacks, cab and mic; all from an easy to use interface designed for your iPad or iPhone. It doesn’t matter if you’re a classic rocker, metalhead, jazz player, bluesman or singer-songwriter, BIAS Head gives you exclusive tones in a heartbeat.
BIAS integrates seamlessly with Positive Grid's free JamUp XT and optional JamUp Pro XT guitar multi-effects apps, expanding BIAS into a powerful and completely unified professional guitar system for live use, recording and jamming.
• The most complete, accurate, and versatile amp modeling available in the world
• 36 amp models included with the introductory release
• Factory categories organize amps by music genre and sonic impact: clean, blues, twang, crunch, metal, acoustic and bass
• Fully customizable preamps, tone stacks, power amps, transformers, cabinets and mic selection and placement—mix and match!
• Customize the look and feel of your own amp panel, change name, tolex, panel and knobs.
• Works the way guitarists think: tweak gain and overdrive, swap out tubes and transformers, change the cabinet and mic position, and shape the tone with different tone stacks and two 8-band equalizers
• Create a virtually unlimited number of custom amps
• Quick preset to recall each of your 8 favorite settings in turn with just one tap
• Seamless integration with JamUp XT and JamUp Pro XT, open and save your amp models inside JamUp with one tap
• Works with GarageBand and other audio apps via Inter-App Audio and Audiobus.
For iPhone7 users: you need a lightning interface with output to use this Positive Grid's app. For more information, please visit
Also check out BIAS Desktop (AAX/RTAS/VST/AU) at: www.positivegrid.com
BIAS for iPhone App Details & Overview
BIAS for iPhone is an application developed by Positive Grid Inc and released on iOS. The app is compatible with iOS 9.0 or later on the following devices: iPhone 7, iPhone 6, iPad 3, iPad Mini and iPod Touch 5G or newer.
Download the BIAS for iPhone app and use on your iPhone or iPad. Click here to download the app for Android or Windows devices.
Developer site: Support
What's new in version 1.6.6
Hi there, In this update, we are fully compatible with Audiobus 3. Rock on, Team Positive Grid
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App Updates (View More)
BIAS for iPhone App Add-Ons
Note: Add-ons available as in-app purchases