Back to navigation


Unlimited Amp Modeling Potential





This article was


Written By





Our Product Research Team





Get to know them!





The Positive Grid BIAS Rack Processor is ready to re-create any guitar amplifier ever made, right down to the component level. This modeling preamp is based on the powerful amp modeling capabilities of BIAS Amp Pro software (included), and is perfect for creating any guitar tone you could ever need in the studio. It's a great way to go direct to the sound system for live performance, or connect it to a power amp and speaker cabinet of your choice for explosive tone onstage. Thanks to BIAS's Amp Match technology, you can capture the character of your own amplifiers and load them into your BIAS Rack Processor for instant recall, and you can explore thousands of Amp Match presets on the BIAS ToneCloud created by players worldwide. Whether you're practicing, recording, or performing, the Positive Grid BIAS Rack is an outstanding solution for wide-ranging tone.





Related Videos: BIAS Rack Amp Match Rackmount Preamplifier





NOW PLAYING:


Match Any Amp's Tone





BIAS Rack - Blues Demo by JP Soars





Easy Amp Design





Tone Walkthrough





Jeremy SH Griffith on BIAS Rack





Amp Match in BIAS AMP 2 - Get To Your Favorite Tones Faster





Performance Demo





Tube Amp vs Solid State -?What's the Difference?


A Gig-ready Preamp with the Flexibility of Software


Seamlessly integrates with BIAS Amp Pro software and app





As part of the BIAS ecosystem, BIAS Rack Processor is designed to be an extension of the acclaimed BIAS Amp Pro software (included) and the BIAS Amp app. Use the software to create your own custom amplifiers, tone presets, and Amp Match models, then load them into BIAS Rack Processor's 25 preset slots. It comes loaded with 25 great tones to get you started, ranging from sweet clean sounds to aggressive high-gain tones.





Design your own custom amplifiers





Use the included BIAS Amp Pro software to create your own custom guitar amplifiers, then load them into the BIAS Rack Processor. You control the number and type of preamp tubes, transformers, tone stacks, speaker cabinet emulation, and even virtual microphone position. Keep your new secret sonic weapon to yourself, or add it to the thousands of custom amp models available on the BIAS ToneCloud.





Easy to upload new tones, even onstage





It's easy to update the presets in your BIAS Rack Processor. At home or in your studio, just connect the BIAS Rack Processor to your computer via USB to upload new tones. And it can connect to your iOS device via Bluetooth, allowing you to make last-minute changes to your presets using the BIAS Amp app even if you're at the gig away from your computer.





Re-create Tones with Amp Match


Capture the tone of any amplifier





Using the BIAS Amp Pro software, you can capture the sound of real amplifiers and put them in your BIAS Rack Processor. It's a great way to take the sound of your prized amplifier onstage while leaving it safely at home, and also a smart solution for matching recorded guitar tones, too.





Amp Match re-creates tones fast





Matching a guitar tone with BIAS Amp Pro is easy - all you need is a recording of the amp or guitar tone you're trying to re-create. Then you create a similar amp in the BIAS Amp Pro software as a starting point, tell it to match it to the recorded guitar tone, and it'll tweak your custom amp to sound like the target amplifier. You can then use the preset within the software, or load it as a preset in the BIAS Rack Processor.





Download custom amp models on BIAS ToneCloud





Visit the BIAS ToneCloud to access thousands of custom amp models created by signature recording artists and other guitarists around the globe. You can also upload your own custom amp models to share your tone with the world.





Nine premium reverbs to choose from





With the BIAS Rack Processor, you can choose from nine reverb types to add dimension to your tone. From rooms and chambers to classic spring reverb, you'll be able to find the perfect reverb for any style. And with comprehensive controls including high- and low-cut filters, dwell (added saturation), and damping, you've got studio-style control over your reverb tone.





Positive Grid BIAS Rack Processor Features:


Rackmount guitar and bass preamplifier offering full integration with BIAS Amp Pro software and BIAS Amp app


Stores 25 presets at a time for instant recall


Create your own custom amplifier designs using the included software


High-quality components for outstanding audio quality and zero-latency performance


Amp Match technology allows you to re-create the character of recorded guitar tones


Explore thousands of custom Amp Match presets via ToneCloud


Ideal for performance, recording, and practice


Integrates with BIAS Amp Pro software via USB, and with the BIAS Amp iOS app via Bluetooth


Effects loop with switchable series/parallel operation for integrating your effects pedals


Direct outputs for connecting to sound systems or recording devices


MIDI in/out/thru for connecting with MIDI equipment