Positive Grid Bias Guitar Amplifier Head (600 Watts)

No longer available at zZounds
Capture any amp's tone with the Bias amp head. This 600-watt beast is ready for any venue, and you can leave your valuable and fragile old amps at home.

Insane Tone Possibilities! The world’s first cross-platform guitar amplifier, BIAS Head integrates seamlessly with BIAS Amp for mobile and desktop use: you can design your custom amp and create Amp Match models in real time.

Next Level Amp Tone

BIAS Head is a guitar and bass amplifier that accurately captures any amp tone in the world, including the cab and even mic position. You can safely connect your cab into its powerful Class D 600 Watts RMS at 8 Ohm or 300 Watts at 16 Ohm. With the included BIAS Amp Pro software, you can share and download thousands of amp match models and save them right in the head.

New Kind of Amp

Hardware and software beautifully integrated, BIAS Head allows you to design and match any amp tone on the fly, share and download Amp Match models in the cloud, and use that massive tone on a full-blown 600w RMS power amp.

Amp Match and Tonecloud

BIAS Head comes with Amp Match® technology, which lets you precisely match the nuanced tone of any classic, modern or boutique amp and load custom cab and mic responses. You can share or download thousands of Amp Match models from ToneCloud.

Premium Components

The op-amps, passive components and A/D and D/A converters used are all top of the line. BIAS Head’s power amp is optimized to perform any BIAS Amp presets at the highest audio quality possible at any volume. It also provides zero latency performance due to its built-in interface.

Amp Match

Amp Match® lets you capture or download read more any tube amp tone and sync it with your desktop and mobile devices. You can then use the exact same tone with BIAS Head on stage, in the studio or while practicing at home.

Amp Design

Design your custom dream amp and sync unique presets in real time. Swap out the virtual tube types, preamp, transformer, tone stacks, cab and mic position to create your own signature sound, with just a few taps or mouse clicks.

Thousands of Amps

Download thousands of Amp Match® models created by legendary recording artists and your fellow guitarists on ToneCloud, and sync the entire collection across your desktop and mobile devices and BIAS Head in a snap.


- Amp Match Amplifier with built-in power amp
- Hardware and software (iPad, iPhone, Mac, PC) beautifully integrated
- Amp Match Technology to precisely match any real world amp tone
- Swap out virtual tube types, tone stacks, power amp, transformer, cab, mic
- Virtually design, share and download thousands of amps from the cloud
- Top of the line audio components, power amp, A/D and D/A converters
- Fully configurable MIDI controls
- USB connection for BIAS Amp app for Windows and Mac
- Bluetooth connectivity for BIAS Amp app for iPad and iPhone
- Comes with BIAS Amp plugin (VST/AU/RTAS/AAX) and standalone app
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- 600 Watts RMS @ 8 Ohms, 300 Watts @ 16 Ohms
- Hi-Z impedance 1/4 inch input
- Effect send and return 1/4 inch TRS
- Headphone output 1/4 inch TRS
- XLR balanced and 1/4 inch TRS line out
- External pedal 1/4 inch TRS
- 5 pin connectors for MIDI In/Thru/Out
- USB connection for BIAS Mac and Windows
- Bluetooth connection for BIAS iPad and iPhone
- 7.5 x 12 x 6 in. (314 x 190 x 153 mm)
- 17 lbs (7.7kg)

For support or warranty questions, please contact the manufacturer:
Web: https://help.positivegrid.com/hc/en-us

No longer available at zZounds

In most cases, a product is unavailable because it has been discontinued by the manufacturer