Skip to product information
1 of 2

Positive Grid

Positive Grid Bias Head DSP Non-Powered Amp Match Head

Regular price RM4,560.00 MYR
Regular price Sale price RM4,560.00 MYR
Sale Sold out

Amp Match Technology

The Positive Grid Bias Head comes with Amp Match technology, allowing you to accurately capture an enormous array of tones from any guitar amplifier, be it classic, modern or boutique. It grants you the ability to load custom cab and microphone responses, and you can share or download thousands of Amp Match models from ToneCloud. The BIAS Head beautifully integrates hardware and software, bringing a huge array of downloadable and customizable tones that you can safely connect to your choice of power amp and cabinet..

Premium Components

The Positive Grid Bias Head is expertly crafted using top of the line, premium components. The amplifier is built to perform any BIAS amp presets at the highest achievable audio quality for the unit. Thanks to the built-in interface, the BIAS Head provides zero latency performance.

Detailed Amplifier Design Capabilities

Positive Grid have built the BIAS Head so that you can build and play your dream amplifier. With the ability to swap out virtual tube types, preamp sections, transformers, tone stacks and cab and mic positions, you can sculpt your sound down to the tiniest details in real time, all from the included user friendly BIAS Amp Pro software.

Extensive Controls & Possibilities

The BIAS Head comes loaded with 25 different amplifier models without even having to load the desktop or mobile software, with 5 different preamp tube emulations. On top of this, there's the standard gain, volume and equalization controls found on most other amplifiers, but also a 4 stage topology control, power amp biassing, rectifier switching and power amp soaking. You can save all of these settings for fast recall at a later date. When you add this to the incredible capabilities of the BIAS Amp Pro software, that really does result in a huge amount of customization.

For detailed information regarding the Positive Grid BIAS Amp software, please refer to the PDF just below the short description.


  • Power Amplifier: Unpowered (Requires Seperate Power Amp)
  • Voltage & Frequency: 100-240V AC, 50-60Hz
  • Dimensions (Height x Width x Depth): 7.5'' x 12'' x 6'' (314mm x 190mm x 153mm)
  • Weight: 17lbs (7.7kg)
  • Instrument Input: 1/4'', Hi-Z Impedance
  • Effect Loop: 1/4'', Send & Return
  • Headphone Output: 1/4'' TRS
  • Direct Output: XLR Balanced & 1/4'' Unbalanced
  • External Pedal: 1/4'' TRS
  • MIDI: 5-Pin Connectors for In/Out/Thru
  • USB: Connect with BIAS Mac & Windows
  • Bluetooth: BIAS Amp for iPad & iPhone