Positive Grid Bias Head Processor

Electric Guitar Amp Head

  • Use Amp Match to record or download any tube amplifier sound for use with the BIAS Head processor
  • With Amp Design, design your own dream amplifier and synchronize unique presets in real time
  • ToneCloud allows you to share your own customed presets and download thousands of Amp Match models from legendary studio musicians and other guitarists
  • Hi-Z impedance instrument input: 6.3 mm jack
  • Send and return effect loop: 6.3 mm jack
  • Headphone output: 6.3 mm jack
  • Direct output: Balanced XLR and unbalanced 6.3 mm jack
  • 6.3 mm Jack foot switch input
  • 5-Pin MIDI in / out / thru
  • USB connection with BIAS Mac and Windows
  • Bluetooth connection with BIAS iPad and BIAS iPhone
  • Dimensions (HxWxD): 314 x 190 x 153 mm
  • Weight: 7.7 kg

Further Information

Design Desktop
Tube(s) No
Amp Modeling Yes
Effects No
Headphone Output Yes
Direct Out Yes
MIDI Interface Yes
Integrated Expression Pedal No
Connections for Pedals or Switches Yes
Aux-Input No
Integrated Tuner No
USB-Port Yes
Drum-Computer No
2 Customer Ratings:
  • 5
  • 4
  • 3
  • 2
  • 1
4 /5
  • handling
  • features
  • sound
  • quality
Total
handling
features
sound
quality
very impressed
The Original Stig, 31.01.2020
bought this after, A. being tired with transporting and lugging heavy amps and cabs about, B. tiring of unwanted tonal changes from speaker cabs when turning up the volume on my valve amp ( so bought the processor as running through a Headrush FRFR12 and don't need the power amp version, which also means spending less ) and C. after watching reviews and being highly impressed with the possibilities that it promised tonal replication of real valve amps, which I have to say to my ears of 48 years of playing, even after barely just scratching the surface in conjunction with the Bias Pro pedals as regards tweaking amp models and downloading and tweaking amp models is highly impressive when used with the included redeemable Bias Amp2 and Bias Pedal software bearing in mind you can adjust and change out amp components inc valves (preamp and power ), tone stacks, rectifiers, adjust bias settings compression, gain, distortion, ect.ect,ect.,the tweaking capabilities are endless, being able to tweak existing amp models, and amp matched ones basically designing your own amps from the ground up.
The only gripe I have is that the instruction manual however in depth it appears seems to be lacking in the fact that to me the guys at Positive Grid assume you already know steps 1 and 2 when trying to do something, MIDI instructions are very vague for someone who's never used it before, so feeling very much in the dark of where to start.
One annoying thing was that the Bias FX software is not apparent enough that only works with computer based version of Bias Amp and cannot be applied to amp models then uploaded to the unit, but external pedals or rack stuff have to be used, so I have purchased all 3 of the Bias Pro versions of the Distortion, Delay and Modulation which have MIDI capabilities and are superb being able to do the same level of tweaking and creating matching and downloading as the amp models, absolutely amazing stuff.
,
and can't believe how real it sounds once you get into tweaking and adjusting to your required taste.
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$605 €516.38
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Phone: +49-9546-9223-20
FAX: +49-9546-9223-24
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