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Positive Grid BIAS Head Mini Guitar 300-Watt Guitar Amplifier Head

Everything you'd expect from a Positive Grid BIAS amp in a smaller package: the BIAS Head Mini Guitar 300-Watt Guitar Amplifier Head.


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The BIAS Head Mini Guitar packs the same advanced component emulation engine, authentic dynamic tube amp feel, and wireless connectivity as its larger siblings into a lighter, smaller amp. Ideal for gigging or recording, this small, yet powerful amp boasts a built-in 300-watt power amp, and weighs in at just over five pounds! With its user-friendly design and included BIAS AMP Pro amp designer software, there's really no limit to what this amp can do.

Easy to Use
Take one look at the front panel of BIAS MINI and you'll feel right at home, because the knobs do what you expect them to. Call up one of the 16 onboard presets and tweak the Gain, Bass, Mid, Treble, and Master just like you'd expect to on a normal tube head, push the Output button to cycle through controls for the amp, headphone and line outputs, and then get back to playing.

Small Size, Huge Tone
In the past good tone was both expensive and heavy, but BIAS MINI turns that notion on its head. With a built-in power amp rated at 300 watts @ 4 ohms, there's plenty of power on tap for medium-sized gigs and recording sessions, and at just over 5 pounds in a half-rack enclosure, there’s no longer any excuse not to take your favorite tones on the road with you wherever you go. Add to that a glitchless effects loop for your favorite effects and the ability to take pedals like a champ, and BIAS MINI makes the impossible possible.

Powerful Software
If you want to dive headlong into the world of amp customization, BIAS MINI comes with our amazing BIAS AMP Pro amp designer software ($199 value), which allows you to recreate the sound and feel of nearly any existing amplifier. Even better, it gives you the power to create an entirely new amp that is unique to you and the way YOU play.

Connect via built-in Bluetooth or USB, and open up a world of component options previously only available with a soldering iron: choose between different preamp and power amp circuits, change the tubes and transformers, add clipping diodes and try out different rectifiers - all completely authentic and all in real time. It’s like having a boutique amplifier workshop at your fingertips.

Get your Positive Grid BIAS Head Mini Guitar 300-Watt Guitar Amplifier Head today at the guaranteed lowest price from Sam Ash Direct with our 45-day return and 60-day price protection policy.

Things You Will Get:

  • Guitar Amplifier Head
  • Software License

An awesome product


The bias mini amp is perfect for someone trying to get into high end digital modeling amps on a budget. It's perfect for anyone in need of a giving amp with thousands of tone possibilities.


Akron, Ohio


BIAS Head Mini Guitar 300-Watt Guitar Amplifier Head

5.0 1


Amp Type Solid State
Channels 1
Watts 300 (@4Ω), 150 (@8Ω)
EQ Three-Band
Effects Loop Yes
Inputs 1 x 1/4" Guitar Input, 1/8" Midi In
Outputs 1 x 1/4" Speaker Out, 1 x Balanced XLR Direct, 1/8" Midi Out, 1/8" Headphone Output
Digital FX Yes
Line Out Yes
Reverb Yes
Footswitch I/O Type 1 x 1/4"
Footswitch Included No
Other Features Class D power amp, component-level emulation engine, 16 onboard custom amplifier presets (with thousands more available on ToneCloud®), glitchless Mono Effects Loop (loop does not mute at patch recall), built-in noise gate, 9 built-in reverbs, built-in Bluetooth Wireless for mobile control, USB for connecting to Desktop Mac or PC, full BIAS AMP Pro software license ($199 value), Tonecloud® Integration - backup, download and share presets on the cloud, load custom IR's, send IR's to line outputs exclusively, supports Amp Match® custom amplifier presets for direct operation
Weight 5.2 lbs.
Series BIAS
Model BIAS MINI Guitar
Warranty Info:

Limited Warranty:

Positive Grid warrants that your new Positive Grid product, when purchased at an authorized Positive Grid retailer or reseller, shall be free of defects in materials and workmanship for a period of One (1) Year from the original date of purchase. Positive Grid may, in its sole discretion, require proof of the original purchase date in the form of a dated copy of the original authorized dealer’s invoice or sales receipt.

During the Warranty Period:

Positive Grid shall, in its sole discretion, either repair or replace any product that proves to be defective upon inspection by Positive Grid. Positive Grid reserves the right to update any product returned for repair and to change or improve the design of the product at any time without notice. Positive Grid reserves the right to use reconditioned parts and assemblies as warranty replacements for authorized repairs. Service and repairs are to be performed only by Positive Grid or a Positive Grid authorized service center. Unauthorized service, repair or modification will void this Limited Warranty. This is your sole warranty. Positive Grid does not authorize any third party, including any dealer, retailer or sales representative, to assume any liability on behalf of Positive Grid or to make any warranty for Positive Grid.

Transferability/Assignment of Warranty:

This Limited Warranty is extended to the original retail purchaser. This Limited Warranty can be transferred to anyone who may subsequently purchase this product provided that such transfer is made within the Warranty Period and Positive Grid is provided with all of the following items: all warranty registration information for the new owner, and a photocopy of the original sales receipt. Warranty coverage shall be determined by Positive Grid in its sole discretion. When transferring ownership of a product that provides online connectivity to Positive Grid software or ToneCloud, it is very important that you CANCEL your online subscription(s) before transferring ownership of the product.

For additional warranty information, please visit https://help.positivegrid.com/hc/en-us/articles/214224126-Positive-Grid-Product-Warranty

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