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Based on price data from 2 merchants for "Positive Grid BIAS Mini 300-Watt Bass Head". Prices shown reflect NEW condition. Tracking began Apr 2, 2026.

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Description

The Positive Grid BIAS Mini 300-Watt Bass Head is a compact powerhouse designed for bassists who crave versatility without the burden of hefty equipment. Weighing in with the capability to deliver a robust 300 watts, this mini bass amplifier is more than capable of driving any 4-, 8-, or 16-ohm speaker cabinet with ease. At the heart of its innovation lies the BIAS Amp Pro software, which allows you to craft and fine-tune your custom amplifier designs, offering an unmatched level of control over your sound. Whether you're capturing the essence of your favorite vintage amp or exploring entirely new tonal landscapes, the BIAS Mini Bass Head is your gateway to sonic freedom.

With the ability to store up to eight presets, you can seamlessly switch between tones in an instant—ideal for dynamic live performances. The amplifier's Amp Match technology is a standout feature, enabling you to replicate the sound of any amplifier you love, making it an invaluable tool both on stage and in the studio. Plus, with access to the expansive BIAS ToneCloud, you can download thousands of custom amp models crafted by musicians around the world, or share your own creations with the community.

The BIAS Mini Bass also integrates effortlessly with external gear, featuring an effects loop for pedalboard integration, a built-in noise gate, and a direct output for PA systems or recording setups. Its connectivity options, including USB and Bluetooth, ensure that you can manage your presets and updates on the fly, even from your iOS device.

Key Features:

  • 300-watt power amplifier suitable for 4-, 8-, or 16-ohm cabinets
  • Integration with BIAS Amp Pro software and app
  • Stores 8 customizable presets
  • Amp Match technology for tone replication
  • Access to thousands of amp models via ToneCloud
  • USB and Bluetooth connectivity
  • Built-in noise gate and effects loop for versatility
  • Direct output for seamless PA system integration
  • MIDI input for expanded control options

Product specs

Type Solid State
Number of Channels Single, 16 onboard presets
Output Power 300W @ 4 ohms, 150W @ 8 ohms
Compression Compressor/Noise Gate (Bias Amp software)
EQ 3-band EQ (built-in), 2 x 8-band Parametric EQ (Bias Amp 2 Pro)
Amp Modeling Amp Match technology (Bias Amp software)
Inputs 1 x 1/4" (instrument)
Outputs 1 x SpeakON-1/4" combo, 1 x XLR (line out)
Headphones 1 x 1/8"
Effects Loop Yes
USB 1 x Type B
Bluetooth Yes
MIDI I/O 2 x 1/8" (In, Out)
Footswitch I/O 1 x 1/4" TRS (presets, tones)
Footswitch Included No
Software Bias Amp 2 Pro (desktop), ToneCloud (online access)
Cooling System Over-temperature Protection, Side/Rear Air Vents
Power Source Standard IEC AC cable
Height 2.12"
Width 10.5"
Depth 9.5"
Weight 5.2 lbs.

FAQs

What is the output power of the Positive Grid BIAS Mini 300-Watt Bass Head?

The Positive Grid BIAS Mini 300-Watt Bass Head delivers 300 watts of power at 4 ohms and 150 watts at 8 ohms, making it suitable for various performance settings.

Does the Positive Grid BIAS Mini Bass Head support amp modeling?

Yes, this bass head features Amp Match technology via the BIAS Amp software, allowing users to model and match different amplifier tones.

Can I use the Positive Grid BIAS Mini Bass Head with headphones?

Yes, the amp includes a 1/8" headphone output, enabling silent practice sessions.

Is there an effects loop on the Positive Grid BIAS Mini Bass Head?

Yes, the Positive Grid BIAS Mini Bass Head includes an effects loop, allowing you to integrate external effects into your signal chain.

Does the Positive Grid BIAS Mini Bass Head have Bluetooth connectivity?

Yes, the amp features Bluetooth connectivity, providing convenient wireless control and streaming options.

What software comes with the Positive Grid BIAS Mini Bass Head?

The amp comes with BIAS Amp 2 Pro software for desktop use and access to ToneCloud for online tone sharing and downloading.

Positive Grid

Positive Grid

BIAS MINI Bass Amplifier Overview | Positive Grid

Video thumbnail for BIAS MINI Bass Amplifier Overview | Positive Grid by Positive Grid

BIAS MINI Bass Amplifier Overview | Positive Grid

Positive Grid

Positive Grid

Video thumbnail for Positive Grid BIAS Bass Amp Mini | Review by Guitar Interactive Magazine

Positive Grid BIAS Bass Amp Mini | Review

Guitar Interactive Magazine

Guitar Interactive Magazine

Reviews

PROS

  • Versatile amp modeling software BIAS Amp2 included

  • Easy preset changes via Positive Grid ToneCloud

  • Powerful 300-Watt output in a compact design

  • Exceptional tone crafting capabilities with Amp Match

  • Portable, significantly reducing gear load for gigs

  • Bluetooth and MIDI for easy control and tone loading

  • Can accurately model and improve upon original amp sounds

  • Suitable for both bass and guitar, enhancing versatility

  • Offers a wide tonal palette with sixteen presets

  • Built-in parametric EQ for in-depth tone shaping

CONS

  • Warranty does not cover second-hand purchases

  • Initial setup can be complex, requiring software tweaking

  • Amp matches may need adjustments when exported to hardware

  • Learning curve to fully utilize amp building features

Critic Reviews

Reviewed: Positive Grid BIAS MINI Bass and Guitar Head - Mixdown Magazine

mixdownmag.com.au

The Positive Grid BIAS Mini 300-Watt Bass Head is a powerhouse of digital versatility, offering a staggering range of amp models and user-friendly presets that cater to both bassists and guitarists alike. Its lightweight, robust design makes it an ideal companion for touring musicians seeking to streamline their rigs. The intuitive software interface allows players to craft unique sounds effortlessly, while the practical three-band EQ ensures quick adjustments during live performances. However, the sheer volume of options can be overwhelming, and some musicians may find the initial setup daunting. Overall, this amp strikes a commendable balance between innovative features and real-world functionality, making it a worthy contender for modern musicians.

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