The Positive Grid BIAS Rack Amplifier is a Positive Grid amplifier, currently around $1087.10. Close alternatives include the Roland Blues Cube Artist 212 and the Wizard Vintage Modern 100W. It pairs well with the Friedman BE-OD and the Marshall Guv'nor.
Positive Grid BIAS Rack Amplifier
Positive Grid · amplifier
The Positive Grid BIAS Rack Amplifier is the rack-format member of the BIAS modelling line, built on the same amp-matching platform that analyses a target amplifier and reproduces its response rather than relying on fixed presets alone. The rack chassis is aimed at players with existing rack systems or touring setups where a rack case is the practical format. Independent coverage of this specific model is limited compared with the BIAS Head and BIAS Mini, so this description stays with what the platform and format establish rather than asserting output or feature specifics.
- platform
- modern
- high gain
- vintage
- clean
- digital
- touring
- rack systems
Good for
- Live
- Silent Stage
- Studio
Price updated Aug 26, 2026
Genres the Positive Grid BIAS Rack Amplifier is commonly used in
- Metal
cited
Inferred from shared tonal signals, not a stated genre tag. - Hard Rock
cited
Inferred from shared tonal signals, not a stated genre tag. - Alternative
cited
Inferred from shared tonal signals, not a stated genre tag.
Pedals that stack with the Positive Grid BIAS Rack Amplifier
Friedman BE-OD
Friedman
26% matchFriedman BE-OD pushes a high gain tone toward tight
Marshall Guv'nor
Marshall
24% matchMarshall Guv'nor pushes a high gain tone toward mid-forward
Beetronics Buzzter Boost Preamp
Beetronics
23% matchStack Beetronics Buzzter Boost Preamp on top and a high gain tone tightens toward clean boost
Keeley Dyno My Roto
Keeley
18% matchPut Keeley Dyno My Roto after Positive Grid BIAS Rack Amplifier in the signal chain, clear of Positive Grid BIAS Rack Amplifier's own gain stage
Dunlop MXR M299 Carbon Copy Mini
Dunlop
16% matchDunlop MXR M299 Carbon Copy Mini's own voicing points at a clean amp's front end, and Positive Grid BIAS Rack Amplifier delivers it — goes in the amp's FX loop (or last, into a clean amp)
Hungry Robot Moby Dick V2
Hungry Robot
16% matchKeep Positive Grid BIAS Rack Amplifier's high gain voice out front: Hungry Robot Moby Dick V2 goes in Positive Grid BIAS Rack Amplifier's effects loop so its ambient voice doesn't muddy it — goes in the amp's FX loop (or last, into a clean amp)
Warm Audio Pedal 76 Compressor
Warm Audio
12% matchWhat Warm Audio Pedal 76 Compressor brings here leans toward tight — that's worth building a pairing around
Benson Amps Delay PT2399 Echo
Benson Amps
tonal matchBenson Amps Delay PT2399 Echo's own voicing points at a clean amp's front end, and Positive Grid BIAS Rack Amplifier delivers it — goes in the amp's FX loop (or last, into a clean amp)
Cheaper alternatives
Positive Grid BIAS Mini Guitar 300W Head
Positive Grid
70% similarity“Independent coverage of this specific model is limited compared with the BIAS Head and BIAS Mini”
Boss Katana 50
Boss
92% similaritysimilar tone character
Boss Nextone Stage
Boss
91% similaritysimilar tone character
Similar charactersee all similar tone character →
See all alternatives to the Positive Grid BIAS Rack Amplifier (cheaper + boutique) →
Questions people ask
What are good alternatives to the Positive Grid BIAS Rack Amplifier?+
The closest matches in character are the Roland Blues Cube Artist 212, the Wizard Vintage Modern 100W, the Positive Grid BIAS Mini Guitar 300W Head. Budget picks: Positive Grid BIAS Mini Guitar 300W Head, Boss Katana 50, Boss Nextone Stage.
What pairs well with the Positive Grid BIAS Rack Amplifier?+
Strong matches from rig and tone-complementarity evidence: Friedman BE-OD, Marshall Guv'nor, Beetronics Buzzter Boost Preamp — Friedman BE-OD pushes a high gain tone toward tight.
How much does the Positive Grid BIAS Rack Amplifier cost?+
Around $1087.10 (live listing price, updated Aug 26, 2026).