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Head-to-head · Guitar Amp Software

BIAS X vs TH-U

  • Updated Oct 2026
  • Both researched from official sources
  • 6 checks side by side
Higher score BIAS X #4 in Guitar Amp Software 9.0/10 Paid ✓ 2 of 2 features Visit Positive Grid
TH-U #5 in Guitar Amp Software 8.9/10 15-day trial Free trial✓ 2 of 2 features Visit Overloud

BIAS X leads on 3 checks, TH-U on 0, and 3 are even. Who comes out ahead on the 6 yes/no, price and count checks where we have data for both products. The editor score weighs everything else too.

Our verdict

  • Highest scoreBIAS X · 9.0/10
  • Free trialonly TH-U

BIAS X scores higher on our rubric for guitar amp software: 9.0 against 8.9 out of 10; our editors rank them #4 and #5.

BIAS X leads on amp models: 33 models versus 16 models. BIAS X leads on cabinet models: 25 models versus 15 models. BIAS X leads on effects count: 63 effects versus 16 effects.

BIAS X is the better fit for AI-assisted tone creation and deep routing. TH-U is the better fit for captured-rig playback and advanced tone shaping.

  • BIAS X fits best

    AI-assisted tone creation and deep routing

  • TH-U fits best

    Captured-rig playback and advanced tone shaping

Advertiser disclosure: iTechGuides is reader-supported. Vendors can pay for top positions in our rankings and for a place on other products' pages, and we may earn a commission when you click some links. Bought places stand at the number bought; this page and our disclosure say so. Paying vendors may get a fuller, more detailed review from our editors, and that review can change their score. How we rank.

Side by side

Feature BIAS X 9.0/10 Visit ↗ TH-U 8.9/10 Visit ↗
At a glance
Editor score 9.0 8.9
Ranking #4 in Guitar Amp Software #5 in Guitar Amp Software
Best for AI-assisted tone creation and deep routing Captured-rig playback and advanced tone shaping
Pricing model Paid Paid
Starting price $149 one-time €89 one-time
Free plan — Not checked yet
Free trial — 15 days
Deployment Cloud, Desktop Desktop, Mobile
Platforms Windows, macOS Windows, macOS, iOS
Support Docs Docs
Built for Solo, Small business, Mid-market Solo, Small business, Mid-market
Features BIAS X 2/2 · TH-U 2/2
Standalone app ✓ ✓
IR loader ✓ ✓
Specs
Amp models 33 models (best) 16 models
Cabinet models 25 models (best) 15 models
Effects count 63 effects (best) 16 effects
Plugin formats AU, VST3, AAX AudioUnit, VST, AAX64
Supported platforms macOS, Windows macOS, Windows
Our review
Pros
  • 33 amps, 25 cabinets, and 63 effects
  • Dual-amp, stereo, and parallel signal-chain routing
  • Text-to-Tone and Music-to-Tone AI tools
  • Captured-rig playback with Rig Player and extensive preset libraries
  • Flexible parallel routing, IR tools and Amp Tweak controls
  • Standalone, DAW plug-in and MIDI support across desktop platforms
Cons
  • No free plan is available
  • The one-time price is $149
  • Desktop support is limited to macOS and Windows
  • THU Premium requires a €299 one-time purchase
  • THU Metal has a narrower model and effect collection
  • The iOS version is separate from the macOS and Windows application
Our verdict

BIAS X is Positive Grid’s desktop guitar multi-effects software and plugin for creating, matching, and shaping guitar tones. It suits guitarists, producers, and recording users who want amp, cabinet, effect, and routing options in one…

Read the review →

TH-U combines amplifier and cabinet modeling, captured-rig playback, effects, impulse-response processing, MIDI control and live performance tools. It is designed for guitarists, bassists, producers and performers who want both ready-made…

Read the review →
  1. BIAS XGuitar Amp Software 9.0Paid
  2. TH-UGuitar Amp Software 8.915-day trial

Strengths and trade-offs

  • BIAS X — where it wins

    • 33 amps, 25 cabinets, and 63 effects
    • Dual-amp, stereo, and parallel signal-chain routing
    • Text-to-Tone and Music-to-Tone AI tools

    Where it doesn't

    • No free plan is available
    • The one-time price is $149
    • Desktop support is limited to macOS and Windows
  • TH-U — where it wins

    • Captured-rig playback with Rig Player and extensive preset libraries
    • Flexible parallel routing, IR tools and Amp Tweak controls
    • Standalone, DAW plug-in and MIDI support across desktop platforms

    Where it doesn't

    • THU Premium requires a €299 one-time purchase
    • THU Metal has a narrower model and effect collection
    • The iOS version is separate from the macOS and Windows application

More comparisons

Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026

Last updated · How we research and update