Head-to-head · Guitar Amp Software
BIAS X vs TH-U
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 |
|
|
| Cons |
|
|
| 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 → |
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
- BIAS X9.0/10 · Paid
A broad guitar rig for AI-assisted tone creation, routing, and DAW workflows.
Visit Positive GridFull verdict → - TH-U8.9/10 · 15-day trial
A deep guitar and bass rig platform for players who want detailed control.
Visit OverloudFull verdict →
More comparisons
- Helix Stadium Native vs BIAS X
- Helix Stadium Native vs TH-U
- AmpliTube 5 vs BIAS X
- AmpliTube 5 vs TH-U
- GENOME vs BIAS X
- GENOME vs TH-U
- BIAS X vs TONEX
- BIAS X vs Helix Native
All guitar amp software comparisons → · Full ranking →
Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026
Last updated · How we research and update





