Yamaha THR5/THR10 series
The Yamaha THR5/10 is a series of small modeling guitar amplifiers meant for home use. THR stands for Third Amplifier.
Models
- THR5
- THR5A
- THR10
- THR10C
- THR10X
Communication Protocol
The Yamaha THR can be controlled via USB using MIDI system-exclusive messages. The basic message has the following bytes:
F0 43 7D 10 41 30 01 XX XX XX F7
The 8th byte describes which control should be changed, the 9th and 10th bytes what its new value should be. The table below describes it in detail:
| Category | Option name | 8th byte | Values (9th, 10th byte) |
|---|---|---|---|
| Amp models | Clean | 0x00 | 0x00 0x00 |
| Crunch | 0x00 | 0x00 0x01 | |
| Lead | 0x00 | 0x00 0x02 | |
| Brit Hi | 0x00 | 0x00 0x03 | |
| Modern | 0x00 | 0x00 0x04 | |
| Bass | 0x00 | 0x00 0x05 | |
| Acoustic | 0x00 | 0x00 0x06 | |
| Flat | 0x00 | 0x00 0x07 | |
| Cabinet models | US 4x12 | 0x06 | 0x00 0x00 |
| US 2x12 | 0x06 | 0x00 0x01 | |
| UK 4x12 | 0x06 | 0x00 0x02 | |
| UK 4x12 | 0x06 | 0x00 0x03 | |
| 1x12 | 0x06 | 0x00 0x04 | |
| 4x10 | 0x06 | 0x00 0x05 | |
| Amp controls | Gain | 0x01 | 0x00 0x00-0x64 |
| Master | 0x02 | 0x00 0x00-0x64 | |
| Bass | 0x03 | 0x00 0x00-0x64 | |
| Middle | 0x04 | 0x00 0x00-0x64 | |
| Treble | 0x05 | 0x00 0x00-0x64 |
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