aens
Experienced
JTM45 is one of my favourite amps and it's been a workhorse for quite a long time for me.
Lately I found the lack of headroom problematic with this amp. I use real pedals quite a lot nowadays and the lack of headroom makes drive stacking not so easy. I recently changed to Plexi 100W model because of this.
Few tweaks you can try with JTM45:
- Change the tone-stack to Plexi 100 to get closer to the rumored "Hendrix" tone-stack. It's not 100% same tone stack values, but it's the closest tone stack we have according to Cliff. Clears up the bass and changes the tone. This also makes the "BMTP all on 10" approach work better.
- Lower the supply sag by half to emulate a solid-state rectifier (0.6-0.8 IIRC). I'm pretty sure the JTM45 model is modeled with tube rectifiers. Not sure if this is authentic or not.
- Crank the Transformer match to 1.8 to overmatch the transformer. Makes the amp more grainier.
- If you find the JTM45 model compressing too much, lower the transform match to 0.7-0.9. The JTM45 model is based on a 30W version, so it can compress the sound quite a bit.
- If the amp is too bright, turn the bright switch off. This is the same as clipping the bright cap on the real amp. It can sound dark on bedroom volumes, but if you have the chance to crank the volume up, it can sound just perfect.
- If you've lowered the treble because of too much icepick frequencies and it's still hurting your ears, use the amp eq and lower the 4k frequency. Boom, it's gone (thanks to @austinbuddy for this tip!)
Lately I found the lack of headroom problematic with this amp. I use real pedals quite a lot nowadays and the lack of headroom makes drive stacking not so easy. I recently changed to Plexi 100W model because of this.
Few tweaks you can try with JTM45:
- Change the tone-stack to Plexi 100 to get closer to the rumored "Hendrix" tone-stack. It's not 100% same tone stack values, but it's the closest tone stack we have according to Cliff. Clears up the bass and changes the tone. This also makes the "BMTP all on 10" approach work better.
- Lower the supply sag by half to emulate a solid-state rectifier (0.6-0.8 IIRC). I'm pretty sure the JTM45 model is modeled with tube rectifiers. Not sure if this is authentic or not.
- Crank the Transformer match to 1.8 to overmatch the transformer. Makes the amp more grainier.
- If you find the JTM45 model compressing too much, lower the transform match to 0.7-0.9. The JTM45 model is based on a 30W version, so it can compress the sound quite a bit.
- If the amp is too bright, turn the bright switch off. This is the same as clipping the bright cap on the real amp. It can sound dark on bedroom volumes, but if you have the chance to crank the volume up, it can sound just perfect.
- If you've lowered the treble because of too much icepick frequencies and it's still hurting your ears, use the amp eq and lower the 4k frequency. Boom, it's gone (thanks to @austinbuddy for this tip!)
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