I get it. I thought you will show me how to cut the headphone output out from the circuit, so I can reserve some power juice  :cheesy:

I guess I'll try that send return mod. Thanks Phill, you rocks ! :dbtu:

Hi Phil

Thanks for your reply, appreciate it much.
I know, I play numbers of amp  :cheesy:. For 15watts, it is quite nice. Even a friend who use an old JTM45 like it.
Now, I can understand your input for mod 1 and 2. Would you explain how to slave the headphone ouput?

Thanks,
Bob

greeting everyone

I'm new in this forum. Happy to find this forum as I'm a beginner and learning to mod my amp.

Currently I'm using Trace Elliot Brat 15R, that I really like. If possible, I need help to mod it so :
1. it has more presence,a bit brighter. CMIIW, I tried to change treble bleed cap on gain(C28) and volume control(C25) with no good result. I dont want to change the tonestack, as i like how it sound. just need more sparks. any possible mod to do this?
2. on boost mode (overdrive mode), the background hiss is very much audible when I turn volume pot over 12 o'clock. Grounding is ok. Considering this is 20 years old amp, is there any part i need to check/replace ?
3. I play it thru 2x12 cab. Is it possible to have more punch from it?  :cheesy:

many thanks,
Bob