Hello fellow Blackstar users,
For my first forum post I'd like to share my findings with you having today changed the valves/tubes in my Studio 10 EL34 combo:-
I purchased my amp used about 4 months ago and whilst I'm mostly happy with it I always look for things to improve.
My amp came with a TAD ECC83WA in the preamp and a Ruby EL34BHT in the power section - As I bought my amp used I am not too sure if these are stock or not?
Anyway today my GE JAN 5751 and Tung-Sol EL34B arrived and I couldn't resist putting them in as soon as possible.
I don't think I'm qualified enough to comment on any tonal difference between the valves but my intentions were to tame the gain just a bit in order to improve clean headroom.
After swapping out the valves I've found that the amp now operates more like a 2 channel amp with the "standard" channel staying clean even with the gain maxed out and the drive switch now acts as my dirty channel - I'm a bedroom player so my master volume rarely goes above 9 o'clock.
As I run pedals for high gain and fuzz I'm more than happy with how the amp now sounds - I can play with a sweet clean setting, footswitch in the drive and ride the volume on my guitar to get a little dirty and then kick on any additional drive I need with pedals.
I read somewhere on this forum or another that the Studio 10 series are cathode biased so I don't think I need to do anything else with the amp but swap valves? Sounds good to me as it is anyhow!
Just sharing because unfortunately it seems that there is little/no info on these fantastic amps and there may be others out there with a curiosity to satisfy much like myself.
Happy playing people!
5751 vs 12ax7 findings
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- Posts: 6
- Joined: Wed Mar 08, 2023 8:39 am
The 5751 offers a cleaner tone and less distortion than the 12AX7 since it has a lower gain. Players who like a tone with less overdrive and more transparency may find this advantageous. contexto unlimited
It is true that knowledge not everyone knows. Without the ECC83WA TAD, what would it be like?
death run 3d
death run 3d
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- Posts: 9
- Joined: Thu Mar 09, 2023 2:13 am
This post is a very detailed review of an important topic. I feel like I have improved my knowledge fnf after reading it.
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- Posts: 4
- Joined: Wed Aug 31, 2022 10:44 am
As long as your amp is cathode-biased and you've swapped strands of the valves correctly, you shouldn't need to make any additional adjustments.
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