I agree, that one stands out from all of the others in note separation / detail and snarl.Unique wrote: ↑Sat Jun 26, 2021 5:22 pmThis sounds pretty darn good!gluke wrote: ↑Sat Jun 26, 2021 6:01 am150k and 10k/.1 sounds like this:
WTTJ:
https://youtu.be/iWcioYVXeaM
S.I.R. 100W SuperLead Schematic pt. II
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Re: S.I.R. 100W SuperLead Schematic pt. II
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Re: S.I.R. 100W SuperLead Schematic pt. II
Here are some more clips of that spec.
WTTJ:
https://youtu.be/PXaLXyjZwqU
WTTJ Solo1:
https://youtu.be/0ZbOpyuT04s
WTTJ Solo2:
https://youtu.be/FC5a0FsgICQ
Nightrain:
https://youtu.be/nKAHM2h6SX8
WTTJ:
https://youtu.be/PXaLXyjZwqU
WTTJ Solo1:
https://youtu.be/0ZbOpyuT04s
WTTJ Solo2:
https://youtu.be/FC5a0FsgICQ
Nightrain:
https://youtu.be/nKAHM2h6SX8
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Re: S.I.R. 100W SuperLead Schematic pt. II
Cool, what do you think of this spec ?gluke wrote: ↑Mon Jun 28, 2021 2:38 pmHere are some more clips of that spec.
WTTJ:
https://youtu.be/PXaLXyjZwqU
WTTJ Solo1:
https://youtu.be/0ZbOpyuT04s
WTTJ Solo2:
https://youtu.be/FC5a0FsgICQ
Nightrain:
https://youtu.be/nKAHM2h6SX8
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Re: S.I.R. 100W SuperLead Schematic pt. II
It is very full and balanced sounding, but a bit hard to play. Also still a bit hard to dial in. It has either the clarity or enough crunch.
I really wish I had a LP though to try SCOM ‘cause this is the closest I’v gotten so far.
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Re: S.I.R. 100W SuperLead Schematic pt. II
Yep its sounds close, what is the full spec now ?
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Re: S.I.R. 100W SuperLead Schematic pt. II
It is:
1k5/22uf/.022/470k+470p/5n/150k
10k/.1/.022/470k+470p/470k
3k3/.47/.022
820r
100k/.68/4ohm
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Re: S.I.R. 100W SuperLead Schematic pt. II
So there’s no magic component that will fix my slightly sucky playing in this mod either???....... there never is.....
Now I would love to try a real LP and stick a 57 in front of it!
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Re: S.I.R. 100W SuperLead Schematic pt. II
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Re: S.I.R. 100W SuperLead Schematic pt. II
Oh well, my buddy is dropping off his ‘76 this week that he wants VH-ized so I guess that’s next. But maybe if I lend him this amp he can fire it up in his studio.
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Re: S.I.R. 100W SuperLead Schematic pt. II
I don't know, this sounds like it has something going on in the low mids that just sounds a little off to me. Or it sounds like you've loaded up the preamp with all JJ preamp tubes. That's the sound I'm hearing with these takes. It's like the low mids are too thick, or a bit too pronounced, and its kind of masking the mid to high mids a bit.gluke wrote: ↑Mon Jun 28, 2021 2:38 pmHere are some more clips of that spec.
WTTJ:
https://youtu.be/PXaLXyjZwqU
WTTJ Solo1:
https://youtu.be/0ZbOpyuT04s
WTTJ Solo2:
https://youtu.be/FC5a0FsgICQ
Nightrain:
https://youtu.be/nKAHM2h6SX8
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Re: S.I.R. 100W SuperLead Schematic pt. II
Well to be honest I have no idea what pre amp tubes are in there... could be JJ for all I know....Unique wrote: ↑Tue Jun 29, 2021 7:25 pm
I don't know, this sounds like it has something going on in the low mids that just sounds a little off to me. Or it sounds like you've loaded up the preamp with all JJ preamp tubes. That's the sound I'm hearing with these takes. It's like the low mids are too thick, or a bit too pronounced, and its kind of masking the mid to high mids a bit.
But it's gotten to the point where I struggle a bit to find a setting that I like for both rhythm and solos. So it usually ends up a bit more gainy than it should be. You know, when in doubt, add more gain.......
I have tried the most obvious changes to this spec as well and I keep coming back to this. Like doing 2k7/.68 on the third cathode like the FL schematic CT posted or 3k3/.68 like Duke has mentioned, but there nothing major going on with either. I keep going back and forth but .47 sounds a tiny bit tighter. .1 presence also sounds good with this spec, but when going back and forth again .68 just sounds fuller and the whole mod sounds more balanced. Adding anything now just overloads everything like we were discussing two pages ago. I also did the 120p no 150k on the first pot like mk7 and that sounds really cool, but moves it away from the AFD tones.
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Re: S.I.R. 100W SuperLead Schematic pt. II
25k / 4k7 / .1 or .68 pres and / or start minimizing the 25u on stage 1 to 10u, 5u or 2.2u. If that doesn't do it for you, try stage 1 CC reduction in increments, possibly with the 150k adjustments. I agree that you may need the low gain, China made, preamp tubes as in the 80's amps.
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Re: S.I.R. 100W SuperLead Schematic pt. II
Will see what tubers are in there and yeah I think this could be the time to look at the presence circuit. My friend just dropped of his '76 which is supposedly stock so it will be interesting to see what presence circuit is in that one as well.CoffeeTones wrote: ↑Wed Jun 30, 2021 7:59 am25k / 4k7 / .1 or .68 pres and / or start minimizing the 25u on stage 1 to 10u, 5u or 2.2u. If that doesn't do it for you, try stage 1 CC reduction in increments, possibly with the 150k adjustments. I agree that you may need the low gain, China made, preamp tubes as in the 80's amps.
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Re: S.I.R. 100W SuperLead Schematic pt. II
Opened up the ‘76. It has stock .68 presence. 5k pot with a 4k3 resistor?!?!?!?
Were they all over the place in 76-77 or is this how that wired the .68 presence?
Were they all over the place in 76-77 or is this how that wired the .68 presence?
Last edited by gluke on Wed Jun 30, 2021 3:35 pm, edited 1 time in total.