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Re: S.I.R. 100W SuperLead Schematic pt. II

Posted: Mon Sep 14, 2020 9:08 am
by juanano
sonoman1979 wrote:
Sat Sep 12, 2020 11:55 pm
I would like to know whay you guys think about it.

Greetings from Perú.

Julio
Dude, you've got it!, great sounding amp.

Saludos desde Chile
j

Re: S.I.R. 100W SuperLead Schematic pt. II

Posted: Mon Sep 14, 2020 12:45 pm
by snakepit86
sonoman1979 wrote:
Sat Sep 12, 2020 11:55 pm
Hi everybody, I hope you are all good and healthy.
I've been taking advantage of these weeks of quarantine to get my amp to sound good, I think now I'm very happy with it. Thanks Duane for all the help, guidance and patience, thanks bro!
I would like to know whay you guys think about it.

https://www.dropbox.com/s/drmi1azfx1cti ... 5.mp3?dl=0

Thanks in advance!

Greetings from Perú.

Julio
Hey man, nice audio, nice playing, can you tell us what is your mod and what did you use to record.

I find it a little hissy but real good sounding

Saludos desde Argentina! hahaha

Re: S.I.R. 100W SuperLead Schematic pt. II

Posted: Mon Sep 14, 2020 3:43 pm
by Unique
Sounds great Dude! Congrats!

Re: S.I.R. 100W SuperLead Schematic pt. II

Posted: Mon Sep 14, 2020 9:05 pm
by sonoman1979
juanano wrote:
Mon Sep 14, 2020 9:08 am
sonoman1979 wrote:
Sat Sep 12, 2020 11:55 pm
I would like to know whay you guys think about it.

Greetings from Perú.

Julio
Dude, you've got it!, great sounding amp.

Saludos desde Chile
j
Muchas gracias Juanano :thumbsup:

Re: S.I.R. 100W SuperLead Schematic pt. II

Posted: Mon Sep 14, 2020 9:24 pm
by sonoman1979
snakepit86 wrote:
Mon Sep 14, 2020 12:45 pm

Hey man, nice audio, nice playing, can you tell us what is your mod and what did you use to record.

I find it a little hissy but real good sounding

Saludos desde Argentina! hahaha
Thanks Snakepit :) At first I modded the amp based on a idea that Duane share with me, but I think that since my amp is a JTM 60 (that I have replaced OT, added choke and put a couple of 6550 tubes) converted to something similar to a JCM800 with added stage, the mod wasn't quite right for my amp, but Duane keep giving me suggestion to make additional changes and shape the tone until I got this result. I was surprised about how powerful feels that tone in the room.
For recording I use an sm57 and use a line 6 gx interface (I usea an audio technica adapter here because this is a guitar interface). Also use a 1x12 cab with WGS british lead speaker and an attenuator.

Re: S.I.R. 100W SuperLead Schematic pt. II

Posted: Mon Sep 14, 2020 9:24 pm
by sonoman1979
Unique wrote:
Mon Sep 14, 2020 3:43 pm
Sounds great Dude! Congrats!
Thank you! :rock:

Re: S.I.R. 100W SuperLead Schematic pt. II

Posted: Mon Oct 05, 2020 4:17 am
by gluke
New amp finally home!

100W JMP from November '77. Serial number within spitting distance of the real #36 so likely same day, surely same week.

Not sure I feel quite comfortable drilling the hole for the extra tube in this vintage masterpiece but a man gotta do what a man gotta do. It will be #36'ed.

Does anybody know in which of the input holes the gain extra pot was located on the real #36? (And why the hell I cannot put pictures in my posts........)

https://imgur.com/l3FQ831

Re: S.I.R. 100W SuperLead Schematic pt. II

Posted: Fri Oct 09, 2020 9:05 am
by dukeamps

Re: S.I.R. 100W SuperLead Schematic pt. II

Posted: Sat Oct 10, 2020 3:59 pm
by snakepit86
gluke wrote:
Mon Oct 05, 2020 4:17 am
New amp finally home!

100W JMP from November '77. Serial number within spitting distance of the real #36 so likely same day, surely same week.

Not sure I feel quite comfortable drilling the hole for the extra tube in this vintage masterpiece but a man gotta do what a man gotta do. It will be #36'ed.

Does anybody know in which of the input holes the gain extra pot was located on the real #36? (And why the hell I cannot put pictures in my posts........)

https://imgur.com/l3FQ831
congrats! looking good amp!
I think its the top right input or the bottom righ

Re: S.I.R. 100W SuperLead Schematic pt. II

Posted: Mon Oct 12, 2020 4:01 am
by gluke
snakepit86 wrote:
Sat Oct 10, 2020 3:59 pm
congrats! looking good amp!
I think its the top right input or the bottom righ
Thanx!

I'm working out the layout and bulding up the confidence to drill the hole for the extra tube.... I think I'll stick the added stage first like a Jose 'cause that makes the wiring alot easier.

Re: S.I.R. 100W SuperLead Schematic pt. II

Posted: Tue Oct 27, 2020 10:47 am
by dukeamps

Re: S.I.R. 100W SuperLead Schematic pt. II

Posted: Wed Nov 04, 2020 1:52 pm
by dukeamps

Re: S.I.R. 100W SuperLead Schematic pt. II

Posted: Thu Nov 12, 2020 1:32 pm
by CoffeeTones
Nice Gary Moore vibe.

Re: S.I.R. 100W SuperLead Schematic pt. II

Posted: Sun Nov 15, 2020 2:03 pm
by dukeamps
CoffeeTones wrote:
Thu Nov 12, 2020 1:32 pm
Nice Gary Moore vibe.
:toast: Coffee

Re: S.I.R. 100W SuperLead Schematic pt. II

Posted: Mon Nov 30, 2020 3:28 am
by OJHM
Hi all, my first post to this forum. Been a big Slash fan since 80's, owned multiple Marshall heads and somehow always passed the S.I.R mods. However now since the COVID I have more time for hobbies in home office. Was thinking to get an amp that has it or I can MOD. Been reading probably half of this topic but might have missed a lot of things as it is difficult to keep on track with 700+ pages. I would have three options to purchase ready made BRBS S.I.R mod.

- JMP 1959 -79
- JMP 1959HW reissue -93
- JCM800 2203 - unknown year (I am currently finding out)

#Last option#
- Get some non-modded amp and DIY

They all have the mod installed, however I need to buy half blind as I don't have option to travel to sellers location. I understand this might not be 100% nailed, but I am willing to take the risk that it requires still some fine tuning on my end. I have soldering devices but it would be my first try to mod anything on amps (have also tech to utilise but that costs of course). Looking for opinion and tips to what especially I should be looking.

What I will ask:

- Photo of the hardware
- Sound clip
- If possible, based on what schematic the mod was done

Anything else?

Generally I would prefer 2203 as there would be effects loop and separate master volume in. Not sure can I get proper S.I.R mod basis on it?