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

[herbvis]

https://twitter.com/MarshallAmpsUK

Its official. Looks like the jub is getting a reissue

[bmwfreq]

Yep! They're $1899 at Sweetwater.

To get one or not to get one...

Does this mean we have to start a new forum? How were Slash's 2555's modified?

[gibsonclassic2001]

Im not a fan of that 91-93 live tone from the jubs.
It got even worse when izzy left and they just boosted slash volume and low mids even more to cover Gilby a bit.

I like 36 at the whiskey
And the Ritz show is really great jcm tone .

The uyi tour tone is hit or miss

[djseban]

Frank confirmed the hot shield on #34.

Hmmmmmmm. Well; all I can say is, my #34 mod sounds closer to the actual #34 with the shield connected to ground, than it does with the shield connected to pin 1 of V1a. The difference is night and day on my amp.

I'm just saying....

Plus; the AFD100 doesn't have a "Hot-shield". Just something to think about.

Hmm, I don't think, that grounding shield of signal cable is a good idea in #34. At least my amp sounds like shit without hot-shield, reminds me greatly of AFD100, on which I haven't very good opinion. But from what I saw what's going on with amplifiers being modded, one can sound extremely good with hot-shield and another one will just bring the pain to your ears when you hit the strings. I think it's just the matter of luck on hitting the jackpot with parts/transformers/valves. If mod suits your ear without shield-trick, then it's awesome

About AFD100, well, for me, "#34 mode" is actually #34 with its balls cut out. Look at the schematic, 0.68u820r in preamp, 470p instead of 47p on PI and not only that. They just messed it up on entire line. And the way they do the shield-trick substitute... It just isn't right. I think AFD100 just isn't good material for #34 to be based on. Levi confirmed the #34 specs at some point (as I recall when Santiago released it) and I doubt that it's fake. At least for me it sounds entirely like #34 from AFD Investigation video.

[bmwfreq]

How DO they do the hot-shield substitute in the AFD100??? I've looked at the schematic for hours on end, and I haven't seen any attempt at a hot-Shield. Can you cut and paste that part of the AFD100 schematic here for me?

[djseban]

How DO they do the hot-shield substitute in the AFD100??? I've looked at the schematic for hours on end, and I haven't seen any attempt at a hot-Shield. Can you cut and paste that part of the AFD100 schematic here for me?

As I said it's just substitute. As I recall, on earlier pages it's very similiar "safe" version on shield trick, but it just sounds not right for me. I tried AFD100-way shield-trick on my #34, and indeed it adds some of this characteristic wah sound, but it isn't entirely sounds like properly done shield-trick.

It's just this marked capacitor:
http://i10.photobucket.com/albums/a132/ ... .40.05.png

My best

[Unique]

Hey Everybody!

I noticed that there is still no love for the AFD here. Well, I'm not hear to change your minds, but I just wanted to share some thoughts and a clip of mine. I got my amp modded a few months back and it made a world of difference. As you guys know I was here trying to learn about these mods and what I could do to make mine sound right. After carefully studying the schematic for the AFD and the one Santiago posted, and researching the forum I found that there was only 2 small changes that needed to be made to make it sound like the real #34. These changes also made the #36 mode sound so much better. It now sounds pretty darn close to the real #34. To be honest with you, I haven't spent much time in #36 mode because I love #34 so much it's hard to pull away from it. At this time I don't have a whole lot of samples recorded since I've did the mod, but I do have one that I did a couple of weeks back for a friend that I can share and let you guys be the judge for yourselves. The clip I did was the solo for "I Hate Everybody But You" from the first Snakepit album. I feel this song is one of the best examples of #34 where there isn't a whole lot of processing going and would be a good one to do a comp to. In this clip I'm in the left speaker, and Slash is on the right.

Here:
http://www.soundclick.com/player/single ... 31847&q=hi

Btw, I wanted to recommend the guy who did my mod for those of you who may not be comfortable working on a pcb board like I was. He did a fantastic job and I think he is a forum member, his name is Corey Wheeler out of St. Pete, Fl. So if your in the area and looking for help, this is the guy to go to.

When I opened this amp up it wasn't hard to find what I wanted to do, but there just wasn't much room to do it and I felt that it was a little to much for me at this time. The inside of this amp looks like a map taken out of the movie Tron. Here is some inside pics of the mod:

"Sorry, the board attachment quota has been reached."

Well... I guess I'll try to upload them later.

[gibsonclassic2001]

How DO they do the hot-shield substitute in the AFD100??? I've looked at the schematic for hours on end, and I haven't seen any attempt at a hot-Shield. Can you cut and paste that part of the AFD100 schematic here for me?

As I said it's just substitute. As I recall, on earlier pages it's very similiar "safe" version on shield trick, but it just sounds not right for me. I tried AFD100-way shield-trick on my #34, and indeed it adds some of this characteristic wah sound, but it isn't entirely sounds like properly done shield-trick.

It's just this marked capacitor:
http://i10.photobucket.com/albums/a132/ ... .40.05.png

My best

That is just 220p like the vertical jcm 2203 100p.
The safe mode is not made with those pins .

The safe mod sound pretty good.

I think the 1000p over plate that afd100 use is pretty strange to.
34 didnt have that either.

[djseban]

Hey Everybody!

I noticed that there is still no love for the AFD here. Well, I'm not hear to change your minds, but I just wanted to share some thoughts and a clip of mine. I got my amp modded a few months back and it made a world of difference. As you guys know I was here trying to learn about these mods and what I could do to make mine sound right. After carefully studying the schematic for the AFD and the one Santiago posted, and researching the forum I found that there was only 2 small changes that needed to be made to make it sound like the real #34. These changes also made the #36 mode sound so much better. It now sounds pretty darn close to the real #34. To be honest with you, I haven't spent much time in #36 mode because I love #34 so much it's hard to pull away from it. At this time I don't have a whole lot of samples recorded since I've did the mod, but I do have one that I did a couple of weeks back for a friend that I can share and let you guys be the judge for yourselves. The clip I did was the solo for "I Hate Everybody But You" from the first Snakepit album. I feel this song is one of the best examples of #34 where there isn't a whole lot of processing going and would be a good one to do a comp to. In this clip I'm in the left speaker, and Slash is on the right.

Here:
http://www.soundclick.com/player/single ... 31847&q=hi

Btw, I wanted to recommend the guy who did my mod for those of you who may not be comfortable working on a pcb board like I was. He did a fantastic job and I think he is a forum member, his name is Corey Wheeler out of St. Pete, Fl. So if your in the area and looking for help, this is the guy to go to.

When I opened this amp up it wasn't hard to find what I wanted to do, but there just wasn't much room to do it and I felt that it was a little to much for me at this time. The inside of this amp looks like a map taken out of the movie Tron. Here is some inside pics of the mod:

"Sorry, the board attachment quota has been reached."

Well... I guess I'll try to upload them later.

There is no reason, that AFD100 couldn't sound like real #34 if modded. Basically AFD100 is just modded JCM800 with many many fireworks like autobias, power control and awesome case . In stock version, it's modded wrong though

[Unique]

I agree, before I modded mine it was just too muddy sounding and this you could say 'clogged up' the wah effect sound on #34 mode. After the mod it had more of that effect present on the #34 mode and started sounding like what it should, and the #36 mode cleared up a lot. If I turn my bass way down, it starts to sound like #34 with a little snap to it and less wah sound. No doubt the way this amp was built is a far cry from the original, but in reality, all of the right parts and values are there now (for #34 that is). The difference I hear now between my amp and what is on the old demo recordings, and master albums is very little. I would compare it to the differences you hear between 2 capacitors of the same value, but made out of different materials. And of course the playing, which can have a tremendous effect on the sound.

[bmwfreq]

I can actually increase or decrease the wah effect in my amp simply in the way I strum the cords. A light sweeping strum will increase the wah effect. So, there is some truth to the fact that the sound or tone that Slash has is determined by his playing style (fingers.) Some people are looking completely to the amp to give them this effect, and it's just not going to happen.

A lot of Slash's tone on the UYI recordings is accomplished with speaker distortion. Well, I am not in a living situation that would allow me to even come close to turning my amp up much past .3. That's right, POINT THREE. Because of this, I have to expect that my amp is never going to sound exactly like the real deal. Basically put, there are other factors that we all have to take into account when trying to replicate Slash's UYI tone.

Something else I want to touch on. I have found that using a preamp setting anywhere above 1.2 to 1.5 does not accurately replicate the #34 tone (at least for me). I would be interested to see (for instance) PureMojo make another #34 recording comparison between the AFD100 and his JCM 800 mod using the 1.2 to 1.5 preamp settings. What do you think, PureMojo??? If you look at the front panel of the 34, the preamp setting is actually marked with a magic marker at about the 1.5 knob setting. So, I really don't understand why the preamp setting of 3 was ever adopted. Does anyone know?

[budubum92]

...

[Prowler]

Sounds awesome budubum92!

Here is a new clip of my #34:

http://1drv.ms/1tcSdk4

I used Kjaerhus Classic Reverb Plugin.

[bmwfreq]

Sounds awesome budubum92!

Here is a new clip of my #34:

http://1drv.ms/1tcSdk4

I used Kjaerhus Classic Reverb Plugin.

Did you mod your amp, or did you have it done?

[Prowler]

Did you mod your amp, or did you have it done? [/quote]

I modded it myself