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

[bennyx]

the real trick of 36 are the mixers......for have the right gain must be all mixers.....but the value of bright caps for me are very low......only the last mixer have classic marshall mixer 470k/470k/470pf.....

behind first and second and behind second and third mixers must be very low bright

[giordydiver]

Studing about schematic I think this to make #34 mor similar #36 without extratube. To have a sound bigger, dark and gained change cap on 820ohm from 470n to 680n, and change 10k/100n to 8k/220n, change bring cap to 500p. What do you thing?

[bennyx]

so...i have remove 470n on 820......

https://www.youtube.com/watch?v=MWSPLLCYrIQ

[CoffeeTones]

Benny, just giving a constructive viewpoint - your last two or three clips don't sound right for AFD. The mid and top peaks are not right, the bass is too loose. IMO, 2n2 bypassing the 470k is too much with the .68uF presence. Presence with .68uF needs to be set nearly on 10 to get good top end. As you know, a .68uF or a larger value cap bypassing the 820R will tighten the bass but the smaller value will bring up the mid peak. A 100k after the master volume will tighten bass as well as keeping the PI input from getting slammed with too much signal.

[bennyx]

Last clip have 100n presence...afd sound don't have bass......is the same old story, you listen the setting not the real voicing of amp.....this clip have mid on 5.....treb on 4....afd sound don't have top end, but 36 have high trebble like 34......are a very bright amp....the spectrum analisys of "36 wttj slash track" say that don't have frequencies over 6000 hz....so i have cut high trebble with amp eq...34 and 36 sound more similar as you think....the voice of the stages are the same in both amps....the Levi's idea was create an high gain amp with 10k added stage....like Caswell 39....but more manageble.....not a modern top end higain amp....if you want i can make some samples with different settings of same scheme.....

I also bring a shield trick to 33pF (now 47pF) ....probably cut too much and sound too on mids

[bennyx]

other thing: Slash set many amps with treb on 4-4,5 and pres 6.....all the old records are treb cut.....in this way he have the mid bass effect voicing classic on Slash sound

https://www.youtube.com/watch?v=8GtgcJ4BUEA

https://www.youtube.com/watch?v=Vj7_A-3rar4

[pjoliver182]

Hi guys - nice to see everyone still modding and some new names in the thread

[pjoliver182]

What schem would you recommend for building preamp with #34 and #36 mods in one?
Maybe 2203/#34/#36 or something like that but for only preamp without power section, not full amp.
I want to build it right from the start. I don't want to tweak my amps.

If you want to be satisfied then you have to learn to tweak your amp. I started from a kit amp from metro and a soldering iron. No experience at all. I had to learn what every component and connection in the amp was and there relationship to one another. It can take years of tweaking and learning to accomplish what you want. It wasnt easy or fun a lot of times. It can be very frusterating and hopeless at times. But all the hard work and endless and I mean endless hours of experimenting and tweaking have paid off. There are a ton of people here that are willing to help and share knowledge, which I personally am very thankful for.


But now I have a 3 channel footswitchable dual master volume kick ass monster of an amp that kicks the shit out of anything you can buy. And that to me makes it all worthwhile.

Amen to that brother!!

[RagnarMarGunn]

so...i have remove 470n on 820......

https://www.youtube.com/watch?v=MWSPLLCYrIQ

Sorry Benny, you're drifting away from a good tone. I was trying to find your old Youtube vids but they .. along with your Facebook vids have all vanished. Hopefully it's just your recording equipment but this doesn't sound convincing

[bennyx]

I have understand that the value of shield triks are very important....first stage must be very cut so i decided to use a big cap, second stage use a 22-33pf maximum....on last clip i have used a 47pf but probably is too big.....none ear the right mid bass that i call " honk" effect.....the vocal mid bass that do caracter of Slash sound....that mid bass are a mix of shield trick, 100n and 2n2 on mixer..... None search this.....all search bright and bass.....

[bennyx]

Sometimes i ask me "you listen original sound in real time for compare the clips?"

[dukeamps]

Here is a clip from a 3 stage AFD mod I'm working on, JMP 50w clone, RFT el34s, speaker g12h30 heritage, mic sm57.

New clip with small tweak,

http://soundclick.com/share.cfm?id=13236058

[stoof]

Benny, on your last clip, that sounds good, I feel there's way too much gain.

We believe this amp is a very high gain, but a friend of mine sent me this short clip, taken from AFD

https://soundcloud.com/thedefibrillators/slash-36

Both are "A" chords, and we feel the amp tone, and I feel the gain is not that "gainy". What do u think ?

[bennyx]

Benny, on your last clip, that sounds good, I feel there's way too much gain.

We believe this amp is a very high gain, but a friend of mine sent me this short clip, taken from AFD

https://soundcloud.com/thedefibrillators/slash-36

Both are "A" chords, and we feel the amp tone, and I feel the gain is not that "gainy". What do u think ?

I was both gain at 10....right for wttj setting, not right for all afd songs...nighrain probably record with gain at 7....all solos was record with hi gain...you feel too gain on my clip but is the same of wttj record....problem isn't gain but what you feel....if the sound have more bass you feel more gain....less bass you feel less gain.....the clip that you have shared don't have bass as i say....compression of distorsion are on mids and trebble....36 sound little thin, are cut on bass and high....sound only on mid bass, mids and high mids...the signal on first and second stages must be very dark for cut hiss and fastidious high mids

[herbvis]

https://www.youtube.com/watch?v=TDIGO0deU6I




Heres a rough test clip. Ill get a better one up this weekend.