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

[Kapo_Polenton]

The specs are all over now anyway.. Iread some guys talking about the extra gain stage on the marshall forum. What they are missing are some of the little tweaks and added components to the recipee which give the sound the nasal cut. I see a 34# voiced amp/JCM800 with extra gain stage that can be brought in as the final product.

[ezs]

How does the pdf spec sound??? I was going to toss it in a 4 stage cath follower 50w JCM800 I hardly use.

Like i said in thread, if that was brainzy's choice, I'll respect it.
I'm still expecting some help with The mods I am doing to make the pre in my Jet city into the pre of the #39. I have the Pdf that EZsemanate made for the S.I.R super lead and have changed the values of the Jet city adoringly. So thing is I don't want to make a new thread because the schematic i modded for the jca is basicly the same as the specs in that pdf, i feel that I would be betraying trust if i posted it. So where do i go for help? PM?
Also can any one explain how the plexi/800 switch worked and how the 4th tube on/off worked? (there was a layout on page 43 or 44 of the original thread)

[edge11]

Well i havent tried it yet and since i dont think I'll have enough cash to buy a jcm 800 any time soon I'm probably going to incorporate the pdf mods into a peavey windsor or a jet city amp jca20, both can be had at about 2-300$.
I am also tweaking it a but to fit my needs (making the extra tube switchable, making the bypass cap on the extra tube switchable and making the tine stack switchable between superlead and super bass specs, hope it doesnt get noisy!)
Btw has any one tried using a lower gain tube for teh extra stage? ( I think staalhoofd Did) How did that turn out?

[edge11]

http://www.slashsworld.com/equipment/th ... se-closed/" onclick="window.open(this.href);return false;
The plot thickens, Who is Glenn Buckley?

[ezs]

Ok, I finally wanted to get this couriosity out of the way. Not being an AFD freak or player I just wanted to feel the mod. Its allright, quiet, a little more hair than 2203/04. Not over the top, good rock tone. Its the player who made that mod famous for sure.

How does the pdf spec sound??? I was going to toss it in a 4 stage cath follower 50w JCM800 I hardly use.

Like i said in thread, if that was brainzy's choice, I'll respect it.
I'm still expecting some help with The mods I am doing to make the pre in my Jet city into the pre of the #39. I have the Pdf that EZsemanate made for the S.I.R super lead and have changed the values of the Jet city adoringly. So thing is I don't want to make a new thread because the schematic i modded for the jca is basicly the same as the specs in that pdf, i feel that I would be betraying trust if i posted it. So where do i go for help? PM?
Also can any one explain how the plexi/800 switch worked and how the 4th tube on/off worked? (there was a layout on page 43 or 44 of the original thread)

[Staalhoofd]

Btw has any one tried using a lower gain tube for teh extra stage? ( I think staalhoofd Did) How did that turn out?

Yes, it works great.

[Staalhoofd]

What they are missing are some of the little tweaks and added components to the recipee which give the sound the nasal cut

The nasal cut is crucial to the sound. If they don't know how to get it, then they don't have THE sound

[6burgh]

+1.
That's right on brother. It's relatively easy to hear right off the bat if the amp has the nasal cut. It really shines on the neck pup which is really the nuance about it all. Also, lots of amps will get 'close' with 1/5 type chords played low on the neck. It's those single notes and high chords that really spell out the differences.

Still betting the collective hear will produce a better sounding amp (not to mention the quality of the workmanship)

[antosimoni]

hey folks, Axl is searching for a guitarist...

[Kapo_Polenton]

The sound definitely are the single notes on the neck pup.. for that, you need the amp to be voiced on the nasal side. Staalhoofd, I hope to have my caswellian abomination backup this weekend. I may need you to give me a pointer or two once it is up but I'll try to start with a clip for you guys.

Axl is looking for a guitarist? Uh Oh, I bought tickets to the Ottawa show in two weeks so he better get one quick..

[Staalhoofd]

Just PM me and I'll help you out

[908ssp]

http://www.slashsworld.com/equipment/th ... se-closed/
The plot thickens, Who is Glenn Buckley?

I suppose it is possible that Slash didn't notice that the tremolo [#39] front panel is 3 inches longer than the front panel of a [#36] SuperLead seems to indicate his level of inebriation. Or the numbers painted on the sides. So we assume the sound had to be the same anyway.

[Kapo_Polenton]

Funny how Slash keeps saying it was a JCM800... primarily because it makes sense to sell it as such seeing as how the peamp was cascaded alla 2203 style and because they already have a large run of these in production and it will be easy to mount the additional gain stage in the 100 watt chassis. If they had been smart they'd have a 1959 amp that is switchable between the bright channel and the mod. (like SDM and others have already done) Now that would be marketing.. a cool looking retro vintage head. Maybe it can be "aged" to make it look older. Sell like hot cakes! As for Buckley, well that article pretty much spells it right out that Levi did the majority of the work. Maybe Levi really will be coming out with a new amp in 2010... he might just be the mystery designer and engineer behind this amp? Wouldn't that be interesting eh? Bainzy hurry up and unveil your mystery plans for 39/36 on your site!

[edge11]

Just PM me and I'll help you out

Thanks man, will do.

[paulster]

Btw has any one tried using a lower gain tube for teh extra stage? ( I think staalhoofd Did) How did that turn out?

Yes, it works great.

+1. I like a 5751 in there for the additional stage only.