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DIY Stompboxes => Building your own stompbox => Topic started by: Voltron on December 18, 2014, 07:25:06 PM

Title: Good CLEAN CHANNEL amp and speaker sim out?
Post by: Voltron on December 18, 2014, 07:25:06 PM
Hey guys,.

I have a friend that is always in situations where there's just a PA system. Only thing available was a Behrionger amp sim pedal that he doesn't like. Not beacuse it's behringwr but he says it's more like a distortion pedal and doesn't have a very good clean setting that works with his delays, reverbs, whatever pedals. Actually he likes it as a distortion unit.

Anyways. I remember there was lots of amp sim pedals based on JFETs from runoffgroove, I rememebr they had a cab sim too called hotdog or something... can't really find it.

I think I can tweak one of the amp JFET desings to work as a clean channel (as I recall they all were overdrive channel based), add a tone stack the cab sim a couple buffers and should do pretty good.

Is there already any available design around with all these features togheter?

ALL help and suggestions wellcome!.
Title: Re: Good CLEAN CHANNEL amp and speaker sim out?
Post by: chumbox on December 18, 2014, 09:09:40 PM
Hey Voltron

I built a ROG Professor Tweed with their Condor Cab sim at one point for a friend.  Super clean, a little twangy and sounded great if you like a fender vibe.  Think there is some mods on that page from memory about turning the Condor into more of a Marshall cab sim too with more bottom end.

Good stuff.
Title: Re: Good CLEAN CHANNEL amp and speaker sim out?
Post by: Voltron on December 18, 2014, 10:39:19 PM
Hey Chumbox, thanks for the suggestion.

How good is the input of the Tweed profesor? how good it does with effects at the input?

My friend only uses a handfull pedals, i think some boss overdrive, a danelectro analog delay and a boss reverb. Seems like the behringer amp sim screws him when using delay and/or reverb.

I guess the dynamic range squashes down when using those effects at the input with that pedal.

Do you know if there is something like the tweed prof. but based on a marshall clean channel?. For some reason my friend likes a lot the clean channel on his Marshall Valvestate. ( I think it's a 80W combo from early 90's ).
Title: Re: Good CLEAN CHANNEL amp and speaker sim out?
Post by: chumbox on December 18, 2014, 11:41:55 PM
I only tested the tweed with a couple of overdrives which were fine, beyond that I can't say sorry but I imagine it would be ok.

If you just on the ROG page and look under schematics you'll see theirs a Marhshall Eighteen and the Thor (kind of a Marhsall 100W lead).  They're not clean channels per say but just turn down the gain.

I know there is vero layouts of most ROG projects if you google them.
Title: Re:
Post by: Johan on December 19, 2014, 12:54:08 AM
The valvestate  series schematics are available online at dr tube. The clean channel is pretty simple and there is a speaker sim built in ( labelled line out).
J