Real Marshall vs. a Modelled Marshall

Re: Real Marshall vs. a Modelled Marshall

I haven't read any of the posts yet (in case it's already been revealed), but I'm saying the Marshalltest1.WAV is the modeler. I don't like the other clip all that much (sounds muddy), but the strums at the ~7 second mark of the test1.WAV give it away to me. Scratchy high end and nasty break up that reminded me of the Spider IV I had my first year of playing.
 
Re: Real Marshall vs. a Modelled Marshall

Well, the Vox does have preamp tubes so it is one step ahead of any other kind of modeling approach.
 
Re: Real Marshall vs. a Modelled Marshall

Well, the Vox does have preamp tubes so it is one step ahead of any other kind of modeling approach.

its not a preamp tube. the digital signal is.sent through it to warm it up before it is amplified. it does not act in any way as a gain stage.
 
Re: Real Marshall vs. a Modelled Marshall

its not a preamp tube. the digital signal is.sent through it to warm it up before it is amplified. it does not act in any way as a gain stage.

It is a preamp tube, even if they don't use a preamp circuit :)
 
Re: Real Marshall vs. a Modelled Marshall

It is a preamp tube, even if they don't use a preamp circuit :)
It's more of a buffer. Just because a tube is commonly used in a preamp does not identify it as a preamp tube. For instance, some low-watt amps use the 12AU7 as a Class AB push-pull power tube.

Sent from my VK810 4G using Tapatalk
 
Re: Real Marshall vs. a Modelled Marshall

It is a preamp tube, even if they don't use a preamp circuit :)

It's a dual triode 9 pin tube. The tube wasn't created as a "preamp tube", which would imply a really limited context. We don't call transistors "preamp transistors" just because they can be used for amplification in a preamp circuit.

Also, having a single tube doesn't automatically give any amp any type of advantage over another. You can have a really good solid state amp design and a really poor hybrid design, and the poor hybrid doesn't suddenly become slightly better simply because electrons flow through a plate, grid, and cathode made out of ceramic/glass/copper (current flows in the opposite direction to electrons) instead of a base, collector, and emitter made out of silicon or germanium. If you think it does, prove it. The point is that a good amp is good regardless of the type of circuitry, and generalizations fall apart when held up against counterexamples.
 
Re: Real Marshall vs. a Modelled Marshall

no doubt that in he room, the difference is night and day between the two and the the differences are exaggerated due to the zoom recorder.

that said, the dsl crunch channel is voiced very differently from a plexi type amp. its more like a 2203 with increased low mids and low end, and less high midrange its very thumpy or boomy. It hass been difficult for me to get it to sound the way I want it to, and seems geared more towards modern crunch sounds, despite the name. It gets very thick and bloated with high levels of preamp gain, and brittle if you roll the preamp back without really pushing the master up to noon or higher.

I'm sure the oversized/deep EVH cab isn't helping.
 
Re: Real Marshall vs. a Modelled Marshall

no doubt that in he room, the difference is night and day between the two and the the differences are exaggerated due to the zoom recorder.

that said, the dsl crunch channel is voiced very differently from a plexi type amp. its more like a 2203 with increased low mids and low end, and less high midrange its very thumpy or boomy. It hass been difficult for me to get it to sound the way I want it to, and seems geared more towards modern crunch sounds, despite the name. It gets very thick and bloated with high levels of preamp gain, and brittle if you roll the preamp back without really pushing the master up to noon or higher.

I'm sure the oversized/deep EVH cab isn't helping.
What tubes are in it?
 
Re: Real Marshall vs. a Modelled Marshall

What tubes are in it?

In the Marshall?

More like what tubes -haven't- been in it...I've had the preamp filled with os mullards and jan 5751 through everything new sensor makes.

Currently Mullard RI EL34s, v1- tungsol ri, v2 svetlana, jj83s in the CF and sovtek lps in the PI. Have some JJ KT77s too. I like them..they are different, but I don't love them...they take the amp to more 6L6-ish modern area I can't quite commit to.

But the general EQ of green crunch, no matter tubes, is not really in that nmv, early mv realm. It is it's own beast. Red 2 has more of that plexi style high midrange eq..albeit with way too much gain.
 
Re: Real Marshall vs. a Modelled Marshall

I kinda like em both, but the deep growl of #2 is more desirable to me.
 
Re: Real Marshall vs. a Modelled Marshall

no doubt that in he room, the difference is night and day between the two and the the differences are exaggerated due to the zoom recorder.

that said, the dsl crunch channel is voiced very differently from a plexi type amp. its more like a 2203 with increased low mids and low end, and less high midrange its very thumpy or boomy. It hass been difficult for me to get it to sound the way I want it to, and seems geared more towards modern crunch sounds, despite the name. It gets very thick and bloated with high levels of preamp gain, and brittle if you roll the preamp back without really pushing the master up to noon or higher.

I'm sure the oversized/deep EVH cab isn't helping.

STOP THE PRESSES!

I did the C19 resistor mod about an hour ago, and I think that is the solution I have been looking for.

IDK WTF Marshall is thinking putting that resistor there into the path of the Red Channel.
 
Re: Real Marshall vs. a Modelled Marshall

In the Marshall?

More like what tubes -haven't- been in it...I've had the preamp filled with os mullards and jan 5751 through everything new sensor makes.

Currently Mullard RI EL34s, v1- tungsol ri, v2 svetlana, jj83s in the CF and sovtek lps in the PI. Have some JJ KT77s too. I like them..they are different, but I don't love them...they take the amp to more 6L6-ish modern area I can't quite commit to.

But the general EQ of green crunch, no matter tubes, is not really in that nmv, early mv realm. It is it's own beast. Red 2 has more of that plexi style high midrange eq..albeit with way too much gain.
I know I sound repetitive these days, but might I suggest the JJ ECC803S long-plate for V1 and PI? I've been loving them in Marshall-type circuits. There's something going on in the midrange that I can't describe well.
 
Re: Real Marshall vs. a Modelled Marshall

STOP THE PRESSES!

I did the C19 resistor mod about an hour ago, and I think that is the solution I have been looking for.

IDK WTF Marshall is thinking putting that resistor there into the path of the Red Channel.

C19 is actually a capacitor and, looking at the schematic, seems to be a bright cap over the gain control. Snipping that will make a decent difference.

http://music-electronics-forum.com/attachments/33886d1431127848-dsl40-60-02-v02.pdf
 
Re: Real Marshall vs. a Modelled Marshall

C19 is actually a capacitor and, looking at the schematic, seems to be a bright cap over the gain control. Snipping that will make a decent difference.

http://music-electronics-forum.com/attachments/33886d1431127848-dsl40-60-02-v02.pdf

Sorry. Im not much of a technophile :)

Thats exactly what it does, it's been discussed ad nauseum for years over on the Marshall Forum. I just finally got around to taking the plunge.

It is a SIGNIFICANT positive change both in voicing of the Red channel as well as noise/hiss.. Its like I got another amp.
 
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