Slaving a Plexi Project

[IloveMyMarshall]

ISO box;

http://s69.photobucket.com/albums/i59/p ... U00178.flv" onclick="window.open(this.href);return false;

Mark.. here is a link to the thread about the volume pot. Any help is appreciated. I also need to send you some pictures of that other thing...

http://forum.metroamp.com/viewtopic.php ... 76#p210176" onclick="window.open(this.href);return false;

WTF was that?? LOL, line box?? with a small transformer in there, explain please?? I sure didn't get the short clip at all or was this just to show the guts??

[psychodave]

[quote="IloveMyMarshall"][quote="psychodave"]ISO box;

http://s69.photobucket.com/albums/i59/p ... U00178.flv" onclick="window.open(this.href);return false;

Mark.. here is a link to the thread about the volume pot. Any help is appreciated. I also need to send you some pictures of that other thing...

http://forum.metroamp.com/viewtopic.php ... 76#p210176" onclick="window.open(this.href);return false;[/quote]


WTF was that?? LOL, line box?? with a small transformer in there, explain please?? I sure didn't get the short clip at all or was this just to show the guts??[/quote]

Just a gut shot...

Here is a vdeo of me slaving a Cameron Modded Marshall...

http://www.youtube.com/watch?v=37DwrLTCrYg" onclick="window.open(this.href);return false;

http://www.youtube.com/watch?v=KYsjC82rjG8" onclick="window.open(this.href);return false;

[IloveMyMarshall]

ISO box;

http://s69.photobucket.com/albums/i59/p ... U00178.flv" onclick="window.open(this.href);return false;

Mark.. here is a link to the thread about the volume pot. Any help is appreciated. I also need to send you some pictures of that other thing...

http://forum.metroamp.com/viewtopic.php ... 76#p210176" onclick="window.open(this.href);return false;

WTF was that?? LOL, line box?? with a small transformer in there, explain please?? I sure didn't get the short clip at all or was this just to show the guts??

Just a gut shot...

Here is a vdeo of me slaving a Cameron Modded Marshall...

http://www.youtube.com/watch?v=37DwrLTCrYg" onclick="window.open(this.href);return false;

http://www.youtube.com/watch?v=KYsjC82rjG8" onclick="window.open(this.href);return false;

Thats what Im talking about brother!! Where can one get this iso box or whom makes it
KILLER CLIP BROTHER!!! RESPECT!!

[45auto]

like $150 worth of r&d (so to speak)

[DucRyder]

Thats what Im talking about brother!! Where can one get this iso box or whom makes it

http://www.suhrguitars.com/tonetools.aspx" onclick="window.open(this.href);return false;

[laneychris]

Slaving it into what? and are you using the iso box with that setup? sounds very good love the GL stuff..

[ericopp]

Hey all, I have an old H&K "RedBox" that delivers a line-out from the speaker signal. Problem is, it applies some EQ to simulate a speaker cab (which is OK as a last resort - but not half as kickass as my Weber loaded iso cab!).
Can the RedBox be easily modded to eliminate the EQ?

[erigm]

Rockstah,

Sorry for my slow reply. This is the thread I was talking about ( I think).

http://forum.metroamp.com/viewtopic.php?f=16&t=20611" onclick="window.open(this.href);return false;

They talk about a "reamp" box and bringing the signal down even more to instrument level and high impedance. Mark Cameron contributes in this thread too, and I think there is eventually a schematic of a type of line out with tranny, but Mark suggests some different values to get it closer to what I would assume would be the Jose line out box.

I thought Mark had at one point posted pictures of the Jose load/line out box. It might've been on the Plexi Palace BB. It wasn't even a box ...just looked like a stack of resistors chained together. I don't have the pictures though. Just remember them.

[erigm]

Check out this thread.

http://forum.metroamp.com/viewtopic.php?f=16&t=21085" onclick="window.open(this.href);return false;

It may answer the "load box" question.

[erigm]

This thread may be helpful too.

http://forum.metroamp.com/viewtopic.php ... a&start=51" onclick="window.open(this.href);return false;

Btw Mark, I think you've got some great ears, and do a very good job of trying to capture all of Eddie's tonal nuances.

[psychodave]

[quote="laneychris"]Slaving it into what? and are you using the iso box with that setup? sounds very good love the GL stuff..[/quote]

Slaving from Cameron Marshall into a Rocktorn intellifex into a Rane PQ15 into a Carvin DMC150 poweramp. Both cabs are loaded with blackback 30's. One cab is wet one dry.

[T.J.Fuller]

like $150 worth of r&d (so to speak)

I would've thought the same thing but, those little impedence matching transformers can run $80-$130 depending on the brand.Can't tell the brand from the photos.

[dnatronic]

not that i have heard yet. when u go through the front end of a stock plexi you lose all that headroom that u hear it eds sound. thats what we have been doing by adding a 330u cap to a stock plexi - trying to create that headroom - when you run in the front of another amp it doesn't have that quality that eds sound has - show me clip - lets talk about it.

http://soundclick.com/share?songid=5609241" onclick="window.open(this.href);return false;

i used a stomp box Boss EQ in between the 2 amps. plexi ->EQ-> JTM.

does running the signal through a stomp box EQ have the same effect as far as impedance matching goes?
does the stomp box act as a converter of sorts?

No, an EQ alone does not perform any impedance matching since most EQ's don't have this capability (although there may be some models that do have impedance matching in but this is not typical). The EQ does help knock down the line level signal (i.e., the voltage) down to an instrument level signal, and the EQ can be used to tweak the sound a bit to help even more - so the EQ gets you halfway there. The last ingredient is impedance matching which is what a transformer will do.

[dnatronic]

so I do disagree about the slaving idea, but to close out (it seems everyone here is sold on it) I thought I should at least provide some proof. you can only say so much before you need to back it up.

here is the best I could do for VHII. Note that I lack the compression from a loud closed-back cabinet because I recorded at low volumes with a single open-back vintage30.

as always, I run an eq before the amp.

http://www.soundclick.com/kiddangerous" onclick="window.open(this.href);return false; (dtna)

Sorry but you're not even close.


Now if the question is can someone get close without re-amping I'd say yes ask Rockstah he has some terrific clips with no re-amping. The question is did Eddie use re-amping to get some extra dimension? The consensus is building I think that he did. He did it to put the effects after the distortion and to add an EQ after the distortion. This has by the way been reported years and years ago. We're just hashing it out and experimenting to come full circle.

I wrote months ago that the reason I believe Ed runs an inverted smile on his EQ before the first amp was to keep the high end and low end from over loading the amp to keep those frequencies tight. He get the distortion by pushing the middle. Then after that amp he needs to bring the high & low ends back up so he adds a second EQ after his load box before the second amp. But that one has a smile these assumptions on my part have some evidence in the pictures of Eds EQs.

Pushing the mids up front more than the highs and the lows into a distorted amp has another effect too. It emphasizes the harmonics of the mid-frequencies generated by the distortion stage. Tom Scholz did a lot of work and research into this in the 70s and 80s and he integrated this concept into his Rockman distortion devices. Then you can rebalance the sounds post distortion using the smile EQ profile to rebalance the sound (which also helps accommodate for the Fletcher-Munson curve of the ear's response).

[dnatronic]

very kewl - so do i see a tiny transformer right there?

Rockstah - although it may have a transformer that box won't do it because it has a line out jack and not an instrument level jack. The point is to match a line impedance to an instrument impedance.

Note the following:

Line impedance = 600 ohms
Instrument impedance = 10 kohms (10,000 ohms)

Therefore the device must transform a 600 ohm output into a 10 kohm input. Check out the Radial X-Amp.

Of course, you don't need to worry about this if you have a line level input on your second amp and you use an EQ.

dnatronic