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Author Topic: The Robben Ford-quest; how close can I get on a "standard" OTS?  (Read 37013 times)
Steven_nl
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« Reply #30 on: November 17, 2010, 09:46:27 AM »

What about the cleans?
Obviously a good OD tone is inmportant but so are the cleans. Does this setup work well with a C'lator?
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ampkits
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« Reply #31 on: November 17, 2010, 11:09:25 AM »

Hi Steven

Cleans aint that bad as well. Good harmonics in the cleans of this one.

I am quite surprised abt comments on how it's supposed to be quite bright without the clator.

I dont find it is. The S&M would be brighter, for example.

The Clator would be good, we even make custom head cabs now so that the Clator fits in right inside. No more complaints abt hard to carry the clator around? Smiley

Thanks!

Nik
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erwin_ve
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« Reply #32 on: November 17, 2010, 11:21:19 AM »

Hi Steven

Cleans aint that bad as well. Good harmonics in the cleans of this one.

I am quite surprised abt comments on how it's supposed to be quite bright without the clator.

I dont find it is. The S&M would be brighter, for example.

The Clator would be good, we even make custom head cabs now so that the Clator fits in right inside. No more complaints abt hard to carry the clator around? Smiley

Thanks!

Nik

Nik, The 68pF on the master is passing through lots of highs. That's making the amp very bright. If the master cap is omitted, the amp is less bright. Using a Clator rolls off the highs off the bright cap.
I have my amp with these specs for more than a year now and without a dumblelator/clator the od sound is unuseable
« Last Edit: November 17, 2010, 11:31:45 AM by erwin_ve » Logged
mcinku
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« Reply #33 on: November 17, 2010, 11:41:15 AM »

Guys you're making me want to mod my OTS...
 Angry


 Wink
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Steven_nl
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« Reply #34 on: November 17, 2010, 12:54:47 PM »

You're making me want to ask Erwin to mod my amps LOL Grin

I dunno.

I'd like to get an amp with the OTS OD, but with less "in your face" cleans, without sacrifising brightness/sparkle (using a C'lator).
Not so much the direct cleans of a Twin (bit harsh), but a bit mellower/milder in the attack of the string. Hard to discribe; a bit of natural compression maybe?

The OTS is so direct is very unforgiving in a sense.

Would that be a Bluesmaster?

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mcinku
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« Reply #35 on: November 17, 2010, 01:11:43 PM »

Interesting how different we are... the perfect amp for me would be OTS clean and bluesmaser OD.  Wink

I like the mids in OTS clean... it makes a SC guitar sound bigger but it gets to muddy in OD... that's why I prefer bluesmaster OD. Much more clearer and string definition.

...I can't say if bluesmaster is what you seek... you need to try one out.
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bluesfendermanblues
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« Reply #36 on: November 17, 2010, 01:18:19 PM »


I like the mids in OTS clean... it makes a SC guitar sound bigger, but it gets to muddy in OD...

have you tried the Gil Ayan mod on the OD channel, which will filter out the lowest frequencies and make the OD cleaner.
Its simply a 4,7n-47n capacitor with a 10m resistor at the input of the OD.
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Emiel
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« Reply #37 on: November 17, 2010, 01:30:39 PM »

Hi Steven,

Maybe the #183 would be something for you. To me it sounds more compressed and mellower. You don't need a C-lator though you have to mod your OTS heavily. You could try to change output tubes to EL34 or you could go back to the Sovtek 5881's. I personally really like the OTS in a band context, that 'directness' helps you to cut through. The EL34's make the OTS sound brighter and I think less direct. I wouldn't say my OTS with EL34's is so 'in your face'. It still has that creamy OTS od sound but I'm going to change to 6L6's soon... (also to hear the difference).
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mcinku
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« Reply #38 on: November 17, 2010, 01:36:14 PM »

have you tried the Gil Ayan mod on the OD channel, which will filter out the lowest frequencies and make the OD cleaner.
Its simply a 4,7n-47n capacitor with a 10m resistor at the input of the OD.


No I have not tried this one yet... perhaps I should.
 Wink
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Steven_nl
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« Reply #39 on: November 17, 2010, 01:48:01 PM »

Hi Steven,

Maybe the #183 would be something for you. To me it sounds more compressed and mellower. You don't need a C-lator though you have to mod your OTS heavily. You could try to change output tubes to EL34 or you could go back to the Sovtek 5881's. I personally really like the OTS in a band context, that 'directness' helps you to cut through. The EL34's make the OTS sound brighter and I think less direct. I wouldn't say my OTS with EL34's is so 'in your face'. It still has that creamy OTS od sound but I'm going to change to 6L6's soon... (also to hear the difference).

@Emiel could I just stick those EL-34's in? that would be simple to try. (re-biassing wouldn't be a problem
@Mcinku Yeah I would love to try a BM. I have tried a regular HRM but didn't like it much.

« Last Edit: November 17, 2010, 02:08:51 PM by Steven_nl » Logged
bluesfendermanblues
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« Reply #40 on: November 17, 2010, 03:40:36 PM »

I have tried a regular HRM but didn't like it much.

Did you tweak the trimmers ? IMO you can get a regular HRM to sound like a NON-HRM, easily
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Steven_nl
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« Reply #41 on: November 17, 2010, 03:51:17 PM »

Not my amp (Erwins). It's maybe a matter of taste. I felt it sounded a bit more agressive. On the other hand. there are so many things that have an impact. If you stick different tubes in, the amp will sound different.
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erwin_ve
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« Reply #42 on: November 17, 2010, 04:00:45 PM »

Not my amp (Erwins). It's maybe a matter of taste. I felt it sounded a bit more agressive. On the other hand. there are so many things that have an impact. If you stick different tubes in, the amp will sound different.

Steven, Reading your wishes, sounds like you want more compression and a brighter clean channel.
Maybe a resistor instead of a choke(more compression, I dislike it, but maybe you like it) will do the trick together with a EVM12L speaker.
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Steven_nl
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« Reply #43 on: November 17, 2010, 04:19:36 PM »

Hi Mate!

There are so many options. :-)
I'm not sure I like the EVM very much. A friend of mine has an OTS with a EVM but it was a bit sterile sounding for my taste.

this is a clean sound I realy love.

A Bludo Bluesmaster I think. Plus hands plus hands (and axe) did I mention hands?
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ampkits
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« Reply #44 on: November 25, 2010, 05:48:29 PM »

Hi,

As for the FM50 brightness, it's more preamp zing than brightness I think.

I do have 68pf across the MV.

However, birds sang to me saying the bright cap on the vol pot should be higher, instead of 120pf.

If so, it'd make for brighter amp for sure, if the bright switch is used.

Maybe I should tweak to have both 120pf and 180pf bright caps (3 way switch) on the Vol pot.

On the matter of #183, I do like it a lot, actually. You might want to try different settings on the OD controls, instead of the soft V positions like usual.  Turn in up a bit more.

It's quite smooth, with a lot of body.

As for tweaks, I guess it's not a matter of just changing tubes. You need to also tweak other places.

Of importance, I have found lately, is the wall supply.

If you ever thought that the amp sounds so different day to day, check your wall.

These days, with more and more ppl in my area, at times my V1 plates drop to abt 180V, and that does spoil things.

I have ordered a regulator from my tranny winder. It allows for adjustments to the wall voltage into the amp so that I can set correct voltage, each time.


Thanks!

Nik
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