dual eq on ODS?

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Roe
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dual eq on ODS?

Post by Roe »

a stupid question:

why not build a ODS with dual eq (one for each channel)? Some schematics show two tonestacks on some of the later amps.

Another issue: why not bypass the first eq when using the OD channel? (e.g. by lifting the ground connection)
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norburybrook
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Re: dual eq on ODS?

Post by norburybrook »

Roe wrote: Thu Jan 07, 2021 10:48 am a stupid question:

why not build a ODS with dual eq (one for each channel)? Some schematics show two tonestacks on some of the later amps.

Another issue: why not bypass the first eq when using the OD channel? (e.g. by lifting the ground connection)
the HRM versions do this, the HRM gives you a tone stack for the OD. You can bypass the first tone stack with the PAB. Some people build with the TMB from the HRM board on the front panel.


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ChopSauce
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Re: dual eq on ODS?

Post by ChopSauce »

You mean an Eq. different from the HRM one?

That's something that has already been suggested. I remember having read about a James Tonestack & I'd rather be tempted with an Hot Rodded Vox (HRV) myself - not just kidding... 8)
Roe
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Re: dual eq on ODS?

Post by Roe »

norburybrook wrote: Thu Jan 07, 2021 10:58 am
Roe wrote: Thu Jan 07, 2021 10:48 am a stupid question:

why not build a ODS with dual eq (one for each channel)? Some schematics show two tonestacks on some of the later amps.

Another issue: why not bypass the first eq when using the OD channel? (e.g. by lifting the ground connection)
the HRM versions do this, the HRM gives you a tone stack for the OD. You can bypass the first tone stack with the PAB. Some people build with the TMB from the HRM board on the front panel.
yes, this is just what I was looking for - thanks! Any info about this?
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10thTx
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Re: dual eq on ODS?

Post by 10thTx »

I'll offer a thought about this. IF your amp has an FX loop (passive or active) try a 10 band equalizer in it and see what tone shaping you prefer.

I have a dumblish inspired amp. I use a James tone stack in the OD channel because I can dial in mid-boost or mid-cut tones. It's dumble heresy but works well for me.

with respect, 10thtx
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martin manning
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Re: dual eq on ODS?

Post by martin manning »

Roe wrote: Thu Jan 07, 2021 11:26 am
norburybrook wrote: Thu Jan 07, 2021 10:58 am
Roe wrote: Thu Jan 07, 2021 10:48 am a stupid question:

why not build a ODS with dual eq (one for each channel)? Some schematics show two tonestacks on some of the later amps.

Another issue: why not bypass the first eq when using the OD channel? (e.g. by lifting the ground connection)
the HRM versions do this, the HRM gives you a tone stack for the OD. You can bypass the first tone stack with the PAB. Some people build with the TMB from the HRM board on the front panel.
yes, this is just what I was looking for - thanks! Any info about this?
HRM amps (see Bluesmaster, e.g.) already have this covered.
Last edited by martin manning on Thu Jan 07, 2021 9:30 pm, edited 1 time in total.
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pompeiisneaks
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Re: dual eq on ODS?

Post by pompeiisneaks »

ChopSauce wrote: Thu Jan 07, 2021 10:59 am You mean an Eq. different from the HRM one?

That's something that has already been suggested. I remember having read about a James Tonestack & I'd rather be tempted with an Hot Rodded Vox (HRV) myself - not just kidding... 8)
I seriously thought about doing something like this but got told that the vox amp doesn't fit itself well to the OD that dumble used so I stopped the plan, I even had a schematic I drew up for it and was going to attempt a build... just stopped when people told me that it had been done by someone and the OD didn't sound good at all...

maybe someone should do it again, to remind us all :D

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ChopSauce
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Re: dual eq on ODS?

Post by ChopSauce »

Thx for the information, Phil... 8)
talbany
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Re: dual eq on ODS?

Post by talbany »

Roe wrote: Thu Jan 07, 2021 10:48 am a stupid question:

why not build a ODS with dual eq (one for each channel)? Some schematics show two tonestacks on some of the later amps.

Another issue: why not bypass the first eq when using the OD channel? (e.g. by lifting the ground connection)
You have basically just described a Bluesmaster w/ Megaboost

Tony
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Roe
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Re: dual eq on ODS?

Post by Roe »

talbany wrote: Thu Jan 07, 2021 11:56 pm
Roe wrote: Thu Jan 07, 2021 10:48 am a stupid question:

why not build a ODS with dual eq (one for each channel)? Some schematics show two tonestacks on some of the later amps.

Another issue: why not bypass the first eq when using the OD channel? (e.g. by lifting the ground connection)
You have basically just described a Bluesmaster w/ Megaboost

Tony
thanks for explaining. Still I haven't seen a single Dumble or clone with a dual eq on the faceplate (I've only seen trim pots inside)
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erwin_ve
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Re: dual eq on ODS?

Post by erwin_ve »

Roe wrote: Fri Jan 08, 2021 8:25 am
talbany wrote: Thu Jan 07, 2021 11:56 pm
Roe wrote: Thu Jan 07, 2021 10:48 am a stupid question:

why not build a ODS with dual eq (one for each channel)? Some schematics show two tonestacks on some of the later amps.

Another issue: why not bypass the first eq when using the OD channel? (e.g. by lifting the ground connection)
You have basically just described a Bluesmaster w/ Megaboost

Tony
thanks for explaining. Still I haven't seen a single Dumble or clone with a dual eq on the faceplate (I've only seen trim pots inside)
Here you go: https://glaswerks.com/SODII.htm
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