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Post subject: Re: Tech. Question about the BDRI
Posted: Fri Apr 15, 2011 10:17 am
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Rock Star
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Bluesky, that's a nice breakdown of the Audio vs. Linear pot specs. It should prove helpful to a lot of people.

If your inclined to purchase a volume box, I'd go with a volume pedal. Foot control is nice. Be aware that placing a volume control in the loop will not be like using an attenuator. It won't sound like a tube amp being run at full tilt with all the tube saturation at lower volumes, with a volume control in the loop, It may help with the touchiness of the volume control.

It doesn't matter where the linear taper pot is used, it's the fact that it contributes to the touchiness of the volume. IMO my HRDlx should have never came home with me and I'm disappointed in myself for not taking it back before all the problems started with it. I just liked the grittiness of the clean channel after playing my sparkling clean Twin for 30 years.
It was always a hard amp for me to dial in. I was just used to how all my other amps worked.

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Post subject: Re: Tech. Question about the BDRI
Posted: Fri Apr 15, 2011 1:58 pm
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Rock Star
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63supro wrote:
Bluesky, that's a nice breakdown of the Audio vs. Linear pot specs. It should prove helpful to a lot of people.

If your inclined to purchase a volume box, I'd go with a volume pedal. Foot control is nice. Be aware that placing a volume control in the loop will not be like using an attenuator. It won't sound like a tube amp being run at full tilt with all the tube saturation at lower volumes, with a volume control in the loop, It may help with the touchiness of the volume control.

It doesn't matter where the linear taper pot is used, it's the fact that it contributes to the touchiness of the volume. IMO my HRDlx should have never came home with me and I'm disappointed in myself for not taking it back before all the problems started with it. I just liked the grittiness of the clean channel after playing my sparkling clean Twin for 30 years.
It was always a hard amp for me to dial in. I was just used to how all my other amps worked.


As I have stated before, I have no problem with "touchy" volume controls. Replacing the 12AX7 in V1 and V3 in my BDRI with a 5751 (V1) and a 12AT7 (V3) reduces the overall gain of the amp enough to move volume control operation to a more controllable part of the pot's curve. I regularly play at home with both the clean and drive volume set on "6" and Master volume set on "4". The amp is loud but not "drive you out of the house loud". It is probably quieter that when I watch a BluRay disc through my 7.1 channel home theater system (with a sub woofer that goes down to 16 Hz in room!).
:D

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Post subject: Re: Tech. Question about the BDRI
Posted: Fri Apr 15, 2011 3:47 pm
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Roadie
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RVM lead wrote:

I feel the same way. Did you notice a different (better) tone when using the Hot Plate and overdriving the power tubes?



No in fact by the time I "attenuated" it enough to use at home it sucked tone. I use pedals for OD anyway. Trying to get tube OD from a BDRI requires LOUD. I find I can good tone with just the volume box and even live having it at about 8 or 9 makes the volume control more manageable.


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