Tone stack ?

[gtrplayr1976]

I know before I ask this that it may be considered a stupid question ,but I'm asking anyway .. What part of an amp circuit is considered the tone stack ? Is it the caps on the tone controls ?


Thanks all !

[jmaf]

I know before I ask this that it may be considered a stupid question ,but I'm asking anyway .. What part of an amp circuit is considered the tone stack ? Is it the caps on the tone controls ?


Thanks all !

The tone controls control the frequency response of the tone stack, so yes, they're a part of it. Tone stacks can be very simple or very complex, even including an equalizer, etc, but for most Fender amps it's made up of less than 10 components.

[jmaf]

Here's the world's most famous tone stack for guitar amps:

[gtrplayr1976]

Guess I should have mentioned this is a Crate BV 50H . Thanks for the info.

[gtrplayr1976]

So if I wanted to add , or change the tone use bass as an example. What would I change to get more /less bass ?

[gtrplayr1976]

This is part of the schematic with tone pots.

[jmaf]

On sectors G5 and B6 are two tone stacks I could find there....maybe there are more(or is it just 2 channels?), not familiar with that Crate.

[gtrplayr1976]

On sectors G5 and B6 are two tone stacks I could find there....maybe there are more(or is it just 2 channels?), not familiar with that Crate.

It's just the two channels. I have read that these can be modded to sound like a plexi , but they never really gave details. I thought I may just tweak the tone some.

[jmaf]

It's just the two channels. I have read that these can be modded to sound like a plexi , but they never really gave details. I thought I may just tweak the tone some.

As far as I know, the Plexis use the Bassman tone stack above(or something very similar). I just had a look at a later Plexi and it's basically the same as the 5F6-A, having increased the treble cap to 470p and reduced the slope resistor to 33K.

See:

[gtrplayr1976]

As far as I know, the Plexis use the Bassman tone stack above(or something very similar). I just had a look at a later Plexi and it's basically the same as the 5F6-A, having increased the treble cap to 470p and reduced the slope resistor to 33K.

See:[ATTACH=CONFIG]13686[/ATTACH]

So it's a matter of changing resistor, and capacitor values ?

[jmaf]

So it's a matter of changing resistor, and capacitor values ?

As far as the tone stack goes, with a few modifications it seems like you'd get a very similar circuit. I don't have experience with that particular amp though, so I can't say for sure that it'd sound more like a Plexi.

[gtrplayr1976]

As far as the tone stack goes, with a few modifications it seems like you'd get a very similar circuit. I don't have experience with that particular amp though, so I can't say for sure that it'd sound more like a Plexi.

I'm guessing if I just put better quality caps it should help. Which way do you go in value to increase a particular frequency ?

[jmaf]

I'm guessing if I just put better quality caps it should help. Which way do you go in value to increase a particular frequency ?

Check out this software: TSC

For a quick rundown on the most famous stacks, see this: Adam's Amplifiers: Tone Stacks (If on a hurry, skip to "Three Knob")

[gtrplayr1976]

Check out this software: TSC

For a quick rundown on the most famous stacks, see this: Adam's Amplifiers: Tone Stacks (If on a hurry, skip to "Three Knob")

That's funny..I just downloaded that software a few minutes ago. Thanks much for the help ,and information. I'll play around with this some ,and see how it turns out.

[jmaf]

That's funny..I just downloaded that software a few minutes ago. Thanks much for the help ,and information. I'll play around with this some ,and see how it turns out.

Cool coincidence. That nifty little program is very useful to me, I hope it helps you mod that amp to your liking. Good luck.