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Fender Rumble Club

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Attention: Milestone Alert! Attention: Rumble Club Milestone Alert:

The Club will soon reach 40,000 posts and is approaching 1,200 members and nearly 2.5 million views. Please take neccessary precautions!

From humble beginnings, just 7 years ago, back in the days of the venerable V2 Rumbles, came forth this gathering of Tone Questors. It's been a long and winding road. There are posts that we'll remember, some forever, not for better. We've laughed. We've cried. It's become a part of us.

Whatever The Club means to you, I thank you for being here. That is is all.

This ends this Emergency Alert.
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really! Take this card and go to the head of the line. @realmacaroni, you are now member #1179 in the Fender Rumble Club. Congratulations and thank you for supporting your local businesses. (You did get that Rumble 40 from your friendly neighborhood Pianos 'n Stuff, didn't you?) Abstinence and perseverance can make the reward that much sweeter, right? Well, that Rumble won't make you work your back 'til it's racked with pain!

And you're not just another spoke in a great big wheel, nor a tiny blade of grass in a great big field. You're among those who sing, " Oh, Lort, I want to be in that number, when my bass goes Rumblin' in!" You're a card carryin', freedom lovin', free speakin' member of one the best clubs on TalkBass! And now eligible to win one shmillion shmackeroons, along with our other members.

And please, puh-leeze!, introduce us to your Rumble's new playmates, both stringed and otherwise. You're not the only 6-slinger around here, ya know, and we gots to know what doze t'ings be?!? And, in all things, do please . . . .

Rumble On!
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Not exactly sure what that could be. Does it occur at low volumes also? Check your speaker grill to make sure it's snug. Do you have a HPF in your chain? If not, that would be the next purchase I would consider. Not terribly expensive and will tame sub sonic lows that can damage/beat up drivers.
I understand that the Rumble amps have a 2nd order HPF built in just ahead of the Delta-Comp Limiter. See the attached block diagram.
Rumble Block Diagram 2nd order filter.png
 
I understand that the Rumble amps have a 2nd order HPF built in (12 dB/8ve).
View attachment 3702102
Not sure what a 2nd order HPF is or how effective it is regarding boominess and driver damage. I wouldn't be real confident as far as that's concerned. I got a Broughton HPF and it's a great little pedal. Every gigging bass player should have one on their board.
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Not sure what a 2nd order HPF is or how effective it is regarding boominess and driver damage. I wouldn't be real confident as far as that's concerned. I got a Broughton HPF and it's a great little pedal. Every gigging bass player should have one on their board. View attachment 3702111
While I have not see any published figure for the cut-off frequency in Fender Rumble amplifiers, the effect of an additional high-pass filter, such as the Broughton, will be exaggerated by the built in HPF in the Rumble. In Kipp's photo of the Broughton HPF, you can see that its cut-off frequency can be set anywhere from 25 Hz to 190 Hz. If you happen to set the Broughton's cut-off frequency to the same (unpublished) frequency as the Rumble's built-in HPF, the result will be a fourth-order HPF, with a 24 dB per octave slope. Setting it anywhere near the Rumble's cut-off frequency will provide much more than the expected 12 dB per octave filtering of all frequencies below the cut-off that a second-order HPF is designed to provide.
 
Not sure what a 2nd order HPF is or how effective it is regarding boominess and driver damage. I wouldn't be real confident as far as that's concerned. I got a Broughton HPF and it's a great little pedal. Every gigging bass player should have one on their board. View attachment 3702111

I use this pedal with my rumble and am pleased with the results.
 
Me too. I just recently acquired it. Only used it once at rehearsal (so far) and when my tone started to get tubby, just a little turn cleaned it up nicely.
Agreed, high-pass filters can do wonders. The fact that every Rumble comes with one may account for the popularity of the Rumble sound among so many on this forum (that and the weight). And if one sounds good, then two may be even better, to a point.
 
While I have not see any published figure for the cut-off frequency in Fender Rumble amplifiers, the effect of an additional high-pass filter, such as the Broughton, will be exaggerated by the built in HPF in the Rumble. In Kipp's photo of the Broughton HPF, you can see that its cut-off frequency can be set anywhere from 25 Hz to 190 Hz. If you happen to set the Broughton's cut-off frequency to the same (unpublished) frequency as the Rumble's built-in HPF, the result will be a fourth-order HPF, with a 24 dB per octave slope. Setting it anywhere near the Rumble's cut-off frequency will provide much more than the expected 12 dB per octave filtering of all frequencies below the cut-off that a second-order HPF is designed to provide.



Attention: Rumble Club Wiki Edit Alert!

Thanks, @Bottom Octave. Your explanation of external HPF/LPF use on the built-in Rumble HPF has been linked on the Rumble Club Wiki page in the Rumble Talks section. Yours is a useful addition to our collection of HPF/LPF Rumbling info.

Thank you, Bottom, for your valuable contribution. :thumbsup:
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Get a Rumble 115 cab to go with it... they're light (literally) and light on the wallet also :thumbsup:
Thanks for the thought, but I rarely need the R112 I got to use with the 200c.[seen here next to the Kasino that is unlikely to ever leave the house again(heavy SOB)] In fact, lately the 100 is all I need except for one venue. And Wednesday night, I'll use the R40.
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