• TalkBass has been independent since 1998. Add your voice.
    Create a free account to reply to discussions, view embedded media, and browse with fewer display ads.
    Join freeLog in
    Want zero display ads or expanded classifieds tools? Compare plans.

Fender Rumble Club

What's the difference between "sounding flat" and "acoustically flat"? Do you mean that "acoustically flat" could be even different settings from our approx. 10/2/2/10 (actually 10/1:30/2/9:30), assuming nothing has changed in production? I believe our old Actual Flat settings were found by adjusting the EQ knobs while on the o-scope to get the flattest graph without regard to hearing judgements. How will yours differ in methodology?
.
The method used in the charts was measuring the fx output. So they were measuring the electrical signal. This is fine, but it doesn't account fir the sound coming out the cab.

I will measure the actual sound and see what settings nake the "sound " flat".

That way user have both. They can set the amp flat or, set the whole rig sonically flat (which is more useful in my opinion.) Just because the amp is relatively flat doesn't mean the sound is. I think it's pretty close. We will see.
 
  • Like
Reactions: ratdoc
You're right, Goner, I haven't found that distinctive cloth anywhere, either!

B-but, ... uh, ... I, uh, thought, uh, you was goner use yer Ka$ino grille cloth to cover yer Rumbles to make Rum$inos, and then get a big hunka Fender cloth to make yer Ka$ino into a Ka$umble? No? :confused:
.
Nah. I wouldn't wanna risk lowering the value of the Kasino by modding it.
:roflmao:
 
  • Like
Reactions: G-Dog
Cool, dragon lady! You are correct that at least one silver Rumble grille cloth was spray painted black by an anonymous Rumbler (right, @iagtrplyr?). :thumbsup:

There are also several examples of different cloths used in the Rumble Artwork - Continued section of the Wiki. But relatively few give the source of their materials, which are readily available from most sewing and crafts stores. ;)
.
Guess I didn’t scroll far enough - I got as far as the one that looked like a vintage tv on little peg legs and started drooling.
 
  • Like
Reactions: trseal and G-Dog
The method used in the charts was measuring the fx output. So they were measuring the electrical signal. This is fine, but it doesn't account fir the sound coming out the cab. ... ...


Our old graphs are mostly from the FX Send, as well. But, there's also a Comparison of Output Connections graph for FX Send, XLR Out (including HPF & cab sim), and Headphones Output (also with cab sim).​

... ... I will measure the actual sound and see what settings nake the "sound " flat".

That way user have both. They can set the amp flat or, set the whole rig sonically flat (which is more useful in my opinion.) Just because the amp is relatively flat doesn't mean the sound is. I think it's pretty close. We will see.


So, you're going to mic the speaker and graph that? What about the mic's frequency response? Can you, somehow, compensate for that, or something? :confused:
.
 
Rumble gig sighting !

Saw Mike Morgan and the Crawl yesterday outdoors . He's a Texas blues guitar player . Three piece band , bass , drums and guitar . They are on a 12 gig tour and have to haul their gear in an extended van . The bass player was playing a nice Jazz bass and I was somewhat surprised at his deep tone , not what I expected , perfect for his band sound . There was a building behind the stage with big windows and it was hot so I went in to cool off right behind the stage . I looked at his amp from behind and noticed it was a Rumble 500 . Perfect for a touring band . Not my tone but I can surely see how players like them .
They were great and so was the bass sound .
Go Rumble!
 
Last edited:
Our old graphs are mostly from the FX Send, as well. But, there's also a Comparison of Output Connections graph for FX Send, XLR Out (including HPF & cab sim), and Headphones Output (also with cab sim).​




So, you're going to mic the speaker and graph that? What about the mic's frequency response? Can you, somehow, compensate for that, or something? :confused:
.
Yes, because I wont be using any ole mic. I will using mics specifically designed for measuring. They are calibrated to within a fraction of a db. I use them with a VERY high end sound card and a smaart based software system. This little setup is ~ $4000 and specifically built for this kind of thing.

My mics are on loan right now to a studio. Thats why i just used what i had on hand for the other measurements and ehy the results werent clear.
1000010916.jpg
 
I don't know if they used pink noise or sweeps amd I ca tell ya, not all pink noise is created equally. It should be. It's a mathematical formula that dictates what pink noise should be, but ive seen pink noise vary quite a bit across frequencies.
You are correct that not all pink noise is equal. Yes there are a couple slightly different formulae that give us pink noise--particularly that one-dimensional and two-dimensional pick signals are not the same. There is also a random variable in the equations, and the output can certainly vary depending on the random number generator used in the calculation. It is also possible that there was some post processing, gating, filtering, that could alter the source signal used in the tests.
 
  • Like
Reactions: Miles_ONeal
Cool, dragon lady! You are correct that at least one silver Rumble grille cloth was spray painted black by an anonymous Rumbler (right, @iagtrplyr?). :thumbsup:

There are also several examples of different cloths used in the Rumble Artwork - Continued section of the Wiki. But relatively few give the source of their materials, which are readily available from most sewing and crafts stores. ;)
.

And it looks as good as the day I spray painted it!

IMG_0408.jpeg
 
UPDATE: Had to f---* with a coupla settings as the night wore on(I can't get to the amp while we're playing w/o causing a substantial delay between songs), but finally 'got it right' by the third set. Just minor adjustments. As expected, I used BRIGHT for "presence" 'cos the room swallows up highs.(The tweeter adds an annoying-and unwanted-distortion as mentioned in the 'book of words'). I've never liked the amp's sound with it on. And I didn't use the one on the R112 cab when I had it.
It was kinda fun playing through the 200c, but the 100 is enuff for the room and is easier to move. I mean, I had the GAIN and MASTER both ~9-10 and it was pumping out plenty o' bass. Besides, it's only a difference of 40W between them. The next 5 gigs will be through the R100.:thumbsup:
*ool
Sorry I missed that one Mike, was home fighting a head cold through the weekend.
 
Yes, because I wont be using any ole mic. I will using mics specifically designed for measuring. They are calibrated to within a fraction of a db. I use them with a VERY high end sound card and a smaart based software system. This little setup is ~ $4000 and specifically built for this kind of thing.

My mics are on loan right now to a studio. Thats why i just used what i had on hand for the other measurements and ehy the results werent clear.
View attachment 5480979

I'm not a technical guy at all, but wouldn't the measurements be dependent on the room, and even different placements within the same room? Just curious...
 
Sorry I missed that one Mike, was home fighting a head cold through the weekend.
Who won?;) Seriously, no fun. I've had to do few gigs with a cold/whatever. IDK what my voice sounded like out front, but to me I sounded like hammered crap.
We had a fairly good crowd for a Saturday-Friday's the biggie. I think they were just glad to be outta the house and not getting drownindated.
 
  • Like
Reactions: 13bass
I'm not a technical guy at all, but wouldn't the measurements be dependent on the room, and even different placements within the same room? Just curious...
It would indeed. You can close mic it and get better results, but I will be taking the unit out into an open field to take these measurements. I will get the cab a meter off the ground to get the ground out of the measurement as well.

I will be taking measurements with the cab on the ground as well since that's how most people use it.
By doing it this way, I get a truer measurement and will know the settings it takes to get it reasonably acousticly flat.

This gives a uniform starting point no matter what room you wind up in.

I will also be taking measurements in my personal room so I can find flat for that specific room.
Depending in how bad that room is, I may use a 31 band eq in front of the cab strictly for room correction purposes and use the eq on the cab strictly for tone. This isnt necessary by any means. It's just something I like to do.
 
It would indeed. You can close mic it and get better results, but I will be taking the unit out into an open field to take these measurements. I will get the cab a meter off the ground to get the ground out of the measurement as well.

I will be taking measurements with the cab on the ground as well since that's how most people use it.
By doing it this way, I get a truer measurement and will know the settings it takes to get it reasonably acousticly flat.

This gives a uniform starting point no matter what room you wind up in.

I will also be taking measurements in my personal room so I can find flat for that specific room.
Depending in how bad that room is, I may use a 31 band eq in front of the cab strictly for room correction purposes and use the eq on the cab strictly for tone. This isnt necessary by any means. It's just something I like to do.
I kinda hate to bring this up-and it's cool you know how to do all this and have access to equipment to do it with.
I certainly support the idea of getting the sound(s) you want out of your gear. But. In my experience in 57 years of playing bass, the audience doesn't know-or care-about the bass unless: (A)it's not there; (2)the bassist f---s* up badly; or(III)is Sir Paul or Sting. Those are big parts of my choosing Rumbles for my amplification. They sound damn good with very little tweaking based on room acoustics; they're comparatively light weight for the oomph available; they're reasonably priced; and-very important-they don't sound like 'pegs(personal taste).

I tried a few different combos when I decided I needed to replace my heavyweight gear(all our gigs are one-niters, load-in/load-out, no opportunity to set up early). I bought an Ampeg B112-:meh:-and later traded it for some PA [stuff]; then a P____ MAX110(still have it as an emergency backup); then I tried a coupla Rumbles (100 and 200c). Liked 'em both, bought the 200c 'cos it has extension speaker capability. Actually liked the tone of the 100's 12" speaker better. And, as described B4, if I'd known of the daisy chain 'trick', I'd've bought 2 R100s. Still plan to get another R100 "one o' these days". Maybe. Might depend on what I could get for the 200c.

*oul
 
Last edited:
I kinda hate to bring this up-and it's cool you know how to do all this and have access to equipment to do it with.
I certainly support the idea of getting the sound(s) you want out of your gear. But. In my experience in 57 years of playing bass, the audience doesn't know-or care-about the bass unless: (A)it's not there; (2)the bassist f---s* up badly; or(III)is Sir Paul or Sting. Those are big parts of my choosing Rumbles for my amplification. They sound damn good with very little tweaking based on room acoustics; they're comparatively light weight for the oomph available; they're reasonably priced; and-very important-they don't sound like 'pegs(personal taste).

I tried a few different combos when I decided I needed to replace my heavyweight gear(all our gigs are one-niters, load-in/load-out, no opportunity to set up early). I bought an Ampeg B112-:meh:-and later traded it for some PA [stuff]; then a P____ MAX110(still have it as an emergency backup); then I tried a coupla Rumbles (100 and 200c). Liked 'em both, bought the 200c 'cos it has extension speaker capability. Actually liked the tone of the 100's 12" speaker better. And, as described B4, if I'd known of the daisy chain 'trick', I'd've bought 2 R100s. Still plan to get another R100 "one o' these days". Maybe. Might depend on what I could get for the 200c.

*oul
BTW, I daisy chained the 100>200c once for a potential 240W. Total overkill for the room(the biggest we regularly play). 2xR100s would be great for many of our jobs for a bunch of reasons. First, a potential 200W>2x12s. Next, even if only the upper one was in use, it'd be up where I-and the room-could hear it better. And, if my measurements are correct, I could fit bofum in my cart together with my duffel full of cables, mics, bass stand, and other [stuff] on top of them. Then another trip with the PA, mixer, table(for the mixer), mic stand, and music stand in the cart. Finally, the bass and my stool-one in each hand.