AccuGroove El Whappo Grande 21"

[dadabass2001]

Hi Guys,
 
Point of Query: I thought the 14th fret on the G is A 440 htz? Last time I tried to use a tuning fork (Admittedly a cople of years ago) this seemed to be the case. Or maybe my ears are fried? Perhaps it's the middle of May. Look, there goes a robin!  
 
Mike (The foggy one)

[David Houck]

Bob, thanks again for a detailed and educational post.  Your discussion of partials makes sense; in the little bit of web searching I did yesterday, none of the discussions I found was as clear as the one you have presented.  And your interpolated hash marks will be very helpful!
 
But.  Given what you have written above, it would seem logical to conclude that the result of the 6k high pass filter experiment should be that no notes below an open G should pass.  But as previously reported, when I ran the experiment, a very high pitched version of every note from open E to 24th fret G did pass.
 
At this point, it might be helpful if others in the group were to try the experiment.  And when you do, the speaker does need to be at ear level; if it's on the floor and your standing above it, it's harder to hear.
 
Oh and I don't take you to be sarcastic or critical, I also find this quite interesting and very helpful.  I'm always working on my tone; it seems everytime I plug in to practice, I'm tweeking my tone settings, and paying attention to how the fingers strike the strings and to the resultant effect on tone and noise.  So this can only be helpful.  And I do very much appreciate your taking the time do craft your responses.
 
Thanks.

[David Houck]

Mike; if you can see birds flying out of your speaker cabinet when you are playing, then you must have a really really nice tone!
 
Bob is right; the open G is 98Hz and the 12th fret octave is 196Hz.  The 14th fret A should therefore be 220 rather than 440.

[adriaan]

Perhaps I'm running into some funny sort of mental limitation, but I have problems believing the correct pitch for bass guitar to be such that 440 Hz is the A above the octave on the regular G string. Ever played along with a real piano? They go down an octave and more below the regular E string, or at least that's my perception of things (not talking about a cheap upright). Double basses also sound as if tuned an octave lower than a bass guitar.

[dnburgess]

I'm with the other Dave - 14th fret on the G string is 220Hz.  
A440 would therefore be 26th fret on the G string or on a six string bass 21st fret on the C string.
 
David B.

[bsee]

Adriaan,
 
A full-sized piano with 88 keys has just over seven full octaves of range.  It starts on an A note (27.5Hz) and goes up to a C (4186Hz).  A four string bass has just over three octaves of range.  Each additional string with a standard tuning gets you one note short of half an octave, so a six string bass (or guitar) has almost exactly four octaves of range.
 
These numbers leave plenty of room for a piano to go a bit lower, and significantly higher, than the range of any standard issue guitar or bass.  That A440 is just above the middle of a piano, so a bass guitar with a low B just about matches the lower half of the piano's range.

[David Houck]

But Adriann has a point about the sound of the 14th fret A.  The fundamental is 220, but as Bob pointed out, the first partial after 220 is going to be 440.  If you roll the filter all the way down, the 220 becomes much more pronounced; roll the filter all the way up and the 440 becomes more evident.
 
The open E on an upright bass emphasizes the fundamental much more than the open E on an electric bass, unless you roll off the filter trying to get that upright tone.

[adriaan]

Dave, I'm going to try turning down the filter, see if that zooms in on the fundamental. Ah, to dream of ebony neck lams!

[bigredbass]

I'm staying out of the math, except to wonder what is a bass doing out to 15 or 16khz . . .
 
My impressions of ELF/BagEnd:
 
--I totally agree that the concentric high drivers are MUCH smoother than the typical horn in most bins, which I routinely dislike.  I did like the 410 Hartke bin with the 5 in the middle, as it was smoother than a horn (and I'm no Hartke fan, but I do like that bin).
 
--The ELF bottom pass is very smooth:  You don't really hear it at first, since we're usually used to ports, folded horns, transmission lines, all designs with a lump in their sonic signature.  It really plays with your head that this is a sealed cabinet, just big enough to hold the speaker.  
 
The double cabinet 18 with the 210/highdriver cab on top would be my dream rig.  Just as going from a head/cab to a component rig is a big jump in fidelity, from a regular component rig to the ELF/Bag End rig is that big a jump again.  But remember, it's like the tone in a good recording studio. With the right power, it just gets louder and will not break up . . . which is a revelation for a lot of us.  There are lots of people who will not like it, it just won't be grainy and lumpy enough. If you need lots of skank and sturm and drang, keep the SVT or your SWR rig.
 
It's like going from Jack Daniels to Crown Royal.
Jack will sure get the job done, but Crown is just sooooo smoooooooooth . . .  
 
J o e y