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-   -   How much does the neck affect tone? (https://www.acousticguitarforum.com/forums/showthread.php?t=316570)

blaren 11-06-2013 10:12 AM

How much does the neck affect tone?
 
Been reading a lot and thinking a lot about whether or not..rather how MUCH a neck has to do with tone.
Whether one is glued-in or bolted-on doesn't seem to make a GREAT DEAL of difference as long as the actual fit is good.
However...the girth and species seem to be important tone determiners (?) where a more massive mahogany or rosewood neck can help a guitar (I'm talking mostly electrics here) sound warmer and have more sustain than say an ultra-thin maple neck and board.

A lot of members here have dog ears. They can hear minute (maybe even non-existent) changes that bridgepins make or how much better a bone nut makes their bar chords sound so much more transparent :roll eyes . Not much talk of how much difference the neck can make.
If neck mass and material can help determine how a guitar is going to sound on a solid body electric with magnetic pups that should only be "hearing" the string itself, well...on an acoustic guitar, where the guitar itself is the mic and amplifier, surely the neck must be a KEY ingredient of the tonal recipe...the big picture?

Any luthiers or builders out there ever tried different necks on an acoustic build? Did they make an appreciable difference in the guitar's tone?
Seems like a very important but highly overlooked component in the final voice of any guitar no?

The two custom builds I had done both have very thin necks (same as my Stonebridge...thinner than Larrivee's necks and maybe thinner than Taylor's too? But there is a LOT going on in my 2 customs and even with the thin necks they sound huge, loud, warm and AWESOME.
Hey did you just catch that? Taylors have thin necks and...how do they sound? Bright, thin, sparkly...
Martins (the traditional models with traditional neck profiles) sound warmer and louder and more muscular(?) than Taylors generally speaking...except probably the new(ish) Martin Performer series that have more "modern neck profiles" (thinner)...they sound closer to Taylors. Larrivees, with necks that are probably in between the Taylor and Martin thickness sound...well kinda in between the Martin and Taylor tones.?

Maybe necks don't have quite as dramatic an effect on tone as I'm insinuating but I do believe that neck mass and material can play a pretty important role in determining how a guitar sounds and that it is an area that we all too often overlook.
Whip em out fellas. Do some A/B/C/D/E and F comparing and see if you notice a pattern where your guitars with the bigger fatter necks sound..well..bigger and fatter and warmer than those thin necked gits.

We know that mass of the headstock can change a guitar's voice. They even used to sell slip-on headstock weights to increase the headstock's/neck's mass and provide warmth and sustain (coulda been just another useless gizmo). PRS's latest locking tuners (for electrics again) are kinda hybrid half open back and half enclosed. They say they are the new "low mass" PRS open back Phase3 machine heads.
Is "low mass" just a term they coined in the boardroom? Rather than just calling them open back, which might seem like a cheap cost-cutting feature to all the PRS corksniffers (I'm the president of that club) and so they came-up with the term "low mass" which makes it seem like the company made the change in order to improve tone and not just for cosmetic or profit driven reasons.

So again, what are your acoustic guitar experiences as far as neck size/mass/material versus tone and volume?
They say there is a pretty big tonal difference between a solid rosewood neck on a stock PRS CU24 and the same guitar with the standard mahogany neck. I have never had the opportunity to try a solid rw neck so I can't confirm that but...an acoustic guitar's neck probably weighs as much as the body. Surely it plays a BIG role in the guitar's tone?
The late '50s Gibsons with PAFs seem to be much more desirable than the '60-'62 PAF equipped Gibsons. We'll use ES335s as an example since the Les Pauls turned into SGs for a while in the '60s.
Maybe part of the reason is that the '50s Gibbys had the baseball bat profiled necks and the ones from the '60s had the '60s slim taper profiles. Yes magnets changed in the PAF line but not right at 1960. From what I hear, they were all over the map with all PAFs regardless of the year of manufacture. You can get a '58 PAF with A2 mags and others from '58 might have A5. A '62 PAF ...oops..a GOOD sounding '62 PAF will sound the same as a GOOD sounding '57PAF.
And not every '57-'59 PAF sounded awesome.

IDK.

Guest 728 11-06-2013 10:30 AM

The fattest guitar neck I've ever owned was on a guitar that sounded phenomenal. But how much of a role the neck played in that is anybody's guess. I've abandoned trying to determine the exact amount of influence a given component imparts on a guitar's tone. With so many variables working simulataneously and dependently on one another, it seems that any conclusion one would draw about a given guitar would be meaningless when applied to another one.

Long Jon 11-06-2013 10:43 AM

Ok. Anybody wanna commission say a Taylor BTO with maybe 4 different necks to swap around and put this theory to some scientific testing ?

Toby Walker ? He loves a/b-ing stuff ! :D

I too remember seeing ads for weights to fix on your headstock to "increase sustain" or whatever... I have also lately noticed the "low mass" improvement claims!
ONE of them MUST be right!! :rolleyes:

Rodger Knox 11-06-2013 10:51 AM

The neck has very little effect on tone in an acoustic guitar, the neck resonant frequencies don't couple with the soundboard very effectivly, so there isn't much contribution.
There will be people that hear the difference, whether it's really there or not.

Rodger Knox 11-06-2013 10:58 AM

Quote:

Originally Posted by Long Jon (Post 3684381)
I too remember seeing ads for weights to fix on your headstock to "increase sustain" or whatever... I have also lately noticed the "low mass" improvement claims!
ONE of them MUST be right!! :rolleyes:

Actually, they're both right, just not for the same guitar. The direction you need to go depends on where you start.

Garthman 11-06-2013 11:05 AM

Quote:

Originally Posted by Rodger Knox (Post 3684391)
The neck has very little effect on tone in an acoustic guitar, the neck resonant frequencies don't couple with the soundboard very effectivly, so there isn't much contribution.
There will be people that hear the difference, whether it's really there or not.

There is really nothing I can add to this fine answer ^ ^ ^^.

Long Jon 11-06-2013 11:06 AM

Quote:

Originally Posted by Rodger Knox (Post 3684396)
Actually, they're both right, just not for the same guitar. The direction you need to go depends on where you start.

I've got the large economy bottle of Snake Oil that upgrades everything I own.... Furniture, clothes, my car, my bike, this stuff'll do it all ! :lol:

Phelonious Ponk 11-06-2013 11:08 AM

I'm not a luthier and I don't play one on TV, but I suspect neck mass/material probably has a significantly larger effect on tone that nuts and saddles. What effect? How much? Who knows? Does a massive neck give you massive tone? I seriously doubt it is anywhere that simple and would bet the farm that if a good luthier wanted a big, fat, low midrange-dominant tone in a guitar with a skinny maple neck, he could do it. Because I'm sure the top and the braces have more impact, by far, than the neck. It's all navel-gazing speculatiion anyway, unless we can figure out how to do a double blind listening test with exactly the same guitar, while rapidly changing necks.

Electric guitars? Pickups win. Hands down. Everything else falls into the "think you might hear" bin.

Acoustic guitars? Strings and picks (and technique of course) have the greatest impact And I can actually test and hear. I just switched to Tusq picks after a couple of decades of 1 mm Clayton Ultems. That difference is immediately obvious and I didn't have to steam the neck loose to test it. Is it better? It is to me or I wouldn't have made the switch. YMMV. But I wouldn't seek out massive mahogany necks wth rosewood boards vs slimmer ones with ebony based on tone. Feel? Absolutely. From there, just listen.

p

Guest 1928 11-06-2013 11:08 AM

The mass and stiffness of the neck have a tremendous effect on the tone.

kayakman 11-06-2013 11:08 AM

Fat neck fat tone.

brian a. 11-06-2013 11:13 AM

All I know for certain is that a guitar with no neck doesn't sound so good and a guitar with a neck sounds better. Therefore, I must conclude that the neck has a lot to do with how a guitar sounds. ;)

Long Jon 11-06-2013 11:16 AM

Quote:

Originally Posted by brian a. (Post 3684429)
All I know for certain is that a guitar with no neck doesn't sound so good and a guitar with a neck sounds better. Therefore, I must conclude that the neck has a lot to do with how a guitar sounds. ;)

Finally, a sensible answer.

ljguitar 11-06-2013 11:18 AM

Quote:

Originally Posted by kayakman (Post 3684424)
Fat neck fat tone.

Hi k-man...

I have several thin (depth) necks with fat tone. Does that mean if they have made the necks fatter the tone would be even fatter? Oh, and two are bolt-on and two are mortise/tenon.



Athana 11-06-2013 11:27 AM

Lowden
 
I was thinking about this lately as I bought an O50 Master Sitka/Koa Lowden..
and was reluctant about the long scale neck on it and was,as an alternate, going to order a short scale Lowden.

I wanted to keep the price down but was contemplating the differences of how it would effect this Madagascar/Alpine F35 mid sized guitar….between the standard carve mahogany neck,5 piece maple neck and the limited old growth "Log" mahogany he has.
He is a good person to ask but I decided to keep this great sounding Koa and have not.

blaren 11-06-2013 11:41 AM

Quote:

Originally Posted by Rodger Knox (Post 3684391)
The neck has very little effect on tone in an acoustic guitar, the neck resonant frequencies don't couple with the soundboard very effectivly, so there isn't much contribution.
There will be people that hear the difference, whether it's really there or not.

It might not "couple with the soundboard" effectively but it might play a role in dampening or absorbing string energy and affecting sustain and or cancelling or augmenting or being "sympathetic" to some frequencies?

And as far as no one component being able to make a difference. Yeah we hear that all the time when people post questions regarding one topwood versus the next or back and sides material etc. Always the "doesn't matter...build matters more...bracing matters more...."
Well whether that's true or not, when I put together or commission a build I ALWAYS refer to each component's properties and characteristics just as much as I depend on each ingredient in a recipe to play a role in the final dish.
Each and every component affects every other as well as the end product. That's why God GAVE us Cedar (several species), Sitka and Adi, BRW and EIR, Ebony and rosewood for bridges and boards, tapered and scalloped bracing, and TWO different scale lengths and neck joins ...LOL
but seriously....each and every piece of the puzzle is important and even if it's just another piece of a blue sky, without that piece, the others around it wont fit and the whole picture will not be complete.

YOU may not be able to HEAR the changes one seemingly insignificant component (or taste it in the case of a culinary experience) makes but it WILL make a difference. Make several seemingly insignificant recipe changes, none of which you would taste on it's own....and you will change the whole dish into one that is completely different in flavor.


But either way...looks like many people believe a neck does make a big tonal difference, some say no, and others think you couldn't ever possibly know since changing necks on an acoustic is impossible?.

Personally I'm buying into the oily pitch. I don't have any guitars similar enough to compare. I have a bunch of PRSs with several different carves..2 WTs, a WF, a PT and a PR but for example the one with a WF neck is a 22 fret McSoapy Standard with P90s, fixed bridge, and a HEAVY solid one piece SALB of hog for a body where one WT necked PRS I have is maple, 24frets, on an hb guitar with trem and the other WT necked PRS is a singlecut.
Apples to oranges with all of mine.

I have a pair of Halcyon acoustics but both have the same neck carves/profiles, widths and materials and their bodies differ wildly.

So yeah...let's assume that we ALL already know that there are many things that might have a more profound effect on tone like the soundboard or bracing. And let's assume that we didn't actually have to physically swap necks on a guitar to figure-out whether or not the neck of a guitar is an important factor in the quest for tone.

And...WOW...thanks for all the replies and thoughts and positions on this subject. Please keep em coming.

blaren 11-06-2013 11:46 AM

Quote:

Originally Posted by brian a. (Post 3684429)
All I know for certain is that a guitar with no neck doesn't sound so good and a guitar with a neck sounds better. Therefore, I must conclude that the neck has a lot to do with how a guitar sounds. ;)

mmmmm...I think one with no neck might actually sound "better". That great big huge massive soundboard that extends all the way to the toners would be a bugger to try to play though.
Hey does a dulcimer have a neck? Wade?? I know it has a fretboard but....
So yeah...I'd imagine that a neckless guitar while unplayable, would probably sound HUGE!!!

So there you have it. The neck is probably the single biggest tone-sucker on the whole guitar. If you could play a neckless guitar that had a body that ran from endpin to tuners...CANNON??? Nope...NUCLEAR DEVICE!

woodstock64 11-06-2013 12:01 PM

Quote:

Originally Posted by Long Jon (Post 3684381)
Ok. Anybody wanna commission say a Taylor BTO with maybe 4 different necks to swap around and put this theory to some scientific testing ?

Toby Walker ? He loves a/b-ing stuff ! :D

I too remember seeing ads for weights to fix on your headstock to "increase sustain" or whatever... I have also lately noticed the "low mass" improvement claims!
ONE of them MUST be right!! :rolleyes:

The A/B comparison would still be unreliable and useless given that even the same make and model guitar is constructed of different sets of wood. How would one know whether the difference in tone was due to the different style neck or the difference in wood?

muscmp 11-06-2013 12:01 PM

without the neck, what do you have? nothing but a bunch of parts!! it has to go together as one!

play music!

dneal 11-06-2013 12:03 PM

Maybe I'll save somebody some typing...

In THIS THREAD, Alan Carruth said:

Quote:

Originally Posted by Alan Carruth (Post 3559688)
One of the problems with this is that it's so easy, and so false, to draw a parallel with solid body electric guitars: everybody knows how important the neck is on those, so it must be similarly so on acoustics.

In theory, the string works best (produces the purest signal) when both ends are 'fixed' so that they don't move at all. Of course, on an acoustic, you'd get no sound if the bridge and top couldn't move, but at least you'd like the neck to be 'rigid', and massive enough to keep the nut from jumping around too much. For the most part, any neck that's stable enough to be usable will do this. The top moves so much more than the neck or the nut that any effects on the tone of neck movement will be secondary at best. The issue comes in with that little phrase 'for the most part'. What happens is that there are resonant modes of the entire instrument that can alter the tone a bit, at specific frequencies, in some cases, and these are tied in with neck stiffness and mass (particularly the headstock mass).

The most important of these 'whole body' modes on an acoustic is the lowest pitched one, and then only sometimes. Basically, the whole guitar can vibrate like a xylophone bar, with the head and tailblock going one way while the upper bout goes the other. There are two stationary 'nodes' for this mode of vibration; one at about the nut or first fret, and the other across the lower bout near the line of the bridge. If you hold the guitar up at the nut and tap on the back of the head you can usually hear this.

Generally, it's quite low in pitch: often around C below the low E note, so it doesn't make any particular difference. However, if the neck is particularly stiff, and the head is light, this 'neck mode' can be pitched high enough to interact with the 'main air' ('rum jug') resonance, and this will affect the tone. It's most common to get this match on Classical guitars, and uncommon on steel strings, since they tend to have longer necks and often use heavier machines. The frequency match has to be exact for there to be any noticeable difference in the tone, and sometimes things like swapping machines, or even replacing metal buttons with wood ones, will be enough to bring things into line. That's why some folks are convinced that changing machines makes a big difference, and others are not: it all depends on the details of their particular case.

There are several other such 'whole body' resonant modes on acoustics, but they tend to be weaker, quite variable in pitch, and high enough up so that they don't seem to matter too much. This is the opposite of what happens on solid body guitars, where the lower three or four such modes are low enough, and active enough, that they can really alter the sound; usually by stealing energy from the strings. The worst case is solid body basses, where the bridge is perched 'way out at the end of the body, where the motion and energy loss are greatest. That's why they tend to have so many 'dead' notes. On an acoustic there's usually so much else going on that it would be pretty hard to pin any specific dead note or wolf note onto a 'neck' vibration.

The bottom line, then, is that the neck does influence tone, but less than a lot of other things. At any rate, what really counts on an acoustic is not so much any particular detail, but, rather, how it all works together.

If you're wondering how he came to this conclusion, he explains in a later post:

Quote:

Originally Posted by Alan Carruth (Post 3561255)
There's a persistent belief that the neck to body joint influences the sound. It's possible that it does, of course, but the problem is isolating variables well enough really be able to say.

I have made several Classical 'test mules' using the same neck (it saves time), which can be easily swapped out. It's basically held on by string pressure: there are a couple of pins in the end of the fingerboard on the neck that plug into holes in the stub fingerboard on the box to locate it, and a bolt through the neck block and neck keeps the thing from folding up. This is pretty similar to the old Stauffer adjustable neck, and I've seen modern ones that work more or less the same way, but with the guts decently hidden. On mine there's a gap between the end of the heel and the box of about 1/4". I have never been able to detect a difference in the sound of the guitar whether that gap is filled with a wedge and snugged down tight or not. Without the wedge you can just pull the head right back until the strings ground out on the 12th fret, so you'd think there would be a difference in the way it 'transmitted vibration'. This suggests there is either no difference, or no vibration to transmit. BTW, I've seen this same joint used on the neck of a very fine sounding guitar that Manuel Valasquez built for John Bigelow.

And, yes, NY NY: I've been a builder for over forty years, done my share of repair, and published a few papers on guitar acoustics too, so I guess I'm entitled to an opinion. For that matter, there are other folks in this thread who's opinions I respect, even if they're not makers or techs: Wade Hampton Miller being one. :)

Speaking of which: as far as I can see, banjos and solid body guitars have a lot in common. Both have relatively thin necks joined to a massive and rigid body. The banjo, of course, has a has that is light and mobile, instead of a massive and hard bridge and top, which is why you can hear it when its not plugged in. I suspect that banjos fall somewhere between acoustic and electric guitars in terms of the influence of the neck material, but I don't have data to back that up.


mhs 11-06-2013 12:28 PM

Rather than trying to figure out how an inanimate object affects tone, I wonder how much it affects the player who in turn hugely affects the tone.

If you're happiest with a neck that suits your body, arms, fingers, and a million other parameters, then your tone will probably be better. Things that make you more comfortable, relaxed, whatever state it is you require to play well in probably make your tone better as well.

I have a cat that jumps on my head when I'm playing at home. That affects my tone a heck of lot more than anything on the guitar.

Long Jon 11-06-2013 01:08 PM

Quote:

Originally Posted by Long Jon (Post 3684381)
Ok. Anybody wanna commission say a Taylor BTO with maybe 4 different necks to swap around and put this theory to some scientific testing ?

Toby Walker ? He loves a/b-ing stuff ! :D

I too remember seeing ads for weights to fix on your headstock to "increase sustain" or whatever... I have also lately noticed the "low mass" improvement claims!
ONE of them MUST be right!! :rolleyes:

Quote:

Originally Posted by woodstock64 (Post 3684496)
The A/B comparison would still be unreliable and useless given that even the same make and model guitar is constructed of different sets of wood. How would one know whether the difference in tone was due to the different style neck or the difference in wood?

Well I was only being silly anyway,,,, but I DID say dif necks on SAME box... :D

woodstock64 11-06-2013 01:39 PM

How much does the neck affect tone?
 
Long Jon, my apologies. I don't how I missed the "same box" part of your post.

Long Jon 11-06-2013 01:46 PM

Quote:

Originally Posted by woodstock64 (Post 3684615)
Long Jon, my apologies. I don't how I missed the "same box" part of your post.

Ha ha.. don't mentch... I really was only being silly anyway.

Apologies to the OP, who may be looking for serious answers!

Alan Carruth 11-06-2013 01:50 PM

Roger Knox wrote:
"The neck has very little effect on tone in an acoustic guitar, the neck resonant frequencies don't couple with the soundboard very effectivly, so there isn't much contribution."

Thanks dneal for resurrecting those posts and saving me a lot of typing. I'll just add here that you can't think about the neck independently of the rest of the guitar. Its not something like a diving board that's relatively whippy and light and is solidly anchored in concrete. It flexes more than the box, but the box flexes too. That's why your guitar can need a neck reset even when the truss rod has kept the neck straight. That static flexing is mirrored by dynamic flexing and resonances at different pitches that can sometimes alter the tone. Changing the neck changes the vibrations of the system, but so would changing the box.

Wolfram 11-06-2013 01:53 PM

Of course the neck affects tone.

Strum the open strings, then touch the headstock. You will feel it vibrating - that's the neck. It's also how clip-on tuners manage to get a signal.

If something vibrates when you play the guitar, it is absorbing or reflecting energy and will affect the sound.

How it vibrates depends on what it is made of and how it is made. It's construction will also affect the presence (or absence) of dead or wolf-notes.

dangrunloh 11-06-2013 05:19 PM

I'm convinced a very hard wood neck like Maple sounds different than a typical mahogany neck. I don't care for it. Bolt on or set in construction and other factors may affect sustain but I believe hardness density and weight of the wood neck can affect tone. I'd bet a solid metal neck wouldn't sound the same either.

Wade Hampton 11-07-2013 12:36 AM

My experience has been that the wood of the neck most definitely has an impact on the sound of an acoustic guitar. It's not as dramatic or as obvious as the effect the necks have on electric guitars or banjos (which, on banjos, have an IMMENSE impact on the sound,) but there's a difference when the neck of a guitar is made of mahogany compared to when it's maple.


whm

Toby Walker 11-07-2013 03:07 AM

Quote:

Originally Posted by Wade Hampton (Post 3685322)
My experience has been that the wood of the neck most definitely has an impact on the sound of an acoustic guitar. It's not as dramatic or as obvious as the effect the necks have on electric guitars or banjos (which, on banjos, have an IMMENSE impact on the sound,) but there's a difference when the neck of a guitar is made of mahogany compared to when it's maple.

whm

I've had the same experience with a National Tri-cone, albeit by accident - literally. Someone had dropped the guitar the result of which was a broken mahogany neck. It was replaced by a maple neck and the difference in tone was pronounced.


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