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Instrument scale length - what difference does it make?

Posted: 24 Nov 2010 7:22 am
by Paul Seager
I am essentially a beginner but thinking of buying a more professinal instrument and have noticed that scale lengths vary from 22 to 26 inches. I think I probably know the answers to this but I'm aware that many of you have good collections and may be aware of how a longer scale length affects one's playing.

I used to be a bassist so I know that a longer scale generally means stronger lows in the tone, better sustain, etc. I can't imagine that its any different for a steel. But how does it affect slants - my logic says that it makes some slants more difficult but is it that much of a difference or is just a case of adapting?

Posted: 24 Nov 2010 12:13 pm
by Peter Lindelauf
Think you answered the question about sustain. Here's a page from John Ely's site with regard to ease/difficulty of playing slants and the 'doability' of playing slants on various steels. As a new player, definitely find it easier to play slants on my made in Quebec walnut lap steel which has a longer (by 1.5 inches or so) scale and wider string-spacing than my Fender Champ, for example. Just checked with a measuring tape and the Quebec guitar has +/- 7/16 spacing versus 3/8 on the Champ. Surprising what a difference a 1/16 makes.

http://www.hawaiiansteel.com/instrument ... angles.php

Posted: 24 Nov 2010 9:41 pm
by Tom Karsiotis
I have found that Peter is correct about string spacing. The 7/16" string spacing makes a big difference in keeping 3 string slants in tune. I have an old Multi-Kord with 7/16" spacing and a 23" scale length. It is the most accurate of my steel guitars for slants. The scale length makes little difference as you can see in the attachment. I made the measurements when the drawing was at 50% so you should double them, however the error at the middle string is very close in both cases. The longer scale will give you more sustain. The only thing that saves my Multi-Kord is that is a huge plank of old Honduras Mahogany and that helps with the sustain.
Image

Posted: 25 Nov 2010 1:50 pm
by Paul Seager
Thank you both.

Your comments have been very helpful. Well, has my desire of owning a Fender Stringmaster diminished because of the longer slants? Heck no!

Posted: 28 Nov 2010 9:10 pm
by Bill Brummett
The other aspect of the longer scale lengths is that the harmonics are much easier and ring better. I have a 26" Stringmaster and the tone is mind boggling.. but yes the slants, especially in the lower frets, are more difficult.

Posted: 29 Nov 2010 7:00 pm
by Steve Ahola
I just checked and my 1948 Gibson Century 6 has a string spacing of 0.48 (which would be like 31/64th- almost a half an inch!) The scale is 22 1/2" which IMO works well with that steel. My Chandler RH-2 has a 23 1/2" scale and a string spacing of slightly under 7/16" and that works great, too. If I am holding the steel in my lap I wouldn't want the scale much more than that- my arms are only so long. :eek: That would not be a problem for me with a console steel like a Stringmaster since I wouldn't be balancing the darn thing in my lap.

As for sustain, I think that the quality of the wood would be just as important as scale length. I agree that the lower notes would sustain better with a long scale but I think that the higher notes would ring out more with a shorter scale. String tension would also have a big effect but don't let it get too high or you can damage the steel, especially the tuning keys.

Steve Ahola

sweet spot

Posted: 6 Dec 2010 4:56 pm
by Ted Smith
Longer scale = wider sweet spot for the guitar to sound in tune.
You'll notice it the most playing with a band - short scale is far more unforgiving mho

Posted: 7 Dec 2010 11:44 am
by John Groover McDuffie
Most dobros are 25" scale I think. FWIW

Re: sweet spot

Posted: 7 Dec 2010 11:49 am
by Twayn Williams
Ted Smith wrote:Longer scale = wider sweet spot for the guitar to sound in tune.
You'll notice it the most playing with a band - short scale is far more unforgiving mho
quoted for truth

Posted: 7 Dec 2010 9:03 pm
by basilh
I find that even alternating betwixt different scale length guitars during a gig isn't a problem.

22.5" up to 26" on my guitars and all-sorts in-between.

22.5" Gibson lap steels, 23" Fender 400-1000-800-2000 AND PS-210, 25.5" Tricone and Spider-bridge resos and 26" Stringmaster..
I must admit that the 26" Stringmaster has the best sustain by a million miles. Although my 24.375" Emmons PP gives the Stringmaster a run for it's money..

Blender?

Posted: 8 Dec 2010 5:11 am
by Tom Wolverton
I've never seen a 26" Stringmaster with a PU blender pot. Did Fender ever make them this way?

Posted: 8 Dec 2010 7:32 am
by Alan Brookes
It's easy to prove mathematically that the longer the string, the longer the sustain. I've built console steels with as much as a 30" scale, and the improvement in sustain is profound. If you find slants more difficult to play with a longer scale then just play higher up the fingerboard. Remember, that you can always shorten strings with your tone bar, but you can't lengthen them.