Yamaha GC (Grand Concert) Fan Club -Delcamp

Construction and repair of Classical Guitar and related instruments
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HNLim
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Location: Singapore - The City in a Garden

Re: Yamaha GC (Grand Concert) Fan Club -Delcamp

Post by HNLim » Sun Sep 10, 2017 2:32 pm

From my knowledge, the GC70 & GC71 is Yamaha's best model. It is still available in Japan and it costs 60% more than the GC82.

630mm
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Re: Yamaha GC (Grand Concert) Fan Club -Delcamp

Post by 630mm » Sun Sep 10, 2017 6:11 pm

Thanks for your impressions and the side by side pics. What year is that GC3a? I thought they moved to ebonized rosewood instead of ebony starting quite early with the GC3 models. My late 70s and early 80s GC5 models are all rosewood fingerboards. The back grain on that GC3A is very nice btw. I have never tried the higher model Gs but I have heard good things. My 77 GC5M Ezo Spruce Harada guitar is very stiff and heavy and has a higher body resonance around A. Are your G255s and G260s models similar? Are they Ezo spruce too?

I have a late 80s model CG180SA and it definitely is quieter and less rich than any of my GCs. Same with my CG171C. The purfling and rosette on the 180SA are also quite dull.
2017 Benito Huipe "Bouchet" Spruce 655mm
2015 Francisco Navarro Concert Cedar 630mm
1977 Yamaha GC-5S Cedar 658mm
1972 Yamaha GC-6D Ezo Spruce 662mm

Yvon
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Re: Yamaha GC (Grand Concert) Fan Club -Delcamp

Post by Yvon » Sun Sep 10, 2017 7:29 pm

Hi all,
First message here (after my introduction)

I own a Yamaha GC31 that I like,
it's not easy to try try classical guitar in this price range here so I bought it used from a music strore on the web without trying it.

It's much better then my Lapatrie.
I paid 1000$ canadaian for it (about 750USD)

The guitar is in new condition, I mean NEW.

My qestion is,

I really like the yamaha, should I save my money and by a GC42 or et even an 82 (my dream guitar so far)

Or maybe I could upgrade the one I have right now, I was thinking about removing the finish on the top and put a french polish.

SInce the guitar is in very good condition, maybe it would help the sound.

Anybody ever done that?

630mm
Posts: 59
Joined: Sun Jun 04, 2017 9:32 pm

Re: Yamaha GC (Grand Concert) Fan Club -Delcamp

Post by 630mm » Sun Sep 10, 2017 8:24 pm

This has been done with what looked like excellent results viewtopic.php?t=29501. I doubt that a newer GC would benefit as much as a model with an early poly finish.
2017 Benito Huipe "Bouchet" Spruce 655mm
2015 Francisco Navarro Concert Cedar 630mm
1977 Yamaha GC-5S Cedar 658mm
1972 Yamaha GC-6D Ezo Spruce 662mm

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andreas777
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Location: Germany

Re: Yamaha GC (Grand Concert) Fan Club -Delcamp

Post by andreas777 » Sun Sep 10, 2017 8:58 pm

630mm wrote:
Sun Sep 10, 2017 6:11 pm
Thanks for your impressions and the side by side pics. What year is that GC3a? I thought they moved to ebonized rosewood instead of ebony starting quite early with the GC3 models. My late 70s and early 80s GC5 models are all rosewood fingerboards. The back grain on that GC3A is very nice btw. I have never tried the higher model Gs but I have heard good things. My 77 GC5M Ezo Spruce Harada guitar is very stiff and heavy and has a higher body resonance around A. Are your G255s and G260s models similar? Are they Ezo spruce too?

I have a late 80s model CG180SA and it definitely is quieter and less rich than any of my GCs. Same with my CG171C. The purfling and rosette on the 180SA are also quite dull.
The GC3A is from 1982. I'm pretty sure that the fretboard is ebony, and the Yamaha guitar archive confirms this. But I'm not 100% sure if my G255s/G260s have ebony fretboards too. The guitar archive says ebony, and it's completely black, but there are too many pores on its surface so it might be ebonized rosewood. Regarding Ezo spruce, the guitar archive says 'solid spruce' only, and I guess it's not Ezo. It's hard to say due to the colored finish. The weight of my GC3A is 1720g, only slightly lighter than my G255s. (I guess the G260s is the same.)
21 classical guitars, soon 22 :-D, 1 digital piano - no TV, no radio

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andreas777
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Location: Germany

Re: Yamaha GC (Grand Concert) Fan Club -Delcamp

Post by andreas777 » Sun Sep 10, 2017 9:06 pm

Yvon wrote:
Sun Sep 10, 2017 7:29 pm
Hi all,
First message here (after my introduction)

I own a Yamaha GC31 that I like,
it's not easy to try try classical guitar in this price range here so I bought it used from a music strore on the web without trying it.

It's much better then my Lapatrie.
I paid 1000$ canadaian for it (about 750USD)

The guitar is in new condition, I mean NEW.

My qestion is,

I really like the yamaha, should I save my money and by a GC42 or et even an 82 (my dream guitar so far)

Or maybe I could upgrade the one I have right now, I was thinking about removing the finish on the top and put a french polish.

SInce the guitar is in very good condition, maybe it would help the sound.

Anybody ever done that?
Welcome to the forum Yvon.
If your GC31 is in (almost) mint condition then it makes no sense to me to replace the finish. The improvements are very limited and the costs quite high (if you don't do it on your own). If you are not fully satisfied with this guitar then I would sell it and buy another one.
If the GC82 is your dream, and there is a realistic chance that you can fulfill your dream, then I would go in this direction, otherwise you buy the GC42, are not satisfied again, and you still dream your dream...
21 classical guitars, soon 22 :-D, 1 digital piano - no TV, no radio

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andreas777
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Location: Germany

Re: Yamaha GC (Grand Concert) Fan Club -Delcamp

Post by andreas777 » Mon Sep 11, 2017 6:22 am

630mm wrote:
Sun Sep 10, 2017 6:11 pm
My 77 GC5M Ezo Spruce Harada guitar is very stiff and heavy and has a higher body resonance around A. Are your G255s and G260s models similar?
I measured the body resonances this morning, and my GC3A is also around A, and the G255s/260s around G/G#. I was not aware of that and it could be a reason why I prefer the sound of the G255s/G260s.
21 classical guitars, soon 22 :-D, 1 digital piano - no TV, no radio

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HNLim
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Location: Singapore - The City in a Garden

Re: Yamaha GC (Grand Concert) Fan Club -Delcamp

Post by HNLim » Mon Sep 11, 2017 6:32 am

I was playing my 1978 Yamaha GC30A this morning and I can still smell that very sweet fragrance coming out from the sound hole. The smell is much more intense when this guitar is kept in the case for several days.

630mm
Posts: 59
Joined: Sun Jun 04, 2017 9:32 pm

Re: Yamaha GC (Grand Concert) Fan Club -Delcamp

Post by 630mm » Mon Sep 11, 2017 11:33 pm

andreas777 wrote:
Mon Sep 11, 2017 6:22 am
630mm wrote:
Sun Sep 10, 2017 6:11 pm
My 77 GC5M Ezo Spruce Harada guitar is very stiff and heavy and has a higher body resonance around A. Are your G255s and G260s models similar?
I measured the body resonances this morning, and my GC3A is also around A, and the G255s/260s around G/G#. I was not aware of that and it could be a reason why I prefer the sound of the G255s/G260s.
Yes, my preference leans more toward the sound of the deeper body resonance guitars as well. I've noticed the A resonance can also cause issues with the open A if the wrong strings are selected. However, I do find the trebles, sustain and particularly the harmonics do seem to appreciate the extra stiffness. You've piqued my interest in the older, longer scale Gs. Which of yours has the lowest end?

My 6D has the lowest resonance of my GCs and is also one of my favorites. It is between G and G#.
2017 Benito Huipe "Bouchet" Spruce 655mm
2015 Francisco Navarro Concert Cedar 630mm
1977 Yamaha GC-5S Cedar 658mm
1972 Yamaha GC-6D Ezo Spruce 662mm

lawcch
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Joined: Tue Aug 01, 2017 9:38 am

Re: Yamaha GC (Grand Concert) Fan Club -Delcamp

Post by lawcch » Sat Sep 16, 2017 2:31 am

I found that a NEW Yamaha GC 70 (Made in 2016) had sold for JPY 1,728,000 or USD$15,600 (at www.j-guitar.com) with the following specification;
Table plate: Solid German Spruce veneer
back-plate: Solid Jacaranda veneer
rod: Honduras Mahogany
Fingerboard: Ebony
Under the bridge: Jacaranda
chord length: 650 mm
fingerboard width (Kamikoma unit / body junction) 52.5 mm / 62 mm
winding: GOTOH 35G510QC -M
paint: Full shellac painted
I attached some photos of this GC70 model here
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lawcch
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Re: Yamaha GC (Grand Concert) Fan Club -Delcamp

Post by lawcch » Sat Sep 16, 2017 2:40 am

Another NEW model of Top guitar is Yamaha GC 71 made in 2015 selling price at USD $14,050 or JPY 1,555,200 with the following specification:
Table plate: Solid German pine (Spruce) veneer
back-plate: Jacaranda veneer rod:
Honduras mahogany
Fingerboard: Ebony Under the bridge: Jacaranda
chord/ scale length: 650 mm fingerboard width (Kamikoma unit / body junction) 52.5 mm / 62 mm
Tuning machine : GOTOH 35G510QC -M
paint: Full shellac painted
Comes with hard case with suggested retail price ¥ 1,600,000 (excluding tax)
S. Hernandez and Hauser I's sound are sublimed by Yamaha's designing and manufacturing technique and it is a unique approach model. It realizes a heavy bass and a thickly extended treble, and Andrés Segovia is also acclaimed. It is excellent in far reach and makes your performance stand out even at the concert hall.
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lawcch
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Re: Yamaha GC (Grand Concert) Fan Club -Delcamp

Post by lawcch » Sat Sep 16, 2017 2:54 am

A NEW Yamaha GC70 C costs about JPY 1,555,200 (after discount) or USD$ 14,050 with the following specification:
Sheet board: Sugi veneer
back side · Side plate: Hakaranda single plate Neck : Honduras · mahogany
fingerboard: ebony Bridge : hakaranda
Scale length: 650 mm fingerboard width (upper piece part / body joint part) 52.5 mm / 62 mm
Bobbin Tuning Machine: 35 G 510 QC -M
Paint: Full shellac painted
Come with hard case included Suggested retail price ¥ 1,600,000 (excluding tax) This is a rice cedar model of GC-70, using carefully selected rice cedar veneers as the top board. It features sweet, bright and warm tones as a vertex model of Yamaha original sound rice cedar . It was added to one of Segovia's ten collections. Excellent response and rich volume make dynamic representation possible. Yamaha GC 70C is a custom-made guitar. It is a guitar made of the high quality material selected by the Ginza store staff at the workshop. Easy to play, soft overall balanced tone.
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