🔽Now is the time to deeply explore the 'Ideal Acoustic' Ovation has pursued!
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Ovation / 1997 Super Adamas 1687-5
Acoustic guitars are made of wood.
The Adamas, created by aerospace engineer Charlie Kaman in the 1970s, directly challenged this conventional wisdom.
This model, introduced in 1976, can be called a revolution in the acoustic guitar world.
The material chosen for the top was neither wood nor resin, but carbon fiber—then scarcely used in musical instruments.
Combining rigidity and thinness, the top became extremely light, thin, and resilient.
This benefited resonance most, a direct result of pursuing optimal sound.
This Ovation Adamas 1687-5 (1997) embodies Ovation's technology in its purest form: a non-cutaway × deep bowl design.

The Lyracord bowl back radiates sound like an amphitheater.
A unique layout created by countless sound holes.
And the cosmic beauty emanating from the scattered glitter on the black finish.
It possesses not only performance as an instrument but also a presence befitting a top-tier model.
The first note reveals Adamas' signature punch—a thick, powerful mid-low range and clear, penetrating highs that cut through space without losing definition.
A sharpened core strength, distinct from the gentle roundness gained through wood aging.
This sound isn't achieved through years of playing; it's born from the design itself.
And the Optima preamp featured in this 1997 model offers a wide EQ range, resolution that captures the finest nuances, and effortless sound shaping that works flawlessly in both live venues and studios.
It gives you the feeling that instead of searching for your desired sound, you can simply reach out and grasp your own sound.
Having handled many vintage instruments, I feel Adamas exists in a world slightly different from the notion that "older is better."
It's not the aging of the wood, but the very completeness of the design philosophy that determines the strength of the sound.
Playability, durability, and the core strength of its sound—all are stable at the highest level, making this truly a piece worthy of the name "Super Adamas."
The glittering flakes on the black finish emit a deep, nebula-like glow when illuminated.
The thrill you feel the moment you open the case is unlike any other acoustic guitar.
Please take this instrument, crafted to change the future of acoustic guitars, into your hands.
[Specs/Included Case]
TYPE: Deep Bowl
TOP: Carbon Graphite
BACK/SIDES: Lyrachord
NECK: Walnut
FINGERBOARD: Walnut
BRIDGE: Walnut
ELECTRONICS: Optima
SCALE: 641mm
NUT-WIDTH: 42.0mm
CASE: Original Hard Shell Case
[Condition]
-Considering its age, it's in nice cosmetic condition.
-There are scratches on the back panel and surrounding area.
-No issues affecting playability, such as buzzing or muffled notes.
-String height at 12th fret: 2.2mm (6th string side), 1.3mm (1st string side)
-Saddle clearance: Approx. 2.5mm to 3.5mm
-Electronics function properly and can be used without issues.
[Peace of Mind Warranty: 6 months]
[Mail-Order Assurance Service]
For mail-order purchases, since we cannot provide customers with an opportunity to try the instrument, we offer a 6-day trial period after the product arrives.
Please try the product thoroughly at home. If you are not satisfied, we will refund the purchase price.
*The customer is responsible for the round-trip shipping costs.