Ovation Adamas 1687 GT-8

I spent a few weeks playing the Ovation Adamas 1687 GT-8 through rehearsals and a small club gig to see how this high‑end Adamas fares as a working instrument - and it left a strong impression. From the first chord I noticed the carbon‑fiber top’s laser‑sharp clarity and the no‑nonsense output from the onboard OP Pro Studio preamp, which made live front‑of‑house work much easier.

First Impressions

The Adamas GT-8 arrives with a look that announces itself - carved epaulets, a sculpted headstock blossom, and a reverse burst finish that’s modern and elegant. My initial play showed a very responsive, bright top that rings with a focused clarity you don’t usually get from an all‑wood flat‑top, and the bowl back felt rigid and secure when standing with a strap. I did notice the instrument’s presence onstage right away - it cuts through in a dense band mix without needing heavy EQ. The overall fit and finish gave me confidence that this is a hand‑built, premium instrument intended for working players.

Build Quality & Design

Ovation’s Adamas line is built around an ultra‑thin unidirectional carbon‑graphite suspended top and Quintad bracing, and the GT-8 I tested reflected that engineering in both appearance and performance. The deep Lyrachord composite bowl is robust and immune to the humidity swings that will make wooden backs complain, and the carved walnut bridge and epaulets add a refined, bespoke feel. Hardware is top spec - Schaller tuners, a sculpted walnut bridge, and an OP Pro Studio preamp with 1/4" and XLR outputs, which keeps the guitar fully pro in the signal chain. The finish and binding were immaculate on my sample - there were no blemishes and the neck join felt solid and well executed.

Playability & Comfort

Playability for me was excellent when standing and using a strap - the neck has a comfortable soft‑V feel and the 25.25" scale breathes nicely for both fingerstyle and fuller strummed voicings. Seated playing requires adjustment; the deep bowl can feel different from a flat back and wants to roll if you don't brace it against your leg or use a strap, so I found a small non‑slip pad helpful for long sitting sessions. The 22 frets and walnut fingerboard allowed precise fretting and the action out of the case was usable, though a fine setup will tailor it to your prefered string gauges. For an 8‑string Adamas the string spacing still felt balanced and I had no trouble with hybrid picking techniques.

Sound - Unplugged

Unplugged, the GT-8 is articulate and immediate - highs are crystalline and harmonics bloom cleanly, while the lows remain controlled rather than woolly. The carbon top gives a bell‑like shimmer that works wonderfully for detailed fingerpicking and arpeggiated patterns, and the fundamental is present enough to support rhythm work, although players who chase a woody, rounded acoustic warmth may find it less "traditional." The Adamas voice lives in clarity and projection rather than the soft, dark bloom of a tonewood dreadnought, which I liked for cutting through complex arrangements.

Sound - Plugged In

Plugged in is where this guitar really shines for road use - the OP Pro Studio preamp gives me a clean, detailed DI that needed only minor EQ at the desk, and the XLR output made direct recording painless. The transient response is fast and the string attack translates with impressive fidelity, so the guitar retains its character through a PA or into an interface. I found that gentle onboard compression and the exciter options help tailor the live sheen without introducing obvious artifacts, which is a huge convenience when moving between venues. For studio DI work, that solid, noise‑free signal sped up tracking and avoided the usual time spent coaxing tone from a weak pickup system.

Real‑World Experience

I used the GT-8 across rehearsals and a short set in a quartet lineup; through the PA it landed exactly where I wanted - present but not harsh - and it remained reliable under stage lights and variable amp setups. The bowl’s resistance to environmental changes gave me confidence when storing it overnight between gigs, and the solid OEM case kept it secure while traveling. I did find that if I switched to heavier gauges or alternate tunings I needed a small setup tweak to retain ideal action and intonation, but nothing out of the ordinary for a professional instrument. In short, it behaved like a pro workhorse more than a fragile boutique piece.

The Trade‑Offs

There are compromises here - the price is high and the Adamas aesthetic and bowl back are polarizing, so it’s not for everyone’s taste or budget. Seated players who rely on the instrument to sit neatly in their lap may initially struggle with ergonomics unless they adopt a strap or a lap pad, and players seeking that classic woody warmth might prefer a solid‑wood jumbo or dreadnought instead. Also, the proprietary nature of the bridge/electronics and the specialized carbon top mean major mods or repairs are neither simple nor inexpensive compared with a traditional wooden guitar. Still, for gigging players who need a durable, climate‑stable instrument with incisive amplified character, those trade‑offs can make a lot of sense.

Final Verdict

The Ovation Adamas 1687 GT-8 is a serious, professional instrument that rewards players who need stage reliability, articulate unplugged tone, and a powerful, immediate DI for live or studio work. I recommend it to gigging acoustic players who want a unique voice and minimal weather‑related hassle, but I’d advise anyone attached to the classic warm‑wood acoustic sound or who plays primarily seated without a strap to try one extensively before buying. For what it aims to do - deliver clear, projection‑driven tone with road‑hardiness and pro electronics - it succeeds admirably.