Steel / No. 791
Modern Steel — 40 Anniversary
One of two exceptional Modern guitars created for the 40th anniversary of our family lutherie workshop. Six steel strings, Ancient Cypress over old-growth Redwood, Golden Madrone, natural Baltic amber and ArcFret.
SeriesModern
The story
Two instruments. Forty years of family guitar making.
In 2026, our family lutherie workshop celebrates forty years of guitar making, from 1986 to 2026. Two exceptional Modern guitars were created for this occasion: Steel No. 791 and Nylon No. 792. Each has its own materials, construction and musical identity.
Modern Steel No. 791 combines an Ancient Cypress outer soundboard with a hidden old-growth Redwood inner layer. Golden Madrone gives the back and sides their flowing figure, while modified Magnolia and Flamed African Ebony form the neck and fingerboard.
Natural Baltic amber continues across the rosette, fingerboard artwork and HeadLight headstock. The translucent Amber BackLight Rosette gives the back its own focal point. Mammoth details, ArcFret and ebony comfort bevels complete this individual anniversary instrument.
Construction developed in our workshop
- S-WAVE Resonator — A lightweight body construction with a double-top soundboard and no traditional internal connecting linings.
- X-ARS — Back-and-sides construction with a chemical-ceramic matrix, combining high stiffness with low damping.
- Acoustic Tubes — Air channels in the reinforced neck contribute to the instrument's resonance and tonal character.
- Sigmoidal Joint — An S-shaped joint between the sides spreads loads over a larger surface and reduces the mass of the reinforcement.
- Hollowed Bridge — A hollowed bridge with reduced mass and pinless string attachment.
- ArcFret — Turkowiak's proprietary system of curved frets compensates intonation across the fingerboard.
- Compression Bracing — Arched wooden braces with carbon-fibre ties maintain the back's curvature and increase its stiffness.
Specifications
- Guitar no.
- 791
- Model
- Modern — Steel
- Collection
- 40 Anniversary 1986–2026
- Anniversary
- 1986–2026 — forty years of our family lutherie workshop
- Instrument
- Six-string steel-string acoustic guitar
- Body shape
- Turkowiak 40th-Anniversary
- Double top
- Ancient Cypress outer layer / hidden old-growth Redwood inner layer
- Back and sides
- Golden Madrone
- Neck
- Modified Magnolia
- Fingerboard
- Flamed African Ebony
- Frets
- ArcFret
- Neck truss rod
- Double dual-action
- Signature Amber Package
- Natural Baltic amber top rosette, Amber BackLight rear rosette and Amber HeadLight headstock plates
- Signature Mammoth Package
- Mammoth nut, mammoth elements in the top rosette and headstock logo
- Tuners
- Turkowiak x Hidden tuning machines — 1:18 ratio, amber covers and housings, natural Baltic amber buttons
- Comfort
- Ebony Arm Bevel and Rib Bevel
- Amplification
- Carlos VIP DM
- Construction
- S-WAVE Resonator, X-ARS, Acoustic Tubes, Sigmoidal Joint, Hollowed Bridge, Compression Bracing