Museum

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