12-string GA

12-string Grand Auditorium Guitar Front Photo

The Grand Auditorium Model (GA) is a mid-large-size guitar, with great basses, volume, and projection. Excellent for finger-style, strumming, and flatpicking.

It has a full bass sound with articulate mid-range and sparkling top-end so you can really get a lot out of the guitar, no matter your style.

The Auditorium is also comfortable to play because it’s not too big either. It would be the ideal choice for anyone after a multi-purpose acoustic guitar.

First in the World luthier acoustic guitar with the following innovations:

  • Acoustic Tubes inside the guitar neck (Patent – European Patent Office no. EP 3340231 ‘Acoustic Tubes’)
  • Top with an 8th-generation WAVE resonator
  • Back & sides made in 2nd-generation High-Tech Press
  • Bridge with drilled holes
  • ‘Sigmoidal Joint’ of the guitar sides
  • Special chemical-ceramic coating of the back & sides inside
  • Special chemical coating of the top inside

Sample specifications

Body: Grand Auditorium, 12-strings, 12-frets to the body
Double-Top: Alpine Spruce from Tirol (Master Grade)
Back&Sides: Black & White Ebony with sapwood (Master Grade)
Neck: C-shape, made of flamed Sycamore (Master Grade), dual-action double truss rod
Fingerboard: Elevated, Ebony (Master Grade), binded, compound radius 16″ (at the nut)
Head: Type: Modern (Open); Plates: Ebony (Master Grade); Logo: Black mother of pearl
Bridge: Ebony with drilled holes (Master Grade), hand-shaped shaped, encrusted with natural bone and special inlay in black mother of pearl
Soundhole: Single left upper-bout, binded
Heel: Cup: Ebony (Master Grade); Logo: Black mother of pearl
Arm bevel: Smooth, Ebony, integrated with the guitar body, 20 mm width
Nut: Hand-shaped and polished bone, 46 mm (1 13/16″) width
Saddle: Hand-shaped and polished bone, semi-scalloped
Tuners: Gold plated single tuning keys, with mother of pearl screw reinforcements. Ratio 1:18
Binding: Ebony (Master Grade)
Fingerboard: side dots Natural bone ø 1.5 mm at 3, 5, 9, 15, 17 frets, and ø 3 mm at 7, 12 (double) frets
Frets: EVO-GOLD (nickel-free)
Strap buttons: Ebony with logo inlays in black mother of pearl
Scale length: 25.5” (647,7 mm)
Finish: Varnish, highly resonant, anti-static (own recipe), hand-polished, high-gloss
Pickguard: Black & White Ebony (Master Grade)
Inlay: Single crown logo made of black mother of pearl at 12th fret

Warranty: Life-time
Hardcase: Highest-quality, brand hardcase


All my steel-string instruments are equipped with the newest generations of the following innovations: