OM models are virtually the same as auditorium guitars, with the main difference being the sclae length. Auditoriums have 24.9" scales, while the Orchestras have full 25.4" scales. Body length, depth and width of both models is the same. OM-21 Special is one of the most prominent orchestra models in Martin`s Standard series, as it comes with body made of carefully selected solid pieces of wood. Rosewood is used for the back and side panels, while the spruce is used for the sound board and bracing underneath it. Solid wood construction continues on with ebony bridge and fingerboard and hardwood neck. Low profile neck is finished in satin and topped with 20-fret fingerboard on the top. On the headstock, Martin installs a set of six nickel-plated tuning machines.

OM-21 Special Full Specs

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Body Shape Concert
Body Type Hollowbody
Body Construction Acoustic
Body Top Wood Spruce
Body Wood Rosewood
Bridge Ebony
Neck Wood Hardwood
Neck Shape Low Profile
Neck Joint Dovetail
Fingerboard Material Ebony
Number of Frets 20
Fingerboard Inlays Dot
Hardware Nickel
Number of Strings 6
Pickguard Yes
Binding Indian Rosewood
String Nut Bone
Scale Length 25-1/2"
Nut Width 1.75"
Finish Gloss
Finish Satin
Fingerboard Radius 16.00"
Custom Features:

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2.
Body Shape
Concert
Concert
Body Type
Hollowbody
Hollowbody
Body Construction
Acoustic
Acoustic
Body Top Wood
Spruce
Spruce
Body Wood
Rosewood
Rosewood
Bridge
Ebony
Ebony
Neck Wood
Hardwood
Hardwood
Neck Shape
Low Profile
Low Profile
Neck Joint
Dovetail
Dovetail
Fingerboard Material
Ebony
Ebony
Number of Frets
20
20
Fingerboard Inlays
Dot
Snowflake
Hardware
Nickel
Gold
Number of Strings
6
6
Pickguard
Yes
No
Binding
Indian Rosewood
Ivoroid
String Nut
Bone
Bone
Scale Length
25-1/2"
25-1/2"
Nut Width
1.75"
1.75"
Finish
Gloss/Satin
Gloss
Fingerboard Radius
16.00"
16.00"
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Martin OM-21 Special 3.94 out of 5 based on 1 ratings

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