Browse the 2017 Model Year
J-45 Progressive
A handmade guitar for the contemporary progressive acoustic player.
$2,999
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Combining our rich history of hand built acoustics with modern innovations the J-45 Progressive features acoustic improvements to complement progressive styles. Including Gibson G FORCE™ tuners for quick access to standard and alternate tunings. Eliminating the need for multiple guitars in different tunings. Titanium Tune-o-matic saddle for fast playing string action and easy to adjust string height for progressive guitar techniques. Increased note to note sustain and improved acoustic intonation for the advanced progressive performer. Excellent acoustic sound reproduction provided by an award winning LR Baggs™ Lyric pickup system, featuring a mic pickup for amplified modern percussive playing.
Body
Top
Wood Species: Sitka Spruce
Pieces: 2
Grade: AA
Binding: 4 ply top
 
Back
Wood Species: Mahogany
Pieces: 2
Density:
Binding: 1 ply
Weight
Weight Relief:
Average Weight (body only): 1.025 kg /2.26 lbs
 
Materials Used
Glue: Franklin Titebond 50
Etc.:
 
Tonal, Resonant, and/or Technical Effect: Radiused top with scalloped bracing for projection and resonance
 
Body Contour
Carve: Radiused
Neck
Neck
Wood Species: Mahogany
Pieces: 1
 
Details
Truss Rod: Single Action
Profile: Slim Taper
Thickness at Fret 1: 1.998cm / .787"
Thickness at Fret 12:
Other Materials: Franklin Titebond 50, hot hide glue neck joint
Average Weight: 426.83 gr / 15.o56 oz
 
Peg Head
Type: CF-100
Inlay: MOP
Peg Head Binding:
Silkscreen:
Headstock Angle: 17 degrees
Tonal, Resonant, and/or Technical Effect: Compound Dovetail neck joint for resonance distribution throughout guitar
Neck Fit
Joint Angle: 3 degrees
Joint Angle Tolerance:
Type: Compound Dovetail
Adhesive: Hot hide glue
Gauges Used: Short Scale Pitch Guage
 
Nut
Style:
Material: Black Tusq
Width: 4.38 cm / 1.725"
Slots: E: .053 String Guage
A: .043
D: .032
G: .024
B: .016

e: .012
 
Fingerboard
Wood Species: Richlite
Pieces: 1
Shade:
Fingerboard Details
Radius: 30.48 cm / 12 "
Frets: 20
Nut/End of Board: 4.38cm / 1.725" @ nut, 5.70cm / 2.245" @ end of board
Scale: 62.865cm / 24.75"
Binding:
Side Dots (Color): White
 
Fingerboard Inlays
Style: Parallelograms
Material: Mother of Pearl
Dimensions:
Average Weight: 111.13gr / 3.92oz
Finishes
AUTUMN BURST
Color Code: AB
Surface Texture: Smooth/ Hi Gloss 90 Sheen Lacquer
Filler:
Sealer: 1-1.5 mils
Top: H.B. - TV-L41R0016L1, SNBRST YELLOW ANY0033, Unitone L41N0049
Top Coat: Hi Gloss Lacquer/ 90 Sheen 7-8 mils
Scraped: Fingerboard Sides and Nut
Electronics
Pickups Rhythm Lead
Style: L.R. Baggs Lyric
Winds/Coil: Screw side/Slug side:
Material of Wire (gauge):
Coil Dimensions (per coil):
Coil Material:
Coil Winding Process:
Pole Piece Material:
Pole Piece Position from Nut:
Slug Material:
Slug Dimensions (diameter x length):
Magnet Material:
Magnet Position from Nut:
Magnet Dimensions:
Polarities:
Cover:
Qfactor:
ResistanceDC:
Resonant Frequency:
Tonal & Resonant Advancements:
Hardware
Tuning Keys
Style: G-Force
Material:
Weight: 283.49gr / 10.0oz
 
Tuning Keys Details
Tuning Ratio:
Gear Type:
What is allowable turn:
Plating specs: Nickel
Part numbers: 140-130-747
 
String Dimensions
E: 0.053
A: 0.042
D: 0.032
G: 0.024
B: 0.016
e: 0.012
 
Bridge
Style: Belly up Tune-o-matic
Material: Richlite with adjustable bridge w/titanium saddles
Plating Specs:
Part number: 140-120-922, 140-130-867
Weight: 28.57gr / 1.008oz
 
Dimensions of String Slots
E: 0.053
A: 0.042
D: 0.032
G: 0.024
B: 0.016
e: 0.012
 
Output Jack
Style: 6.35 mm / 1/4" mono
 
Material:
Plating Specs:
Part numbers:
Weight:
Plastics
Truss Rod Cover
Style: B/W
Part Number: 140-130-840
 
 
Accessories
Case
Style: Hard Shell
Color: Black
 
Strap Locks:
Tools:
 
Manual: Gibson Acoustic Owner's Manual
COA/Other: None
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