• Image of JK-7b SIGNATURE MODEL O2 USA SERIES CUSTOM JACK KOSTO SEVEN SPIRES PROTOTYPE

As we continue to evolve and prosper, we look to innovative new talent and manufacturing processes that will level up our status. The JK-7 is a passion project commandeering 10 months of teamwork between Artist / Engineer / Luthier communication pathways.

Much more will be revealed for your perusal, but for now imbibe the specs and official promo pic for our newest "Work of Hart". The JK-7!

The "B" version has a few tweaks from the original to provide a full production model available to the public. This is an actual prototype that Jack is currently testing to finalize all of the specs for a standard model.

It will be available for purchase as soon as he completes his trial usage. Approximately 1-2 months from 11/2023.

*All specs subject to change. Contact us for more details.*

CONSTRUCTION::

Base: DEEP SET NECK

Body Description: MODDED RA-DC

Body Wood: ALDER

Top Wood Upgrade : QUILTED MAPLE GRADE AAA TOP

Body Binding: NATURAL

Other Body Options : BEVELED EDGES

NECK:

Headstock : SPLIT 4x3

Neck Wood : MAPLE WITH CARBON FIBER REINFORCEMENT

Fingerboard Wood Upgrade : FLAMED ROASTED MAPLE

Fingerboard Inlays: SPIRES COMPASS

Inlay Material : RICHLITE

Fingerboard Options : NONE

Side Dots: LUMILAY BLUE

Thickness 1st Fret: 19mm

Thickness 12st Fret: 21mm

Nut Width: 48mm

Butt Width: 68mm

Scale Length: 25.5"

Number of Frets: 24 STAINLES JASCO MJ

Neck / Head Binding: HEADSTOCK NATURAL

Neck Radius 15.7"

PARTS

Bridge
Upgrade : FLOYD ROSE 1000 PRO

Tuners: GOTOH 360 STANDARD NON LOCKING

Hardware Color:

Base: BLAK

Pickup Rings: NONE / DIRECT MOUNT

Knobs: ONE SHOOTER

Battery Cavity: YES 9VT.

Upgrade option: FISHMAN LI-IO USB UNIVERSAL PACK

Truss Rod Cover: Yes

ELECTRONICS:

Pickup Route: HB/HB

Control Knobs: VOLUME DPDT / 3 - WAY / 2X MINI TOGGLE

Upgrade:
Bridge Pickup: FISHMAN FLUENCE MODERN BLAK (C) SC

Neck Pickup: FISHMAN FLUENCE MODERN BLAK (A) SC

Pickup Selector. 3 way Slotted

FINISH:

Color / Finish:

Upgrade :
YSERA - TRANSPARENT EMERALD SEA GREEN / BLAK BLEND

Logo Color: EMBOSSED SILVER

Case: GATOR HARDSHELL

Upgrade Option
MONO CREATORS CLASSIC OR VERTIGO
GATOR JOURNEYMAN OHSC. CONTACT US FOR PRICE AND AVAILABILITY

Headstock Color : MATCH BODY

ADDITIONAL : FU TONE TREM SPRINGS RED
STRAP LOCKS
RECESSED BARREL JACK
OFFICIAL C.O.A.

(1) PROTOTYPE DEMO MODEL
WILL BE AVAILABLE IN EARLY 2024! IT WILL HAVE SLIGHT WEAR AND USAGE FROM BEING IN A STUDIO ENVIRONMENT. (JACK'S STUDIO)

APPROXIMATE NEW BUILD TO ORDER TIME IS 8 - 10 MONTHS

FEEL FREE TO MESSAGE US WITH ANY QUESTIONS!

[email protected]

BASE MSRP $2500
RETAIL MSRP AS SHOWN $3500