Acoustic guitarAuditorium

Core-OC Spruce

Name: Cort Core-OC Spruce — Open Pore Trans Black
Brand: Cort
SKU: B08QYL16VV
Rating: 4.5 (9 reviews)

Open Pore Trans Black

The classic spruce-and-mahogany pairing, all solid, in the most versatile body size

8.8

Fretline score

Amazon rating

4.5 (9)

Price band

$500 - $1,000

See it on Amazon

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The short version

Spruce top over mahogany back and sides is the combination most acoustic guitars have used for a century, and there is a reason: spruce is stiff and light so it converts string energy efficiently and gives the bright, clear attack the instrument is known for, while mahogany underneath adds warmth and controls the low end. Doing it all-solid, as here, is what separates a keeper from a starter. The OM body is smaller than a dreadnought, which trades a little raw volume for a more even response and a body that is genuinely comfortable to sit with — the reason it is the shape many players end up preferring. Bone nut and saddle, Elixir coated strings and a case are all included.

Score profile

Six axes, scored 1-10. These are editorial judgements about what this instrument delivers for the money — not measurements, and not anyone else’s ratings.

Build: 9.0
Tone: 9.0
Versatility: 9.0
Comfort: 9.0
Hardware: 8.0
Value: 9.0

8.8overall / 10

Scores are Fretline editorial ratings on a 1-10 scale. They are our own assessment and are not supplied or endorsed by Amazon or by any manufacturer.

Full specifications

Full specifications for the Cort Core-OC Spruce
Body
Brand	Cort
Model	Core-OC SpruceOpen Pore Trans Black
Body	OM with Venetian cutaway
Body wood	Solid mahogany back and sides
Top	Solid Sitka spruce
Neck & fingerboard
Neck wood	Mahogany
Neck profile	C shape
Scale length	25.5" (648 mm)
Fingerboard	Ovangkol
Radius	15.75" (R400)
Frets	20
Nut	Genuine bone
Nut width	1.6875" (43 mm)
Hardware
Bridge	Ovangkol
Tuners	Die-cast with black metal knobs
Electronics
Electronics	Fishman Presys VT
General
Type	Acoustic-electric guitar
Strings	Elixir Phosphor Bronze Nanoweb Light (.012-.053)
Finish	Open Pore Trans Black
Orientation	Right-handed
Case	Included

21 verified fields. Specifications come from the manufacturer first, then the Amazon listing, then authorised dealers — sources are listed at the foot of this page. Fields the manufacturer does not publish are omitted rather than estimated.

The good and the bad

What we like

All-solid spruce and mahogany, the classic and most predictable acoustic pairing
OM body is comfortable to hold and even across the range
Bone nut and saddle, Elixir coated strings and a case included
Standard 43 mm nut width will feel familiar from any other steel-string

What we do not

Less raw volume and low-end push than a dreadnought
House-brand ovangkol hardware rather than ebony
Owner review volume is still low

Who it is for

Skill level

BeginnerIntermediateAdvancedProfessional

Styles it suits

FolkBluesCountryPopIndieRock

What owners and reviewers report

Patterns we found across published reviews and owner feedback. These are summaries of recurring themes — we do not reproduce or invent individual testimonials.

What comes up most

Owners praise the all-solid construction and the resulting tone for the price
The included case and coated strings are noted as good value

Frequent complaints

A small number of owners mention wanting a wider nut for fingerstyle

Recognised strengths

All-solid construction with bone hardware is consistently seen as the reason to choose it

Recognised weaknesses

Review volume is low enough that consistency between examples is unproven

The verdict

If you want one all-solid acoustic that does everything, this is the sensible pick of the Core range: spruce over mahogany is the safe, proven voice, and the OM body suits both strumming and fingerpicking without excelling at only one. The 43 mm nut is standard width, so it will feel familiar coming from almost any other guitar. Compared with the all-mahogany Core-DC it is brighter and more articulate; compared with the blackwood models it is more conventional and easier to predict. Owner reviews are still few, which is the one real unknown.

See it on Amazon Compare with another instrument

Sources

Amazon rating captured 2026-08-26. ASIN B08QYL16VV.

Strings for this guitar

All strings

It ships with Elixir Phosphor Bronze Nanoweb Light (.012-.053). Staying at that gauge keeps the setup and the neck relief as the factory left them; going a step lighter makes bending easier, a step heavier gives more volume and tension. Anything more than one step either way usually needs the truss rod and the intonation adjusted.

Elixir · Strings
NANOWEB 80/20 Bronze Acoustic
Same gauge this guitar ships with — a straight swap, no setup changes.
8.2/10
Elixir · Strings
NANOWEB Phosphor Bronze Acoustic
Same gauge this guitar ships with — a straight swap, no setup changes.
8.0/10
D'Addario · Strings
XS Phosphor Bronze Coated Acoustic
Same gauge this guitar ships with — a straight swap, no setup changes.
7.8/10

What else you need

All accessories

The highest-scoring option in each category that suits this instrument. If you have never owned a guitar before, the starter guide explains what each of these is for and what you can safely skip.

Fender · Tuners
FCT-2 Professional Clip-On Tuner
The tuner to buy first, before strings, before a strap, before anything
7.8/10
Dunlop · Picks
Tortex Standard
The Delrin pick that replaced tortoiseshell, in the gauge most people settle on
8.2/10
GLEAM · Stands
Adjustable Guitar Stand
The accessory that decides whether the guitar gets played at all
7.4/10
CAHAYA · Bags and cases
6 Pocket Acoustic Gig Bag
Six pockets, which is five more than most bags and the reason to pick this one
7.8/10