(B-Stock) Sigma Guitars Custom SDR-28S All-Solid D-12 Acoust

B-stock information

Warranty:	This product comes with a 3-year warranty.
Complete	Yes
Original packaging	Missing (now in Bax Music box)
Condition of product	Traces of use (no damage/scratches)
What is a B-Stock Item? Any item we can no longer sell as new is labelled B-stock. This can be for a number of reasons, including damaged or missing packaging, or because the item shows light signs of use. In any case, you can expect the item to work just fine. Always Read the B-Stock Info Every B-stock product page includes relevant information about the item. Be sure to read it in full! Under the Product Information tab, you will find the original product description and specifications, which may refer to accessories that are not included with the B-stock item. This can be a cable, a remote control, software or any other accessory. B-Stock Product Photos B-stock photos can give you a good idea of the condition of the item, its packaging and (missing) contents. Here, what you see is what you get. The photos usually include: A photo of the original item A photo of the B-stock item plus included packaging and accessories (if applicable) A photo of the front of the B-stock item A photo of the back of the B-stock item Photos of any damage (if applicable) Original Packaging Status Packaging in good condition: undamaged, at most some tape residue Packaging damaged: box has dents, tears and/or holes Packaging missing: has been replaced with a Bax Music box. Item Condition Status: New: the product itself is like new, but the packaging may no longer look like new Traces of use (no damage/scratches): smudges, fingerprints and/or dust Scratches/damage: product has scratches and obvious damage Can I Return a B-Stock Item? Yes, our 30-day money-back guarantee also applies to B-stock items. Do I Get a Warranty on B-Stock Items? Yes, the standard warranty period usually applies to B-stock items as well.

(B-Stock) Sigma Guitars Custom SDR-28S All-Solid D-12 Acoustic Guitar with Soft Case
Product no: 5000-0026-6523 Bax Music Warranty: This product comes with a 3-year warranty.

General

With the SDR-28S, Sigma Guitars bring an all-solid D-12 acoustic guitar into the Custom Series fold. The combination of a solid spruce soundboard and a rosewood body guarantees lush acoustic depth and naturally flexible tone. The 44.5mm bone nut has been widened a touch to enhance accuracy when grabbing complex chords and fully sets up this model to support finger-picking as well as strumming techniques.

The Sigma Guitars Custom SDR-28S: Refined Detail

The Sigma Guitars SDR-28S has been given a full coat of high-gloss varnish that's then been rubbed down with ageing toner to complete a subtle and refined finish. Smaller features like the slotted headstock, open-gear Grover machine heads, and the dark ebony fretboard further contribute to the deluxe detailing that this acoustic guitar bears. To keep this model in mint condition, it comes complete with an SSC-D softshell case.

Specifications

Product features

Number of frets	20
Number of strings	6
Body construction	all solid
Complete	Yes
Cutaway	no
Sustainable product	not specified
Electro-acoustic	no
Acoustic guitar size	mid
Wood type (back)	rosewood
Fretboard wood	ebony
Wood type (soundboard)	spruce
Wood type (sides)	rosewood
For playing style	plectrum-based styles
Includes cover	no
Includes case	yes
Acoustic sound	rich and deep
Colour	wood/natural
Left-handed	no
Original packaging	Missing (now in Bax Music box)
Condition of product	Traces of use (no damage/scratches)
Body type	dreadnought

Weight and dimensions including packaging

Weight (incl. packaging)	5,8 kg
Dimensions (incl. packaging)	115,0 x 22,5 x 54,0 cm

Product specifications

Sigma Guitars acoustic guitar
- model: SDR-28S
- series: Custom Guitars
- colour: natural
body
- shape: D-12
- soundboard: solid Sitka spruce
- sides and back: solid Indian rosewood
- finish: high-gloss with ageing toner rub
- binding: white with purfling
neck
- binding: dovetail
- material: mahogany
- finish: high gloss with ageing toner rub
- profile: low
- scale length: 25.4" (645mm)
- fretboard: ebony
- number of frets: 20
- nut material: bone
- nut width: 44.5mm (1.75")
- position markers: dots
hardware
- bridge: ebony
- bridge saddle: bone
- hardware finish: nickel
- machine heads: Grover Nickel open-gear with Butterbean buttons
- pickguard: faux-tortoiseshell
- strings: D'Addario EXP16 (.012 - .053)
included: SSC-D Softshell Case

Write a review

Sam December 30, 2025

Wrote the following about Sigma Guitars Custom SDR-28S All-Solid D-12 Acoustic Guitar with Soft Case

I've had a sigma SDR28s for a couple of years - bought initially whilst my Martin D28 awaited repairs to the soundboard. The Sigma has been a revelation. The quality of materials and workmanship is as good as my Martin. It's a beautiful instrument with a strong and balanced tone. The herringbone purfling is beautifully executed. It's a keeper and will be at its best long after I am gone! Highly recommended.