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Sigma SOMR-28 Acoustic Guitar

The Sigma SOMR-28 OM guitar combines Solid Sitka Spruce for the top with Solid Indian Rosewood for the back and sides. Beautifully built, this guitar is highly rewarding for the fingerstyle guitarist. A jet black ebony fretboard is complemented by a bone nut and saddle, while Grover open-gear tuners complete the package.

The engine of this guitar is the Sitka Spruce top, with a brightness and attack which brings the dark Rosewood to life. Rosewood is thought of by luthiers as a “slow” wood, lacking the quick response of, say, maple, but rewarding with acres of sustain and rich overtones. These woods are combined in a traditional OM body - the body style of choice for fingerstyle players who prioritise balance and articulation. Not quite as loud as a dreadnought, the OM makes up for this in refinement, responding to the skilled guitarist’s most subtle inputs. The pinched waste and shallower body also make it very comfortable to play seated.

In terms of aesthetics, the Sigma SOMR 28 has a premium traditional look, straight out of the golden age of acoustic guitars. Multi-strip purfling surrounds the body to the back and front, matching the multi-strip rosette. A tortoiseshell pickguard protects the top from pick damage, while subtle abalone markers are inlaid in the fretboard. The body is white bound, setting off the woods and purfling perfectly. Open-gear Grover tuners provide solid and accurate tuning, while an included Softshell Case ensures your prized guitar looks its best for years to come.


Body Size: 000-14 Fret
Construction: Dovetail Neck Joint
Top: Solid Sitka Spruce
Back & Sides: Solid Indian Rosewood
Neck: Mahogany, Low Profile
Nut & Saddle: Bone
Fingerboard & Bridge: Ebony
Scale Length: 25.4” (645 mm)
Neck width at nut: 1-3/4” (44,5 mm)
Truss Rod: Two way Truss Rod
Tuning Machines: Grover Nickel Open-Gear w/ Butterbean Knobs
Finish: Polished Gloss w/ Aging Toner
Softshell Case: SSC-OM included
Strings: D´Addario EXP16

Acoustic Centre offers free Australia-wide shipping on all accessory orders (excluding bulky items including amplifiers and cases) over $50, and free courier shipping with tracking on all instruments and amplifiers over $599, and cases over $299. We also offer Express shipping options at checkout.

Occasionally due to issues with delivering to remote or unusual destinations, we aren't able to offer free postage. We reserve the right to retract the offer if freight costs exceed 15% of your purchase. We will always notify you if there is an issue and offer a full refund or arrange alternative delivery options.

All strings and accessories will be shipped with tracking via courier or Australia Post. Other items including guitars and amplification equipment will be shipped using our courier service providers, with a tracking number and signature on delivery.

The Acoustic Centre ships goods Australia-wide, however at this time we are unable to accept international orders. Please contact us on (03) 9699 5691 to enquire about a special order. The Acoustic Centre is located at 206 Park St. South Melbourne, Victoria, Australia. We ship daily at 2pm (Monday to Friday) excluding Victorian public holidays.
You are welcome to pick your order up instore, but we will require photo identification to ensure against fraud. If you require more info on shipping to your area, or have any questions regarding shipping, please contact us via or by phone on (03) 9699 5691.

Zip Money - Buy Now, Pay Later.

We offer 3 Months interest free on purchases under $1000, and 6 Months interest free on purchases over $1000.

Click here for more information and Application form - it only takes a minute!

Studio 19 RentalsWe rent the things people love.

Studio19 Rentals operates Australia’s foremost in-store Rental program for musical instrument retailers, and allows you to have the gear of your dreams now for a low monthly price. 

Studio19 offers:

  •  Low monthly payments
  •  Apply to buy at any time
  •  Protection plan available
  •  Return anytime after the minimum rental period
  •  No ongoing account keeping fees or charges

Click here  for more details.