Development Concept

Development Concept

SG1000, 2000 and SG3000, which was released shortly after, have long been the flagship models in Yamaha’s electric guitar lineup. However, there have been countless changes in the music scene and the emergence of many new music styles since the birth of the SG guitars. Along with such changes we have witnessed huge improvements and changes in amplifiers and effects - suffice to say, players’ demands today are totally different from those when the SG was introduced. To satisfy those demands, and make today’s SG as iconic and relevant as the original models, the SG1820 series was developed. Using direct feedback from Yamaha’s London, LA and Tokyo Artist Relations offices, the guitars are specced with the custom-shop parts that artists want and need and finished with the new simpler cosmetics that players have been asking for.

Featuring Japanese handmade set-neck construction, African Mahogany body and neck and maple top, the new SGs feature totally updated, no-compromise specifications to make the SGs perfect for today’s musicians and finally make the stadium-ready guitars that Yamaha have been producing for artists available to the public.

Body Material / Structure

While preserving the basic structure of Maple Top/Mahogany Back and SG’s iconic double cutaway design, the body of SG1820 was redesigned to capture the sound and look which today’s guitarists want. The contoured body top curves more deeply than previous models - the top arc of the curve, the center part of the body, has optimized wood-mass to maximise string-body vibration from the from the bridge and tailpiece. The deep curve maintains the guitar’s optimum weight balance and enhances the SG’s stunning shape. The back contour featured on SG1/2/3000, designed for increased comfort when the guitar was played high on the strap, has been modified to a flat back on the new SGs. The new flat back design increases the volume of Mahogany to significantly increase the low-mid response and presence while reflecting ergonomics needed for the lower stance modern players take with SGs.

Spezielle Tonabnehmer

SG1820: Seymour Duncan ‘59

A classic, warm humbucker with smooth midrange and rich high-end. Works perfectly with SG1820 to give a hot-vintage tone with plenty of presence and depth.

SG1802: Seymour Duncan SP90-3

A high-output version of the classic P90 single coil pickup utilizing perfectly balanced ceramic magnets for powerful, punchy tone with incredible dynamics and openness.

SG1820A: EMG-85 (neck), EMG-81 (bridge)

The pickups of choice for modern, high-gain players. Close-aperture coils and balanced magnets (ceramic in the 81, alnico in the 85) give a rich, varied tonal palette with immense detail, clarity and ability to cut through the mix.


With countless custom-shop artist-specced SGs being produced with Rosewood fingerboards instead of the traditional SG’s ebony board, we selected premium rosewood for the fingerboard on the new SGs. A warm, well-balanced tone and great feel match modern tones and playing styles perfectly.


Switchcraft Toggle Switch / Noble Pot

Super-premium electronic parts are selected for the new SG guitars only after meeting Yamaha’s exhaustive testing criteria. Our choice of the finest switches and pots, the same as those chosen by pro guitar techs on stages all over the world, means that you can step on stage night after night confident that all of the little details are taken care of.

I.R.A. / Initial Response Acceleration

Hvis du noensinne har spillet på en annen gitarists gitar og ikke klart å få det til å klinge rett, kan det være fordi, din måte å spille på er annerledes enn hva gitaren er ""vant til"". En gitar endres nemlig når den blir spilt på gjennom mange år, og det kan ta tid for en gitar, å tilpasse seg din måte å spille på. Spenninger mellom de forskjellige deler såsom finish og tre, kropp og hals og gripebrett, sadel, stol osv. skal utløses før alle delene kan resonere fritt sammen som et helt instrument. Det tar lang tid. Gjennom IRA-teknologien, utløses disse spenninger ved å utsette gitaren for noen helt bestemte vibrasjoner. Når dette er utført reagerer gitaren mere presist på gitaristens spill. Det gjør også at gitaren raskere ""venner seg"" til din spillestil. Det gir også en fantastisk sustain (RSP20CR).

TonePros Bridge / Tailpiece

TonePros’ lighter bridge and tailpiece design enhances the vibration of the guitar’s body by reducing the mass of the metal parts. The locking design ensures the bridge and tailpiece are tightly anchored on their mounting studs for ultra-efficient vibration transfer, maximizing sustain and improving clarity.

Grover Locking Tuners

The SG’s strings are locked in place at the post to ensure zero slippage and complete tuning stability along with quick, efficient string changes.

Graph Tech Nut

Graph Tech captures the best properties of bone nuts - exceptional resonance, amazing clarity and smooth sustain - while improving on them with permanent lubrication, better longevity and easier cutting.


The SG’s headstock has been reshaped to a slightly smaller size to improve body balance. The classic ‘flower pot’ head mark has also been down-sized to match with the new headstock size.

Both the SG1820 and 1802 feature traditional SG inlays, perfectly proportioned to the new, smaller headstock. (left)

The SG1820A’s unique outline design perfectly updates the SG’s classic style for a modern, aggressive look. (right)

Control Knobs

Control knobs on all three models complement guitar designs. SG1820: Speed Knob, SG1802: Barrel Knob, SG1820A: Metal Knob

Position Marker

Position marker designs complement the instrument’s looks. SG1820: SG Arrow, SG1802: Vintage Dot, SG1820A: Outlined Arrow.

Position Marker Position Marker Position Marker