Gema - classic 3 way loudspeaker

about the gema

Experience the timeless elegance and superior performance of the Gema, a masterpiece in speaker design by Danesian Audio. This large 3-way speaker is a modern tribute to the iconic speakers of the 1970s, blending classic aesthetics with cutting-edge technology. The Gema's generous enclosure, reminiscent of the golden era of audio design, houses large bass drivers that deliver deep, controlled, and tuneful basslines.

With the Gema, SB Acoustics not only revived the classic design but elevates it to new heights, offering a listening experience that is both nostalgically familiar and excitingly new. Discover the unparalleled value and performance of a speaker that proudly stands on the shoulders of giants. 

The midrange SB12MNRX2-25-4

The heart of the Gema's midrange is the 4-inch paper cone SB12MNRX2-25-4, a testament to Danesian Audio's commitment to quality. This driver ensures exceptional midrange clarity with its high efficiency, low moving mass, and linear response. 

This driver is designed for dedicated midrange applications. It features a Norex paper cone, known for its natural sound characteristics, and a low damping rubber surround for reduced distortion. The driver's design aims to provide a clear, detailed midrange, essential for the accurate reproduction of vocals and instruments. Midrange is crucial in music as it carries the most critical sounds that the human ear is most sensitive to, including most vocals and many instruments. This driver, with its specialized design for midrange frequencies, is well-suited to ensure clarity and richness in this vital part of the audio spectrum. 

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the Tweeter SB26STAC-C000-4

The synergy between the articulate midrange and the crisp, open top end is achieved through the 1-inch soft dome SB26STAC-c000-4, complete with a die-cast aluminium faceplate, optimized rear chamber, and full copper cap. 

This tweeter, designed for high-end audio applications, is particularly suitable in 3-way speaker systems. Its notable characteristics include a fabric dome for smooth high-frequency response, a die-cast aluminium faceplate for stability, and a vented rear chamber for reduced compression. These features contribute to its excellent performance in delivering crisp, clear highs, making it highly suitable for systems where detailed and accurate high-frequency reproduction is crucial. 

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The woofer SB34NRXL75-8

The very foundation of music is in the bass and the Gema used one of the best bass woofers in SB's stable, the SB34NRXL75-8.

This 12-inch woofer, designed with a Norex paper cone, offers a balance of rigidity and damping for a clean and detailed bass response. Its large voice coil and optimized motor system enhance power handling and reduce distortion, making it ideal for delivering deep and dynamic low frequencies in the Gema's large 3-way design. 

The woofer's characteristics ensure a solid foundation for the Gema's overall sound profile, complementing the midrange and tweeter drivers to create a full, rich audio experience. 

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Cabinet design

Our well-braced cabinet, a homage to our heritage, features a large slot port tuned to 28 Hz and a sealed enclosure for the dedicated midrange. The quality and value is evident in the design & recommendation to use high-quality 18mm plywood for the speakers, ensuring durability and exceptional sound quality.


The Gema crossover is meticulously designed by Danesian Audio, SB acoustics' danish engineers.  This provides the most seamless integration between all drivers and cabinet resulting in the speakers bringing out the intent of the recording by seamlessly integrating with any room you place them in.


The ideal setup for the Gema speakers includes a spacing of 2.5-3 meters, ensuring ample room for the sound to develop and fill your space. The suggested placement on a stand or plinth, elevated by about 25cm and slightly tilted, is designed to enhance your listening experience.


Frequency Range: 36 – 24000 Hz

Sensitivity ( 2.83V / 1m ): 87 dB

Nominal Impedance: 6Ω

Max SPL: 108 dB

Recommended Amplifier: 50 – 200 W

Crossover Frequency: 680/ 3000 Hz

Enclosure Type: Bass reflex

Port tuning Frequency: 28 Hz

Drive Units: SB26STAC-C000-4, 4 inch SB12NRX25-4 & 12 inch SB34NRXL75-8

Download Speaker Design Plans