18 Sound 12MB710 – High-Sensitivity Ferrite 12-Inch Mid-Bass with 100 dB Output and 1000 Watt Program Handling
The 18 Sound 12MB710 is a very high sensitivity (100 dB 1W/1m) mid-bass driver with high power handling capabilities, sharing identical specifications with the 12MB720 and 12MB810 — this appears to be the third model number 18 Sound uses for what is, on every verifiable parameter, the same underlying driver: same 75 mm copper ISV coil, same SDR distortion reduction, same FEA-optimised ferrite motor, same Thiele-Small parameters, same 7.8 kg weight and mounting dimensions, and the same “limited distribution U.S. only, contact Universal Music” note.
It can be used as either a bass/mid driver in compact two-way reflex enclosures or as a direct-radiating or horn-loaded, dedicated midrange driver, in multi-way touring and fixed installation concert and arena systems. The 75 mm diameter state-of-the-art copper voice coil employs 18 Sound’s Interleaved Sandwich Voice Coil (ISV) technology, resulting in an extremely linear motor assembly with a reduced tendency for eccentric behaviour when driven hard.
The excellent performance capabilities of this loudspeaker are further enhanced by the Single Demodulating Ring (SDR), designed to dramatically reduce the intermodulation and harmonic distortion and improve transient response. The magnetic structure has been optimised using FEA CAD resource, maximising the flux density in the voice coil gap and its cooling. An exclusive treatment has been applied to the cone giving it water-repellent properties.
Given three separate model numbers (12MB710, 12MB720, 12MB810) publish identical specifications, builders should confirm with Universal Music which specific number corresponds to current production, and whether any of these represent distinct SKUs, packaging variants, or historical naming for the same physical product — the published data gives no basis for distinguishing between them.
Design and Construction of the 18 Sound 12MB710
Its curvilinear paper cone, made from a special high-strength wood pulp, has been designed to achieve the best possible linearity within its intended frequency range and to control bell-mode resonances around the cone circumference. The cone is carried by a multiroll suspension formed of a linen-like material, which is more resistant to ageing and fatigue than traditional materials.
The 75 mm diameter copper voice coil, with a 15 mm winding depth operating in a 10 mm magnetic gap, employs Interleaved Sandwich Voice Coil (ISV) technology. The 20.5 Tm force factor driving 59 g of moving mass produces 100 dB sensitivity and the 0.20 Qts / 230 Hz EBP alignment.
At 7.8 kg, 310 mm overall diameter, 283 mm baffle cutout, and 142 mm depth, every dimension matches both the 12MB720 and 12MB810 precisely.
Performance and Applications for the 18 Sound 12MB710
The 18 Sound 12MB710 delivers 100 dB sensitivity across a 90 Hz – 4000 Hz bandwidth, with 500 W AES / 1000 W continuous program power handling. 18 Sound recommends a 25-litre (0.88 ft³) vented enclosure tuned to 60 Hz — identical guidance to the 12MB720 and 12MB810.
Conclusion – 18 Sound 12MB710 Mid-Bass Driver
The 18 Sound 12MB710 is a high-sensitivity ferrite 12-inch mid-bass driver that, on every specification available, is functionally identical to the 12MB720 and 12MB810. For U.S. market applications requiring this specification profile, all three model numbers appear to represent the same product — contact Universal Music directly to confirm current part numbering before specifying.
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About 18 Sound
18 Sound products are proudly made in Reggio Emilia, Italy, combining advanced technology with Italian craftsmanship. Known for their high-performance professional audio components, 18 Sound is a trusted name in the global audio industry. Their state-of-the-art manufacturing and strict quality control ensure exceptional reliability and sound clarity. 18 Sound products are designed to meet the demands of speaker builders and audio professionals, 18 Sound offers premium products with outstanding value and performance worldwide.
