See the Neman Dual 18" Horn Subwoofer Design by Scott Hinson here.
At SB we believe in the importance of subjective listening during the development process to complement the advanced FEM stimulation, motor optimization, diaphragm design, voice coil technology, adhesives etc. We have done extensive listening and also compared to several high priced competing transducers, and at SB Audience we are really excited about the sound of these new drivers.
The new line of products incorporate a heavy duty distinctive looking cast aluminium rear chamber that visually define the new products. The chamber has been optimized to minimize resonances and absorb reflections.
Proprietary cone paper material with silk cotton tree
Double spider for high stability suspension
Shorting ring in motor system for reduced distortion
Cooling device on yoke for improved heat transfer
4.5" voice coil with APC (Advanced Polymer Coating)
AISVW voice coil wire for high power handling
Cast aluminium chassis
With well over 35 years of experience in professional sound reinforcement drivers, we strive to bring this know-how to the world with the most competitive high quality drivers on the market.
SB Audience is spawned from the heavyweight manufacturing of Sinar Baja Electric Indonesia and has serviced well known brands in the PRO audio industry for decades with in house engineering and manufacturing. There are three categories within our standard product range: Bianco, achieves good performance at the most reasonable cost. Rosso, aims at high performance at an attractive price, and Nero is our higher performance line still achieving exceptional price performance ratio.
Some possible box alignments
Sealed box of 3 cubic foot for a 3dB down of 60Hz, dB down of 45Hz and 12dB down of 30Hz. This gradual roll off can be easily boosted by your DSP or plate amplifier. 123dB at 500 watts
Vented box of 7 cubic feet with three 4" vents by 12" long. 3dB down at 30Hz. 6dB down at 25Hz. 123dB at 500 watts