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Message: <blockquote data-quote="Shonver" data-source="post: 921033" data-attributes="member: 34"><p>It's best to go for drivers that are designed for the purpose (sub-woofers), rather than be steered by brand name. The attributes that make your favourite ScanSpeak an excellent mid-bass driver do not necessarily translate into excellence on the low end. A subwoofer is the workhorse of the system. Here you need displacement, above all else. Pay more money for a model with a good motor and you also get low distortion. You can absolutely use multiple small drivers to achieve the required displacement. Keep a watch over how much power will be required to augment the passive component of your design to extend into the 20Hz to 30Hz region. For the basic design, you don't specifically need a DSP. The bass boost can be achieve through an analogue Linkwitz Transform circuit. However, equalisation and some time adjustment is always useful for proper integration of the sub into the system (which includes the acoustic environment). This is where DSP comes into its own.</p></blockquote><p></p>