The SH25 loudspeaker from Danley Sound Labs includes a one-inch tweeter, four 4-inch mid-range drivers, and eight 6.5-inch woofers. The loudspeaker, which is arrayable both horizontally and vertically, has an 80 Hz to 18 kHz frequency range, a 104 dB sensitivity, and a 140 dB maximum output. According to the company, when four SH25s are packed together, the low-end drops to 50 Hz. Price: N/A. For more information, contact Danley Sound Labs at 770-535-0204 or at www.danleysoundlabs.com.