Dayton Audio - MB820-8 8" Professional High Power Midbass Driver 8 Ohm
Amazon.com: Dayton Audio DSP-408 4 Input 8 Output DSP Digital Signal Processor with Built-in EQ, Crossovers, Time Alignment, and Input/Output Mixing for Home and Car Audio : Musical Instruments
Amazon.com: Dayton Audio PS95-8 3-1/2" Point Source Full Range Driver 8 Ohm : Electronics