Transmission Audio’s Ultimate
These have to be the most expensive speaker i have ever seen, they are called the transmission audio's ultimate. They have impressive array of speakers, a features of forty 15” sub-woofers and another twenty-four 8” woofers. They also has twelve 500W speakers, an Audio Laboratory BP-1 dual-mono power amp, and a BC-1 preamp. You wouldn't believe how much they cost, they cost $2,000,000.