Transmission Audio's Ultimate system holds the title of the world's most expensive speaker.
Ultimate consists of twelve 500W speakers, an Audio Laboratory BP-1 dual-mono power amp and a BC-1 preamp. In addition, Ultimate also features forty 15" subwoofers and another twenty-four 8" woofers. On the high-midrange and high frequency levels, ribbon technology is employed for high fidelity and reliability.
Each Ultimate speaker comes with its own 31,000 Watt power amplifiers. The manufacturer also claims the Ultimate can generate up to 146dB SPL.
Price: $2 million