The SVT-610HLF from Ampeg is the speaker cabinet for the bass player who demands the best of both worlds - deep, tight bass, with a generous helping of definition and top-end clarity. The SVT-610HLF delivers massive bass, thanks to six 10" speakers that work together to move a tremendous amount of air. You'd need three 18" or four 15" speakers to move as much air as the SVT-610HLF! And they simply wouldn't be able to respond to transient peaks as quickly as Ampeg's 10" speakers. The SVT-610HLF also delivers superb top end, thanks to its 1" horn driver which is strategically crossed over at 5kHz.