These Bts combo may look laidback, but the sound has got more jump than an NBA tip-off giving up Bts classic, much-admired bass, mid and high sound in an innovative and versatile package. You can stand these combo upright or tilt them back. it's excellent for a huge range of applications, from rehearsing, playing audio gigs. have fully adjustable shape control features volume, bass, mid and high.The Bts gives you more big bottom, mid and high than aluminum-cone driver and a house-quaking sound. And its also very affordable!