Markbass Artist Jeff Berlin is the Director of The Players School Of Music, located in Florida!Founded by Jeff Berlin in 1996, The Players School of Music is a music school created to improve music education by teaching studentsaccording to their ability to learn. The music school introduced a bold new concept in music education: that students had time to becomefamiliar with their homework and practice without pressure. Memorization of music was removed from study. Review and daily practicewere emphasized at this music school.The CMD JB PLAYERS SCHOOL combo, named as Jeff"?s great Music School, is the perfect choice for students... not only at The PlayerSchool of Music but... worldwide!We know how is important for student to practice and play with a good professional sound, as well as to have a compact, light andportable combo.This combo is a smart choice which satisfy all these requests, and it"?s inexpensive besides it features the same quality standards applyto all of our products. 1 x 15"?200W RMSReflex RearImpedance 8 ohmsAmp Output PowerPreamp250W @ 4 ohm / 150W @ 8 ohmSolid StateFrequency ResponceSensitivity dB SPLWeight Kg/lbs40Hz to 5KHz10015.7 kg CMD JB PLAYERS SCHOOL