QSC KLA12 Active Line Array Loudspeaker Portable / Wireless PA While nearly every pianist's training

While nearly every pianist's training includes the renowned exercises of Charles-Louis Hanon

For optimal playability

Sigma continue to impress by producing incredible quality at better than reasonable prices & the S000M-15E is probably the best example of this fact

Rack mount brackets included for ultimate flexibility

QSC KLA12 Active Line Array Loudspeaker Portable / Wireless PA While nearly every pianist's trainingFeatures 500 W + 500 W power module Rugged, ABS enclosure delivers light weight durability SOLO Rigging System supports deployment without tools or external hardware Ar Q Frequency Optimization quickly tunes the array with the click of a dial, adjusting for the appropriate number of boxes 10: 1 design factor supports arrays of up to 480 lbs. (218 kg) 5 KLA12 and 2 KLA181 90 18 nominal coverage (requires only five boxes to configure a 90 x 90 array)