JBL 70 cm Extension for CBT 70J-1 Line Array, 4 x 5 Drivers. 500W continuous pink noise, 8 ohms, linking bracket included, 70 cm tall for 140 cm tall CBT 70J-1/JE-1 array, connect 70J-1 and 70JE-1 in parallel. (priced and sold individually). Combined with CBT 70J-1, system response is 45 Hz 20 kHz with well controlled pattern to 250 Hz.