This is a master monitor paired with a slave monitor. The Ellipse 8 from Tannoy is a 3-way powered monitor that offers an exceptional frequency response of 55Hz to 40kHz, ideal for wideband monitoring in mixing studios, broadcasting control rooms, or post-production facilities. An 8" Dual Concentric driver provides low and midrange tones, while the 1" Dual Concentric tweeter provides crisp, natural treble. The monitor has a precision engineered elliptical enclosure that reduces internal standing waves. The master monitor has been tested with the pink noise and is fully functional. The slave monitor connects to the master with CAT5 cables (not included). Comes with original power cables and shipping boxes.