Features:

• It is configurated for near- and medium- distances within the
  sound system. It covers 60°horizontal and 40°vertical dispersion.
• Like all ONAX cabinets T15F has the same on board rigging Flyware.
  T15F cabinets can be jointed wall to wall via the convenient onboard
  mechanical connecting device. T15F is perfectly balanced and like T12L
  its main beam is 5°tilted down, which makes calculation for a line array
  system totally unneccessary
• The ONAX T15F ONAX consists of a 15" cone speaker in the center
  of a CD-horn. A concentric 2"/1" compression driver is installed in the center
  of this horn, mounted on a constant directivity horn which guarantees exact
  dispersion down to 400Hz.
• The T15F is the perfect mid-high enclosure to start a ONAX set up. Its high
  fidelity performance in conjunction with the ONAX T10-W woofer forms a
  PA system of utmost quality in even smaller venues. It can also grow to a large
  venue system by adding T12L long throw cluster builders and more pieces T10-W.
• The T15F is capable of constant 136dB SPL and features the professional
  standard in technology and sound that ELDER is known for.