Replacement woofer for ART 915-A.

Also used with new NX series-Line products NX915-A.

This woofer has been designed to cope with the additional output power from the new 9 series products. Substitutions will not work as intended. The high output is because of the high current capability into 2 ohms from the new DR1050 amp platform utilised in the 9 series. Using a different woofer (8 ohms or 4 ohms) will result in lower SPL.