L-Acoustics PA-PACK-1453 Speaker Pack: KS21 Subwoofer (x4) and LA4X Amplifier (x1)

The L-Acoustics PA-PACK-1453 Speaker Pack is an all-in-one speaker package that contains the following items:

KS21 Subwoofer (x4)

KS21 is a compact reference subwoofer designed to extend the bandwidth of A15 and A10 systems. KS21 features one high excursion, direct radiating 21‘‘ transducer mounted in a bass-reflex tuned enclosure. 

• KS21 specifications:
• Max SPL: 138 dB
• Low frequency limit: 29 Hz
• Transducers:
  • LF: 1 x 21"
• Weight: 49 kg / 108 lb
• Directivity: standard or cardioid configurations

LA4X Amplifier (x1)

LA4X is a system amplifier with integrated DSP controller – 4 x 1,000 W RMS at 4 or 8 ohms.

• LA4X Specifications:
• Architecture: 4 x 4
• Output Power: 4 x 1000 W at 4 and 8 ohms
• Power supply: Universal SMPS with PFC
• Inputs: AVB, AES, Analog
• Height: 2U
• Network: Milan-certified