K-Array KS3-I 21" Powered Subwoofer

The Thunder-KS3P I is a compact passive subwoofer designed with a high-performance 21" neodymium magnet woofer boasting a 4" voice coil, enabling extended excursion capabilities. This subwoofer is engineered to deliver exceptional low-frequency reproduction and impact.

Equipped with 2x SpeakON NL4 connectors, the Thunder-KS3P I facilitates seamless integration with external active systems or amplifiers. It allows the input of signals through either a 2-wire or a 4-wire cable, providing versatile connectivity options. Additionally, these connectors enable the routing of the signal to other loudspeakers, allowing for efficient sound distribution and system expansion.

K-Array KS3-I Specifications:

• Type: Active subwoofer
• Transducers: 21" neodymium magnet woofer
• Frequency Response: 30 Hz – 150/450 Hz (-6 dB) crossover dependant (1)
• Crossover: DSP-controlled, Low Pass @ 150 Hz, preset dependant
• Max SPL: 139 dB
• Coverage: Omni
• Connectors:
  • Line Input
  • 2 XLR-F analog / AES3
  • Line Output
  • 2 XLR-M Link analog / AES3
  • Speaker Output
  • 2 SpeakON NL4
  • Mains
  • powerCON TRUE1 TOP
  • Networking and Data
  • RJ45
  • 4 USB-A
  • Nominal Impedance: 4 ohm subwoofer
• Controllers:
  • Wi-Fi dedicated Mobile APP
  • K-framework3 via wired Ethernet connection
• Built-in DSP: Input gain, routing matrix, delay, full parametric IIR filters (Peaking, Shelving, Hi/ Lo pass, Hi/Lo Butterworth), Onboard preset, Remote monitoring
• Dimensions (W x H x D): 735 x 580 x 700 mm (28.9 x 22.83 x 27.55 in)
• Weight: 56 kg (123.4 lb)
• Material: Polyurea coated birch plywood
• Colors: Black/White/Custom RAL
• IP Rating: IP53
• Amp Module: 4-ch Class D
• Output Power: (4) 2500 W @ 4 ohm
• Power Consumption: 600 VA @ 8 Ω load, Pink noise, 1/8 rated power