3 low-pass filters (80Hz, 100Hz, 120Hz) in S3218A are available to choose according to different venues and music styles. There is also phase switch. All connectors and function buttons are on the back panel. S3218A subwoofer is with 1-way XLR for input and output. Signals can be sent to different speakers for sound distribution.

FEATURES

• Maximum SPL 140dB
  
• Customized driver
  
• Built in DSP with 48kHz signal sampling frequency
  
• Class D amplifier
  
• Advanced cooling system in the driver
  
• Optimized, light weight cabinet design for easy usage
  
• Comprehensive accessories for different applications

SPECIFICATIONS

• Type:  Active DSP-controlled Subwoofer
  
• Frequency Response (-10dB): 26Hz-135Hz
  
• Maximum Calculated SPL/1M(Continuous/Peak):134dB/140dB
  
• LF Driver: Customized 2×18” driver, 4.0” voice coil
  

DSP

• Processor: 48kHz signal sampling frequency
  
• Presets: 80Hz, 100Hz, 120Hz
  

AMPLIFIER

• Amplifier Circuitry: Class D
  
• Power (RMS standards): 2000W
  
• Peak Power: 4000W
  
• Frequency Response (1W 8Ω 2ch): 20Hz-20kHz(±0.5dB)
  
• Intermodulation Distortion: <0.05%
  
• Total Harmonic Distortion: <0.05%
  
• Cooling System: Cooling with fans, air convection
  
• Protection: DC protection, short circuit protection, overheat protection, input
• overload protection, output overload protection, soft startup protection,
• overvoltage protection, undervoltage protection
  
• Signal Input: Female XLR
  
• Signal Output: Male XLR
  
• Power Input: Power connector
  
• Working Voltage: 100V-130V~ or 220V-240V~ (±10%,50/60Hz）
  
• Power consumption (1/8 output power): 237W
  

CABINET

• Cabinet Material: CNC machined plywood
  
• Cabinet Colour: Black
  
• Grille: Iron mesh
  
• Handles: 4 side
  
• Pole Mount: M20 base Φ35mm