Dual 12” (305mm), High Output, Powered, CORE Processed, Bandpass Subwoofer

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    The SW212A is a very compact Band-Pass/Bass-Reflex subwoofer providing high output and extended low frequency response.

    It is equipped with a two 12” neodymium transducers with a 3.5” aluminium voice coil, large displacement suspension system, and water repellent cone, able to provide clean and undistorted LF reproduction at very high SPL .

    The system processing is based on the CORE2 DSP platform designed by the PROEL R&D Laboratories using one of the most advanced SHARC DSP for audio applications. It features 40bit floating point resolution and top-quality 24bit AD/DA converters, for a perfect signal integrity, dynamic range in excess of 110dB, and superior sonic performance. Thanks to its massive processing power, the CORE2 platform is capable of providing the most sophisticated algorithms for speaker processing, together with remote control and networking capability.

    The PRONET AX control software, working on a solid and reliable CANBUS based network protocol, provides an intuitive interface for the remote control of the whole system, with the possibility of EQing, delaying, managing the protection functions, and monitoring the status of the amplifier.

    The SW212A is powered by a new generation of CLASS D power amplifier with digitally-controlled SMPS.  The innovative technology used for these amplifiers offers performance at the top of the range, such as superior sound definition at any audio frequency, very high dynamics for low level signals, and very low distortion even at maximum power. The amplifier’s superior sound quality can be compared with top-of-the-range AB-class analog systems, while it features higher dynamic range, very compact size, light weight, and efficiency above 90%.

    The amplifier module employed in the SW212A features also PFC (Power Factor Correction), a technology able to guarantee always the highest level of power regardless of any eventual fluctuations of the power supply, and to reduce power consumption (less than 0.9W in standby) while enhancing reliability and consistency in all operating conditions. It delivers in an ultra-compact package 1400W from each of its two channels: one channel is used to drive the two 12” woofers, the other, through an output SPEAKON connector, can power AX16/8CL line array modules or other AXIOM speakers.


    The SW212A has been mainly designed to provide the optimal low frequency extension to the AX16/8CL line array modules. The built-in power module can provide 1400W to power up to four AX16CL line array modules connected to the output SPEAKON. The built-in CORE DSP provides 4 presets for different combinations: 2, 4  or 1 columns plus 1 user preset (additional presets for processing other AXIOM speakers are also available).

    The SW212A features on the top panel a special metal plate and it comes with a dedicated bracket for fast coupling with the AX16/8CL’s rigging hardware. Using this simple system, up to two AX16CL or four AX8CL modules can be easily installed on an SW212A.

    The standard system, composed of four AX16CL line array modules and two SW212A subwoofers, features 5600W of total power and a line-array dispersion pattern, making it the perfect solution for high-performance portable sound reinforcement applications.


    • Band-Pass/Bass-Reflex Active Subwoofer 
    • Two 12” Neodymium woofers with 3.5”  voice coil
    • Water repellent cone
    • Very compact enclosure
    • Very good output-to-weight ratio 
    • 2800 Watt Class D amplifier with PFC Switch Mode Power Supply 
    • 40 bit floating point CORE processing
    • Optimized presets for use in combination with AX16/8CL line array modules
    • Fully networkable with PRONET AX remote control software
    • 18mm birch plywood enclosure
    System’s Acoustic Principle Band-pass / bass-reflex
    Frequency Response (±3dB) 38 Hz  –  220 Hz (Processed)
    Maximum Peak SPL @ 1m 133 dB 
    Type Two 12” (320mm) woofer, neodymium magnet, 3.5” (88mm) VC 
    Cone High stiffness, water repellent 
    Input Impedance 20 kΩ balanced, 10 kΩ unbalanced
    Input Sensitivity  +4dBu / 1.25 V
    Signal Processing CORE2 processing, 40bit floating point SHARC DSP, 24 bit AD/DA converters
    Direct access Controls 4 Presets (2 x AX16CL / 4 x AX16Cl / 1 x AX16CL), Network Termination, GND Link
    Remote Controls PRONET control software
    Network protocol CANBUS 
    Amplifier Type Class D with SMPS and PFC
    Output Power 1400W + 1400W  (Out1: SW212A - Out2: AX16CL or other AXIOM loudspeakers)
    Mains Voltage Range 100 - 240 V AC 50/60 Hz
    Consumption 700 W (nominal) / 2500 W (max)
    IN / OUT Connectors Neutrik XLR-M / XLR-F
    IN / OUT Network Connectors ETHERCON®(NE8FAV)
    Mains Connectors PowerCon® TRUE 1 (NAC3PXTOP)
    Cooling Variable speed DC fan
    Dimensions (W x H x D) 710 mm (27.9”) x 354 mm (13.9”) x 700 mm (27.6”)
    Enclosure Material 18mm, reinforced phenolic birch
    Paint High resistance, water based paint
    Transport 4 handles
    Net Weight 43.5 Kg (95.9 lbs)
    3D Model
    sw212a-3D.dwgSW212A Technical Drawing 3D
    Data Sheet
    SW212A datasheet 2021.pdfSW212A Data Sheet
    Technical Drawing
    sw212a-2d.dwgSW212A Technical Drawing
    User Manual
    SW212A_UM_ENG.pdfSW212A User's Manual
    USB2CAND USB2CAND USB to CAN converter with two network connectors