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SW218A

Dual 18” (460mm), Very High Output, Manifolded Transmission Line, Powered, CORE Processed, Subwoofer System

 
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  • The SW218A subwoofer is designed to deliver high quality low frequency reproduction where very high output is a key requirement, together with well defined deep bass response and fast transient response. Its compact size and light weight make it suitable for several different uses, ranging from touring applications to fixed installations and high-level dance clubs.

    THE SW218A SUBWOOFER SYSTEM
    The SW218A is a very high quality powered subwoofer system featuring some of the most advanced technologies for low frequency reproduction. Its unique and innovative design is based on a configuration that can be defined as Manifolded Transmission Line. It uses manifolding of the front side of the cones to maximize the mutual coupling between the two drivers, while loading the back of the cone with a large-size transmission line that has the function to create a transmission path from the back of the transducers to the front. This innovative configuration does not use any large resonant cavity to load the speaker in order to get the lower octave and this reduces significantly pressure decay time inside the enclosure, with large advantages in terms of definition both at the lowest end and the upper bass. At the same time, it doesn’t use very long transmission line paths as well. Its working principle is an hybrid combination between a short transmission line and an overdamped reflex load. Moreover, the maximization of the mutual coupling between the drivers increase the fastness of the transient response while maximizing the overall energy efficiency as well.

    TRANSDUCERS
    The SW218A subwoofer system is equipped with two high power 18” (460mm) transducers capable of long excursion (up to 30mm peak-to-peak), controlled by high stiffness Double Silicon Spider as centering suspension and by heavy duty surround. The motor structure features high strength (BL²/Re) with optimized symmetry and excursion controlled by Inner Flux Demodulating Ring. The robust copper 100mm (4”) voice coil is wounded in two different layers both outside and inside the coil support, then doubling the coil surface exposed to air cooling and consequently improving the long term thermal capacity of the loudspeaker. Cones are made of very high-stiffness glass fiber reinforced paper, featuring also invisible water repellent treatment.

    PERFORMANCES
    The EDGE SW218A represents an innovative subwoofer design that features unprecedented performances in terms of low frequency definition and “punchy” feeling in the upper bass range. The combination of accuracy in acoustic transient response together with the use of latest technology in transducers linearity, signal processing and power amplifiers allows the EDGESW 218A to deliver unprecedented low frequency reproduction quality with solid deep end, together with very fast and accurate bass response.

    SIGNAL PROCESSING
    The system processing is based on the CORE DSP platform, which has been designed by the PROEL R&D Laboratories using one of the most advanced SHARC DSP for audio application. It features 40bit, 96kHz floating point resolution and high quality 24bit AD/DA converters, for a perfect signal integrity, a dynamic range in excess of 110dB and a superior sonic performance. Thanks to its massive processing power, the CORE platform is capable of providing the most sophisticated algorithms for speaker processing, together with remote control and networking capability. The PRONET 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, increasing the protections and monitoring the status of the amplifier.

    POWER AMPLIFIERS
    The SW218A is powered by DA SERIES digital power modules, a new generation of CLASS D power amplifier with digitally-controlled SMPS. The innovative technology used for these amplifiers (including also the use of a variable switching frequency) offers performances at the top of the range, such as a superior sound definition at any audio frequency, very high dynamics also for low level signals and very low distortion even at the maximum power The superior sound quality can be compared with top-of-the-range AB-class analog systems, while the DA modules feature a higher dynamics, very compact size and light weight and efficiency above 90%. The two DA modules semployed for powering the SW218A deliver in an ultra-compact package a maximum power of 4000W.

    • Very High Output Compact size for a very good output-toweight ratio
    • Manifolded Transmission Line configuration for very fast transient response
    • High-strength, water repellent, carbon fiber reinforced cones
    • Long-excursion split coil for extended linear response
    • 96KHz / 40 bit floating point CORE processing with PRONET remote control
    • Digitally controlled Class D amplifier module with SMPS 


    SYSTEM
    System’s Acoustic Principle: Manifolded Transmission Line
    Frequency Response: (±3dB): 30 Hz – 92 Hz (Processed)
    Maximum Peak SPL @ 1m: 141 dB
    TRANSDUCERS
    Type: Two 18” (460mm), 4” (100mm) VC
    Cone: High stiffness, water repellent, glass fiber reinforced diaphragm
    Voice Coil Type:Flux Demodulating Ring
    Suspension:Double Centering Spider
    ELECTRICAL
    Input Impedance: 20 kohm balanced, 10 kohm unbalanced
    Input Sensitivity: +4dBu / 1.25 V
    Signal Processing: CORE processing, 96kHz / 40bit floating point SHARC DSP, 24 bit AD/DA converters
    Direct access Controls: 4 Presets (Standard/InfraSub/Cardioid/ User), Network Termination, GND Link
    Remote Controls: PRONET control software
    Network protocol: CANBUS
    Amplifier Type: Class D with SMPS, Variable Switching Frequency
    Output Power: 2000W + 2000W
    Mains Voltage Range (Vac): 230V ±15% - 115 ±15% 50/60Hz (internally selectable)
    IN / OUT Connectors: Neutrik XLR-M / XLR-F
    IN / OUT Network Connectors: ETHERCON®(NE8FAV)
    Mains Connector: PowerCon® (NAC3MPA)
    Cooling: Variable speed DC fan
    ENCLOSURE & CONSTRUCTION
    Physical Dimensions
    Width: 1215 mm (47.87”) Heigth: 590 mm (23.24”) Depth: 950 mm (37.43”)
    Depth Including Wheels: 1050 mm (41.37”)
    Enclosure Material: 15mm, reinforced phenolic birch
    Paint: High resistance, water based paint
    Wheels: 4 heavy-load 100 mm ø
    Net Weight: 101.7 Kg (223.7 lbs.)

    3D Model
    SW218A.1.dwgTechnical drawing 3D
    SW218A.1.3dsTechnical drawing 3D
    Software
    Presets SW218A.zipPresets
    AXIOM_SW218X_v1_0.zipEASE Focus 3 models
    Pronet_Setup_r232.zipPRONET Control Software Release 2.3.2
    EASE_Focus_v3_0_18 AXIOM GLL.zipEASE Focus 3 Software & Models
    Data Sheet
    SW218A_data sheet_2017.pdfTechnical Data Sheet
    Technical Drawing
    SW218A.0.dwgTechnical drawing
    User Manual
    PRONET_manual rel23.pdfPRONET Control Software User's Manual English
    SW218A_UM_ENG.pdfUser's Manual English
    COVEREDSW218 COVEREDSW218 Padded cover for SW218/218X
    USB2CAND USB2CAND USB to CAN converter with two network connectors