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Panacoustics Ltd Acoustics Consultants, Cyprus, Tel: 25-822816
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  • About
  • Services
    • Online Acoustics Engineering and Consulting Services
  • Projects
    • Performing Spaces
    • Small Events Spaces
    • Commercial & Medical Spaces
    • Residential Spaces
    • Educational Spaces
    • Broadcasting & Recording Studios
    • Cinemas and Home Theatres
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    • Places of Worship
    • Entertainment & Hospitality
    • Environmental Noise Impact Assessment
    • Noise Control
    • Sound Insulation Measurements
    • Specialised Projects
  • Products
    • Sound Level Meters >
      • Cirrus Research
      • Castle Group
      • SVANTEK
      • CESVA Sound Level Meters
      • RION Sound Level Meters
      • BSWA Sound Level Meters
    • Vibration Meters >
      • Cirrus REVO Vibration Meter
      • Castle Vibration Meters
      • Svantek Vibration Meters
      • CESVA Vibrometers
      • RION Vibration Meters
    • Dosimeters >
      • Cirrus Research Noise Dosimeters
      • Svantek Noise Dosimeters
      • Cesva Noise Dosimeters
      • soundBadge
    • Noise Monitoring >
      • Sonitus Systems Noise Monitoring Solutions
      • CIRRUS Environmental Noise Kits for the Optimus Sound Level Meters
      • SVANTEK Noise and Vibration Monitoring Systems
      • CESVA TA120 Noise measuring sensor for Smart Solutions
      • SCS 9077 Noise Monitoring Station
      • RION NA 37 Environmental Sound Monitor(
    • Sound Sources & Tapping Machines >
      • Infra-QSources Noise Sources
      • CESVA Sound Sources & Tapping Machines
      • Ntek Building Acoustic Equipment
      • BSWA Sound Sources
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      • SoundEar Noise Alert Systems
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Lange B12 - Low Frequency Noise Source

Lange B12 - Low Frequency Noise Source

LOW FREQUENCY EXTENSION FOR D12 AND D12A

Introduced in February 2017 the B12 is a specific subwoofer designed to extend the frequency response of dodecahedrons in Architectural and Building Acoustic context. Dodecahedrons are in fact unable to generate significant low frequency output below approximately 150 Hz, thus the B12 specific design is an optimal complement for the investigation of frequencies that range from 20Hz up to 150Hz.

The B12 consist of two separate sealed volumes, both including a high excursion 315 mm, 600W / 4 Ohm low frequency driver. Due to design and principle the system does not generate unwanted noises imposed by, for example, reflex venting turbulences. Both drivers have a removable polyurethane protection foam that can easily be removed during operation avoiding eventual noise to be heard or measured. The particular configuration allows the system to not move nor shake while operating, the unit remains still also while operating at full power.

This device is DSP controlled and is proposed with 4 factory presets that enable different frequency response filtering. Through a USB port it is possible to edit two custom settlings that are tailored to the specific needs of architects or acoustic engineers. Settlings can be saved as "Preset 3" and "Preset 4" via USB cable. Preset recall is performed on the input panel of the B12 and a green LED indicates which of the four selectable presets is in use.
​

Signal input can manage Parametric, hi/lo shelving, band pass, band stop, all pass filters; Signal EQ can manage Custom FIR, parametric IIR: peaking, hi/lo-shelving, all-pass, band-pass, band-stop, hi/lo-pass filters. Filter type can be selected and settled among Butterworth, Linkwitz-Riley, Bessel or arbitrary asymmetric nature: 6 dB/oct to 48 dB/oct (IIR), linear phase (FIR), hybrid (FIR-IIR). Furthermore up to 340 ms output delay can be imposed to signal routing as well as Peak limiter, RMS limiter and frequency dependent RMS limiter.

Applications

  • Applications requiring a spherical sound field
  • Architectural and Building Acoustics
  • Airborne Sound Insulation
  • Reverberation Time
  • Impact Sound Level

Features

  • 122dB Lw  from less than 5 Kg!
  • 500 Watts RMS power
  • Sound Power Level 122dB re 1pW
  • Complies with ISO140/3 - ISO717 - ISO 3382 - ISO 16283
  • Satisfies EN60068-1-2
  • Easily transportable due to low weight/mass
  • Ultra compact, 335mm diameter, upper-vertex configuration
Picture
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Services

Architectural Acoustics
Building Acoustics
Room Acoustics
Noise Control
Environmental Acoustics
Electroacoustics
Sound Insulation Measurements
Noise Monitoring
Impact Noise Assessments
​Online Consultancy Services

Products

Sound Level Meters
Vibration Meters/Analyzers
Dosimeters - Noise At Work
Noise Monitoring Systems
Sound Sources - Building Acoustics
Noise Alert Systems
Multi Channel Systems
Sound Limiters
Calibrators
Microphones & Accelerometers
Material Testing
Sound Masking Systems
Audiology  Booths & Instruments 
Industrial Enclosures
Acoustic Panels
Ready-Made Studios
Software

Contact

P.O. Box 51443
Limassol 3505
Cyprus
T: +357 25 822816
F: +357 25 822817
​E: info@panacoustics.com
​

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