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Tectonic Elements HIBM85C20-4/DD 4" BMR Full-Range Square Speaker 4 Ohm

Brand:|Model: HIBM85C20-4/DD|Part # 297-2150


For audio applications that require extended frequency response, and superior off-axis response in a small form factor, choose the Tectonic Elements HIBM85C20-4/DD 3-1/2" full-range transducer. Nearly all of the audio in the pass band of the driver is available up to 100° off-axis.
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Highlights
  • Amazing off-axis frequency response
  • Small form factor is great for applications with minimum mounting depth
  • Balanced-Mode operation is enabled by specially placed cone dampers




Product Details

Tectonic Elements HIBM85C20-4/DD 4" BMR Full-Range Square Speaker 4 Ohm

Tectonic Elements HIBM85C20-4/DD Balanced-Mode Radiator (BMR) features extended frequency response and wide dispersion compared to that of a conventional drive unit. It combines the benefits of Tectonic Elements bending-wave technology and pistonic modes of operation. It is ideally suited for compact audio applications that require a full-range, high performance acoustic solution. A rare-earth, neodymium-based motor is combined with special cone dampers to ensure a small size that outperforms conventional drivers, especially in off-axis performance.



Product Specifications
  • Nominal Diameter4"
  • Power Handling (RMS)20 Watts
  • Power Handling (max)40 Watts
  • Impedance4 ohms
  • Frequency Response80 to 20,000 Hz
  • Sensitivity88.7 dB 1W/1m
  • Voice Coil Diameter1.26"
Thiele-Small Parameters
  • Resonant Frequency (Fs)101 Hz
  • DC Resistance (Re)4.3 ohms
  • Voice Coil Inductance (Le)0.1 mH
  • Mechanical Q (Qms)3.34
  • Electromagnetic Q (Qes)0.82
  • Total Q (Qts)0.66
  • Compliance Equivalent Volume (Vas)0.08 ft.³
  • Mechanical Compliance of Suspension (Cms)0.3 mm/N
  • BL Product (BL)4.6 Tm
  • Diaphragm Mass Inc. Airload (Mms)7.6g
  • Maximum Linear Excursion (Xmax)1.5 mm
  • Surface Area of Cone (Sd)66.5 cm²
Materials of Construction
  • Cone MaterialPaper
  • Magnet MaterialNeodymium
Mounting Information
  • Overall Outside Diameter4.41 x 4.41"
  • Baffle Cutout Diameter4.13"
  • Depth1.34"
  • # Mounting Holes4
Tectonic Elements HIBM85C20-4/DD 4" BMR Full-Range Square Speaker 4 Ohm
  • BrandTectonic Elements
  • ModelHIBM85C20-4/DD
  • Part Number297-2150
  • UPC844632098772
  • Product CategoryMidrange / Midbass Drivers & Full-Range Speakers
  • Unit of MeasureEA
  • Weight0.6 lbs.
  • California Prop 65

    Warning: California residents only. Please note per Proposition 65 that this product may contain chemicals known to the State of California to cause cancer and birth defects or other reproductive harm.

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Tectonic Elements HIBM85C20-4/DD 4" BMR Full-Range Square Speaker 4 Ohm

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Tectonic Elements HIBM85C20-4/DD 4" BMR Full-Range Square Speaker 4 Ohm

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