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4 Ω

5" 100 WT MIDRANGE

A  5-inch sealed-back mid-range transducer for the mid-band section of two-way and three-way loudspeaker systems, column and pillar speakers, public-address cabinets, home-theatre satellites and multimedia enclosures. The closed basket encloses the motor in its own sealed chamber, so the driver is acoustically self-contained: no internal sub-enclosure is needed, and it is unaffected by the pressure of a woofer sharing the same cabinet. Cabinet construction is simpler and mid-band performance is repeatable from build to build.

The larger 130 mm frame carries an effective radiating area of approximately 80 cm² — some 45 % greater than a 104 mm unit — so the same acoustic output is produced at appreciably lower cone velocity. The measured on-axis response is notably even above 1 kHz, holding within ±3 dB all the way to 10 kHz, with only modest break-up modes at 5.2 kHz and 9.7 kHz. This allows the driver to be handed over to a tweeter as high as 8–10 kHz. The sealed chamber places the system resonance at 610 Hz, below which output falls at approximately 18 dB/octave, giving inherent protection against low-frequency programme content.

Key Features

  • Program Power : 50 W
  • Nominal Impedance : 4 Ω
  • Rated Power : 100 W PMPO
  • Frequency Range : 340 Hz – 15.5 kHz
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  • Nominal Diameter 130 mm (5 in)
  • Construction Sealed-back (closed basket)
  • Nominal Power Handling(AES) 25 WT AES
  • Nominal Impedence 4 Ω
  • DC Resistance (Re) 3.9 Ω
  • Rated Power 100 W PMPO
  • Recommended Amplifier Power 10 – 25 W per channel into 4 Ω
  • Frequency Range 340 Hz – 15.5 kHz
  • Effective Frequency Range 414 Hz – 12.9 kHz
  • Response Uniformity ±3 dB, 1 kHz – 10 kHz
  • System Resonance 610 Hz
  • Recommended Crossover 1.5 kHz high-pass, 12 dB/octave (see page 3)
  • Linear Excursion (Xmax) ±1.18 mm
  • Voice Coil Winding Height 3.85 mm
  • Top Plate (Gap) Height 3.00 mm
  • Effective Radiating Area (Sd) approx. 80 cm²
  • Baffle Cut-out 110.5 mm
  • Mounting Depth 48.5 mm
  • Gross Weight 0.41 kg
  • Overall Diameter 130 mm
  • Baffle Cutout Diameter 110.5 mm
  • Flange and Gasket Thickness 7.5 mm
  • Depth 48.5 mm
  • Overall height (incl. flange) 56.0 mm
  • Flange seating width, per side 9.75 mm

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