3.3" (83 mm) USB-Powered Voice Range Speaker Enclosed with Amplifier

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Need an easy to install speaker for indoor sound built to last? Want a self-contained unit with volume controls and a USB power option? Then this enclosed speaker/amp combo is the best solution for you. A treated cone and a high-power neodymium magnet within a plastic enclosure make this an environmentally resistant, all-in-one product. That, paired with a built-in mono power amplifier, provides amplified sound right out of the box.

  • Voice Range Speaker
  • 3.3” (83 mm) Diameter
  • 4 Watts, 8 Ohms
  • High Power Neodymium Magnet
  • USB-Powered Mono Power Amplifier
  • Low Distortion

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More Information
Brand Name MISCO OEM
Model # Z9740
Height 1.3600
Width 3.3500
Length 4.2500
Speaker Type Voice
Shape of Speaker Square
Size, Nominal (inch & mm) 3.3" (83 mm)
Environment Outdoor
Application Outdoor , Voice Communications
RoHS Compliant No
Rated impedance (Ω) 8
Rated Power IEC268-5 (W) 8 Watts
Power, Program (W) 8
Sensitivity (dB SPL) ¹ 84
Frequency range (Hz) 350-9000
Resonant Frequency (Fs) (Hz) 341
Total Q factor (Qts) 0.83
Basket type Stamped Steel, Black Power Coat Finish
Terminal size 4.7mm x 0.5mm
Voice coil diameter (mm) 17.8mm
Voice coil wire material High Temperature Copper
Voice coil former material Kapton
Magnet Material Neodymium
Magnet weight (gm) 4
Cone body material Acrylic Treated Cloth
Cone surround material Acrylic Treated Cloth
Dust cap material Mylar (Polyester)
Net weight (kg) 0.168
Technical Notes

1 Sensitivity is measured with 2.83 volt input, measured on-axis at 1 meter distance