6 Inch (156 mm), 8 Ohm Waterproof Speaker with Transformer

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Built to Order
The N9870-WP 6” voice and paging speaker is a high durability transit speaker with an acrylic-treated cloth cone and dust cap. A unique terminal board with 0.250" spade terminals allows for secure and easy connection to the transformer. Primary taps set at 4 watts, 2 watts, and 1 watt allow for a variety of power configurations depending on the output required. Idea. for mounting in rail car or bus ceilings or on transit platforms.
  • Voice and paging speaker
  • 6" (156 mm) steel basket diameter
  • 12 watts, 8 ohms, 92 dB SPL
  • 70 watt transformer, 7-pronged terminal board
  • Waterproof treated cone


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More Information
Brand Name MISCO OEM
Speaker Type Voice
Shape of Speaker Other
Size, Nominal (inch & mm) 6" (152 mm)
Environment Outdoor / Indoor
Application Indoor, Outdoor , Transit, Voice Communications
Rated Impedance (Ω) 8
Rated Power IEC268-5 (W) 12 Watts
Program Power (W) 24
Sensitivity (dB SPL) ¹ 92
Frequency Range (Hz) 100 - 8,000
Resonant Frequency (Fs) (Hz) +/- 15% 341
Nominal Impedance (Z) (Ω) 8
Total Q Factor (Qts) 1.50
Technical Notes

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