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Atlas Sound Atlas Sound UHT70C-U51-8 UL Listed 8" Loudspeaker for Fire Protective Signaling

Atlas Sound Atlas Sound UHT70C-U51-8 UL Listed 8
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Atlas Sound Atlas Sound UHT70C-U51-8 UL Listed 8


Atlas Sound's UHT70C-U51-8 are 8" diameter single voice coil loudspeakers equipped with dual (whizzer) cone and 10 oz. ceramic magnet to deliver extended frequency response with high intelligibility and minimal distortion. Cost-effective units are complete with fire-retardant moisture-proof cones, factory-mounted 70.7V transformer, 6" color-coded leads, DC blocking capacitor and a 51-8 baffle.

To comply with UL requirements, loudspeaker packages must be used with UL-approved enclosures.


  • Attractive ceiling-loudspeaker/baffle assemblies provide unobtrusive appearance of life safety and emergency signaling loudspeakers
  • Listed under UL Standard 1480 (speakers for fire-protective signaling systems)
  • Selection of baffle styles and multi-tapped transformers meet a variety of aesthetic and application requirements
  • Selection of UL approved, companion enclosures is offered
  • UL listed, fire-retardant and moisture-proof cone loudspeakers reproduce emergency alarm and voice instructions with superior intelligibility and extended frequency response
  • Specifications
  • Depth: 2 7/8"
  • Diameter: 8"
  • Shipping Weight: 4.67 lbs
  • Frequency Response: 85Hz - 8kHz
  • Power Taps: .5, 1, 2, & 5 watts
  • Power Rating: 10 Watts
  • Sensitivity: 97dB peak, 94dB average
  • UL Listed/Standard: 1480
    • Also known as

      • Atlas Sound - UHT70CU518 - Spk Pkg 8 T7/5w Ul Rn Cap

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