Martin Logan Helos 12 In-Ceiling Speaker with Pivoting Tweeter – Each


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the Helos 12 delivers legendary MartinLogan quality and performance in a compact, high-resolution in-ceiling loudspeaker. Helos 12 effortlessly provides extreme sonic accuracy from its a 1-inch neodymium soft dome tweeter mounted in an aimable stem, a high-rigidity aluminum cone woofer, and proprietary Vojtko crossover topology.


  • Frequency Response: 47–20,000 Hz ±3dB
  • Sensitivity:    89 dB/2.83 volts/meter
  • Nominal Impedance:    4 Ohms. Compatible with 4, 6 or 8 ohm rated amplifiers.
  • Recommended Amplifier Power:  20-200 watts per channel
  • Crossover Frequency:    2800 Hz
  • High Frequency Transducer:    1″ (2.5 cm) neodymium soft-dome tweeter
  • Low Frequency Driver: 6.5″ (16.5 cm) cast basket, high rigidity aluminum cones with extended throw drive assembly, thermal protection
  • Weight:    4.5lbs. (2kg) each
  • Overall Dimensions:    9.5″ (24.2cm) Diameter 4.62″ (11.7cm) Depth
  • Cut-Out Dimensions: 8.35″ (21.2cm) Height 8.35″ (21.2cm) Width
  • Depth Required Behind Wall Surface:    4.4″ (11.2cm)
  • Projection From Wall Surface: .2″ (.45cm)

Additional information

Weight 12 lbs


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