Helos 10


Launched in 2008

Price when discontinued: $299 each

Paintable White Perf Metal

Helos 10

High-Performance In-Ceiling For Small and Mid-Sized Rooms

Helos 10 is suitable for any application in average to small rooms. Ideal for use in a multi-channel home theater as a surround speaker, in a kitchen as 2-channel stereo speaker, or in a hallway as a single-channel distributed audio speaker. The Helos 10 delivers legendary MartinLogan quality and performance in a compact, high-resolution in-ceiling loudspeaker. Featuring a 1-inch neodymium soft dome tweeter mounted in an aimable stem, high-rigidity aluminum cone woofer, and proprietary Vojtko crossover topology, Helos 10 effortlessly provides extreme sonic accuracy.

Frequency Response

47–20,000 Hz ±3dB

High Frequency Transducer

1" (2.5 cm) neodymium soft-dome tweeter


Pivoting Tweeter Stem

Low Frequency Transducer

6.5" (16.5 cm) cast basket, high rigidity aluminum cones with extended throw drive assembly, thermal protection


89 dB/2.83 volts/meter


4 Ohms. Compatible with 4, 6, or 8 Ohm rated amplifiers.

Recommended Amplifier Power

20‒200 watts per channel

Crossover Frequency

2800 Hz


Air core coils, polyester capacitors


Binding posts


4.5 lbs. (2 kg)

Required Wall Opening (includes tolerance)

8.35" × 8.35"
(21.2cm × 21.2cm)

Projection From Wall Surface

0.4" (1cm)

Depth Behind Wall Surface

4.5" (11.4cm)

Specifications are subject to change without notice.

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