Martin Logan Helos-12 In-Ceiling Speaker

Designed to Aim at the Listening Position
Helos 12 features a high-resolution neodymium tweeter mounted on a pivoting tweeter stem that easily aims at the primary listening location. This design allows the audience to enjoy the highest levels of in-ceiling audio performance, while still providing rich, detailed sound throughout the entire room.

Installer Friendly
A robust mounting-lock system allows quick, trouble-free installation. When not in use, the constant-control mounting locks are held securely within a self-contained housing. When moved into place during installation, they couple the speaker's chassis firmly to the ceiling. And if the speaker is ever removed, the locks retract and latch themselves back in their housings.

Each Helos 12 speaker comes with a full-size installation template that features quick-reference instructions, and die-cut guides for marking the cutout hole.

Stealthy Grilles
MartinLogan's new Helos speakers feature ultra-low profile, paintable micro perforated grilles with no visible bezel for an near invisible integration into any wall or ceiling. A magnetic system secures grilles easily into place, reducing the risk of warping or damage during installation.

Precision-Built, Advanced-Topology Vojtko™ Crossover
Carefully hand-built using only the finest polyester capacitors and air-core coils, the crossover employ's MartinLogan's proprietary Vojtko topology for vanishingly low distortion and seamless driver integration. This precision-tuned network preserves even the most microscopic sonic nuances while handling the full dynamics of any source.

Multi Application Use
Helos 12 is suitable for use in small rooms. Designed for use as a single stereo speaker in distributed audio or a wide dispersion home theater surround.

Features & specifications

Specifications are subject to change without notice
Frequency Response

47–20,000 Hz ±3dB

Aiming

Pivoting Tweeter Stem

Recommended Amplifier Power

20—200 watts per channel

Sensitivity

89 dB/2.83 volts/meter

Impedance

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

Crossover Frequency

2800 Hz

High Frequency Transducer

1" (2.5 cm) neodymium soft-dome tweeter

Low Frequency Transducer

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

Components

Air core coils, polyester capacitors

Inputs

Binding posts

Weight

4.5 lbs. (2 kg)

Cut-Out Dimensions

8.35" dia.
(21.2 cm dia.)

Projection From Wall Surface

.2" (.45cm)

Depth Behind Wall Surface

4.4" (11.2 cm)