MartinLogan Helos 12 High-Performance In-Ceiling Speakers, Black w/ White Grille, (Each)


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  • 1″ (2.5 cm) neodymium soft-dome tweeter
  • 20-200 watts per channel
  • 6.5″ (16.5 cm) cast basket, high rigidity aluminum cones
  • 2800 Hz

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Product Description

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 architectural 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 any application in average to small rooms. Ideal for use in a multi-channel home theater as a front, center, or surround speaker, in a kitchen as 2-channel stereo speaker, or in a hallway as a single-channel distributed audio speaker.

Helos 12 Helos 22
MSRP (US) $349 each $449 each
FREQUENCY RESPONSE 47–20,000 Hz ±3dB 47–20,000 Hz ±3dB
SENSITIVITY 89 dB/2.83 volts/meter 89 dB/2.83 volts/meter
NOMINAL IMPEDANCE 4 Ohms. Compatible with 4, 6 or 8 ohm rated amplifiers. Mono: 4 Ohms. Stereo: 8 Ohms × 8 Ohms. Compatible with 4, 6 or 8 ohm rated amplifiers.
RECOMMENDED AMPLIFIER POWER 20-200 watts per channel 20-200 watts per channel
HIGH FREQUENCY TRANSDUCER 1″ (2.5 cm) neodymium soft-dome tweeter Two 0.75″ (1.9 cm) neodymium soft-dome tweeters
LOW FREQUENCY DRIVER 6.5″ (16.5 cm) cast basket, high rigidity aluminum cones with extended throw drive assembly, thermal protection 6.5″ (16.5 cm) cast basket, high rigidity aluminum cones with extended throw drive assembly, thermal protection
WEIGHT 4.5lbs. (2kg) each 4.5lbs. (2kg) each
OVERALL DIMENSIONS 9.5″ (24.2cm) Diameter

4.62″ (11.7cm) Depth

9.5″ (24.2cm) Diameter

5.12″ (13cm) Depth

CUT-OUT DIMENSIONS 8.35″ (21.2cm) Height

8.35″ (21.2cm) Width

8.35″ (21.2cm) Height

8.35″ (21.2cm) Width

DEPTH REQUIRED BEHIND WALL SURFACE 4.4″ (11.2cm) 4.9″ (12.3cm)
PROJECTION FROM WALL SURFACE .2″ (.45cm) .2″ (.45cm)

Additional information


Speaker Type

MartinLogan Series

continuous (RMS) power handling

101-200 watts



Number of Speakers