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 |
| CROSSOVER FREQUENCY | 2800 Hz | 2600 Hz |
| 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) |
