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*Specifications are subject to change without notice.
sPeCiFiCations*
Speaker Model.............
System Frequency Response ..
Sensitivity................
Impedance...............
Crossover Frequency........
High-Frequency Driver .......
Low-Frequency Driver........
Binding Post Inputs..........
Components...............
Suitable Amplifier Range .....
Maximum Power Handling ...
Weight..................
Overall Size (diameter x depth) .
Required opening (with tolerance)
..
Projection from wall surface ...
Depth behind wall surface ....
MARTINLOGAN Helos 12
47–20,000 Hz ± 3 dB
89 dB @ 2.83 volts/ meter
4 Ohms. Compatible with 4, 6,
or 8 Ohm rated amplifiers.
2,800 Hz
1” (2.5cm) neodymium soft
dome
6.5” (16.5cm) high-rigidity alu-
minum cone with extended throw
drive assembly, thermal protection.
Push style binding posts, accom-
modates wire up to 5AWG.
Custom air core coils, polyester caps
20–200 watts
100 watts
4.5 lbs. (2 kg)
9.1” x 4.6” (23.1cm x 11.8cm)
8.35” (21.2cm)
0.2” (4.5mm)
4.4” (11.2cm)
MARTINLOGAN Helos 22
47–20,000 Hz ± 3 dB
89 dB @ 2.83 volts/ meter
Mono: 4 Ohms. Compatible
with 4, 6, or 8 Ohm rated
amplifiers. Stereo: 8 Ohms per-
channel. Compatible with 4, 6,
or 8 Ohm rated amplifiers.
2,600 Hz
Two 0.78” (1.9cm) neodymium
soft dome
6.5” (16.5cm) high-rigidity alu-
minum cone with extended throw
drive assembly, thermal protection.
Push style binding posts, accom-
modates wire up to 5AWG.
Custom air core coils, polyester caps
Mono: 20–200 watts
Stereo: 20–100 watts per channel
Mono: 100 watts
Stereo: 50 watts/channel
4.5 lbs. (2 kg)
9.1” x 5.1” (23.1cm x 12.8cm)
8.35” (21.2cm)
0.2” (4.5mm)
4.9 po (12.3 cm)