Helos™ 12 Helos™ 22
user’s manual
Lawrence, Kansas, USA tel 785.749.0133 fax 785.749.5320 www.martinlogan.com
P.N. 9500089
®
Rev. #112612©2012 MartinLogan Ltd. All rights reserved.
FREQUENTLY ASKED QUESTIONS
How do I clean my speakers? Just use a dust free
cloth or a soft brush to remove the dust from your
speakers. Do not spray any kind of cleaning agent
on or in close proximity to the drivers.
What size amplifier should I use? We recommend an amplifier rated within the suitable
amplifier range of your speaker.
Could you suggest a list of suitable electronics
and cables that would be ideal for MartinLogan
speakers? The area of electronics and cable
choice is probably the most common type of
question that we receive. It is also the most
subjective. We have repeatedly found that brands
that work well in one setup will drive someone else
nuts in another. We use many brands with great
success. Again, we have no favorites; we use
electronics and cables quite interchangeably. We
would suggest listening to a number of brands—
and above all else—trust your ears. Dealers are
always the best source for information when
purchasing additional audio equipment or cables
and will be well versed in the subject of special
safety requirements for in-wall cable.
Will exposure to sunlight affect the life or
performance of my speakers? We recommend
that you not place any loudspeaker in direct
sunlight. The ultraviolet (UV) rays from the sun can
cause deterioration of grill cloth, speaker cones, etc.
Small exposures to UV will not cause a problem. In
general, the filtering of UV rays through glass will
greatly reduce the negative effects.
TROUBLESHOOTING
No Output
• Check that all your system components are
turned on, not muted, and that your balance
control (if applicable) is set correctly.
• Check to make sure your power outlet at the
wall is working.
• Check your power cords, speaker wires, and
interconnecting cables.
• Check to make sure no headphones are
plugged in.
• Swap speaker wires at your amplifier with
those of a speaker that is functioning correct-
CONTACTING CUSTOMER SERVICE
MartinLogan customer service is available
Monday–Friday between the hours of 8am–5pm
(central time) by calling (785) 749-0133 or by
emailing service@martinlogan.com.
ly. If the lack of output moves to a different
speaker the problem could be with other
equipment in your system (i.e. amp, pre-amp,
processor, etc.)
• Try hooking up a different set of speakers.
The lack of output could point to a problem
with other equipment in your system (i.e.
amp, pre-amp, processor, etc.)
Lack of Bass or Poor Imaging
• Check your speaker wires. Is the polarity correct — (+) to (+) and (–) to (–).
10
GENERAL INFORMATION
WARRANTY INFORMATION
Your speakers are provided with an automatic
Limited 90 Day Warranty coverage. You have
the option, at no additional charge, to receive a
Limited 5 Year Warranty coverage. To obtain the
Limited 5 Year Warranty coverage you need to
complete and return the Certificate of Registration
to MartinLogan within 30 days of purchase. For
your convenience MartinLogan also offers online
warranty registration at www.martinlogan.com.
MartinLogan may not honor warranty service
claims unless we have a completed Warranty
Registration card on file! If you did not receive a
Certificate of Registration with your new speakers
you cannot be assured of having received new
units. If this is the case, please contact your authorized MartinLogan dealer.
SERVICE
Should you use your MartinLogan product in a
country other than the one in which it was originally
purchased, we ask that you note the following:
1 The appointed MartinLogan distributor for any
given country is responsible for warranty servicing
only on units distributed by or through it in that country in accordance with its applicable warranty.
2 Should a MartinLogan product require servicing in a country other than the one in which
it was originally purchased, the end user may
seek to have repairs performed by the nearest
MartinLogan distributor, subject to that distributor’s local servicing policies, but all cost of repairs
(parts, labor, transportation) must be borne by the
owner of the MartinLogan product.
SERIAL NUMBER
Serial number is located on back of the speaker,.
The serial number may also be found on the product carton.
3 If, after owning your speaker for six months, you
relocate to a country other than the one in which
you purchased your speaker, your warranty may be
transferable. Contact MartinLogan for details.
11
SPECIFICATIONS*
*Specifications are subject to change without notice.
Speaker Model.............
System Frequency Response . .
Sensitivity................
Impedance ...............
Crossover Frequency........
High-Frequency Driver .......
Low-Frequency Driver........
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 aluminum cone with extended throw
drive assembly, thermal protection.
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 perchannel. 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 aluminum cone with extended throw
drive assembly, thermal protection.
Binding Post Inputs..........
Components...............
Suitable Amplifier Range .....
Maximum Power Handling . . .
Weight..................
Overall Size (diameter x depth) .
Required opening (with tolerance)
Projection from wall surface . . .
..
Push style binding posts, accommodates 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)
Push style binding posts, accommodates 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)
Depth behind wall surface ....
12
4.4” (11.2cm)
4.9 po (12.3 cm)
Loading...