General Information
Specifications
System Frequency Response
Sensitivity
89 dB/2.83 volts/meter (mounted in ceiling)
Impedance
Mono: 4 ohms
Stereo: 8 ohms x 8 ohms
Crossover Frequency
2600 Hz
Components
Custom air core coils, polyester capacitors
Binding Posts
Two sets push style binding posts, accommodates wire up to 5AWG
Tweeter Type
Two 0.75” (1.9cm) neodymium soft dome
Woofer Type
6.5” (16.5cm) high rigidity aluminum cone with extended throw drive assembly, thermal protection
Power Handling
Mono: 100 watts
Stereo: 50 watts x 50 watts
Weight
4.5 lbs. each (2 kg)
Overall Size
9.5” inches W × 5.12” inches D (24.2cm W × 13cm D)
Required ceiling opening (including tolerance) 8.35" (21.2cm)
Projection from wall surface 0.37" (1cm)
Depth required behind wall surface 5" (12.7cm)
Warranty and Registration
Your Helos 20 speaker is 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, included with your speakers, and provide a copy of your dealer receipt 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 on file!
If you did not receive a Certificate of Registration with your new Helos 20 speaker, you cannot be assured of having received new units. If this is the case, please contact your authorized MartinLogan dealer.
Serial Number
The Helos 20's serial number is located on the back of the speaker and also on the product's shipping carton.
Service
Should you be using your MartinLogan product in a country other than the one in which it was originally purchased, we ask that you note the following:
1The 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.
2Should 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 per- formed 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.
3If, after owning your speakers for six months, you relocate to a country other than the one in which you purchased your speakers, your warranty may be transferable. Contact MartinLogan for details.
