Related Manuals for MartinLogan 20
Summary of Contents for MartinLogan 20
- Page 1 e l o s ™ u s e r ’ s m a n u a l a r t i n o g a n ® the loudspeaker technology company...
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Page 2: Table Of Contents
The materials in your new Helos 20 speaker are of the highest quality and will provide years of enduring enjoy- ment and deepening respect. -
Page 3: Placement
Figure 7 . Wide dispersion. Mono mode reproduct- ing the left and right side surround channels. laCement — Place the Helos 20 at least 12" (30cm) from any wall. — When used as a front channel, place it between 7 to 10 feet (214 to 315cm) from the primary listen- ing position. -
Page 4: Installation
NOTE: The following instructions assume the mounting surface is of standard wood frame and standard sheet rock construction. If you wish to mount the Helos 20 to another type of material, you should consult a bonded contractor. Warning! Before installing check local building codes to verify com- pliance with local regulations. - Page 5 Figure 10 . Installation steps 1–3. Using a stud finder, locate the final speaker position between ceiling joists. WARNING! Absolutely no part of the template should overlap a joist. Insert a push pin in the template center. Mark cutout through slots in template. Remove Template. Figure 11 .
- Page 6 Figure 12 . Connecting the Helos 20 for stereo use. Figure 13 . Connecting the Helos 20 bridged for mono use. Take care to assign the same color to the (+) terminal on the speaker and the amplifier. Stereo: Connect two sets of speaker cables from the left and right channels of your amplifier (figure 12).
- Page 7 Figure 15 . Installation step 8. Gently pivot the tweeter stem to point towards the pri- mary listening position. To rotate the speaker, rotate the entire speaker assembly. DO NOT rotate the tweeter stem. Figure 16 . Installation step 9. Gently press the grill cover into place.
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Page 8: Painting And Customizing
Painting the Speaker Frame Figure 17 . Painting the speaker frame. NOTE: The Helos 20 can be either painted in place or removed from the ceiling for painting. IMPORTANT! Do not paint the rear of the speaker or the surface behind the grill. -
Page 9: Frequently Asked Questions And Troubleshooting
Just use a dust free cloth or a soft brush to remove the dust from your speakers. We recommend a specialty cloth (available at the Xtatic shop at www.martinlogan. com) that cleans your speakers better than anything else we have tried. Do not spray any kind of clean- ing agent on or in close proximity to the drivers . -
Page 10: General Information
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... -
Page 11: Glossary Of Audio Terms
AC . Abbreviation for alternating current. Active crossover . Uses active devices (transistors, ICs, tubes) and some form of power supply to operate. Amplitude . The extreme range of a signal. Usually mea- sured from the average to the extreme. Arc . - Page 12 Drive units in two-way systems are not true woofers but are more accurately described as being mid/bass drivers. ® a r t i n o g a n the loudspeaker technology company tel 785.749.0133 fax 785.749.5320 ©2008 MartinLogan. All rights reserved. www.martinlogan.com Rev. #060408...