MartinLogan Motion 15 Bookshelf Loudspeaker User’s Manual
- June 13, 2024
- MartinLogan
Table of Contents
MartinLogan Motion 15 Bookshelf Loudspeaker
WARNING!
- Safety Precautions:
- Refer servicing to a qualified technician.
- To prevent fire or shock hazards, do not expose this module to moisture.
- Turn the amplifier off should any abnormal conditions occur.
- Do not drive the speaker beyond its rated power.
- Symbols & Their Meanings:
- Lightning Bolt Flash with Arrowhead Symbol:
- This symbol is intended to alert the user to the presence of potentially “dangerous voltage” within the product’s enclosure. This may be sufficient to constitute a risk of electric shock.
- Exclamation Point within an Equilateral Triangle:
- This symbol is meant to alert the user to the presence of important operating and maintenance (servicing) instructions in the literature accompanying the appliance.
European Union WEEE Directive
In accordance with the European Union WEEE (Waste Electrical and Electronic Equipment) directive effective August 13, 2005:
This product may contain regulated materials. Upon disposal, these materials require special reuse and recycling processing. Martin Logan has arrangements with distributors in European Union member nations to collect and recycle this product at no cost to the user.
- To find a local distributor:
- Contact the dealer from whom the product was purchased.
- Email info@martinlogan.com.
- Visit the distributor locator at www.martinlogan.com.
Note: Only the product itself falls under the WEEE directive. Packaging and shipping materials should be recycled through normal channels.
Serial Number Reference:
- It’s recommended to record the serial number for easy reference when filling out warranty registration.
- The serial number can be found near the binding posts and on the product carton.
Product Components
Connection
WARNING! Turn your amplifier off before making or breaking any signal connections!
Use the best speaker cables you can. The length and type of speaker cable used in your system will have an audible effect. Under no circumstance should a wire of gauge higher (thinner) than #16 be used. In general, the longer the length used, the greater the necessity of a lower gauge, and the lower the gauge, the better the sound, with diminishing returns setting in around #8 to
12.
Connections are done at the signal input section on the rear electronics panel of the Motion 15. Use spade connectors for optimum contact and ease of installation. Hand tighten the binding posts, but do not overtighten—do not use a tool to tighten the binding posts.
Be consistent when connecting the speaker cables to the signal input terminals. Take care to assign the same color cable lead to the (+) terminal on both the left and right channel speakers. If the bass is nonexistent and you cannot discern a tight, coherent image, you may need to reverse the (+) and (–) leads on one speaker to bring the system into proper polarity.
INSTALLATION
WARNING! Installation other than that described in the body of this document requires specific documentation from MartinLogan.
BREAK IN
Allow approximately 72 hours of break-in at 90 dB (moderate levels) before any critical listening.
INSTALLING ON A FLAT SURFACE
If you have a surface that provides a wide, level, and stable platform, the speaker can be placed directly on top. When using the speaker in this configuration, affix the pads to the bottom of the speaker at the rear contact points (fig. 2). Note: This speaker is not magnetically shielded and therefore should not be placed directly beside or atop a CRT television.
- Toe-In: When installed on a surface and used as front channels we recommend aiming your speakers towards the primary listening position.
STAND AND WALL MOUNTING
A 3/8-16 threaded insert is located on the back of the Motion 15 to accommodate installations where stand or wall mounting is desired. A variety of after-market stands and brackets are available. Dealers are always the best source of information when purchasing such accessories.
PLEASE NOTE: When using an after-market stand or bracket be sure to follow the mounting instructions included with the stand or bracket.
TROUBLESHOOTING
- No Output
- Check that all system components are turned on and source material is playing.
- Check speaker wires and connections.
- Check all interconnecting cables.
- If you are unable to resolve your problem, please contact your dealer or MartinLogan customer service (see below).
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.
SERIAL NUMBER
The serial number is located on the back of the speaker, directly beneath the binding posts. The serial number may also be found on the product carton.
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:
- 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.
- Should a MartinLogan product require ser-vicing 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 costs of repairs (parts, labor, transportation) must be borne by the owner of the MartinLogan product.
- 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.
CONTACTING CUSTOMER SERVICE
MartinLogan customer service is available Monday–Friday between the hours of 8 am–5 pm (central time) by calling 785-749-0133 or by emailing service@martinlogan.com.
SPECIFICATIONS
- Frequency Response: 60–25,000 Hz ± 3 dB
- Dispersion: 80° x 80°
- Sensitivity: 92 dB @ 2.83 volts/meter
- Impedance: 5 Ohms. Compatible with 4, 6, or 8 Ohm rated amplifiers.
- Crossover Frequency: 2,700 Hz
- High-Frequency Driver: 1” x 1.4” (2.6cm x 3.6cm) Folded Motion Transducer with 5.25” x 1.75” (13.3cm x 4.4cm) diaphragm.
- Low-Frequency Driver: 5.25” (13.3cm) aluminum cone with cast basket. Non-resonant asymmetrical chamber format. Rigidly structured dust cap to reduce cone break-up modes.
- Cabinet: Ported
- Components: Custom air core coil and low DCR steel laminate inductors. Polypropylene film capacitors in series and low DF electrolytic capacitors in parallel. Overall system thermal/current protection.
- Recommended Amp Power: 20–200 watts
- Binding Post Inputs: Custom 5-way binding posts
- Weight: 12 lbs. (5.4 kg)
- Dimensions (HxWxD): 11.4” x 6.8” x 9.5” (29cm x 17.3cm x 24cm)
Specifications are subject to change without notice.
Dimensional Drawings
Lawrence, Kansas, USA
- Tel: 785.749.0133
- Fax: 785.749.5320
- Website: www.martinlogan.com
©2015 MartinLogan Ltd. All rights reserved. Rev. #070915
FAQs
How would you describe the design and finish of the Motion 15?
The Motion 15 features elegant yet understated styling with a flawless high- gloss finish that will blend seamlessly with any décor.
What are the technical aspects of its construction?
It has a precision-built advanced topology Vojtko crossover, a high- performance aluminum cone woofer, and audiophile-grade 5-way bi-wire binding posts for a secure connection.
Can you provide some details about the product dimensions and weight?
The Motion 15 measures 9.5 x 6.8 x 11.4 inches and weighs 12 pounds.
What is the maximum output power of the speakers?
The speakers have a maximum output power of 400 Watts.
How many items are included when purchasing the Motion 15?
One Motion 15 loudspeaker is included.
How does the Motion 15 compare to other speakers in the Motion Series?
The Motion 15 speakers are designed to match the aesthetics of the Motion 20 & 40 floor-standing speakers. They are voice-matched with the entire Motion Series to allow seamless integration when building a system piece-by-piece.
What finishes are available for the Motion 15?
The Motion 15 is available in three high-gloss finishes: Piano Black, White, and Black Cherry wood. The black cherry wood finish has deep cherry undertones and can appear almost black in low light.
What technology inspired the design of the Motion 15 speakers?
The Motion 15 speakers were inspired by MartinLogan's ultra-high-end electrostatic loudspeakers.
How does the Motion 15 handle bass performance?
The Motion 15 speakers combine high-excursion, black aluminum cone woofers with low-turbulence, rear-firing bass ports. This provides an extended and powerful bass performance.
What size is the driver in the Motion 15 speakers?
The Motion 15 speakers feature a single 5.25-inch driver.
How does the Folded Motion tweeter contribute to the speaker's sound quality?
MartinLogan's Folded Motion tweeter offers clear, highly dynamic, and precise sound. This tweeter design delivers reduced distortion and a faster response compared to conventional dome tweeters.
What are the binding posts on the Motion 15 like?
The Motion 15 features premium, five-way binding posts that assure a solid and secure connection.
Can the Motion 15 be used as part of a larger home theater system?
Yes, the Motion 15 is voice-matched with the entire Motion Series, allowing listeners to build a cohesive two-channel or home theater system piece-by- piece.
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