MartinLogan Motion 50XT Manuel utilisateur

user’s manual

The lightning bolt flash with arrowhead

symbol, within an equilateral triangle,

is intended to alert the user to the pres-

ence of potentially “dangerous voltage” within the

product’s enclosure that may be sufficient to consti-

tute a risk of electric shock.

In accordance with the European Union

WEEE (Waste Electrical and Electronic

Equipment) directive effective August 13,

2005, we would like to notify you that this product

may contain regulated materials which upon disposal,

according to the WEEE directive, require special

reuse and recycling processing. For this reason Martin

Logan has arranged with our distributors in European

Union member nations to collect and recycle this prod-

uct at no cost to you.

To find your local distributor please contact the

dealer from whom you purchased this product, email

[email protected] or visit the distributor locator at

www.martinlogan.com.

Please note, only this product itself falls under the

WEEE directive. When disposing of packaging and

other related shipping materials we encourage you to

recycle these items through the normal channels.

The exclamation point within an equi-

lateral triangle is intended to alert the

user to the presence of important oper-

ating and maintenance (servicing) instructions in the

literature accompanying the appliance.

WARNING!

• Refer servicing to a qualified

technician.

• To prevent fire or shock hazard,

do not expose this module to moisture.

• Turn amplifier off should any abnormal

conditions occur.

• Do not drive speaker beyond its rated power.

Connection ............................ 4

Jumper Clips .......................4

Single Wire Connection ...............5

Bi-Wire Connection ..................5

Passive Bi-Amplification ................5

Active Bi-Amplification.................5

Installation............................. 6

Break In ..........................6

Installing on a Flat Surface ..............6

Vertical Dispersion ...................6

Frequently Asked Questions............... 7

Troubleshooting ........................ 7

Contacting Customer Service .............7

General Information ..................... 8

Warranty Information .................8

Serial Number......................8

Service ..........................8

Specifications .......................... 9

Dimensional Drawings.................10

Serial Number:_____________________________

Record your serial number here for easy reference.

You will need this information when filling out your

warranty registration. The serial number is located

near the binding posts and on the product carton.

x2x4

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.

A variety of cables are available whose manufactur-

ers claim better performance than standard heavy

gauge wire. We have verified this in many cases,

and the improvements available are often more

noticeable than the differences between wires of dif-

ferent gauge. The effects of cables may be masked

if equipment is not of the highest quality.

Connections are done at the signal input section

on the rear electronics panel of the speaker. 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 bass is

nonexistent and you cannot discern a tight, coher-

ent image, you may need to reverse the (+) and

(–) leads on one speaker to bring the system into

proper polarity.

JUMPER CLIPS

In some countries federal law prohibits

MartinLogan from supplying jumper clips. If none

are found installed under your speakers binding

posts, please refer to ‘Bi-Wire Connection’ for con-

nection instructions.

Fig. 1: Single-wire connection. One channel shown.

Fig. 2: Bi-wire connection. One channel shown.

SINGLE WIRE CONNECTION

Please take note of the jumper clips installed

under the binding posts. These clips attach the

high-frequency and low-frequency sections of the

crossover together. Leaving these in place, con-

nect the (+) wire from your amplifier to either red

(+)binding post and the (–) wire from your ampli-

fier to either black (–) binding post (Fig. 1).

WARNING! Only after jumper

clips are removed may you connect

individual runs of speaker cable

from your amplifiers to the high-fre-

quency and low-frequency signal input binding

posts. Damage will occur to your amplifiers if

the jumper clips are not removed.

BI-WIRE CONNECTION

This connection method replaces the jumper clips

installed under the binding posts with individual runs

of speaker wire from your amplifier. This doubles

the signal carrying conductors from the amplifier to

the speaker, thus direct-coupling each portion of the

crossover to the amplifier.

To bi-wire you must first loosen the binding posts

and remove the jumper clips. Connect one set of

wires to the upper set of binding posts which con-

nect to the high-frequency drivers. Then connect

a second set of wires to the lower binding posts

which connect to the low-frequency drivers. Next,

connect both sets of wires to the appropriate termi-

nals on your amplifier. Please take care to connect

both (+) wires to the (+) amplifier terminals and both

(–) wires to the (–) amplifier terminals. This is known

as a parallel connection (Fig. 2).

PASSIVE BI-AMPLIFICATION

For those that desire ultimate performance, these

speakers may be passively bi-amplified using the

existing internal passive crossover elements.

This method takes the bi-wiring concept one step

further. You will have a dedicated channel of

amplification directly connected to the high- and

low-frequency sections of the crossover. With bi-

amplification, your preamplifier must have dual

outputs. If your preamplifier is not so equipped, you

must either purchase or construct a “Y” adapter.

To vertically bi-amp your speaker you must loosen

the binding posts and remove the jumper clips from

the speaker. Connect the right channel to the lower

binding posts and the left channel to the upper

binding posts. Connect the center preamplifier out-

puts to both inputs of the amplifier (Fig. 3).

ACTIVE BI-AMPLIFICATION

We do not recommend active bi-amplification. The

internal crossover can not be bypassed. This con-

nection method seriously degrades performance.

Fig. 3: Vertical bi-amplification connection.

One channel shown.

BREAK IN

Allow approximately 72 hours of break-in at 90 dB

(moderate listening levels) before 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 rubber pads to the bottom

of the speaker at the rear contact points (fig. 4).

Note: This speaker is not magnetically shielded

and therefore should not be placed directly beside

or atop a CRT television.

VERTICAL DISPERSION

For optimal performance, the Folded Motion

tweeter should be aimed in the direction of your

ears when sitting in your primary listening position.

If your speaker is installed near or slightly below

ear height, orient the speaker so the flat side is on

bottom. When this speaker is installed on a low

surface, orient the speaker so the angled side is on

bottom (see figure 5).

INSTALLATION

WARNING! Installation other

than that described in the body of

this document requires specific

documentation from MartinLogan.

Fig. 4

Fig. 5

How do I clean my speakers?

Use a dust free cloth (such as a micro fiber cloth)

or a soft brush to remove dust from your speakers.

Do not spray any kind of cleaning agent on or in

close proximity to the drivers.

Could you suggest a list of suitable elec-

tronics and cables ideal for MartinLogan

speakers?

We have no favorites and 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.

Is there likely to be any interaction

between my speakers and the televi-

sion in my A/V system?

Yes. These speakers are not shielded and should

be kept at least 2 feet away from a CRT television.

Will exposure to sunlight affect the life

or performance of my speakers?

We recommend against placing any loudspeaker

in direct sunlight. Ultraviolet (UV) rays from the sun

can cause deterioration of cabinet, speaker cones,

etc. Small exposures to UV will not cause a prob-

lem. Filtering of UV rays through glass will greatly

reduce the negative effects.

FREQUENTLY ASKED QUESTIONS

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 cus-

tomer service (see below).

TROUBLESHOOTING

MartinLogan customer service is available

Monday–Friday between the hours of 8am–5pm

(central time) by calling (785) 749-0133 or by

emailing [email protected].

CONTACTING CUSTOMER SERVICE

*Specifications are subject to change without notice.

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 autho-

rized MartinLogan dealer.

SERIAL NUMBER

The serial number is located on back of the speak-

er, 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:

1 The appointed MartinLogan distributor for any

given country is responsible for warranty servicing

only on units distributed by or through it in that coun-

try in accordance with its applicable warranty.

2 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 distribu-

tor’s local servicing policies, but all cost of repairs

(parts, labor, transportation) must be borne by the

owner of the MartinLogan product.

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.

GENERAL INFORMATION

SPECIFICATIONS*

Frequency Response .....................

Dispersion ............................

Sensitivity.............................

Impedance ............................

Crossover Frequency.....................

High Frequency Driver ...................

Low Frequency Drivers ...................

Cabinet ..............................

Components ...........................

Recommended Amplifier Power.............

Binding Post Inputs ......................

Weight...............................

Dimensions (HxWxD) ....................

50–25,000 Hz ± 3 dB

80° x 30°

94 dB @ 2.83 volts/ meter

4 Ohms. Compatible with 4, 6 or 8 Ohm rated

amplifiers.

900 & 2,200 Hz

1.2” x 2.4” (3.2cm x 6.1cm) Folded Motion

Transducer with 4.5” x 2.75” (11.4cm x 7cm)

diaphragm.

Two 6.5” (16.5cm) aluminum cone with cast poly-

mer basket. Non-resonant asymmetrical chamber

format. Rigid structured dust cap to reduce cone

break-up modes.

Ported

Custom air core coil and low DCR steel laminate

inductors. Polypropylene film capacitors in series

and low DF electrolytic capacitors in parallel.

Tweeter thermal/current protection.

20–300 watts

Custom 5-way tool-less binding posts

30.5 lbs. (13.8 kg)

7.6” x 22.8” x 12.8”

(19.2cm x 58cm x 32.6cm)

Lawrence, Kansas, USA tel 785.749.0133 fax 785.749.5320 www.martinlogan.com

DIMENSIONAL DRAWINGS

22.8"

(58cm}

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11"

(28cm)

-r

12.8"

(32.6cm)

(15.3cm)

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MARTIN

LOGAN

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