Dual Speaker LU43P User Manual

LU43P-LU53P  
INSTALLATION/OWNER’S MANUAL  
Indoor/Outdoor 3-Way Dynamic Loudspeakers  
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LU43P-LU53P PLACEMENT  
Speaker Placement  
If mounting is desired, mounting both speakers on a  
common solid surface facing the listening area will provide  
the best audio results.  
Mounting Placement  
Do NOT mount speakers on wall surfaces that have hazards  
concealed behind them, such as electrical wires or  
plumbing. Always mount speaker on surfaces that are  
sturdy enough to support the speakers’ weight, and make  
sure they cannot fall or cause injury.  
Your speakers can be placed in many convenient locations  
in your home or patio area - as stereo pairs on either side  
of your receiver - as surround speakers in home theater  
surround sound systems - in your computer room to  
enhance the multimedia experience - or as remote  
speakers.  
Speaker Placement  
For wall and ceiling applications, DUAL mounting brackets  
are included. In addition, the LU43 has a rear inset keyhole  
for surface hanging, and the larger LU53 has two 1/4-20  
brass inserts incorporated into the rear of the enclosure if  
aftermarket mounting systems will be used.  
Wall and Ceiling  
Placement  
You should experiment with various placements. Room  
acoustics can produce large apparent differences in the  
sound when small changes in the placement are employed.  
For example, although the speaker may be located at any  
height above the floor, directing the tweeter toward ear level  
(32" – 36") or angling the entire speaker toward the listening  
position often provides the most realistic imaging  
experience. The amount of bass perceived increases as you  
move a speaker closer to solid intersecting room surfaces  
(walls, ceiling, floor).  
Experiment for Better  
Sound  
(6’10”)  
Recommended minimum distance  
between speakers  
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LU43P-LU53P INSTALLATION  
Placement & Mounting Speakers  
The DUAL LU43 and LU53 have been tested for  
environmental usage and are weather resistant, but not  
waterproof. Occasional moisture will not affect performance.  
The speakers should be allowed to ventilate and dry after  
water exposure.  
Outdoor Placement  
The speakers can be placed permanently outdoors for year-  
round enjoyment. To maximize speaker life, position in areas  
protected from the elements, such as the underside of eaves  
and overhangs. Popular locations include decks, gazebos,  
porches, atriums, garages, and covered spa areas.  
For temporary placement, remove the speaker from the  
mounting brackets and replace the thumb screws to maintain  
stability if placing the speakers on end.  
Both the LU43 and LU53 speakers have a DUAL logo that can  
be rotated. The logo is located on the face of the grille in the  
event a vertical installation is needed. The logo is spring  
loaded. Use gentle force when adjusting the logo to a new  
orientation. To rotate the logo, elevate two ends of the logo  
equally by placing your nail under and lifting lightly. While  
the logo is elevated, turn the logo to the desired orientation  
and release.  
Mounting  
Your Speakers  
For ease of installation, the DUAL LU43 and LU53 include an  
easily removable mounting bracket. Once mounted, the  
bracket allows the speaker to be pivoted to its ideal location.  
The included thumb screws knobs will hold the selected  
speaker position when properly tightened. Avoid over  
tightening the knob. Before attempting the installation,  
carefully evaluate the mounting surface, making sure that its  
composition and construction are strong enough to support  
the load safely. If you are unsure about the type of mounting  
hardware for your installation, consult a professional  
contractor or a knowledgeable hardware store. The anchors  
and screws to attach the speakers are not included and must  
be purchased separately. The hardened steel brackets are  
suitable only for attaching the speaker to walls or ceilings  
constructed of solid wood, brickwork, concrete, hollow  
buildings block or wood studs.  
Do not mount the bracket to non-reinforced plaster sheetrock  
(gypsum board). Once the bracket is secure, reattach the  
speaker using the thumb screws included.  
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LU43P-LU53P CONNECTION  
Connecting Speakers  
Connecting Speaker Wire -Typical speaker wire has a pair of separate  
Your Speakers speaker wires with insulating jackets that are molded  
together. Dual recommends the use of two conductor 18-  
gauge speaker wire to connect your speakers to your  
receiver. Measure enough wire to reach from your receiver  
to each speaker plus additional length to allow moving the  
speakers or receiver without having to disconnect the wires.  
When connecting the speakers in a stereo configuration, the  
wire length should be similar. One length should not be  
dramatically longer or shorter then the other. Maintaining  
similar wire lengths will provide superior sound quality.  
LU53P  
Polarity - Speaker wires are marked for polarity consistency  
so that you can determine the positive and negative identity  
of the individual wires within the molded pair insulation.  
Polarity is shown by either a color stripe on the insulation,  
by ridges molded into one side of the insulation, the color of  
the insulation case around the wire, or by the colortype or  
colors of the wires/wire itself (copper or silver).  
Important - Always connect speaker wire using the positive  
(+) terminal on the receiver to the positive (+) terminal, and  
the negative (-) terminal on the receiver to the negative (-)  
terminal. All speakers in a system must be connected with  
the same respective polarity. The speaker inputs are  
located on the rear-mounted terminal cup on the back of the  
speaker.  
Terminal Type - The LU43 utilizes a push-pin design. Gently  
depress the colored lever and insert the stiped end of the  
wire directly into the opening located in the center of the  
input housing. - The LU53 uses a screw type input post. To  
loosen, turn the gold terminal counter clockwise, insert the  
wire end and re-tighten. The gold terminal have Red (POS)  
and Black (NEG) polarity indicators.  
LU43P  
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LU43P-LU53P CONNECTION & TROUBLESHOOTING  
Connecting Speakers  
Your Speakers  
The speaker wire must be securely connected and tightened  
properly to the speaker inputs. Do not over-tighten. Do not  
allow the positive and negative speaker wire from the  
receiver to make contact, as this will cause a short.  
Banana style connectors may also be used on the LU53. The  
connection is made by connecting the speaker wire to the  
banana plugs, and then inserting the banana plug into the  
top portion of the binding posts.  
It is recommended that the wire insulation be stripped back  
approximately 3/8”, allowing the wire conductor to make a  
proper connection. Make sure that the wire insulation is  
stripped back far enough so that the bare speaker wire will  
make a proper connection to the metal clip inside the  
terminal and be securely held in place. This can be  
confirmed visually.  
Troubleshooting  
Distortion/Knocking  
If you hear obvious distortion from the speakers, immediately  
lower the volume level of your receiver. Those sounds often  
indicate that either the receiver or the speaker is being  
overdriven, and damage can result in playing your source  
material (music-CDs-DVD-MP3) at high volume levels for  
prolonged periods of time. You should also avoid turning the  
bass or treble controls fully up and using your "Loudness  
button" when the volume level is at or above normal listening  
levels. Note: The Loudness button on most receivers is  
designed to add depth when your system is being used for  
background music or at very low volume.  
Distorted or unnatural sound can indicate poor connections,  
defective electronics, damaged source material or speaker  
failure. If only one of your speakers has poor sound quality,  
check the speaker wire and audio connections. If that doesn’t  
fix the problem, try putting each speaker in place of one  
another (swapping). If the sound remains poor on the suspect  
speaker after swapping location and the distortion moves with  
the speaker to the new location, the speaker may be the  
problem. If the distortion remains in the original location then  
the problem is eleswhere in your audio/video system.  
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LU43P-LU53P SPECIFICATIONS  
Specifications  
Specifications Model LU43P  
Frequency Response 100 Hz-20kHz  
Woofer 4" (100mm) Polyelite PVA Surround  
Midrange 40mm polypropylene  
Tweeter 20mm Piezo Dome  
Sensitivity 85.5 dB (2.83v @ 1 meter)  
Nominal Impedance 4-6 ohms  
Power Handling* 50 watts RMS - 100 watts (IPP)  
Dimensions (Inches H x W x D) 8.25 x 5.25 x 5.25  
Weight 2.8 lbs.  
Finish Black or White  
Model LU53P  
Frequency Response 70 Hz-20kHz  
Woofer 5 1/4" (130mm) Rubber Surround  
Midrange 25mm polypropylene  
Tweeter 20mm Piezo Dome  
Sensitivity 87dB (2.83v @ 1 meter)  
Nominal Impedance 6-8 ohms  
Power Handling* 60 watts RMS - 125 watts (IPP)  
Dimensions (Inches H x W x D) 10.13 x 7.25 x 7.25  
Weight 4.4 lbs.  
Finish Black or White  
* Power handling is based on amplifier volume never being  
set above the point of audible distortion.  
All Rights Reserved. All specifications subject to change without notice.  
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Limited One-Year Warranty  
This warranty gives you specific legal rights. You may  
also have other rights which vary from state to state.  
What to do?  
If purchased within the USA:  
1. Before you call for service, check your  
operating instruction booklet. A slight adjustment  
of any custom controls discussed in your  
instruction booklet may save you a service call.  
Dual Electronics Corp. warrants this product to the  
original purchaser to be free from defects in material  
and workmanship, under normal conditions, for a  
period of one year from the date of the original  
purchase.  
2. If you require service during the warranty  
period, you must carefully pack the product  
(preferably in the original package) and ship it by  
prepaid transportation with proof of the purchase  
date from the retailer to the Return Center  
address listed below.  
Dual Electronics Corp. agrees, at our option, during  
the warranty period, to repair any defect in material  
or workmanship or to furnish an equal new or  
renewed product in exchange without charges,  
subject to verification of the defect or malfunction and  
proof of the date of purchase.  
3. Please describe your problem in writing and  
include your name, a return UPS shipping  
address (P.O. Box not acceptable), and a daytime  
phone number with your shipment.  
During the One-Year Warranty Period: For One Year  
from the date of purchase, your product will be  
replaced with a new, renewed or comparable product  
(whichever is deemed necessary) if it becomes  
defective or inoperative. This is done without charge  
to you. Replacement products are warranted for the  
balance of the original warranty period.  
4. DUAL will pay the return shipping charges if  
the product is returned to an address within the  
48 contiguous states.  
Dual Electronics Corp.  
Attn: Returns Center  
21318 64th Ave. South  
Kent, WA 98032 U.S.A.  
Toll Free: 1-866-626-7863  
Who is covered? This warranty is extended to the  
original retail purchaser for products purchased and  
used in the U.S.A.  
What is covered? This warranty covers all defects in  
material and workmanship in this product. The  
following are not covered: installation/removal costs,  
damage resulting from accident, misuse, abuse,  
neglect, product modification, improper installation,  
incorrect line voltage, unauthorized repair or failure to  
follow instructions supplied with the product, or  
damage occurring during return shipment of the  
product.  
If purchased outside the USA:  
Please return the unit to original place of purchase  
for warranty service.  
Exclusion of Certain Damages: This warranty is  
exclusive and in lieu of any and all other warranties,  
expressed or implied, including without limitation the  
implied warranties of merchantability and fitness for  
a particular purpose and any obligation, liability, right,  
claim or remedy in contract or tort, whether or not  
arising from the company’s negligence, actual or  
imputed. No person or representative is authorized to  
assume for the company any other liability in  
connection with the sale of this product. In no event  
shall the company be liable for indirect, incidental or  
consequential damages.  
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Dual Electronics Corporation  
21318 64th Ave. South • Kent, WA 98032 U.S.A. • Toll Free: 1-866-626-7863  
EVOK0205-V02  
 

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