Dual Speaker DC265 User Manual

DC265 / DC365  
INSTALLATION & OWNERS' MANUAL  
In-Ceiling / In-Wall Loudspeakers  
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DC265 / DC365 COVERAGE & SPEAKER PLACEMENT  
Sound Coverage and Speaker Placement  
Audio Imaging: Ceiling or wall speakers can be used as pairs for stereo or used in  
multiples for 5.1 to 7.1 multi-channel applications. Ideally you should place the stereo  
or front left and right speakers as directionally balanced as possible to the primary  
listening area.  
A common rule is to position the front speakers so that the distance between the  
listening position and the wall is 1.5 times the distance between the two speakers, but  
the speakers can be further apart if you desire a wider sound stage. In a typical audio/  
video multi-channel setup, the listening position is directly facing the video source (TV  
or Monitor) and the center channel is on a direct plane with the listener. If the listener  
is positioned 15 feet away from that video source, then the optimal distance between  
the left and right speakers would be 22.5 feet apart (15'x1.5).  
Listener  
Equidistant Example  
The speaker imaging decreases rapidly the further the listener is from the speakers,  
so an equidistant speaker arangment for multi-channel installation is desired for the  
best results. Try to equalize the speakers distance so the listener is basically in the  
middle of the sound stage.  
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DC265 / DC365 COVERAGE & SPEAKER PLACEMENT  
Sound Coverage and Speaker Placement  
When possible, try to reduce the distance of your speaker from the audio source to achieve  
the best audio results. The optimum wire run should be no longer than 30 feet for the most  
favorable results. If you must run wire longer than 30 feet, we recommend using larger  
wire of 12 or 14 gauge.  
Among the factors to consider in the planning of your speaker placement is that the front  
of the speakers should be free from such obstructions as furniture or built in architecural  
features. High and midrange frequencies will be absorbed by fabric, carpet, curtains and  
soft furnisings. Walls and hard floors will reflect sound waves.  
Regardless of the speaker model (ceiling or wall), the speakers should not be installed  
closer then 3' from adjacent or intersecting walls.  
IMPORTANT:  
The DC265 is not magnetically shielded. Avoid mounting speakers closer than 20” from  
a video monitor or TV screen. After installation, if any video or TV screen distortion is  
detected, the video monitor or TV must be moved beyond the effect of the magnet motor.  
The magnets will distort and discolor the screen and could cause permanent damage to the  
picture tube.  
Multiple pairs of speakers placed in strategic locations within your coverage area can be a  
fundamental solution when designing a system that requires large coverage.  
Keep in mind that wire must be run to the location of the speakers. Walls, studs, ducts  
and joists in your home may be difficult to get around when wiring your speakers, so  
understanding your home's construction and properly planning your design is important.  
An example is a home constructed of block with limited wall depth. This would present a  
problem for inwall installation and wire management.  
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DC265 / DC365 INSTALLATION  
Installation Tips  
Caution: Do not attempt to connect the speakers to any source, amplifier or receiver that is  
turned on. Be sure the receiver is off prior to connecting the speakers.  
Adhere to all electrical and building code requirements for your area.  
The minimum mounting depth of 4" measured from the face of the wall or ceiling is needed  
for proper clearance. The speakers can be placed beside studs or other wall interior items  
but avoid near proximity to pipes, machinery and high amperage wiring.  
The DC265 is designed to use the wall cavity as the enclosure. It is not necessary to install  
an enclosure unless required to do so by local electrical or fire regulations.  
The mounting tab brackets incorporated into the speakers can accommodate sheet rock or  
wall board thicknesses of 1/2” to 1-3/8”. Spacers or longer screws can be used on thinner  
or thicker surfaces.  
Push Lock Speaker Terminals  
Built-in “easy turn” wall mounting tabs  
Adding insulation such as 3" to 4” insulation or damping material behind the speaker  
generally improves the sound quality.  
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DC265 / DC365 INSTALLATION  
Installation Tips  
Parallel or series wiring is not recommended for these speakers. The speakers should  
only be connected to receivers with 4-8 ohm amplifier loading. Avoid parallel or series  
wiring your Dual speakers with any other speaker type or brand.  
Always connect speaker wires using the correct 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 color type or colors of the wires/wire itself (copper or  
silver).  
Important: In order to maintain correct polarity, always connect speaker wire using the  
positive (+) terminal on the receiver to the positive (+) wire, and the negative (-) terminal on  
the receiver to the negative (-) wire.  
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DC265 / DC365 INSTALLATION  
Installation Guide  
When ceiling mounting your speakers, attempt to make the locations as symmetrical as  
possible.  
When wall mounting, carefully measure the distance from the floor to the speaker center  
so both speakers are the same distance from the floor. You may use the template that is  
included with your Dual speakers to determine the correct cut-out dimensions.  
Cut the hole or opening using a sheet rock saw, keyhole saw or other suitable tool. Place  
the speaker in the opening to verify a correct flush fit.  
Remove the speaker grille at this point of the installation to gain access to the screws  
which turn the mounting tabs that will secure the speaker to the mounting surface. The  
screw heads that lock the tabs can be identified by turning the speaker over and pushing  
on the tab. The corresponding screw head will protrude identifying which screws you will  
need to turn once the speaker is connected, and in the proper position within the wall or  
ceiling.  
Run speaker wires from the amplifier to the speakers. Allow an extra 2' of wire at the  
speaker cutout location to make installation easier. Strip and twist about 1/2” of insulation  
off the speaker wires. The speaker wire runs should be hidden as well as possible  
within the wall or ceiling and should not come in contact the speaker basket, be wrapped  
around the crossover network or hang loosely near a stud as vibration may cause poor  
sound quality.  
Insert the speaker into the opening cut in the wall or ceiling, slide the whole speaker  
into the wall cavity and center the speaker in the opening. Once the speaker wires are  
attached and all wire management is complete and the speaker is in the flush position,  
turn the screw heads associated with the tabs clock-wise to tighten the tabs against the  
wall or ceilings interior surface.  
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DC265 / DC365 INSTALLATION  
Installation Guide  
Test your system to insure all connections are correct and the speakers are active.  
These speakers are designed with adjustable tweeters. The tweeters can be rotated  
or pivoted if desired. The angle of the tweeters can be adjusted diametrically and to a  
maximum of approximately 20 degrees off axis.  
Do not force the pivots beyond the limits of the built in stop positions. The maximum  
position or stop can be felt during the adjustment. If the tweeter stops moving in that  
direction, then it is safe to conclude that you are at the maximum adjustment. Please do  
not force further movement in that direction!  
Replace the white (paintable) grill into the speaker baffle. If a color other than white is  
desired, the baffle and grille can be painted to match any interior. Most indoor paint  
types are suitable. Primer can be used when darker colors are required. Please avoid  
painting the inner black baffle or drivers as this will affect the sound quality and reduce the  
performance of the tweeter dramatically. When using spray method of painting, mask the  
interior baffle to protect the drivers from overspray.  
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DC265 / DC365 TROUBLESHOOTING  
Problems?  
Troubleshooting 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.  
Loudness Button The Loudness button on most receivers is designed  
to add depth when your system is being used for  
background music or being played at very low volume.  
Unnatural Sounds 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.  
For Your Records You must have proof of purchase to receive warranty  
service.  
Please keep your original sales receipt and be prepared  
to provide this receipt in the event you require service,  
as your original receipt is considered the best proof of  
purchase and indicates the date you purchased your  
Dual product.  
Dual Model _____________________________________  
Dealer Name____________________________________  
Dealer Phone____________________________________  
Purchase Date____________________  
Note: You may want to keep your original sales receipt or a  
photo copy with this installation/owner’s manual.  
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DC265 / DC365 WARRANTY  
Limited Two-Year Warranty  
This warranty gives you specific legal rights. You may  
also have other rights which vary from state to state.  
What to do?  
1. Before you call for service, check the  
troubleshooting guide in your owner’s manual.  
A slight adjustment of any custom controls or  
connections 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 for a period of two years 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 a copy of the original receipt from the retailer to  
an authorized service center.  
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, renewed  
or comparable product (whichever is deemed  
necessary) in exchange without charges, subject to  
verification of the defect or malfunction and proof  
of the date of purchase. Subsequent replacement  
products are warranted for the balance of the original  
warranty period.  
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.  
Who is covered? This warranty is extended to the  
original retail purchaser for products purchased and  
used in the U.S.A.  
4. For more information and for the location of the  
nearest authorized service center please contact us  
by one of the following methods:  
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.  
Call us toll-free at 1-866-382-5476  
E-mail us at [email protected]  
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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DC265 / DC365 SPECIFICATIONS  
DC365  
DC265  
• Black polypropylene woofer cone  
• Silk dome tweeter  
• Black carbon fiber cone  
• Santoprene surround  
• Rotating directional tweeter  
• Tweeter protection circuitry  
• Built-in crossover  
• Silver plated speaker binding posts  
• Paintable speaker grille and frame  
• 150 Watts Maximum Power Handling  
• 100 Watts RMS Power Handling  
• 89 dB SPL +/-3dB  
• Rear speaker enclosure  
• Titanium dome tweeter  
• Rotating directional tweeter  
• Tweeter protection circuitry  
• Adjustable tweeter Level control  
• Built-in crossover  
• Gold plated speaker binding posts  
• Paintable speaker grille and frame  
• 180 Watts Maximum Power Handling  
• 120 Watts RMS Power Handling  
• 92 dB SPL +/-3dB  
• 50 Hz to 20,000 Hz  
• 8 ohm Nominal Impedance  
• 45 Hz to 20,000 Hz  
• 8 ohm Nominal Impedance  
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Dual Electronics Corp.  
21318 64th Ave. South  
Kent, WA 98032  
Toll Free: 1-866-382-5476  
©2006 Dual Electronics Corp.  
NSA0306-V01  
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