GUIDE
For all Dual 5-1/4" LCR In-Wall Loudspeakers
Rectangular In-Wall Loudspeakers INSTALLATION
Congratulations! You have purchased a high quality stereo loudspeaker. When matched to comparable electronic equipment, expect years of quality high fidelity sound. We are constantly striving to provide the very best technology has to offer.
The following manual is designed to give you, the installer or owner, basic information as to the speaker’s installation and operation. It is beyond the scope of this manual to go into all the details that must be taken into consideration in a sophisticated high fidelity system. When installing the wiring and speakers it is important to adhere to all local codes and regulations. Consulting a professional will help to maximize your system’s performance.
If you have any questions that are not answered by this manual, contact your local dealer for assistance. For the most current information please visit: www.oemsystems.com.
GENERAL DESCRIPTION
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SHIPPING DAMAGE
Each speaker is thoroughly tested before it leaves the factory. However, in shipment, accidents may occur. Please inspect your speakers carefully when you receive them to make sure there is no damage. If there is, please notify your dealer, or supplier immediately for assistance. If you received your speakers by public transportation, report the damage at once to the shipping company.
AMPLIFIER OPERATION
These speakers will perform well with amplifiers from 5 to 125 Watts RMS. However, damage to the speakers can be done by amplifiers of nearly any power rating if the amplifier is overdriven into clipping. “Amplifier clipping” is a phrase used to describe a condition when, because of the volume demand, an amplifier is being asked for more power than it can give. Clipping causes distortion of the audio signal.
If you should hear an unusual amount of distortion at high listening levels then consider reducing the volume. DAMAGE DONE TO A SPEAKER BY CLIPPING IS NOT COVERED UNDER THE WARRANTY.
SPEAKER PLACEMENT
Placement of
Ideally, the speakers should be located where they will provide the best possible sound and ease of installation. It is beyond the scope of this publication to discuss all of the various aspects of speaker placement but here are some suggestions that should be helpful. For more bass, place the speakers between 18 and 36 inches from an adjacent wall as measured to the center of the speaker. Avoid placing the speakers less then 18 inches from an adjacent wall. When placing speakers near a corner, avoid locating them an equal distance from the two adjacent walls.
When used in a home theater the front left and right speakers should be separated from each other a distance of 0.8 to 1.2 times the seating distance (assuming they are on the same plane as the center speaker). For example, if the seating position is 10 feet from the viewing screen and/or center speaker then ideally the distance between the left and right speakers should be somewhere between 8 and 12 feet, (10 x 1.2ft = 12ft). MTM style speakers are best installed in portrait orientation. However, landscape is often used for the center speaker for aesthetic or clearance purposes. If the speakers are located behind an acoustically transparent screen then all the speakers should be oriented portrait style. Aiming the pivoting tweeter toward the listening area will add a little brilliance by raising the amplitude of the highest frequencies (>12kHz). Aim the tweeter by pressing the lens area along side the tweeter dome.
WIRING
To achieve maximum performance from your new speakers we strongly suggest the use of good quality stereo cable. There are many good brands available. We recommend that the cable be at least 16 gauge or larger for runs of over 50 feet and that the cable be double insulated. This is often referred to as “jacketed” speaker cable. “Zip cord,” which is single insulated and is often made with clear insulation, should be avoided as it is not as durable. Allow about 2½ feet (0.8m) of free cable at the speaker
Avoid bundling speaker cables parallel to electrical cables for extended lengths. Though the impedance is low and the likelihood of interference low, this may help reduce hum and RF interference. When securing the cable, use care not to staple or nail the electrical conductors. Doing so could result in a short that might damage the electronics.
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Rev. A | page 1 of 2 |