NXG Technology NX-PRO6820CE User Manual

NX-PRO6820CE 61/2˝ Two-Way Commercial or Residential
Ceiling Speaker with ABS Composite Rear Enclosure
16648 North 94th Street • Scottsdale, AZ 85260
1-800-733-0008 www.nxgtech.com
NX-PRO6820CE 61/2˝ Two-Way Commercial or Residential
Ceiling Speaker with ABS Composite Rear Enclosure
Congratulations on choosing NXG 61/2˝ Two-Way Commercial or Residential In-Ceiling Loudspeakers with ABS Composite Rear Enclosure. Like all NXG products, great care has been taken in their design. Their combination of advanced engineering and state-of­the-art materials will provide you with years of listening pleasure, while blend­ing smoothly into your installation decor. Before you get started, it is a good idea to identify all the parts and hardware (see Fig. 1).
Black grille
adhesive
FIG. 1
Where To Place Your In-Ceiling Speakers
Placement can make all the difference in how your speakers sound, and how easy they will be to install. Carefully consider where your speakers should be positioned. For optimum performance, speakers should be mounted to the left and right of the main listening area and a minimum of 8 to 10 feet apart (see Fig. 2). Avoid mounting speakers in stud cavities containing electrical wiring, heating ducts, water pipes, etc. Make sure the ceiling materials are sturdy enough to support the weight of the speakers. For residential use with a con­ventional stereo amplifier or surround receiver, be certain the transformer tap switch is set to 8 ohms (see Fig 4).
Cutout templates
Painting masks
Aluminum grille
with foam
inner grille cover
Speaker with
self-contained
mounting clamps
1
Connector
2
Input
3
Commercial Use (Fig. 3)
When using the NX-PRO6820CE for a distributed system, it is important that you know if the amplifier you intend to use is a 70-volt type or 8 ohm. You also need to know the desired sound level from each speaker so you can calculate the total amplifier power needed. Speaker placement depends on room size, coverage density desired, coverage angle of the speaker, ceiling height, and type of audio program to be reproduced. Our descriptions are not intended to cover all of the design considerations of a large distrib­uted system. The main concern when using the NX-PRO6820CE is the setting of the transformer tap switch while using a 70-volt amplifier (see Fig. 4). As a general rule, the lower tap settings are used for background music, the higher settings are used to over­come louder environments. Make your preliminary selection by setting the slotted con­trol so the arrow is pointing to the desired transformer tap. You can always go back and change the setting since the control is on the face of the speaker.
FIG. 3
1 2 3 4 5 6 7 8 9
2
FIG. 2
NX-PRO6820CE speakers can be used
as rear surround channels by mounting
them (1) on each side of, (2) just behind,
or (3) in back of the viewing position.
1
3
FIG. 4
Adjustable Tilt-Swivel Tweeter Island (Figs. 5A and 5B)
The tweeter island in the NX-PRO6820CE ceiling speaker can be directed toward the listening area, allowing you to tailor the speaker’s dispersion pattern to better fit the desired listening area. The overall smoothest response is achieved with the tweeter island facing straight out; however, you may find the sound more pleasing by aiming the tweeters toward a particular listening position. To adjust the tweeter island direction, you can rotate the tweeter housing clockwise or counterclockwise (a maximum of 180°) as shown in Fig. 5a.
Adjust the tweeter island’s angle by holding it on either side of the long axis and tilting the island toward the desired listening position (a maximum of 20° each direction) as shown in Fig. 5b.
180° max.
swivel
FIG. 5A
Speaker Installation In Existing Construction (Fig. 6)
Once you have selected the location for your speakers, you are ready to install them. You will need the following:
• Stud Finder • Drill & Drill Bits • Wire Cutter/Strippers• Speaker Wire
• Pencil • Phillips Screwdriver • Utility Knife or Drywall Saw • Masking Tape
NXG recommends the use of 16-gauge wire minimum. For wire options, consult your retailer or custom audio contractor.
1. NXG Architectural Speakers are designed to be installed in the ceiling area between studs. Using a stud finder, make sure you are between two studs. Trace around the outside of the template with a pencil.
2. Cut the hole using your drywall saw. You may want to start with a small hole in the center of the outline. This will allow you to check for any obstructions that may exist behind the desired location. CAUTION: Be certain electrical wiring, water pipes or heating ducts do not interfere in the planned installation areas prior to drilling or cutting the wall.
3. Run speaker wire from your amplifier or speaker switching device to the speaker location.
4. Carefully remove the grille and inner grille backing. (Note: The open cell foam inner grille backing is designed to hide speaker components from view and may be removed if desired.) If you like the standard white finish of your NXG speakers, skip to step 5, but if if you want your speakers to blend in with a colored wall or ceiling, now is the time to paint your speak ­er’s outer frame and perforated grille. (Remove the foam inner grille backing and put it aside in a clean and dust free area for later reinstallation if desired.) The speaker’s outer surface will accept ordinary latex wall paint or aerosol spray paint. Because the speaker baffle surface behind the grille should remain unpainted, you will need to cover this area with the supplied cardboard paint mask. Cover the speaker’s interior black surface, woofer and tweeter. Paint the outer speaker frame and grille separately. (Grille painting hint: Use a paint roller that is nearly out of paint to first paint the inside of the grille, then the outside. This will avoid paint filling the grille perforations.)
5. The NX-PRO6820CE has a metal security loop on the rear of the enclosure. You can use wire rope to secure the unit to a solid structural part of the building to provide extra protection in case of a ceiling failure or earthquake.
6. Be sure to set the transformer tap switch to your desired value. Note: 8 ohm setting for typical stereo/surround receivers, desired tap for distrib­uted 70 volt systems.
7. Attach the wire to the input terminals on the rear of the speaker. Remember to maintain proper polarity with the amplifier by attaching the positive (+) lead to the red terminal and the negative (-) lead to the black terminal.
8. See Fig. 7 (next page). With the speaker wire attached to the speaker, slide the speaker up inside the cut-out hole. Center the speaker in the cut-out hole and turn the four locking screws clockwise until the speaker is drawn up snugly to the wall board from behind, clamping the speaker in place. Try to tighten each screw equally. Replace the speaker grill by gently pressing it into place.
FIG. 6
20°max.
tilt left
FIG. 5B
20°max.
tilt right
New Construction
1. Determine speaker locations and mark them on your plans for future reference.
2. If possible, run speaker wires after HVAC and electrical wiring is in place.
3. Secure speaker wires in place along the run with insulated staples only and be careful not to pierce the wire’s insulation. Allow a bit of slack for expansion of building materials.
4. Needless to say, the actual speakers should not be installed until the wall board is in place. In the meantime, leave several feet of wire coiled up and secured at the back side of the mounting hole.
5. To complete installation follow steps 2 through 8 above.
NX-PRO6820CE Specifications
Maximum Power Handling: 5 - 120 watts
[40 watts (transformer limited) in 70 volt mode]
Sensitivity: 90dB @ 1 watt/1 meter
Frequency Response: 40 Hz-22,000 Hz
Driver Complement:
6.5˝ (165mm) metallic anodized injection-molded radiative cone woofer w/rubber surround
1˝ (25 mm) metallic anodized liquid-cooled dome tweeter w/minimun diffraction tilt-swivel island
Transformer Tap Settings: 2W, 5W, 10W, 20W, and 40W (for 70 volt systems)
Plus standard 8 ohm setting (for conventional audio systems)
Nominal Impedance: 8 ohms
Grille: Corrosion-resistant powder coated aluminum
Overall Dimensions: 11˝ (diameter) round x 7˝ D
Required Ceiling Cutout: 93/4˝ (diameter) round
NXG Speakers Three-Year Limited Warranty
If the NXG speaker system proves to be defective in workmanship or materials with­in three years from the date of the original customer’s purchase, we will, at our option, repair or replace the defective product.
Security
Loop
Input
Connectors
FIG. 7
Operational Check
After making all connections, it’s a good idea to make sure everything is working properly. Turn on your surround or stereo system, making sure the volume control is turned down and that the balance control is in the center position. Activate a musical or movie source such as FM, a CD or DVD player. Gently turn up the volume, you should hear sound coming from your new NXG speakers. If no sound is heard from any or all speakers, switch off the system immediately and check for open or loose connections, wrong polarity or shorts, proper transformer tap selector switch setting, or proper source selection.
Limitation of Implied Warranties
Any implied warranties, including warranties of merchantability and fitness for a particular purpose, are limited in duration to the length of this warranty.
Exclusion of Certain Damages
NXG’s liability for any defective product is limited to repair or replacement of the product at our option. NXG shall not be liable for incidental or consequential dam­ages of any kind or character because of product defects. Some states do not allow limitations on how long an implied warranty lasts and/or do not allow the exclusion or limitation of incidental or consequential damages, so the above limitations and exclusions may not apply.
This Warranty Does Not Cover:
• Damage caused by abuse, accident, misuse, negligence, or improper operation.
• Any product whose serial number has been altered, defaced, or removed.
• Products that have been altered or modified.
• Normal wear and maintenance.
• Damages caused by shipping. (All claims for shipping damage must be made with the carrier.)
Warranty Service
Warranty service must be performed by an authorized service center, usually an NXG speaker systems dealer or its authorized agent. You may obtain a list of authorized service centers by contacting NXG. All warranty repairs must be accompanied by the original bill of sales. No other document is acceptable or is required. This warranty gives you specific legal rights, and you may also have other rights which vary from state to state.
NXG reserves the right to revise speaker system specifications without notice.
16648 North 94th Street • Scottsdale, AZ 85260
1-800-733-0008 www.nxgtech.com
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