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
Residential Use (Fig. 2)
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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