NHT CS-6.1 Ci Speaker User Manual


 
grille and attach the larger absorptive pad onto the grille through the circular cutout. Do not attach the smaller absorptive
pad.
11. Attach the metal grille by inserting it into the grooves in the bezel.
Painting
The bezel frame and grille of the CS-6.1 Ci and CS-6.3 Ci are finished in a matte white powder-coated finish that may be
painted to match the ceiling. The frame and grille may be painted either before or after the speaker is installed. Keep in
mind that the grille contains hundreds of tiny holes that are essential to the sound of the speaker. Take care not to cover
these holes with paint.
1. Paint the bezel frame and the grille at the same time using the same paint. Use the supplied paint shield to protect the
driver and inside of the bezel from overspray. Fold the edge of the shield down and insert it into the groove in the bezel
where the grille would attach. Be careful not to punch through the round hole in the middle.
2. When using spray paint, apply two thin coats, making sure to let the first coat dry completely before applying the
second. This will avoid running. When using a compressor and spray gun, apply the paint using its finest setting. Painting
with a brush is not recommended, but when necessary be sure to thin the paint so as not to cover the holes in the grille.
If paint does cover any of the grille holes, poke them out with a paper clip.
3. Once painting is complete, remove the paint shield from the bezel by carefully punching out the round hole in the
middle, and using this hole to pull the shield free. Keep the paint shield and the round cutout, as they will serve as tem-
plates for attaching the absorptive foam pad(s) to the inside of the grille.
Connections
Before connecting speakers to your system, it is important that you turn off the power to your amplifier / receiv-
er to avoid damage to the equipment. Before installing the CS-6.1 Ci or CS-6.3 Ci, map out the wiring paths
between the speakers and the amplifier. Make sure that the speaker cable does not rest on sharp or pointed
objects.
The CS-6.1 Ci and CS-6.3 Ci are compatible with virtually all quality amplifiers. Proper wiring of the speakers is essential
to good sound. At a minimum, 16AWG 2-conductor speaker cable is recommended for runs of 10 feet or less, with heav-
ier special purpose speaker cable used for longer runs. When permanently installing cable inside walls, be sure to
use cable that is rated for in-wall use and has special jacketing for fire prevention. In the U.S., the U.L. standard
is CL-2, CL-3 and CM cable, and in Canada the CSA standard is FT4 cable. The cables should be run in accor-
dance with National Electrical Code and any applicable local building codes. Prepare the cable by stripping 1/4” to
3/8” of insulation from the ends and twisting the exposed wire strands tightly. The spring-loaded binding posts on the back
of the speakers will accept raw wire only.
Be sure to wire both the left and right speakers "in-phase." That is, the Positive (red) terminal on the amplifier
output must be connected to the corresponding Positive (red) terminal on the speaker. Likewise with the Negative
(black) terminals. All speaker cables have some sort of marking along one or both conductors to help you make the
correct connections. Incorrect speaker phase is indicated by weak bass and the lack of a well-defined stereo image.
Operation
The CS-6.1 Ci and CS-6.3 Ci are designed to handle a wide range of listening levels, but every speaker has limits. It is
important to use common sense and listen for signs of possible distress from the speakers. Underpowered amplifiers are
most often the cause of speaker damage. For example, a 60-watt amplifier runs out of power when called upon to
produce more than 60 watts, and the resulting distortion can damage the speaker. If you tend to listen at high volume lev-
els, more powerful amplifiers are preferable because they are less likely to run out of power.
Noticeable distortion or harsh breakup is an indication that either your amplifier or your speakers are running beyond their
capacity, and the volume should be decreased. Speaker damage most often occurs from sustained high volume levels,
not from transient sounds or brief musical peaks. Excessive boosting of bass, treble or equalizer controls can worsen the
problem, and is not recommended.
Maintenance
The CS-6.1 Ci and CS-6.3 Ci require minimal maintenance under normal use. The grille and bezel frame may be cleaned
using a damp cloth or a mild, non-abrasive cleaner. Do not expose the speakers to direct sunlight or high temperatures.
Do not attempt to clean the actual drivers.