NHT HDP-2 - Manual (Page 4)

If you are unable to slide the HDP-2 brackets down onto the wall screws, check to ensure:
z Nothing is obstructing the speaker
z The brackets are mounted on the speaker facing opposite directions
z You are using the proper keyhole on both brackets
z The wall screws are exactly 16 inches apart, centered on the studs
z There is enough room between the screw head and the wall for the bracket to slide down.
„ Connections
Before connecting speakers to your system, it is very important that you turn off the power to your amplifier / receiver to avoid
damage to the equipment.
The HDP-2 is compatible with virtually all quality amplifiers. Proper wiring of the speaker is essential to good sound. At a minimum, 16 AWG
speaker cable is recommended for runs of 10 feet or less, with 14 AWG used for longer runs. For specialty cable considerations, consult your local
authorized NHT retailer. For best results, use equal length runs of cable for all the speakers. Prepare your speaker cable by stripping 1/4” to 3/8” of
insulation from the ends and twisting the exposed wire strands tightly. The five-way binding posts on the back of the speaker will accept raw wire,
banana plugs, or spade plugs. Tighten the binding posts by hand, as pliers can strip or break them.
Be sure to wire all the speakers “in-phase.” That is, the Positive (red) terminal on the amplifier output must be connected to the corre-
sponding 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.
To minimize noise pickup, segregate cables by function. Do not run low level signal cables parallel to power cables, speaker cables, or digital cables.
Also, do not run speaker cables or digital cables parallel to power cords or parallel to each other. If different types of cables are placed near each
other at some place in your system, separate them by the maximum practical distance and cross them at right angles where they meet. Do not twist
or tie AC power cords with speaker cables.
„ Operation
The HDP-2 was 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 voumes, 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. If you can feel any heat emanating from the woofer or tweeter, reduce the level immediately. 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
Your speakers require minimal maintenance under normal use. The cabinet may be cleaned using a damp cloth or a mild, non-abrasive glass
cleaner. To clean the grille, first remove it from the speaker, then brush lightly with a soft brush or use a vacuum on its lowest setting. Do not expose
the speaker to direct sunlight, high temperatures, or moisture. Do not attempt to clean the actual drivers.
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