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Speaker Installation - Chapter 2
Point Seven. Consult the manual of your power amplifier for specific information.
Lr a properly-phased
system, a positive input to the amplifier should result in a
positive voltage on the red terminal, and push the driver forward.
If you are using a dual banana plug connector, one side of the plug usually has a
"GND"
marker molded on it so you can keep polarity straight after unplugging
and
replugging.
In standard practice, the GND side connects to the black terminal of the
speaker.
To connect wires to the teminals
if you are not using a banana plug:
1.
Strip about 1/2" (15 mm) of insulation from the ends of each wire. If the wire is
stranded, twist the strands together at the end.
2
Tum the red and black terminal caps counter-clockwise
until they reach their
limit.
As you do, the hole through the terminal post will be exposed.
3.
Insert the wires into the holes, observing proper polarity.
4.
Tighten the terminal caps so that they hold the wire firmly. Make sure no
insulation is caught inside the terminal, to avoid a loose connection.
Power and Protection
The Point Sevens are rated to handle 50 watts program material. However, an
amplifier with a 100 watt power rating into four ohms, like the Alesis RA-100
Reference Amplifier,
is recommended for most monitoring
situations. This is because
an amplifier with too little power driven into clipping is far more likely to destoy a
tweeter than a higher powered anp delivering a clean, undistorted signal.
Be sure to veri$ that your amplifier is rated for 4 ohm speakers. Some older
amplifiers are not and may fail if overloaded.
Alesis is not responsible for any
failures caused by the use of an inproperly-rated
amplifier.Also,
there is gq situation
where an amplifier rated beyond 200 watts should ever be used because of the
danger of damaging the Point Seven. To do so is asking for trouble and will void
your waranty.
Alesis does not suggest the use of any extemal protection devices, but considers such
devices as fuses, lamps and/or thermal breakers safe to use, so long as they do not
cause failures or require modifications
to the Point Seven's construction which would
void the warranty.
Actually, many such devices are generally considered ineffective
and can additionally
alter the speaker's sound character, an undesirable trait for a
studio monitor.
The best protection against speaker failure is to mix at a reasonable listening level.
Alesis thanks you for choosing our products.
We value any comments you may have
about this monitor system, this manual, your Alesis dealer and about our factory
service. Please take a minute now to fill out your warranty card and tell ur what you
think
Point Seven Reference Manual
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