Bogen NQ-PA120 Quick start guide

Publication Number 740-00112B
NQ-PA120,
NQ-PA240,
NQ-PA600 Public Address
Ampliers Installation and Use
The Nyquist Public Address Ampliers are DSP-
based integrated mixer and power ampliers de-
signed for paging and public address applications.
They enable microphone and line-level source
inputs to be integrated into a Nyquist system. The
NQ-PA120 and
NQ-PA240 public
address ampliers
are each a half-rack
1RU high enclosure.
The NQ-PA-600
public address amplier is a half-rack 2RU high en-
closure.
Each enclosure contains a Class D audio power
amplier, a universal switched-mode power supply,
an RJ45 network jack, a USB port, and pluggable
Phoenix style terminals for Mic/line inputs, and
loudspeaker and Line-Out connections.

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WARNING: To reduce the risk of re or electric
shock, do not expose this apparatus to rain or mois-
ture.
Avertissement: pour réduire le risque d’incendie ou
de choc électrique, ne pas exposer cet appareil sous
la pluie et l’humidité.
The apparatus shall not be exposed to dripping or
splashing and that no objects lled with liquids,
such as vases, shall be placed on apparatus.
L’appareil ne doit pas être exposé aux écoulements
ou aux éclaboussures et aucun objet ne contenant
de liquide, tel qu’un vase, ne doit être placé sur l’ob-
jet.
The mains plug is used as disconnect device. The
mains plug of apparatus should not be obstructed
OR should be easily accessed during intended use.
To be completely disconnect the power input, the
mains plug of apparatus shall be disconnected from
the mains.
La prise du secteur est utilisé pour déconnecter le
système. La prise du secteur ne doit pas être ob-

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struée ou doit être facilement accessible pendant son
utilisation. Pour être complètement déconnecté de
l’alimentation d’entrée, la prise doit être débranchée
du secteur.
Minimum distances 10cm around the apparatus for
sufcient ventilation.
- 10cm distance minimale autour de l’appareil pour
une aération sufsante
The ventilation should not be impeded by covering
the ventilation openings with items, such as news-
papers, table-cloths, curtains, etc.
- il convient que l’aération ne soit pas gênée par l’ob-
struction des ouvertures d’aéra
No naked ame sources, such as lighted candles,
should be placed on the apparatus.
- il convient de ne pas placer sur l’appareil de sourc-
es de ammes nues, telles que des bougies allumées
The use of apparatus in moderate climates.
- si l’appareil est destiné à être utilisé sous un climat
tempéré.

1200 MacArthur Blvd. Suite 304,
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Notice
Every effort was made to ensure that the
information in this manual was complete and
accurate at the time of printing; however, all
information is subject to change.
Important Safety Information
WARNING: To reduce the risk of re or electric shock,
do not expose this apparatus to rain or moisture.

1200 MacArthur Blvd. Suite 304,
Mahwah, NJ 07430 • 1-800-999-2809
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Always comply with the following basic safety pre-
cautions when installing and using the unit:
1. Read these instructions.
2. Keep these instructions.
3. Heed all warnings.
4. Follow all instructions.
5. Clean only with dry cloth.
6. DO NOT install near any heat sources such as
radiators, heat registers, stoves, or other appa-
ratus (including ampliers) that produce heat.
7. DO NOT defeat the safety purpose of the polar-
ized or grounding-type plug.
A polarized plug has two blades with one wider
than the other. A grounding-type plug has two
blades and a third grounding prong. The wide
blade, or the third prong, are provided for your
safety. If the provided plug does not t into your
outlet, consult an electrician for replacement of
the obsolete outlet.

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8. Protect the power cord from being walked on
and/or pinched, particularly at plugs, conve-
nience receptacles, and the point where they
exit from the apparatus.
9. Only use attachments/accessories which are
specied by the manufacturer.
10. Unplug this apparatus during lightning storms
or when unused for long periods of time.
11. Refer all servicing to qualied service person-
nel. Servicing is required when the apparatus
has been damaged in any way, such as pow-
er-supply cord or plug is damaged, liquid has
been spilled or objects have fallen into the

1200 MacArthur Blvd. Suite 304,
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apparatus, the apparatus has been exposed to
rain or moisture, does not operate normally, or
has been dropped.
This equipment is not suitable for use
in locations where children
are likely to be present. Equipment is
intended for use
only in a restricted access area.
Installation
To install the Nyquist Public Address Amplier:
1. Ensure the POWER switch is in the off position.
2. Connect the universal mains power line cord into
the amplier.
3. Connect a Cat5 type cable into the amplier’s
Ethernet port and ensure the other end of the
cable is correctly connected to your network.

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4. Connect the loudspeaker wires to the Amplier
Output Terminals, which are labeled + and -.
This amplier is congured for single-channel
operation for 70V/8Ω applications.

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Notice
The minimum impedance of this 70V/8Ω
High Impedance system should not be less
than 8Ω.
The combined total power of each speaker
tap must not exceed 80% of the rated
amplier power.
Failure to observe minimum speaker
impedance will cause the amplier to self
protect until the speaker conguration is
corrected.
5. If using Mic/Line Input, route the input.
This amplier uses a balanced analog audio
input. You can use either XLR or Phoenix (but
not both) as the input.
6. Plug the power line cord into the power
source.
7. Toggle the Power switch to the On position.

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8. For information about conguring the amplier
for the Nyquist system, refer to the Nyquist Pub-
lic Address Ampliers Conguration Manual.
Power Ratings
The NQ-PA120 can provide 120 Watts into 70V or
8Ω load congurations.
The NQ-PA240 can provide 240 Watts into 70V or 8Ω
load congurations.
The NQ-PA600 can provide 600 Watts into 70Vor 8Ω
load congurations.
Viewing and
Understanding LEDs
Two LEDs appear on the
front of the amplier. One
is labeled POWER and
appears as solid red during initial power up, ashes
green during a boot sequence, and appears solid
green when fully booted.