Nady XA-1600, XA-900, XA-2100, XA-1100 operating instructions

OWNER’S MANUAL

XA SERIES

AMPLIFIERS

STEREO POWER AMPLIFIERS

XA SERIES

STEREO POWER AMPLIFIER

Congratulations on your choice of stereo power amplifiers — you have purchased one of the finest stereo amplifiers on the market to­day. This unit was developed using the expertise of professional sound engineers and working musicians. You will find that your new
NADY AUDIO XA Series amplifiers has superior performance and greater flexibility than any other amplifiers in its price range. Please
read this manual carefully to get the most out of your new unit.

Thanks for selecting NADY AUDIO as your choice in stereo power amplifiers.

FEATURES

Offering top power, superior performance and full professional operating features in a roadworthy compact chassis, the XA Series
amplifiers are perfect for even the most demanding sound reinforcement installation and touring applications.

The operating instruction in this manual are for the XA-900/1100/1600 and XA-2100 power amplifiers. The operation and functions of
these units are the same, except as noted.

• Full operating features: detent volume controls; parallel
balanced XLR and 1/4" TRS inputs; stereo (dual channel),
parallel-input, or bridged mono operating modes with selector
switch; binding post (banana plug) outputs; ground lift switch

• Full safety/reliability features: 2 dual speed fans for cooling;
soft-start turn on, noise-free on-off; built-in DC offset;
independent DC and thermal overload protection on each
channel; short circuit and speaker protection; DC servo
operation; built-in digital current limiter

• Power ON, Clip, Signal, and Protect LED indicators for each
channel

• Roadworthy, rugged double rack space (2U) housing

• ~115(60Hz)/~230V(50Hz) AC select switch and IEC power cord
connector with built-in fuse

• XA-900 - 2 x 300W @ 4Ω, Bridged mono: 900W @ 4Ω

• XA-1100 - 2 x 475W @ 4Ω, Bridged mono: 1100W @ 4Ω

• XA-1600 - 2 x 675W @ 4Ω, Bridged mono: 1600W @ 4Ω

• XA-2100 - 2 x 840W @ 4Ω, Bridged mono: 2100W @ 4Ω

TABLE OF CONTENTS

FEATURES................................................................................. 3

WARNING................................................................................... 4

FRONT & REAR PANEL CONNECTIONS ................................ 5

INSTALLATION .......................................................................... 6

CONNECTIONS.......................................................................... 7

BLOCK DIAGRAM ..................................................................... 9

SPECIFICA TIONS .................................................................... 10

Date of Purchase ____________________________________
Dealer’s Name ______________________________________
City _______________________________________________
State _____________________ Zip _____________________
Model # ____________________________________________
Serial # ___________________

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WARNING

An equilateral triangle enclosing a lightening flash/arrowhead symbol is
intended to alert the user to the presence of uninsulated “dangerous
voltage” within the product’s enclosure which may be of sufficient

ATTENTION

:

RISQUE DE CHOC ELECTRIQUE NE PAS OUVRIR

magnitude to constitute a risk of electric shock.

An equilateral triangle enclosing an exclamation point is intended to alert
the user to the presence of important operating and service instructions in
the literature enclosed with this unit.

IMPORTANT SAFETY INSTRUCTIONS

When using this electronic device, basic precautions should always be taken, including the following:

1. Read all instructions before using the product.

2. Do not use this product near water (e.g., near a bathtub, washbowl, kitchen sink, in a wet basement, or near a swimming
pool, etc.).

3. This product should be used only with a cart or stand that will keep it level and stable and prevent wobbling.

4. This product, in combination with headphones or speakers, may be capable of producing sound levels that could cause
permanent hearing loss. Do not operate for a long period of time at a high volume level or at a level that is uncomfortable.
If you experience any hearing loss or ringing in the ears, you should consult an audiologist.

5. The product should be positioned so that proper ventilation is maintained.

6. The product should be located away from heat sources such as radiators, heat vents, or other devices
(including amplifiers) that produce heat.

7. The product should be connected to a power supply only of the type described in the operating instructions or as marked on the
product. Replace the fuse only with one of the specified type, size, and correct rating.

8. The power supply cord should: (1) be undamaged, (2) never share an outlet or extension cord with other devices so that the
outlet’s or extension cord’s power rating is exceeded, and (3) never be left plugged into the outlet when not being used for
a long period of time.

9. Care should be taken so that objects do not fall into, and liquids are not spilled through, the enclosure’s openings.

10. The product should be serviced by qualified service personnel if:
A. The power supply cord or the plug has been damaged.
B. Objects have fallen into, or liquid has been spilled onto the product.
C. The product has been exposed to rain.
D. The product does not appear to operate normally or exhibits a marked change in performance.
E. The product has been dropped, or the enclosure damaged.

11. Do not attempt to service the product beyond what is described in the user maintenance instructions. All other servicing should
be referred to qualified service personnel.

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