Nady Audio SPA 850, Owner'S Manual

Page: 3 / 12

XA SERIES
3
S T E R E O P O W E R A M P L I F I E R
Date of Purchase ____________________________________
Dealer’s Name ______________________________________
City _______________________________________________
State _____________________ Zip _____________________
Model # ____________________________________________
Serial # ___________________
Offering top power, superior performance and full professional operating features in a roadworthy compact chassis, the XA Series are
perfect for even the most demanding sound reinforcement installation and touring applications.
The operating instruction in this manual are for the XA-900 and XA-1100 power amplifiers. The operation and functions of these units
are the same, except as noted.
FEATURES
TABLE OF CONTENTS
Congratulations on your choice of stereo power amplifiers — you have purchased one of the finest stereo amplifiers on the market to-
day. This unit was developed using the expertise of professional sound engineers and working musicians. You will find that your new
NADY AUDIO XA-900/1100 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.
• Full operating features: detent volume controls; parallel bal-
anced 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 cir-
cuit 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 @ 4
Ω
, 2 x 400W @ 2
Ω
Bridged mono: 675W @ 4
Ω
• XA-1100 - 2 x 475W @ 4
Ω
, 2 x 730W @ 2
Ω
Bridged mono: 1100W @ 4
Ω
FEATURES ................................................................................. 3
WARNING ................................................................................... 4
FRONT & REAR PANEL CONNECTIONS ................................ 5
INSTALLATION .......................................................................... 6
CONNECTIONS .......................................................................... 7
BLOCK DIAGRAM ..................................................................... 9
SPECIFICATIONS .................................................................... 10