2
SONANCE CINEMA
®
SUBWOOFER AMPLIFIERS
Introduction
Thank you for purchasing the Sonance Cinema
®
SUB 10-250D or
SUB 12-500D power amplifier. These digital amplifiers will provide
you with many years of home entertainment enjoyment. This manual
will teach you all about your new amplifier’s many innovative
features and will show you how to get the very best performance
from your amplifier. Please read it thoroughly.
To achieve the best performance, Sonance recommends that this
amplifier be installed by a Sonance Authorized Dealer/Installer.
Box Contents
Your Cinema SUB 10-250D and SUB 12-500D box should contain
the following items:
(1) Cinema SUB 10-250D or SUB 12-500D amplifier
(1) IEC Power cable (120V Version Only)
(2) Rack ears - 1 left and 1 right
Unpacking
Save the shipping carton and polystyrene inserts so you can safely
transport your amplifier in the future. Before you install the amplifier,
locate the serial number on the rear panel and note it here for future
reference:
S/N: _____________________________________________________
Placement
IMPORTANT: TO AVOID DAMAGE, THE AMPLIFIER MUST ALWAYS
REST ON ITS FOUR FEET TO ALLOW SUFFICIENT CLEARANCE FOR
PROPER VENTILATION THROUGH THE VENTS ON THE CHASSIS
BOTTOM.
Place the SUB 10-250D or SUB 12-500D amplifier on a level
surface, in an upright position, out of direct sunlight and away from
windows through which rain or moisture may enter.
Situate the amplifier away from heat sources such as hot air ducts or
radiators. Be sure that the amplifier is adequately ventilated by
convection cooling or suitable cabinet fans.
I M P O R T A N T : T H E SU B 10 - 2 5 0 D A N D
S U B 1 2 - 5 0 0 D A M P L I F I E R S RE Q U I R E
O N E I N C H O F C L E A R A N C E O N T H E
T O P A N D S I D E S F O R V E N T I L A T I O N .
• Never operate the amplifier on a carpeted surface as this will
compromise ventilation.
• When the amplifier is installed in any cabinet, the front or
back must be open during operation. Alternately, install fans
in the cabinet to ensure continuous ventilation.
• When rack-mounting, use nylon washers on both sides of the
ears to isolate the amplifier from the rack and prevent
ground loops and hum problems.
• Very sensitive low-level sources might pick up some hum
radiated from the SUB 10-250D or SUB 12-500D power
supply. If this occurs, move the unit away from the other
components.
Unpacking
The Cinema SUB 10-250D and SUB 12-500D amplifiers feature a
removable IEC power cord. (A power cord is included with the 120V
version of the amplifier.) Plug the female end of the power cord into
the Power Cord Connector on the amplifier’s rear panel (see Page
3), and plug the male end into a 20-amp grounded wall outlet. DO
NOT plug the power cord into an AC outlet on your preamplifier/
receiver.
I M P O R T A N T : T H E SU B 10 - 2 5 0 D A N D
S U B 1 2 - 5 0 0 D A M P L I F I E R S C A N
P R O D U C E UP T O 60 V O L T S ON T H E
S P E A K E R T E R M I N A L S !
• Never touch the subwoofer output terminals when the
amplifier is operating.
• Always disconnect the power cord when making any changes
to the subwoofer output connections.
(60 pages)
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