1
Thank you for purchasing the SpeakerCraft BB50 power
amplifier. Before proceeding with your installation,
please review Diagrams 1 & 2 on pages 2-3 to familiarize
yourself with the components of the BB50.
Front and Back Panel Diagrams
2-3
Installation Considerations
4
• Power Mode Selection
4
• Input Selection
5
• Operating Multiple Speakers
5
Installation
6-8
Operation
8
Troubleshooting
9
Specifications
10
Warranty
11
Table Of Contents
Page
SAFETY INSTRUCTIONS
• Explanation of Graphical Symbols
1. Read Instructions -
All the safety and operating
instructions should be read before the appliance
is operated.
2. Retain Instructions -
The safety and operating
instructions should be retained for future reference.
3. Heed Warnings -
All warnings on the appliance
and in the operating instructions should be
adhered to.
4. Follow Instructions -
All operating and other
instructions should be followed.
5. Water and Moisture -
The appliance should
not be used near water - for example, near a
bathtub, washbowl, kitchen sink, laundry tub, in
a wet basement, or near a swimming pool, etc.
6. Carts and Stands -
The appliance should be
used only with a cart or stand that is recom-
mended by the manufacturer.
PORTABLE CART
WARNING
7. Wall or Ceiling Mounting -
The appliance
should be mounted to a wall or ceiling only as
recommended by the manufacturer.
8. Ventilation -
The appliance should be situated so
that its location or position does not interfere with
its proper ventilation. For example, the appliance
should not be situated on a bed, sofa, rug, or
similar surface that may block the ventilation
openings; or placed in a built-in installation, such
as a bookcase or cabinet that may impede the
flow of air through the ventilation openings.
9. Heat -
The appliance should be situated away
from heat sources such as radiators, stoves, or
other appliances that produce heat.
10. Power Source -
The appliance should be
connected to a power supply only of the type
described in the operating instructions or as
marked on the appliance.
11. Power-Cord Protection -
Power-supply cords
should be routed so that they are not likely to
be walked on or pinched by items placed upon
or against them, paying particular attention to
cords at plugs, convenience receptacles, and
the point where they exit from the appliance.
12. Cleaning -
The appliance should be cleaned
only as recommended by the manufacturer.
13. Nonuse Periods -
The power cord of the
appliance should be unplugged from the outlet
when left unused for a long period of time.
14. Object and Liquid Entry -
Care should be
taken so that objects do not fall into and liquids
not spilled into the inside of the appliance.
15. Damage Requiring Service -
The appliance
should be serviced by qualified service personnel
when:
a. The power-supply cord or the plug has been
damaged; or
b. Objects have fallen onto, or liquid has been
spilled into the appliance; or
c. The appliance has been exposed to rain; or
d. The appliance does not appear to operate
normally or exhibits a marked change in
performance; or
e. The appliance has been dropped, or the
cabinet damaged.
16. Servicing -
The user should not attempt to
service the appliance beyond those means
described in the operating instructions. All other
servicing should be referred to qualified service
personnel.
17. Grounding or Polarization -
The precautions
that should be taken so that the grounding or
polarization means of an appliance is not
defeated.
The lightning flash with arrowhead symbol,
within an equilateral triangle, is intended to alert
you to the presence of uninsulated “dangerous
voltage” within the product’s enclosure that may
be of sufficient magnitude to constitute a risk of
electric shock to persons.
The exclamation point within an equilateral trian-
gle is intended to alert you to the presence of
important operating and maintenance (servicing)
instructions in the literature accompanying the
appliance.
APPLICABLE FOR USA, CANADA OR WHERE
APPROVED FOR USAGE
CAUTION:
TO PREVENT ELECTRIC SHOCK, MATCH
WIDE BLADE PLUG TO WIDE SLOT, INSERT FULLY.
ATTENTION:
POUR EVITER LES CHOCS ELEC-
TRIQUES, INTRODUIRE LA LAME LA PLUS LARGE DE
LA FICHE DANS LA BORNE CORRESPONDANTE DE
LA PRISE ET POUSSER JUSQU AU FOND.
CAUTION:
To reduce the risk of electric shock, do not remove
cover (or back). No user-serviceable parts inside. Refer servicing
to qualified service personnel.