7
SB8A/SB10A U
S e r
G
U i d e
The SB8A/SB10A contains a universal power factor corrected (PFC) switch-
mode power supply which operates on a voltage range of 100-240V AC, 50-
60Hz.
The SB8A/SB10A contains hazardous internal voltages. Do not open the amplifier
enclosure – risk of electric shock.
No user serviceable parts inside. Refer servicing to qualified personnel.
The SB8A/SB10A is a Class I appliance and MUST be connected with a three-
wire cable to a mains outlet with a safety earth connection.
THE EARTH WIRE SHOULD NOT BE DISCONNECTED UNDER ANY
CIRCUMSTANCE.
IEC C13 mains cables are readily available worldwide.
For reference, the mains wiring in EU countries is:
Earth:
Green and Yellow
Neutral:
Blue
Live:
Brown
The mains inlet contains a user-replaceable fuse.
For continued protection against fire, only replace the fuse with the same type and
rating: T3AL 250V (5x20mm glass)
1.5 Electrical considerations
1.6 Mechanical & thermal
NEVER under any circumstance replace the fuse with a higher rating. Risk of fire
and damage to the equipment.
Repeated fuse blowing indicates a fault and the amplifier must be returned to
Funktion-One for service.
ENSURE THERE IS ADEQUATE VENTILATION
The amplifier enclosure is convection cooled therefore care must be taken to
ensure that sufficient volumes of air can flow across and through the amplifier.
This is usually accomplished by ensuring vents are not blocked and at least 100mm
(4’’) of free space from the rear panel of the amplifier module, and 150mm (6”)
above the cabinet.
If airflow is impeded, the amplifier will overheat and enter thermal protect mode
(fault LED solid red).
4Ω loads on the satellite outputs will significantly increase the thermal dissipation,
and forced air cooling may be required to sustain full output in high ambient
temperatures.
The amplifier is designed to be permanently fixed inside the loudspeaker cabinet
and should not be operated outside of the cabinet.
1.8 Safety symbols
The triangle with the lightning bolt is used to alert the
user to risk of electric shock.
The triangle with the exclamation mark is used to
alert the user to important operating or maintenance
instructions,
1.7 Volume warning
The SB8A/SB10A is capable of producing high sound levels that can damage your
hearing over time. Care should be taken to manage your noise exposure levels.
1.9 FCC compliance
These limits are designed to provide reasonable protection against harmful
interference in a residential installation. This equipment generates, uses and can
radiate radio frequency energy and, if not installed and used accordance with the
instructions, may cause interference to radio communications. However, there is
no guarantee that interference will not occur in a particular installation.
If this equipment does cause harmful interference to radio or television reception,
which can be determined by turning the equipment off and on, the user is
encouraged to try to correct the interference by one or more of the following
measures:
• Reorient or relocate the receiving antenna.
• Increase the separation between the equipment and receiver.
• Connect the equipment into an outlet on a circuit different from that to which the
receiver is connected.
• Consult your dealer or an experienced audio visual technician for help.
This equipment has been tested and found to comply with the limits
for a Class B digital device, pursuant to Part 15 of the FCC Rules.
Summary of Contents for SB10A
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