YORKVILLE Synergy SA221S, Руководство по обслуживанию

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To get the full Owner’s Manual please visit our website at
http://www.yorkville.com/manuals/ or, if you need a printed version call 905-837-8777
Printed In CANADA
QuickStart-SA221S-00-1v2 • YS#QSTART-SA221S • January 24, 2022
1. Power Switch & Indicator
The green power LED indicates when the
power turned On. When power is turned
off or not available, the indicator will blink
as the power supply discharges. The
circuitry will not reboot unless the power
supply is fully discharged before being
turned back on. Turning the power back
on before the power supply is discharged
will simply resume normal operation.
2. PowerCON TRUE AC Loop Thru
As a standard, the AC inlet on the SA221S accepts locking PowerCON
TRUE power cords. There is also an AC outlet that can be used to loop
power through to other cabinets in your array using a male to female
PowerCON TRUE looping power cord. Check with your local Yorkville
dealer for availability of these accessory cords.
IMPORTANT: DO NOT EXCEED THE CURRENT RATING OF THE
POWER and ACCESSORY CORDS. PLEASE READ THE SECTION
OF THE OWNER’S MANUAL CALLED CASCADE INSTALLATION
3. Input Jack
This female-XLR accepts line level XLR cables. For best noise
reduction use balanced sources.
4. Dual Link Outputs
These XLR connectors can be used with standard XLR cables to daisy-
chain up to 20 SA221S or SA315 cabinets without signal degradation.
Simply loop from one cabinet’s Link jack to the next cabinets Input
jack. In many cases this limit of 20 cabinets can be exceeded, consult
Yorkville Sound for more details.
5. SA221S Level
This control adjusts the volume level of the SA221S relative to the input
signal level and is used to fine tune the cabinet’s volume relative to the
mixer settings. It is perfectly acceptable to set the SA221S Level above
or below the center 0 dB setting.
6. Clip, X-Max, VC-Therm, Activity Indicators
The Clip and Limit LED indicators illuminate to guide the user to
proper operating levels.
Illumination of either yellow Limit LEDs indicate a level has been
reached where the limiters are reducing the signal internally to
prevent damage or distortion. It also indicates that further increases
in input level, or increasing the SA221S
Level control position will not apprecia-
bly increase output.
The red Clip LED indicates that the
input level is excessive and further in-
creases in level will cause severe distor-
tion. The input signal should be reduced
at the source until Clip activity ceases.
7. Average Power Limit
The SA221S can operate on 15 amp 120VAC power sources or 20
amp 120 VAC power sources. The SA221SCE can operates on 16
amp 230VAC power source. Safety regulations limit the power draw on
these circuits to 80% of 20, 16 or 15 amps. The SA221 operates within
these limitations. The stock product limits the current to 12 amps
and when modified by a qualified technician using the SA221KIT will
increase the limit current to 16 amps. Operation when set to 16 amps
requires the appropriate power cord and 20 amp power source.
The average power limit control allows the power to be reduced
to allow operation on limited power availability. Full power transients
will be allowed through but if the average power is excessive then
the power will be limited. In the 16 amp (8 amp CE) position the
average power is limited only by the voice coil temperature. In the
12 amp (6 amp CE) position with most music, the limiter will be only
active occasionally depending on the music content. In the 8 amp (4
amp CE) position certain types of music will not be limited, primarily
music without deep bass or where the bass is unprocessed. The 6
amp (3 amp CE) position will significantly reduce the output when
the music content has continuous bass content below 45 Hz. The
green power on indicator will dim to indicate when the line current
limiter is active.
8. 50 Hz High-Pass Output
The SA221S provides a line level 50 Hz high-pass XLR output intended to
provide the correct equalization, crossover and time alignment to use SA315S
subwoofers along with SA221S subwoofers. This output is not suitable for
any other usage. This output should not be routed to the full range cabinets.
Normally this would be used with the 50 Hz lowpass switch depressed.
9. 100 Hz / 50 Hz Lowpass Switch
This switch allows the SA221S subwoofers to be used with SA315S
subwoofers. Combined with the 50 Hz High-pass output this will ensure
correct crossover and time alignment.