Power Switch - YORKVILLE ysm1p Owner's Manual

Power Switch

The power switch is located at the bottom of the rear panel near the AC cord.
Blue Power LED (blue)
When the LED marked PWR is illuminated, the unit is turned on.
Clip LED (red)
The red clip LED, located on the front of the cabinet beside the Blue Power LED, indi-
cates when the outputs of the internal amplifiers are close to clipping. To maintain ideal
performance, adjust the YSM1p Series 2's Input Trim (or the output level on your mixer
or preamplifier) until the Clip LED stops flickering. Engaging the Clip Limiter (see Limiter
Pushbutton) will help avoid distortion on peaks.
Limiter Pushbutton
The Limiter pushbutton enables the onboard Clip limiter. Set to the IN position, the
internal Clip Limiter is activated. This feature is used to help limit distortion when the
amplifier is driven to full power. The red Clip LED, located on the front of the cabinet,
indicates the Limiter's threshold.
Biamplification
The YSM1p Series 2 uses two amplifiers, one for the tweeter and one for the woofer.
The common term is biamplification, a process which utilizes an electronically active
crossover network. This type of crossover network divides the signal much more pre-
cise than traditional passive crossover networks.
Amplifier Thermal Protection and Limiting
Please ensure that there is adequate space provided around the rear of the speaker cab-
inet. Allowing good ventilation to prevent the amplifier from overheating will help prevent
the unit from shutting down.
NOTE: Both of the internal amplifiers are thermally protected, should the back be covered, preventing
adequate heat dissipation (or should some other condition lead to overheating), the amplifiers will shut
down. The amplifiers should reset automatically after a few minutes. This feature should only engage
under severe overheating conditions, proper measures should be taken to permit adequate cooling.
TECH: The woofer and tweeter are protected against sustained overdriving (e.g., feedback) and clip-
ping. Should the amplifier sense that either condition exists, limiters will begin to reduce the overall
output until more ideal conditions are met. When the limiter switch is in the 'out' (disabled) posi-
tion, the loudspeaker's woofer and tweeter will still be protected from audio signals. If the Clip LED
becomes active, reduce the Trim Level on the YSM1p Series 2, the preamp, or mixer output level to
maintain normal operation.
YSM1
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