YORKVILLE YSM1P Owner's Manual

Contents

YORKVILLE YSM1P Owner's Manual Manual pdf 5 page image

YSM1 P3Input ConnectionThe input, located on the bottom part of the chassis, accepts line-level signal only (notspeaker level). It is recommended to use balanced, shielded cables with ¼ inch (T.R.S.) orXLR connectors (unbalanced ¼ inch jacks can be used). Each YSMp should be connectedto a single line-level source; e.g., the Right or Left line output from a mixer or preamp. If youwant to use multiple YSMps, they can be interconnected using “Y” adaptors.Input Trim ControlThe Input Trim control allows you to adjust the sensitivity of the input circuit. Control range is–6 dB to + 9 dB. Adjust accordingly until the desired sound level is achieved (a normal settingwould be 0 dB). If clipping is indicated (see Clip LED), reduce the Input Trim level. If more con-trol is needed, adjust your line level from the source.Hi Frequency Reflection Optimization DIP SwitchesWalls, ceilings and furnishings reflect high frequencies, thisaffects the listening environment. For most room acous-tics set the lower two DIP switches to the “Normal Room”[B] configuration (settings are shown on the back-panel.Otherwise select one of the other two settings to reach thedesired response within the environment.Low Frequency Efficiency Factor DIP SwitchesDue to the long wavelengths of low frequencies, a woof-er’s acoustic efficiency is affected by its location within theroom, relative to the walls. The diagrams shown on the YSMprear control panel depict three typical speaker/room placements referred to as “Full, ½ and ¼Space.” Set the upper two DIP switches in accordance with the cabinet’s placement; Full Space,½ Space or ¼ Space (corner placement). /2 Space [E] is considered default.Power SwitchThe 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, indicateswhen the outputs of the internal amplifiers are close to clipping. To maintain ideal perfor-mance, adjust the YSMp’s Input Trim (or the output level on your mixer or preamplifier) untilthe Clip LED stops flickering. Engaging the Clip Limiter (see Limiter Pushbutton) will helpavoid distortion on peaks.Limiter PushbuttonThe Limiter pushbutton enables the onboard Clip limiter. Set to the IN position, the internal ClipLimiter is activated. This feature is used to help limit distortion when the amplifier is driven to fullpower. The red Clip LED, located on the front of the cabinet, indicates the Limiter’s threshold.BiamplificationThe YSMp uses two amplifiers, one for the tweeter and one for the woofer. The commonterm is biamplification, a process which utilizes an electronically active crossover network.This type of crossover network divides the signal much more precise than traditional pas-sive crossover networks.Amplifier Thermal Protection and LimitingPlease ensure that there is adequate space provided around the rear of the speaker cabinet.Allowing good ventilation to prevent the amplifier from overheating will help prevent the unitfrom shutting down.NOTE: Both of the internal amplifiers are thermally protected, should the back be covered, preventingadequate heat dissipation (or should some other condition lead to overheating), the amplifiers will shutdown. The amplifiers should reset automatically after a few minutes. This feature should only engageunder 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 clipping.Should the amplifier sense that either condition exists, limiters will begin to reduce the overall output untilmore ideal conditions are met. To ensure full-time driver protection (when the Clip limiter is disabled) theinternal limiters will remain on. If the Clip LED becomes active, reduce the Trim Level on the YSM1p, thepreamp, or mixer output level to maintain normal operation.YSMp configuration options