Unika UD Series Manual

Also see for UD Series: Manual

UNiKA UD-154 & UD-084 Switching Power AmplifierVOLUME menu: A speaker icon is stayed on theupper left of the display when the content of theVOLUME menu is being browsed. The VOLUMEmenu is where you can tune the channel volumeindividually. Rotate the encoder to browse to differentchannels you wish to tune its volume, and press theENCODER for tuning the volume of the selectedchannel.The VOLUME menu is the default menu when theamplifier starts up. You can always press the BACK button a couple of times to return back to theVOLUME menu when you are lost in menu navigation.NOTE:The speaker icon on the upper left of the display will be replaced with a Dante icon ifyou configure the amplifier to source input from the Dante audio network. Dante audioinput will be described later in the manual.When you browse and roll over the last channel in the VOLUME menu, you are browsingto the FILTER and eXtraTone™ setting items which will be particularly described later inthe manual.As mentioned previously, you can mute all the channels by long pressing the BACK buttonfor more than one second. If all of the channels are already muted, you, in contrast, volumeup all channels to their maximum by long pressing the BACK button.INFO menu: An information icon is stayed on theupper left of the display when the content of INFOmenu is being browsed. The INFO menu is where youcan browse through the device operating informationof the amplifier, including,Model: Model Number of the deviceUID: Unique ID assigned to the deviceSW: Firmware Version in the deviceCompressing: Compressing level on OutputACin@PowerON: AC Voltage at the moment ofpowering onNOTE:A built-in compressor for output is automatically engaged due to high operatingtemperature or low operating voltage.Long time operating the device in high temperature can cause the device to cease operationdue to part failure. The compressor will dynamically compress the audio in the portion ofhigh level when the temperature of any of the monitoring spots in the amplifier is overabout 55℃ in order to reduce the power dissipation and cut heat generation.Low AC voltage can cause audible clips due to insufficiency of rectified and filteredvoltage to drive the output to its nominal maximum. The compressor also compresses theoutput audio in the portion of high level to avoid the audible clip noise when a lowoperating voltage is detected.The Compressing item shows how many dB of output level is compressed due to highoperating temperature or low operating voltage.The operating temperature in many of the monitoring spots in the amplifier can be found onthe TEMP menu described later.The estimated AC voltage at the instant of powering on from the AC outlet is shown on theitem next to Compressing. The AC voltage reading is just for quick reference and is notsupposed to replace the meter that you use to measure AC voltage on a daily basis.Overview Description Getting Started Configuration Filter & eXtraTone Out & In Dante Applications Specifications Warranty