Operating the S zone
Using the Ducker
The S zone allows you to set up a sophisticated music and paging system where the background music will auto- matically lower when an announcement is made. This automatic level control is known as Ducking. The S zone’s ducker can operate with either one or two microphones al- lowing two zone paging. Plus, you can even use a line level source to duck another line level source (for example: ap- plications like one CD player audio advert ducking another playing background music).
Setting The DUCK ENABLE switches
The S zone can use either Channel 1, 2 or even Channel 1 and 2 to duck the line inputs connected to channel three and four. You can even set Channel 1 as a Master channel which will duck the line inputs connected to Channel 3 and 4 and the mic and/or line connected to Channel 2. The next section details the operation of the DUCK EN- ABLE switches located on the right side of the S zone’s rear panel.
Channel 1 DUCK ENABLE
When the Channel 1 DUCK ENABLE switch is pressed in, when ever signal is present at the input of Channel 1 the level of the inputs connected to Channel 3 and 4 will automatically be lowered by the amount set by the DUCK TRIM control. Once there is no input present on Channel 1, the level of the inputs connected to Channel 3 and 4 will be returned to their normal level. Therefore, you can con- nect a microphone to Channel 1’s input and a CD player to Channel 3’s input, press the Channel 1 DUCK ENABLE, and whenever you speak into the microphone, the back- ground music will be lowered. When you stop speaking, the background music will returned to the original level. You can set the DUCK ENABLE on Channel 1 individually or together with the Channel 2 DUCK ENABLE if you need to have two microphones ducking the background music.
Channel 2 DUCK ENABLE
When the Channel 2 DUCK ENABLE switch is pressed in, when ever signal is present at the input of Channel 2 the level of the inputs connected to Channel 3 and 4 will automatically be lowered by the amount set by the DUCK TRIM control . Once there is no input present on Channel 2, the level of the inputs connected to Channel 3 and 4 will be returned to their normal level. Therefore, you can con- nect a microphone to Channel 2’s input and a CD player to Channel 3’s input, press the Channel 2 DUCK ENABLE, and whenever you speak into the microphone, the back- ground music will be lowered. When you stop speaking the background music will returned to the original level. You can set the DUCK ENABLE on Channel 2 individually or together with the Channel 1 DUCK ENABLE if you need to have two microphones ducking the background music.
CHANNEL 1 MASTER
If you are using a microphone or line level signal to duck the level of the inputs connected to Channels 2, 3 and 4, you can use the CHANNEL 1 MASTER switch so that Chan- nel 1 will have priority over all the other inputs. With the CHANNEL 1 MASTER selected, when signal is present at the input connected to Channel 1, all other inputs will be lowered by 10dB.
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