Madrigal Imaging N380S ユーザーズマニュアル

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The 

may be disconnected (or “defeated”) by pressing the 

button of the currently selected (to-be-recorded) input a second time.

Doing so will toggle the 

on and off. The display will alternatively

read the name of the chosen input and 

 as shown below.

Defeating the 

eliminates even the possibility that the input im-

pedance of a recording device could have an effect on the sound quality of the
preamplifier. We recommend that 

be turned 

when not in use.

The 

mode gives you extremely fine control over the relative volumes of

the Left and Right channels, by changing the volume of one relative to the other
in increments of 0.1 dB, up to 20.0 dB. (Beyond this point, the 

control

will mute the output of the reduced channel entirely.) Once set, this inter-channel
difference in volume remains the same regardless of output level and selected
input, until it is changed again in the 

mode, or when AC power is inter-

rupted (in which case the balance is reset to 0.0).

To enter the 

mode from the 

mode, press the 

button

twice (once from the 

mode). When the balance is set to a neutral

position, favoring neither channel over the other, the display will show a double-
headed arrow and “0.0” decibels—that is, that the channels are balanced with re-
spect to one another.

Turning the 

(which serves as a balance control in 

mode) in either

direction will change the balance in that direction. The display will reflect this by
changing to the appropriate single-headed arrow to indicate the direction of
change and by showing the number of decibels by which that channel has been
increased (in tenths of a decibel), as below:

In this example, the right channel is 2.3 decibels louder than the Left.