Owner`s manual
14
In some systems (some A/V installations, for example) it is desirable to set a particular input to a 
fixed gain, that is then becomes unaffected by the volume knob. Most often it is required to set the 
preamplifier gain to Unity (Gain of 1). The VK-51SE allows the user to do so by using its FIXED 
gain function. 
Press the Function button six times. 
The display will read: FIX OFF 
Enter any desired number for the fixed gain on the selected input (see below). 
UNITY gain for the VK-51SE preamplifier correspond to the following volume 
setting: 
CNTS display mode    106 Counts 
DBU        00.0dB 
DBM        -17.0dB 
Exit the programming mode by pressing and holding the Function button. 
DISPLAY MODE programming 
The volume display of the VK-51SE can be switched to work in any of the following three modes: 
CNTS:  Relative volume counts with the range of 000 to 140 
DBU:   Decibel readings with respect to unity gain (0dB). 
DBM:  Decibel readings with respect to maximum gain (17dB) 
NOTE: To avoid possible confusion, the SAME display mode setting applies to ALL inputs. 
It is not possible, for example, to set one input to CNTS and another to DBU. 
INPUT NAME programming: 










