Fredenstein F605 - Manual (Page 3)

Fredenstein F605 Headphone Amplifier
Installation:
Please first power down your Fredenstein Bento rack before inserting the F605. The power
requirements are +/-16V, +/-100mA.
Please be aware, the F605 will not work in any third party enclosures.
The MAIN XLR balanced inputs are located on the rear panel of the Fredenstein Bento rack, the left
channels uses the XLR Main input, the right channel the XLR AUX input .
The balanced monitor outputs are located on the rear panel as well, the left channel is on the MAIN
output XLR, the right channel on the AUX output XLR.
The MAIN input is connected to the MAIN output and the AUX input to the AUX output to allow
the easy connection of other pieces of equipment like monitor controllers or AD converters, etc.
Volume:
Headphone volume control
L<->R:
Flips the channels of the headphones, important to insure well balanced mixes since most peoples
hearing is a little different between the left and right ear.
L CH:
Puts the left channel signal on both sides of the headphones to facilitate listening to single channel
signals.
R CH:
Puts the right channel signal on both sides of the headphones to facilitate listening to single channel
signals.
L CH and R CH:
Switches the amp in mono mode, signals on both sides of the headphones are identical.
L POL:
Flips the polarity of the left channel signal.
R POL:
Flips the polarity of the right channel signal.
By flipping the polarity of one channel and putting the unit in mono mode the so-called Side Signal
is fed to the headphones. The Side Signal is the difference between the two channels (A- B) while
the mono signal is the addition of the two channels (A + B). This is also useful when trying to have
identical levels on two channels. Adjust the level on one channel to the minimum volume since
they will cancel each other when they are exactly the same.
Fredenstein F605 Manual V1.1 July 18, 2014 Page 2