F605 Headphone Amplifier (Can Amp)
F605
Headphone Amplifier
(Can Amp)
Operating Manual
Fredenstein F605 Headphone Amplifier
The F605 is a high performance professional headphone amplifier, offering an effective headphone
volume control for live or studio applications out of a Fredenstein Bento rack. The F605 features
balanced inputs, extended signal manipulation and a low output impedance to connect headphones
from 20 Ohms to 600 Ohms.
As all Fredenstein products, the F605 is designed by a German-American team and manufactured in
Taiwan.
Overview:
LED Indicators:
PWR
CLIP
:
:
A green LED indicates presence of power
A red CLIP indicator turns on at 2db below
clipping output level
Rotary Controls:
Volume
:
Volume control
L<->R
:
L CH
R CH
:
:
L POL
R POL
:
:
flips the channels, left on right ear, right on left
ear
Both sides are reproducing the left channel only
Both sides are reproducing the right channel
only
if L CH and R CH are activated a mono signal is
reproduced on both sides
Selects the phase of the left channel
Selects the phase of the right channel
:
Unbalanced Stereo headphone output (TRS)
Switches:
Connector:
Headphones
Fredenstein F605 Manual V1.1 July 18, 2014 Page 1
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
Fredenstein F605 Headphone Amplifier
Technical Data:
Frequency Response
Distortion
SNR
Input Impedance
Max. Input Level
Output Impedance
Max. Output Level
:
:
:
:
:
:
:
10 Hz – 30,000 Hz, +/- 0.5dB
< 0.01%
< -100 dB
> 40 KOhm
+24dBu
5 Ohms (recommended load > 20 Ohms)
+ 24 dBu
Fredenstein F605 Manual V1.1 July 18, 2014 Page 3
Contact Info:
Fredenstein Professional Audio
by Orion Communication
7F-1, No. 582, Ruei Guang Rd.
Neihu District
Taipei 114
Taiwan
Phone :
Email :
Web :
+ 886-2-2657-2618
info@fredenstein.com
www.fredenstein.com
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