Fredenstein F610 UE-1 User manual

F610
Universal Entzerrer
UE-1
Operating Manual

Fredenstein F610 Universal Entzerrer UE-1
The Fredenstein F610 Universal Entzerrer UE-1 is a digital controlled stereo analog quad band
equalizer and 30 band spectrum analyzer in a double ide 500 series cassette.
For the first time in a 500 series module, e ere able to implement a high resolution 3.5” LCD
color display including a capacitive touch controller, thus elcoming the 500 Series to the 21st
century.
The four filters are all identical and each can be tuned from 20 Hz to 20 KHz. The encoder rotary
frequency knob allo s access to about 190 different frequencies per filter, hile the USB interface
allo s for 1 Hz frequency resolution. The maximum filter gain is +/- 16 dB. In case more gain is
needed, additional filters can be set at the same frequency for a ridiculous up to 64 dB boost or cut.
The Q-factor of each filter can be varied from 0.4 to 7.9. The gain can be adjusted from -16 dB to
+16 dB in 0.25 dB steps, clearly fulfilling the demands of modern sophisticated mastering. The
Filter 1 characteristic can be changed from band-pass to lo -shelf and Filter 4 to high-shelf.
In addition, a variable 2nd order lo -cut filter ith a range from 20 Hz to 975 Hz is provided as ell
as a “Color” function giving a tube-like sound. The hard bypass allo s for quick evaluation of the
eq'ed results.
The 30-band spectrum analyzer features a 60 dB dynamic range ith select-able sensitivity from +6
dBu to + 24 dBu in 6 dB steps. The choice to feed either the input or the output signal to the
analyzer adds to the versatility of the F610.
Up to 99 complete settings can be stored in the internal non-volatile memory and a Micro-USB
interface provides complete control from a connected host computer via RS232 over USB.
The F610 UE-1 name is an homage to the classic K&H UE-100. “Entzerrer” is the German
technical term for equalizer.
Installation:
First, please power down your rac or box before inserting the F610 . The power
requirements are maximum +/-16V, +/-400mA. In case you don't use a Fredenstein Bento
6(D)S or Bento 10 (D)S, please ma e sure your box or rac can support the current. Bento 2 is
not compatible with the F610. Please consult your third party documentation in case of any
doubt. Don't forget to fasten the F610 securely to the rac with 4 rac screws.
The operating temperature of the F610 should stay belo 60C / 140F. The temperature can the
displayed through the menu system (see Setup Menu section, page ). In case the temperature
reaches 60C /140F, please try to increase the airflo of your rack. A fan ill kick in at 60C / 140F
to prevent overheating.
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Fredenstein F610 Universal Entzerrer UE-1
Front View
The user interface of the F610 UE-1 consists of a 3.5 inch TFT LCD touch screen ith a resolution
of 320 by 480 pixels. The touch screen is capacitive for superior precision and responsiveness.
In addition, three rotary encoder for gain, Q-factor, and filter frequencies provide a traditional user
interface for the most important parameters.
The Micro-USB connector is located at the lo er right side of the LCD.
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Fredenstein F610 Universal Entzerrer UE-1
Equalizer Screen
After booting, the main equalizer screen is displayed:
In the upper part of the screen, the frequency response of the F610 is plotted. Please note: the
vertical axis automatically re-scales to up to +/- 64 dB. Touching the screen in the graph area
s itches to the spectrum analyzer mode (see details in the analyzer section of this manual, page 7).
The horizontal frequency axis is displayed on a logarithmic scale.
Bet een the graph area and the touch fields, the current status of all four filters is displayed.
For easy differentiation bet een the filters, they are color-coded. The center or shelving frequencies
are marked ith dots and the lo -cut filter is marked by a small triangle. Please note that shelving
filter frequencies are defined at -3 dB from the shelving plateau, the lo -cut filter cut-off frequency
is at -3 dB from the pass band.
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Fredenstein F610 Universal Entzerrer UE-1
In the lo er part of the screen, there are ten touch fields:
LC: First touch to select the lo -cut filter, second touch to toggle the lo -cut functionality on or
off. If the lo -cut filter is enabled, the lo er third of the LC touch field is yello and states the
lo -cut frequency. The frequency can then be varied from 20 Hz to 975 Hz by he rightmost knob,
just belo the screen, labeled “FREQ” .
F1: First touch to select Filter 1, second touch to toggle the lo -shelf functionality on or off.
If the lo -shelf filter is enabled, the lo er third of the F1 touch field is yello and states “LoS”
(Lo -Shelf). In regular band-pass filter mode, the gain, q-factor and frequency can the varied ith
the three knobs belo the display, from left to right: Gain, Q-factor, and Frequency. In shelving
mode the Q-factor control is disabled.
F2: Touch to select Filter 2. Filter 2 is al ays a band-pass filter. When the F2 touch field is lit,
the three control knobs belo the display can be used to change the parameters
F3: Touch to select Filter 3. Filter 3 is al ays a band-pass filter. When the F3 touch field is lit,
the three control knobs belo the display can be used to change the parameters
F4: First touch to select Filter 4, second touch to toggle the high-shelf functionality on or off.
If the high-shelf filter is enabled, the lo er third of the F4 touch field is yello and states “HiS”
(High-Shelf). In regular band-pass filter mode, the gain, Q-factor and frequency can the varied ith
the three knobs belo the display. In shelving mode the Q-factor control is disabled.
L: Touch to select the left channel and enable the t o channel mode. In t o channel mode
the F610 allo s for different parameters in the left and right channels. When the L touch field is lit,
the three control knobs belo the display can be used to change the parameters of the selected filter
of the left channel.
R: Touch to select the right channel and enable the t o channel mode. In t o channel mode
the F610 allo s for different parameters in the left and right channels. When the R touch field is lit,
the three control knobs belo the display can be used to change the parameters of the selected filter
of the right channel.
ST: Touch to select the Stereo mode. In the Stereo channel mode the parameters of the left and
right channels are identical. When the ST touch field is lit,
the three control knobs belo the display can be used to change the parameters of the selected filter
of the Stereo channel. The Stereo channel is a virtual third channel and does not change the
parameters of the L or R channel.
Col: Touch to toggle the “Color” function. When the Col touch field is lit, the color function is
enabled. Color produces a tube like sound, more mello and smooth ithout changing the
frequency response by adding harmonics to the spectrum.
On / Off: Toggles the hard bypass functionality. If ON is displayed inside the touch field, the
corresponding channel (L, R, or ST) is activated, if OFF is displayed, the hard bypass mode is
selected. This allo s for quick comparisons of the source signal and the eq'ed result.
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Fredenstein F610 Universal Entzerrer UE-1
To improve the ergonomics of the UE-1, gain and Q-factor stepping functions are implemented.
By pushing the gain knob, the gain changes to 0dB and each further push ill change the gain by
3 dB, the same is true for the Q-factor knob, the Q-factor ill change by a medium value.
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Fredenstein F610 Universal Entzerrer UE-1
Spectrum Analyzer Screen
After touching the graph area in the Equalizer Screen the Analyzer Screen is displayed:
Up to three different curves ill be displayed according to the channel and MAX settings.
The green curve represents the left channel, the red curve the right channel, and the blue curve the
maximum levels.
The touch fields belo the graph area are:
IP: Selects the input signal(s) to be fed to the analyzer
OP: Selects the output signal(s) to be fed to the analyzer
MAX: toggles the MAX function, hich sho s the blue curve of the highest value for each
frequency band and, if MAX is on, the RST and DCY touch fields are displayed
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Fredenstein F610 Universal Entzerrer UE-1
RST: Only available, if MAX is active, RST resets the maximum curve.
DCY: Only available, if MAX is active. By repetitively touching DCY, four decay modes
for the maximum curve can by selected. DCY 0, disables decay until the user
touches RST, useful for determining maximum levels over the duration of a
song/take. DCY 1 to DCY 3 offer three different time constants for the decay
ith DCY 3 being the fastest.
L: Displays only the green left channel curve, the MAX function ill also only be fed
by the left channel. This is independent of the channel setting in the equalizer screen.
R: Displays only the red right channel curve, the MAX function ill also only be fed by
the right channel. This is independent of the channel setting in the equalizer screen.
L&R: Displays both the left and right channels , the MAX function ill also be fed by both
channels. This is independent of the channel setting in the equalizer screen.
RNG: By repetitively touching RNG, four display ranges can the selected from +6db to
+24dB in 6 dB steps depending on your program level.
On/Off: Toggles the hard bypass functionality. If ON is displayed inside the touch field, the
corresponding channel activated, if OFF is displayed, the hard bypass mode is
selected. This is dependent on the channel setting in the equalizer screen.
.
After touching the graph area on the Analyzer Screen, the Equalizer Screen is displayed:
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Fredenstein F610 Universal Entzerrer UE-1
Menu Subsystem
After pushing the rightmost frequency knob the Menu Subsystem is displayed:
Channel: Touch the “Channel” field to access the channel copy functions
Memory: Touch the “Memory” field to access the non-volatile memory
Setup: Touch the “Setup” field to access Brightness, Auto-Dim and Temperature settings
Exit: Touch the “Exit” field to get back to the equalizer screen
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Fredenstein F610 Universal Entzerrer UE-1
Channel Menu
This menu allo s for copying of channel settings. First select a source channel on the left side and
then a destination channel on the right. The Def channel is a user defined channel setting, i.e. your
favorite starting point for equalization. It must be stored first, the factory default sets all filters to 0
dB gain.
One application for the channel copy feature is orking on a mix. First, set the F610 to ST channel
on the equalizer screen and adjust the settings for optimum results. Then copy the ST in the menu
above to the L and R channels, s itch back to the equalizer screen and select L or R channel, hich
allo s you to t eak the channels separately.
Touching the “Exit” field brings you back to the main menu.
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