Black Rooster Audio SILK EDITION VPRE-73 Installation guide

OVERVIEW & INSTRUCTIONS
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VPRE-73 VINTAGE PRE-AMP
OVERVIEW & INSTRUCTIONS
1
About the VPRE-73 Plug-in
Vintage pre-amp emulation
The VPRE-73 plug-in is inspired by one of the
most classic preamps in professional recording
studio history. While streamlining the original
processor, we did our best to bring you an au-
thentic emulation of the discrete preamp cir-
cuitry and audio transformers, but also retained
the famous high shelf lter band.
The VPRE-73 provides you with the low end
magic, the high end sparkle and just the right
amount of THD required to recreate a unique
and classic vibe.
Plugin Activation & System Requirements
Black Rooster Audio plug-ins are equipped with
a straightforward and easy to use challenge-re-
sponse activation system. We did our best to
make sure our system works well for both online
and oline users. By supporting USB key activa-
tion, mobile use is supported and just as easy as
permanent activation of your computer‘s hard
disk.
For detailed information about the activati-
on process and the current system requirements
of our plug-ins please refer to:
blackroosteraudio.com/faq.html
Key features
Authentic sound
Our real time SPICE type component based cir-
cuit simulation approach allows to authenti-
cally capture the sound and feel of the analog
counterpart in all nuances. Every crucial part of
the circuit, including the input and output au-
dio transformers, the discrete preamp circuit,
as well as the HF shelving lter band have been
faithfully modeled.
SSE2 optimized code
DSP operations are pipe-lined using the SSE2
instruction set. This ensures highest possible
performance operation despite very complex
computations.
Auto-adjusted oversampling for maximum audio
transparency
Aliasing artifacts are eiciently attenuated us-
ing a low latency linear phase Dolph-Chebyshev
poly-phase design. The oversampling is auto
adjusted to your session‘s sample rate to save
valuable CPU power while oering the most
transparent sound possible.
HighDPI / Retina support
All our plug-Ins support high pixel density on
Mac OSX and Windows to bring you the most
enjoyable user experience on high DPI displays.
Please refer to your manual to nd whether your
DAW is HighDPI capable if you‘re working on
Windows.

VPRE-73 VINTAGE PRE-AMP
OVERVIEW & INSTRUCTIONS
2
» HP Button
Depress this button to engage a 12dB/Oct highpass  lter at 80Hz to
remove undesired low frequency content, e.g. rumble or pop noises,
from your signals.
» Phase invert
Use this button to fl ip the polarity of the processor‘s output signal.
» In Button
Engages or bypasses the processing altogether.
» Gain
Controls the virtual preamp gain between +18 and +72dB. While the
knob on the original unit is stepped we went for continuous operation
for better adjustability of the added harmonics. You can drag the
gain knob holding your right instead of your le mouse button and
the trim knob will follow in the opposite direction. This way you can
dial in as much THD as desired without a ecting the volume of your
signals too much.
» Trim
Use this knob to adjust the output gain of the processor in the range
between -30 and +30dB to compensate for any level changes applied
by the preamp section. The trim gain stage is completely linear and
does not add any additional harmonics. You can also drag the trim
knob holding your right instead of your le mouse button and the
gain knob will follow in the opposite direction. This way you can
dial in as much THD as desired without a ecting the volume of your
signals too much.
» HF Gain
The HF gain knob adjusts the high shelving gain applied to your signal
a er the preamp stage. The range is roughly -15 through +15dB.
» Signal LED
The signal LED monitors the VPRE-73‘s output level in di erent levels
of green. It will light up in red once your signal hits the 0dBFS mark.

VPRE-73 VINTAGE PRE-AMP
PREFERENCES & INSTRUCTIONS
3
GUI Size
In the GUI size menu you can select your preferred GUI
scaling from a list of four settings, if the default mode
(Normal) is too big or too small for your taste. Please
note that the GUI size setting is a global preference that
a ects all Black Rooster Audio plug-ins installed on your
system.
Check for updates
Click the Check for updates entry to see if the plug-ins installed on your system are up-to-date. This function
requires internet access.
Knob behaviour & keyboard shortcuts
Use the plug-ins settings menu to select your preferred knob mode globally, i.e. all of our plug-ins share the same
setting among all DAW applications. Choose between „Host Setting“, „Circular“, „Relative Circular“ and „Linear“:
• By default the knob mode is set to „Host Setting“ which means that the knob mode is dictated by the DAW
application. Some VST hosts allow to change the knob mode setting in their preference menu. Our plug-ins
will respect the host knob mode in that setting.
• In the „Circular“ or „Relative Circular“ modes knobs will react to circular mouse gestures and you have to
drag your mouse in clockwise or counter-clockwise direction to change a knob‘s value.
• In the „Linear“ mode you have to drag your mouse up or down when selecting a knob to change its value.
Use the knob sensitivity menu to adjust the knob sensitivity to taste. This function is only available in linear mode.
All of our plugins support the following keyboard shortcuts
AU Hosts on Mac OS
Alt + Click - Reset control to its default value
Shi + Drag - Fine control
Shi + Mousewheel - Fine control
VST Hosts on Mac OS
CMD + Click - Reset control to its default value
Shi + Drag - Fine control (only a applicable in linear knob mode)
Shi + Mousewheel - Fine control
VST Hosts on Windows
Ctrl + Click - Reset control to its default value
Shi + Drag - Fine control (only a applicable in linear knob mode)
Shi + Mousewheel - Fine control