Technical information
McDSP plug-ins
The 6030 Ultimate Compressor incorporates ten di erent McDSP-designed
compressor modules. Some of these are entirely original designs while others
are emulations of existing gear with unique variations created by McDSP.
The Module Selector buttons on the left hand side of the screen let you select each
di erent compression algorithm and its interface – which then appears in the
Module Section on the right hand side of the screen. These compression ‘modules’
are swapped in and out immediately, that is, in real time, and the Module Selector
control can be automated. This makes it extremely easy to apply di erent types of
compression to di erent sections of the audio that you are compressing.
In the centrally located Output section, there are input and output meters, a
makeup-gain control to set the desired Output level, a Key button that lets you
route either the side-chain input or the regular input to the compressor, and a
Listen button to let you audition the signal that is causing the compressor to
compress.
The Modules
The U670 module is a variation of a Fairchild 670, with slightly faster signal
tracking to accommodate modern production styles, and yet still imparts
‘warmth’ into the audio output.
The Moo tube is an all-tube design that handles audio gently. Mid-range
sensitivity has been modi ed by McDSP, attack and recovery times are gentle
yet usable for many applications, and the output frequency response is
variable based on the amount of compression.
The iComp is an original McDSP design that only has a threshold and ratio
control. The attack and release are automatically adjusted as you adjust the
other two controls.
The Opto-C and Opto-L models use an electro-optical attenuation circuit
model for compression (Opto-C) and limiting (Opto-L). Both modules are
based on vintage designs but have McDSP-designed key circuits.
The British-C model is modelled after the Neve 3609 and has the four main
controls for threshold, ratio, attack, and recovery. McDSP’s improved design
helps to prevent unwanted distortion, even at extreme compression settings,
that is, with low threshold, fast attack, and release settings.
The dbx-style Over EZ module incorporates a smooth knee response with a
exible control con guration including user-selectable threshold, ratio, attack,
and release.










