Sound Skulptor EQ573 User manual

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Document revision 1.1 – Last modification : 21/06/15
Sound Skulptor Q573 User manual
Introduction
The Q573 is based on the famous design of the classic 1073 and 1084.
It can be used as a stand alone unit through the lunchbox XLR's or in tandem with the MP573
mic pre, as an insert between the input and output stages, recreating the full architecture of
the 1073. The switching between the two modes is done on the front panel, allowing the use
of both modes.
The Q573 is a three bands parametric Q (High shelf, Mid, Low shelf) and a variable High pass
filter.
The Q573 enhances the possibilities of the 1073/1084 by adding several frequencies and
Q's:
Stand alone installation
Insert the Q573 into a free slot in the lunchbox (or rack). Do not omit the 2 fixing screws on
the module front plate before moving. It is pretty heavy and the weight would put too much
pressure on the back connector.
Installation with a MP573
You need a free slot, next to the MP573.
Remove the jumper from the CN1 connector on the MP573 and plug one end of the link cable
into it.
Connect the other end of the link cable to connector CN2 on the potentiometer PCB of Q573
then insert the Q573 into the lunchbox, making sure the link cable passes above the Q module.
XLR Connections
In the XLR mode, the Q connects to the rear female XLR for input and to the rear male XLR for output.
In the Pre mode, the rear XLR's are simply connected as a pass-through.
The XLR pinout is as follows :
Pin 1 : Ground
Pin 2 : + Signal
Pin 3 : - Signal
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MP573-CN1 Q573-CN2

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Document revision 1.1 – Last modification : 21/06/15
Front panel controls
High shelf Frequency (Top, outer knob)
This is a 6 positions switch that selects the frequency of the high shelf filter: 10kHz, 12kHz,
18kHz, 20kHz, 25kHz. The Off position turns off the high shelf Q.
High shelf Cut and Boost (Top, inner knob)
Continuously variable high shelf cut and boost from -16dB to +16dB.
Mid Frequency (Second down, outer knob)
This is a 12 positions switch that selects the centre frequency of the mid filter: 0.27kHz,
0.36kHz, 0.5kHz, 0.7kHz, 1.1kHz, 1.6kHz, 2.3kHz, 3.2kHz, 4.8kHz, 7.2kHz, 10kHz. The Off
position turns off the Mid Q.
Mid frequency Cut and boost (Second down, inner knob)
Continuously variable mid frequency cut and boost from -18dB to +18dB.
Q Switch (Higher)
In the 73 position, sets the Q of the Mid band Q same as the 1073.
In the centre position, sets the Q same as the 1084 normal.
In the Hi position, sets the Q same as the 1084 High Q.
Low shelf Frequency (Third down, outer knob)
This is a 6 positions switch that selects the frequency of the low shelf filter: 20Hz, 35Hz,
60Hz, 110Hz, 220Hz. The Off position turns off the low shelf Q.
Low shelf Cut and Boost (Third down, inner knob)
Continuously variable low shelf cut and boost from -16dB to +16dB.
XLR/Off/Pre switch (Lower)
This switch is the general bypass switch for the whole Q.
In the Off position, the Q is bypassed.
In the XLR position, the Q is inserted between the input and output XLR's.
In the Pre position, the Q is inserted before the output stage of the MP573, if installed.
High Pass filter (Bottom)
This switch sets the corner frequency of the 18dB high pass filter: 25Hz, 45Hz, 70Hz,
160Hz, 360Hz.
Copyright ©2011 to today SoundSkulptor