3-32
7830 Dual input channel
J-Type
Revision J2005-2
61616<
/0)
#
(4
#
¶4·
#
&RQWURO
The ‘Q’ control varies the bandwidth of the EQ section in the range Q=1 to Q=3. A
low value of Q gives a wide bandwidth. This means that a relatively large range of
frequencies (either side of the centre frequency selected by the ‘Frequency’ control)
have boost/cut applied. As the value of Q is increased, the bandwidth is reduced, so
that a very much smaller range of frequencies have boost/cut applied. The position
of the ‘Q’ potentiometer is recorded during a SAVE command.
616173
/0)
#
%RRVW
2
&XW
#
DQG
#
)UHTXHQF\
#
&RQWURO
A dual-concentric potentiometer where the ‘inner’ knob is the ‘Boost/Cut’ control for
the EQ section and the ‘outer’ knob is the ‘Frequency’ potentiometer.
Boost/Cut
±18 dB
Frequency
Variable from 60Hz to 600Hz
The positions of the ‘boost/cut’ and ‘freq’ potentiometers are recorded during a SAVE
command.
616174
/)
#
(4
#
3RW
#
1XOO
#
/('V
Three Null LEDs that illuminate if the position of the ‘Q’, ‘Boost/Cut’ or ‘Frequency’
potentiometers in the LF EQ section are in a position different from that programmed.
Upper LED
“dB”
Null LED for ‘Boost/Cut’ pot
Middle LED
“Q”
Null LED for ‘Q’ pot
Lower LED
“Hz”
Null LED for ‘Frequency’ pot
To recall the programmed position, rotate the appropriate potentiometer until the
LED goes ‘out’.
616175
/)
#
(4
#
¶4·
#
&RQWURO
The ‘Q’ control varies the bandwidth of the EQ section in the range Q=1 to Q=3. A
low value of Q gives a wide bandwidth. This means that a relatively large range of
frequencies (either side of the centre frequency selected by the ‘Frequency’ control)
have boost/cut applied. As the value of Q is increased, the bandwidth is reduced, so
that a very much smaller range of frequencies have boost/cut applied. The position
of the ‘Q’ potentiometer is recorded during a SAVE command.
616176
/)
#
%RRVW
2
&XW
#
DQG
#
)UHTXHQF\
#
&RQWURO
A dual-concentric potentiometer where the ‘inner’ knob is the ‘Boost/Cut’ control for
the EQ section and the ‘outer’ knob is the ‘Frequency’ potentiometer.
Boost/Cut
±18 dB
Frequency
Variable from 20Hz to 200Hz
The positions of the ‘boost/cut’ and ‘freq’ potentiometers are recorded during a SAVE
command.
616177
(4
#
¶,Q
2
2XW·
Press the “EQ IN” button to put the equalizer in the channel signal chain.
Summary of Contents for J-Type
Page 1: ...Audio Mixing Console 056 6 10 n 95 4 1 07 g8 2...
Page 4: ...iv Table of contents J Type Revision J2005 2...
Page 6: ...vi General Precautions Revision J2005 2 J Type...
Page 8: ...viii Introduction J Type Revision J2005 2...
Page 72: ...3 22 7496 Dual Input Channel J Type Revision J2005 2...
Page 86: ...3 36 7830 Dual input channel J Type Revision J2005 2...
Page 96: ...4 10 7925 Programmable Group Module J Type Revision J2005 2...
Page 102: ...4 16 7972 Programmable Aux Groups Module J Type Revision J2005 2...
Page 110: ...4 24 7548 Programmable Routing Slave Mod Mk II J Type Revision J2005 2...
Page 146: ...6 14 7106 Quad Panning module J Type Revision J2005 2...
Page 154: ...7 8 6910 Oscillator PFL Stereo Aux module J Type Revision J2005 2...
Page 188: ...8 16 7956 DC Master Motor fader J Type Revision J2005 2...
Page 200: ...INDEX 4 J Type Revision J2005 2 W Wiring the switches 1 6 X XLR connections APP I...
