Solid State Logic X-Logic Series owner manual LMF Band controls, LF Band controls, B-4

X-Rack Owner’s Manual

LMF Band controls:
Frequency	Variable from 200Hz to 2.5kHz
Gain	Variable by > ±20dB
‘Q’	Variable from 0.5 to 2.5 (may also vary with gain)
LF Band controls:
Frequency	Variable from 40Hz to 600Hz
Gain	Variable between ±16.5dB
‘Q’	2.5 (on ‘ ’ setting)

The LF and HF bands have variable turnover frequency with switchable bell/shelving and selectable response curves:

•Normal (‘E type’) curves with the ‘G-EQ’ switch OUT follow conventional cut or boost characteristics.

•‘G type’ curves with the ‘G-EQ’ switch IN, have a modified slope with a degree of overshoot/undershoot for increased selectivity.

Channel Equaliser Curves Amplitude (dBr) v Frequency (Hz)

25.0

20.0’E type’

15.0 ’G type"

10.0

5.0

0.0

-5.0

-10.0

-15.0

-20.0

-25.0

20 100 1k 10k 100k

The two parametric bands have selectable characteristics which affect the relationship between frequency bandwidth and gain:

•With the ‘G-EQ’ switch OUT, the frequency bandwidth is constant at all gains.

•With the ‘G-EQ’ switch IN, the frequency bandwidth reduces with increased gain, thereby increasing the selectivity of the EQ as the gain is increased.

•At full boost or cut both are identical.

Channel Equaliser Curves Amplitude (dBr) v Frequency (Hz)

25.0
20.0	’E type’
15.0	’G type’
10.0	Both
5.0
0.0
-5.0
-10.0
-15.0
-20.0
-25.0
10	100	1k	10k	20k

Page B-4