SPL Iron V2 Two-Channel Tube Mastering Compressor (Black/Silver) - Manual (Page 21)

21
Control Elements
Tape Roll-Off:
This filter is based on the frequency response of tape machines. It can prove very useful
to provide a nice rounding-off in the high end when the material being processed is too
shrill.
+5
+4
+3
+2
20 50 100 200 500 1k
Hz
2k 5k 10k 20k 50k
+1
0
-1
-2
-3
-4
-5
-6
+6
d
B
u
Tape Roll-off
Bypass:
In the following diagram you can see the frequency response curves for the AirBass and
Tape Roll-Off presets, as well as that of the Bypass switch.
+5
+4
+3
+2
20 50 100 200 500 1k
Hz
2k 5k 10k 20k 50k
+1
0
-1
-2
-3
-4
-5
-6
+6
d
B
u
Off