LOW SHELF +20 WIDE BW
LOW SHELF +20 MED BW
LOW SHELF -20 MED BW
LOW SHELF -20 WIDE BW
LOW SHELF +20 WIDE BW
LOW SHELF +20 NARROW BW
LOW SHELF -20 NARROW BW
LOW SHELF -20 WIDE BW
NOTICE THIS 8 dB BOOST AT 100 Hz
WHILE SHELF CUTTING 100 Hz
AND NOTICE THIS 8 dB DIP
WHILE SHELF BOOSTING
THE HALF WAY (10 dB) POINT
HAS SHIFTED TO 50 Hz
THESE CURVES SHOW ONE OF THE IDEOSYNCRACIES
AND IT IS POSSIBLE FOR A LF BOOST TO SOUND AS IF IT HAS LESS LOWS
DEPENDING ON THE FREQUENCY AND INSTRUMENT.
SIMILAR CURVES APPLY TO THE HIGH SHELVES AND
PARTICULARLY 10K AND 12K CAN BE STRANGE WHEN THE BW IS NARROW
THIS IS ABOUT +1.5 DB
AT 300 Hz AND NEGLIGIBLE
MORE 100Hz SHELVES SHOWING
BOOST AND CUT WITH VARIOUS BANDWIDTHS
15
50 100
SPICE SIMULATION CURVES
