You seem to confuse what a shelving filter is. A shelving filter in posihfopit or nyquist EQ is just that, a shelf. It usually lowers a signal a maximum of 18 or 24dB depending on the eq. A filter can lower the volume much more than that. What you actually described here is a Lowcut (highpass) filter, not a shelf.wm wrote: why is a steep 12/24/36/48db.oct shelf no good? thought that was basically the same as a filter, except you are not limited to a filters bandwidth. with SXs Q (about 12/18db/oct) and a removal of sub at about 150hz, it looks like it can cut off down to -80db or so @5hz, similar thing with waves ren i find too. havent noticed any weird phasing like people often mention in regard to filters either, although a few things make me suspicious.
What you described is EXACTLY what one needs which is why nyquist eq nor posihfopit can do it (AFAIK neither allows a lowcut or highcut filter, just shelves).
- bManic
