Revel LFO - Manual (Page 21)

21 LFO Programming Software
User Guide
Equalizing Your Subwoofer
We encourage you to experiment and become familiar with how the LFO software's EQ controls operate. You can't hurt anything while making EQ
adjustments, so feel free to try different fi lter combinations even if at fi rst they may seem counter-intuitive.
Note that you will mostly be using PEQ (parametric equalization) fi lters to equalize the subwoofer's frequency response. The broad effect of shelving fi lters
is useful only in certain circumstances.
Your fi rst priority should be using EQ to reduce higher-amplitude response peaks that are wide. Very narrow peaks and dips in response are much less
audible and can be dealt with after you've fi xed the larger ones (or not at all).
1. Make your Target Response and Measured Response curves visible. Examine how they compare. Take special note of any broad areas where the two
curves diverge.
Broad Areas of
Divergence
2. Find a broad, high-amplitude peak in the subwoofer's response and use the EQ1 fi lter's EQ frequency selector to select an EQ frequency that is near the
center of the peak. (The frequency doesn't have to be exact – you can fi ne-tune it later in the process.).
3. Select the EQ1 fi lter's EQ level control and use the down arrow button to reduce the response by –6dB to – 8dB.
4. Note the effect this has on the subwoofer's Measured Response curve. Adjust the EQ1 fi lter's frequency, level and Q/BW controls as necessary to bring
that part of the Measured Response curve as close as possible to that part of the Target Response curve. (see example below)
Area Improved
by EQ1 Filter
EQ1 Filter