Use this method to achieve more definition from bass guitars. The same tip can also be used on kick drums.
First, make a duplicate of the bass track. Then process the duplicate track in Pro Tools with the Moogerfooger Lo-Pass plug-in. Next, set the plug-in’s Mix parameter to 10, the Resonance to 1, and the overall Amount to 1.
Turn the frequency control up until you get a well-defined sub-bass tone. Group both bass tracks to a separate bus, and create a new aux track. Be sure to assign the inputs to the same bus. Then, on the original bass track in Pro Tools, use an EQ plug-in, such as the Focusrite EQ, to roll some of the low “subs” out.
Next, blend the original bass track with the Moogerfooger-treated track to create a fat, solid composite bass sound. The aux track will now become the bass master track. Finally, EQ and compress that aux track to fine-tune the bass sound to taste.