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>If you want to actually hear and feel sub bass frequencies then you’ll need devices capable of reproducing those frequencies. When evaluating monitors we often focus on the mid range articulation, bass punch and top end delivery, with sub bass coming way down the list of importance. However, even nearfield monitors can produce useful amounts of very low frequencies, particularly if they use ported designs. If you’re not sure what yours are capable of, load up an oscillator plugin in your DAW and gradually sweep it downwards from about 80Hz. The level eventually decreases until you can’t hear it at all. If you’re lucky this will be around 40Hz, but it could be much higher.
