Unboom

Small, untreated rooms make a few bass notes ring far louder than the rest. Your monitors aren't the problem. Your room is.

Unboom finds the frequency your room exaggerates and gently turns just that part down. Sit where you normally listen and let Unboom scan with your Mac's microphone, or play through quiet test tones and tap "That's the boom" by ear. Fine-tune without typing a single frequency, pick Gentle, Medium, or Strong, and flip Correction On and Off to hear the difference.

After setup, Unboom lives in the menu bar and corrects all Mac audio on your calibrated speakers. Each room remembers its speakers, and headphones are left alone.

It only cuts, never boosts. Nothing is saved or sent. Free download with a 14-day trial, then a one-time unlock. No subscription.