Definition

Input sensitivity refers to the signal level required for a device to reach its nominal output level. In simpler terms: how much input signal does your speaker or subwoofer need to play at a given volume? This is published in any Kali product users guide on the Spec Sheet. 


Input Sensitivity and Your Kali Setup


Input sensitivity directly affects how your monitors and subwoofer respond to the output of your audio interface or monitor controller. In practice:


  • Higher sensitivity = louder output from a weaker input signal

  • Lower sensitivity = hotter signal needed to reach the same volume


This can become noticeable in mixed-brand setups. Say, a pair of Kali mains paired with a non-Kali sub, or an A/B monitor combo; if one speaker is consistently louder than the other at the same gain setting, sensitivity mismatch is usually the culprit.


The fix is straightforward: trim the more sensitive speaker down, boost the less sensitive one, and meet in the middle. Most monitors and subs give you enough range on the Input Gain knob to dial this in without breaking a sweat.


When it Comes to Subwoofers…


This can come up when matching a sub from brand A with mains from brand B: fundamentally, a well-integrated sub should not draw attention to itself. It should just sound like your mains are effortlessly reaching down into the ~20Hz range. If you find yourself thinking "I can really hear the sub," it's either too loud, crossed over incorrectly (we recommend 80Hz for Kali mains), or maybe both. Dial it back until it disappears, then bring it up just slightly. Without getting too technical about it, this is where a familiar reference track comes in handy! 


Taking Input Sensitivity Further


If you're running a mixed speaker setup and the Input Gain knob alone isn't giving you enough control, it might be time to look at outboard gear. A monitor controller with per-channel gain adjustment, or an external crossover that manages its own frequency splits, can give you a level of precision that's hard to achieve otherwise. Worth exploring if your studio is growing into something more complex!