What Happens When You Set Your Subwoofer Crossover Too High or Too Low?

The crossover setting on your subwoofer determines the point where your main speakers hand off low-frequency duties. Getting it right is crucial for balanced, seamless sound. Set it too high or too low, and you can run into performance issues that affect clarity, bass impact, and overall cohesion.

Setting the Crossover Too High

When the crossover is set too high, typically above 120Hz, it can lead to:

1. Localization Issues
Higher bass frequencies are easier to detect directionally. When your sub plays too high into the frequency range, you may start hearing exactly where it is in the room.

2. Midrange Interference
Your sub might start intruding into midbass or even lower midrange territory, smearing vocals and instruments that belong in the mains. The sound could become boomy or overpowering in these frequencies.

Setting the Crossover Too Low

On the other end, setting the crossover too low, below 60Hz in most setups, can cause:

1. A Gap in the Sound
If your main speakers can't reach deep enough on their own, a low crossover setting can leave a "hole" in the frequency range.

2. Weak or Thin Bass
You might lose weight and fullness in the low end, making the system feel anemic, even if the sub is capable.

3. Overworking the Speakers
Lowering the crossover shifts more of the bass load to your main speakers. If they aren’t built for it, this can affect their clarity and introduce distortion.

The Sweet Spot

In most systems:

• 80Hz is a good starting point for bookshelves and towers.
• For smaller satellites, 100–120Hz may work better.
• For particular recommendations based on products and applications, explore this guide: Recommended Crossover Points