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Why does my audio sound muddy or bass-heavy out of the box?

Published: January 20th, 2026
1 min read
Bose QuietComfort Ultra Bluetooth Headphones (2nd Gen), Wireless Headphones with Sp...
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The bass-heavy sound is intentional and commonly noted by reviewers—but it's easily corrected.

Why It Sounds This Way

Bose uses "consumer-friendly" tuning designed for retail demos:

| Frequency Range | Tuning | |-----------------|--------| | Bass | +3-6dB emphasis (the issue) | | Mids | Recessed | | Treble | Bright |

This impresses during brief store demos but causes muddy, congested sound with vocal-heavy music, podcasts, and acoustic content.

The Quick Fix

Bose Music app → Settings → Sound → Equalizer

| Adjustment | Setting | |------------|---------| | Bass | -2 to -3 dB | | Mids | 0 or +1 dB | | Treble | Neutral |

This simple change transforms the sound from boomy to clear. Multiple reviewers describe it as "night and day."

Also Check These

Seal Quality: Gaps between earcups and your head (common with glasses) affect bass response. Ensure full, even contact.

CustomTune Calibration: Remove and replace headphones to trigger fresh calibration—suboptimal calibration affects frequency balance.

Immersive Audio: Toggle off temporarily. Spatial processing can affect perceived bass on some content.

2nd Gen Improvement

The 2nd Gen has better tuning than the original:

  • Improved midrange presence
  • Less treble harshness (1st Gen had a peak around 8kHz)

However, the bass emphasis remains. Most users still benefit from EQ adjustment regardless of generation.

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How we researched this

Where this comes from: this answer draws on the product's published specifications and the reviews ShopSavvy collected for it, alongside prices from ShopSavvy's price data.

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