2008 Hummer H2 Speaker Sizes

The 2008 Hummer H2 factory audio system features specific mounting locations for various drivers, where the front door panel and rear door panel accommodate 6.5 inch speakers, the b-pillar supports a 4 inch unit, and the front door panel accepts a 1 inch speaker size. Additional compatibility for a replacement or upgrade includes tweeter, midrange, midbass, full-range, and subwoofer drivers. The rear speaker supports an 8 inch unit.

Specific details regarding locations, speaker sizes, and types are outlined in the compatibility chart.

Speaker Details by Location
Location Size Type Notes
B-Pillar 4 Midrange
  • Complex disassembly required
  • Professional service only
  • Low replacement priority
  • Replacement difficulty: high
Front Door Panel 1 Tweeter
  • Standard installation
  • High replacement priority
  • Replacement difficulty: low
Front Door Panel 6.5 Midbass / Full-Range
  • Standard installation
  • High replacement priority
  • Replacement difficulty: low
Rear 8 Subwoofer
  • Secondary sound location
  • Medium replacement priority
  • Replacement difficulty: medium
Rear Door Panel 6.5 Midbass / Full-Range
  • Standard installation
  • Medium replacement priority
  • Replacement difficulty: low

2008 Hummer H2 Speaker Replacement Summary

5 total positions
3 easy to replace
2 high priority
1 professional only

Replacement difficulty:

Low: 3 Medium: 1 High: 1

Replacement priority:

High: 2 Medium: 2 Low: 1

2008 Hummer H2 Radio Slot Size (DIN)

DIN Type Size (inch) Size (mm) Notes
Single DIN or Double DIN 7"×2" or 7"×4" 180×50 or 180×100 Vehicle supports both radio sizes
  • Always measure the slot before purchasing a new radio
  • Check slot depth - it may vary

Additional Notes

  • The 2008 Hummer H2 audio system incorporates a multi-driver configuration with dedicated frequency ranges, where 1-inch tweeters handle high frequencies, 4-inch midrange drivers reproduce vocal ranges, 6.5-inch components manage mid-bass and full-range reproduction, and an 8-inch subwoofer addresses low-frequency output.
  • Upgrading the front door panel speakers could provide noticeable improvements to overall sound quality, as these locations house both the tweeter and primary 6.5-inch driver that form the main soundstage for front passengers.
  • The B-pillar midrange driver placement suggests a factory design intended to fill the frequency gap between tweeters and larger door speakers, though aftermarket replacement options in this size range may offer enhanced tonal clarity and power handling.
  • Both front and rear door panels share the same 6.5-inch size specification, allowing for consistent speaker selection across all door positions when planning an audio upgrade.
  • The factory 8-inch subwoofer location indicates a dedicated bass reproduction area, though this size sits between typical compact and full-size subwoofers, which may influence replacement options and expected low-frequency extension.
  • Component speaker systems would align well with the factory configuration, as the separate tweeter location in the front door panel already provides dedicated high-frequency positioning independent from the mid-bass driver.
  • The dashboard accepts both single and double DIN head units, providing flexibility for aftermarket stereo upgrades that could drive higher-quality replacement speakers more effectively than the factory radio.