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Pair of round light-grey foam speaker baffles, 4.6 in diameter, 2.0 in deep

The Install Bay

The Install Bay IBBAF42 4" Round Foam Speaker Baffle Pair

SKU CH-ZZJ2-RN1EF

Lightweight foam baffles fit 4" speakers, compress for a tight acoustic seal, reduce panel vibration and can be trimmed for improved bass response

  • TypeSpeaker Baffles
  • Fits 4" speakers with 4.6 in outer diameter
  • Lightweight waterproof foam compresses for a tight acoustic seal
  • Reduces panel vibration for clearer sound reproduction
  • 25 in max mounting depth suits shallow door cavities
  • Pair can be trimmed to tune bass response

4" Foam Speaker Baffles for Car Audio

These baffles are designed for 4-inch round speakers in automotive installations. They suit installers who want to seal the speaker opening and reduce panel vibration. The lightweight foam compresses to fit irregular mounting surfaces. A pair is included for stereo or front-and-rear setups.

Waterproof Foam Build with 3.25" Mounting Depth

The waterproof foam material resists moisture inside door cavities and rear decks. Each baffle has a 4-inch inner diameter and a maximum mounting depth of 3.25 inches. The foam can be trimmed with a knife to tune bass response or clear obstructions. Dimensions are 118 mm wide, 118 mm long and 50 mm deep.

Upgrade from Bare-Mount or Cardboard Rings

These replace bare speaker mounts or flimsy cardboard rings that leak air and rattle. The acoustic seal tightens mid-bass and cuts door-panel buzz. The jump is worth it when speakers sound thin or vibrate the trim at volume. Not for builders who need rigid MDF enclosures or deeper mounting clearance.

Highlights

  • Fits 4" speakers with 4.6 in outer diameter
  • Lightweight waterproof foam compresses for a tight acoustic seal
  • Reduces panel vibration for clearer sound reproduction
  • 25 in max mounting depth suits shallow door cavities
  • Pair can be trimmed to tune bass response

Specifications

TypeSpeaker Baffles

Questions about this item

What speaker diameter does the 4" inner diameter of the IBBAF42 baffle pair match?

The baffles have a 4" inner diameter designed for 4-inch round car audio speakers, sold as a pair.

What is the 3.25" maximum mounting depth and how does it affect installation?

The foam compresses to a 3.25" maximum mounting depth, forming to fit shallow door cavities or tight kick-panel spaces.

How are the baffles installed and what step is often missed when cutting for bass?

Mount the speaker to the baffle first, then secure the assembly; if cutting the foam for bass response, cut only the rear section to keep the front seal intact.

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