2017 BMW 535i GT Speaker Sizes

The speaker size chart for the 2017 BMW 535i GT provides factory specifications for replacement or aftermarket upgrade purposes. Available data includes speaker locations throughout the audio system: C-pillar, center dash, front door panel, rear door panel, and below seats. Information covers factory-installed speaker specifications at each position to assist with aftermarket component installations.

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Speaker Details by Location
Location	Size	Type	Notes
Below Seats	8	Subwoofer	Very limited height clearance Medium replacement priority Replacement difficulty: medium
C-Pillar	1	Tweeter	Complex interior disassembly Professional installation recommended Low replacement priority Replacement difficulty: high
C-Pillar	4	Midrange	Complex interior disassembly Professional installation recommended Low replacement priority Replacement difficulty: high
Center Dash	1	Tweeter	Requires dashboard disassembly Medium replacement priority Replacement difficulty: medium
Center Dash	4	Midrange	Requires dashboard disassembly Medium replacement priority Replacement difficulty: medium
Front Door Panel	1	Tweeter	Standard installation High replacement priority Replacement difficulty: low
Front Door Panel	4	Midrange	Standard installation High replacement priority Replacement difficulty: low
Rear Door Panel	1	Tweeter	Standard installation Medium replacement priority Replacement difficulty: low
Rear Door Panel	4	Midrange	Standard installation Medium replacement priority Replacement difficulty: low

2017 BMW 535i GT Speaker Replacement Summary

9 total positions

4 easy to replace

2 high priority

2 professional only

Replacement difficulty:

Low: 4 Medium: 3 High: 2

Replacement priority:

High: 2 Medium: 5 Low: 2

Additional Notes

The 2017 BMW 535i GT utilizes a component speaker system with separated tweeters and midrange drivers throughout the cabin, which typically allows for more precise soundstaging compared to full-range coaxial designs.
Tweeters are positioned in multiple locations including the C-pillars, center dash, and both front and rear door panels, suggesting a factory audio configuration designed to distribute high frequencies evenly across all seating positions.
The 4-inch midrange speakers mirror the tweeter placement pattern, with units in the C-pillars, center dash, front doors, and rear doors, indicating a multi-way setup that may separate frequency duties across dedicated drivers.
An 8-inch subwoofer located below the seats handles low-frequency reproduction, which tends to provide bass response while conserving trunk space compared to traditionally mounted enclosures.
Replacing the 1-inch tweeters could potentially improve high-frequency clarity and detail, particularly if upgrading from paper or standard synthetic dome materials to silk or metal variants.
The 4-inch midrange speakers may represent the primary upgrade opportunity for vocal reproduction and midrange warmth, as this frequency range often carries the majority of musical content and speech intelligibility.
Component systems like this one generally allow for individual driver upgrades without necessarily replacing the entire speaker set, enabling targeted improvements based on listening preferences or budget constraints.
The under-seat subwoofer position may limit bass output compared to larger enclosures, but aftermarket 8-inch subwoofers with higher excursion capabilities could enhance low-frequency extension and impact.