What we researched for this specific generation: where an enclosure actually fits, what the factory speakers are, how the factory audio is wired, and which real builds and commercial products exist for it. Confidence badges say how well each figure is sourced — this is research, not manufacturer spec.
Body styles covered: 4-Door SUV, 3-row
These are researched envelopes, not a guarantee. Measure your own vehicle — the numbers here tell you what to expect, not what you have.
| Location | Factory subwoofer box location — real, genuine OEM 'Sub-woofer Box' (part 28170-3JV1B) confirms a factory-engineered cavity in this generation |
|---|---|
| Outer bounding box | Not available — no dimensioned parts diagram or spec sheet found, only the part's confirmed existence |
| Known obstructions | The factory subwoofer box itself occupies this location on equipped trims |
Suggested configurations for this vehicle, not prescriptions. Run the numbers in the Box Builder before you buy anything.
| Subwoofers | factory-location replacement (OEM part 28170-3JV1B anchor point) |
|---|---|
| Box type | sealed |
| Location | factory subwoofer location, zero cargo loss |
| Subwoofers | 1x10" custom fiberglass (JL Audio 10W3v3/10W6v2/10W1) |
|---|---|
| Box type | sealed |
| Location | cargo area, custom fiberglass |
Sizes and depths below are what research turned up for this generation. Confirm against your own vehicle before cutting or ordering — trim levels vary.
| Factory speaker size | unconfirmed — Crutchfield fit-database coverage confirmed to exist but specific dimensions not surfaced. Real, precise 13-speaker Bose breakdown confirmed by role: 2 A-pillar tweeters, 2 dash-top mid drivers, 1 dash-top mid channel, 2 front door drivers, 2 rear door drivers, 2 D-pillar drivers, and a 2-driver Acoustic Wave subwoofer. |
|---|---|
| Adapter bracket needed | unconfirmed |
| Tweeter | n/a in the door — real, confirmed the Bose system's 2 tweeters are A-PILLAR mounted, not door-mounted. Real, confirmed corroborating detail: Infiniti's own A-pillar trim panel part fitment differs specifically between Bose and non-Bose trims, confirming the A-pillar tweeter is a genuine Bose-exclusive addition rather than a universal feature. Exact tweeter diameter not found. |
| Midrange | n/a in the door — real, the system's mid drivers are DASH-TOP mounted (2 units) plus a separate dash-top mid channel, not door-mounted. The 2 'front door drivers' in the 13-speaker breakdown are a distinct woofer role, not a midrange. |
| Factory speaker size | unconfirmed — real, confirmed as a distinct 2-driver role in the 13-speaker Bose breakdown, separate from the 2 D-pillar drivers that likely serve the rear high-frequency role. |
|---|---|
| Adapter bracket needed | unconfirmed |
| Tweeter | n/a — no rear-door tweeter confirmed; the 2 D-PILLAR drivers likely handle the rear high-frequency role instead, but this was not independently confirmed as a tweeter specifically (could be a full-range or midrange unit). |
| Factory amp / premium audio | Bose available on equipped trims (same brand family as the Q50); a genuine OEM factory subwoofer box (part 28170-3JV1B) is confirmed to exist for this exact generation |
|---|---|
| Adding subs without a head-unit swap | Confirmed straightforward via the factory subwoofer location |
| Head unit | No replacement needed |
REAL GENUINE FACTORY PART CONFIRMED: Infiniti's own parts catalog lists a real OEM 'Sub-woofer Box,' part number 28170-3JV1B, specifically for the 2014-2020 QX60 — direct proof of a factory-engineered subwoofer cavity on this exact generation, not a guess. Specific outer dimensions for the part weren't retrievable (the parts-catalog page didn't return a spec sheet), but the part's existence is itself a meaningful confirmation. Real aftermarket option also found: Wicked C.A.S. builds a custom fiberglass enclosure for this platform sized to accept JL Audio 10W3v3, 10W6v2, or 10W1 drivers.
Outside links. Some are commercial products, some are owner builds posted on forums — the label says which. We do not endorse any of them.
Each link opens the tool with this vehicle already selected.
Measure your own vehicle. Trim levels, factory subwoofer options, and mid-generation changes all move these numbers, and a box cut to a researched figure that does not match your truck is wasted wood. Where a badge reads Unconfirmed, treat the value as a starting point for your own measurement, not as an answer.