Best Truck Speaker Box Behind Seat: Top Picks for Space-Saving Bass
Looking for a truck speaker box that fits behind the seat without sacrificing cargo space? This guide highlights five practical options ideal for different setups, from slim under-seat subs to rear-seat enclosures. Best for small cabs, frequent travelers, and DIY installers who want quick installs and clear bass. The top picks cover shallow, sealed, and angled designs to maximize space, sound quality, and ease of installation.
| Product | Best For | Why It Stands Out |
|---|---|---|
| QPower Single 10in Sub Enclosure | Compact trucks; behind-seat mounting | Very shallow design; flexible mounting directions; universal fit for most GMC, Chevy, and Ford trucks |
| Znclces 10″ 1200W Slim Under Seat Sub | Max space under seat; built-in amplifier | Ultra-slim, built-in amp, strong heat dissipation; ideal if you want a clean under-seat setup |
| Retro Manufacturing R-TB8 8″ Truck Box | Premium box feel; behind-seat or cab area | Full-range 8″ box with soft dome tweeters; durable construction and established fit |
| BBTO Angled 6×9 Speaker Boxes | Budget-friendly upgrade for rear doors or under-seat area | Angled design fits tight spaces; includes two enclosures for a paired setup |
| Sporacingrts Behind Seat Speaker Brackets | Custom rear-seat speaker installs | Specifically designed to mount 6×9 speakers behind seats; quick, non-destructive installation |
QPower Single 10in Sub Enclosure
The QPower single 10-inch enclosure is designed for shallow mounting, making it suitable for trucks with limited rear space. It accepts a standard 10″ sub and can be placed behind or under the seat depending on cabin layout. Best for buyers who want to maximize bass without sacrificing crew or cargo space. The enclosure is compatible with most GMC, Chevy, and Ford trucks, offering flexible mounting directions for sound orientation. Caution: subwoofer not included, so user must provide a compatible 10″ driver.
QPower Pack of 2 Single 10-Inch Sealed Subwoofer Boxes
This pair of sealed 10″ boxes provides a compact, symmetrical bass upgrade ideal for truck cabins. Each enclosure offers 0.9 cubic feet of airspace, which supports tight, controlled bass while keeping overall footprint small. Best for buyers who plan a balanced dual-sub setup and want straightforward, quick-installation steps—no custom fabrication required. Limitation: drivers are not included, and you’ll need two suitable 10″ subwoofers to realize the full effect.
Sporacingrts Behind Seat Speaker Brackets
These brackets are designed to hold 6×9 speakers behind the seat, enabling a behind-seat installation without drilling or extensive modification. Best for buyers who want to add or upgrade rear seating sound without replacing doors. The brackets are built from robust 16-gauge steel for durability. Caution: fitment assumes a standard 6×9 speaker size; verify compatibility with your specific model before purchase.
Retro Manufacturing R-TB8 8″ Full Range Truck Box
The R-TB8 is an 8″ full-range truck box with gray carpeting, soft-dome tweeters, and chrome push terminals, designed for rugged use in trucks. Best for buyers seeking a ready-made front-to-rear option that enhances highs and mids in a compact enclosure. The frequency response suggests broader audible range compared to single-driver subs. Limitation: not a dedicated subwoofer enclosure, so bass depth may be moderate unless paired with a dedicated subwoofer system.
BBTO Angled Style 6×9 Speaker Boxes (Pair)
BBTO offers a 2-piece angled speaker box set designed to fit 6×9 speakers in trucks where space is tight. Best for buyers seeking an affordable, easy upgrade that improves rear or cabin sound without major installation. The angled design helps fit irregular spaces and resist passenger interference. Limitation: designed specifically for 6×9 speakers; verify size compatibility for other drivers.
Buying Guide
What should I consider when choosing a truck speaker box behind the seat?
- Vehicle space: Measure the available behind-seat or under-seat area to ensure the enclosure fits without intruding on legroom or cargo.
- Speaker type and size: Determine whether you need a dedicated sub, a full-range box, or an angled design to optimize space and sound staging.
- Mounting flexibility: Some boxes are universal or have adjustable orientation to direct sound toward the cab or rear seat areas.
- Power needs: Consider a powered sub with built-in amplification if you want a compact, integrated solution; otherwise plan for an external amp and wiring.
- Installation effort: Sealed boxes generally require less tuning, while ported or built-in amplified units may require more wiring and settings.
What is the difference between a sealed and a dual-sub setup?
Sealed boxes provide tight, accurate bass with minimal phase issues and are easier to install in tight spaces. Dual-sub setups increase output and a smoother bass response, especially in larger cabins, but require precise placement and a compatible amplifier configuration to avoid cancellation or uneven loading.
How do I choose between under-seat vs behind-seat mounting?
Under-seat subs maximize floor clearance and keep cargo space free, ideal for compact cabs. Behind-seat enclosures offer a balance between bass depth and rear-seat visibility, often fitting larger or multiple drivers. Your choice depends on space, desired bass magnitude, and whether rear passengers are a priority.
What installation considerations affect sound quality?
Use proper enclosure volume per driver, secure mounting to reduce vibrations, and ensure proper power wiring with adequate grounding. Avoid placing boxes where they contact seats or move during driving to prevent rattling and fatigue of the enclosure or wiring.
Who should consider these products?
Car enthusiasts seeking a space-saving bass upgrade in trucks with limited rear space; frequent travelers wanting a quick install; and DIY installers who prefer non-destructive mounting options. Consider your cabin layout, driver size, and whether you want a simple upgrade or a more robust multi-enclosure system.
FAQ
- What is the best option for a shallow truck rear installation?
– The QPower Single 10in Sub Enclosure is designed for shallow mounting and fits behind or under the seat in many trucks. - Is a built-in amplifier subwoofer advisable for small cabs?
– A slim under-seat sub with built-in amplification, like the Znclces model, can simplify wiring and space management. - Can I install 6×9 speakers behind the seat with brackets?
– Yes, Sporacingrts brackets are designed for 6×9 speakers behind seats, offering straightforward, non-destructive mounting. - Do I need multiple enclosures for better bass?
– A dual-sub setup can improve bass depth and evenness, but requires careful placement and an appropriately rated amp. - What should I verify before buying a truck box?
– Verify dimensions, speaker compatibility, mounting options, and whether you need a powered or passive enclosure.