KICKER 51HS8 Hideaway Compact Powered Subwoofer Review: Who It Fits and Who Should Skip It
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This kicker 51hs8 hideaway compact powered subwoofer review looks at a single-driver unit built for tight spaces. It pairs an 8-inch subwoofer with a 150-watt amplifier in a small black enclosure. The design measures 11.5 inches wide and 17.8 inches tall, weighing just 14.1 pounds. You get high- and low-level inputs for flexible integration. This compact powered speaker aims to deliver deep bass without consuming much room, making it a practical choice for vehicles or small listening areas where space is at a premium.
What stands out
- 150-watt integrated amplifier drives the 8-inch driver
- Compact dimensions of 11.5 x 17.8 x 5.25 inches
- High- and low-level inputs for versatile head unit connection
- Remote bass control and adjustable low-pass crossover included
Who it fits
Good fit for
This subwoofer suits car owners with limited trunk or cabin space who still want noticeable bass. The high- and low-level inputs make it easy to connect to factory or aftermarket radios. If you need a quick install with Velcro straps and a remote for level tweaking, this setup fits well. It is also good for listeners who want a single powered unit that handles its own amplification without needing external gear.
Who should skip it
Skip this model if you need deep sub-30Hz extension. An 8-inch driver has physical limits in moving large air volumes. You will not get the room-filling rumble of a 12-inch or dual-woofer system. If your goal is reference-level home theater performance or massive output for competitive audio competitions, this compact unit lacks the cone area and excursion needed. Look for larger enclosures instead.
Verdict: The Kicker 51HS8 is a space-saving solution for users who need convenient integration and moderate bass. It trades raw output for installation ease and compact size.
Key specs explained for this sub
Woofer Size: 8"
This measurement tells you the diameter of the moving driver. An 8-inch cone is smaller than the common 10 or 12-inch options. It allows the unit to fit in tight spaces where larger subs cannot go. You get focused low-end response rather than massive room-shaking pressure. This size is ideal for compact vehicles or small home setups where space is limited.
Power Handling: 150-watt amplifier
This rating indicates the continuous power the built-in amp can deliver to the driver. A 150-watt output provides enough energy to move the 8-inch cone effectively. It ensures the bass remains tight and controlled during dynamic music passages. You do not need an external receiver to drive this unit. It is self-contained and ready to plug in for immediate use.
Connectivity: High- and low-level inputs
These inputs allow the sub to connect to various audio sources. High-level inputs let you tap into speaker wires from a factory radio. Low-level inputs use RCA cables for aftermarket head units. This dual capability means you can integrate the sub with almost any car audio system. It removes the guesswork of finding compatible cables or adapters for your specific setup.
Size: 11.5 inches wide
This dimension describes the horizontal footprint of the enclosure. At 11.5 inches, it is narrow enough to tuck into door pockets or behind seats. You can install it without sacrificing significant legroom or cargo space. Compare this to larger subs that require floor mounting or trunk space. This compact width makes it a practical choice for vehicles with limited interior volume.
Design and Build Details
The Kicker 51HS8 is a single-driver unit with a compact footprint. It measures 11.5 inches wide, 17.8 inches tall, and 5.25 inches deep. The enclosure weighs 14.1 pounds. This small size allows it to fit in tight spaces where larger subwoofers cannot go. The finish is black, which helps it blend into most vehicle interiors without drawing attention. According to the listing, the design is award-winning, recognized for engineering excellence at CES. This suggests a focus on efficient use of space.
Installation is designed to be straightforward. It features a quick-connect power plug and Velcro-fastened nylon straps. These components allow for secure mounting and easy removal. You do not need complex wiring for basic setup. The unit includes both high- and low-level inputs. This versatility lets you integrate it with nearly any factory or aftermarket head unit. You can choose the input method that matches your current audio system.
Controls are located on the unit for advanced customization. You have access to a remote bass control, an adjustable low-pass crossover, and a variable +6dB bass boost. There is also a phase-cancelling switch. These features let you fine-tune the sound to your specific environment. The 150-watt amplifier is built into the enclosure. This all-in-one design keeps the system compact while delivering deep bass. The layout prioritizes function and ease of use.
Setup And Everyday Use
Installing the Kicker 51HS8 is designed to be straightforward. The unit includes a quick-connect power plug, which simplifies the electrical connection. You can secure the enclosure using the included Velcro-fastened nylon straps. This method allows for easy installation and removal without permanent mounting hardware. The compact dimensions of 11.5 inches wide and 5.25 inches deep help it fit into tight spaces in your vehicle.
For audio integration, the subwoofer offers both high-level and low-level inputs. This versatility allows it to connect with nearly any factory or aftermarket head unit. You do not need a separate receiver to drive it, as the built-in 150-watt amplifier handles the power. The powered speaker type ensures it is ready to use once connected.
Daily use involves adjusting the sound to match your preference. The remote bass control lets you manage volume levels from a distance. You can fine-tune the output using the adjustable low-pass crossover. This setting determines which frequencies the subwoofer reproduces. The variable plus 6dB bass boost allows you to enhance low-end response when needed. Additionally, a phase-cancelling switch is available to maximize output. These controls give you precise management over the bass performance without needing to open the enclosure. The design supports seamless integration into your existing audio system.
Before You Buy This Subwoofer
You need to verify your vehicle’s audio system supports both high-level and low-level inputs. This Kicker unit offers both, making it versatile for factory or aftermarket head units. Check your available space carefully. The enclosure is 11.5 inches wide, 17.8 inches tall, and 5.25 inches deep. Ensure you have clearance for the quick-connect power plug and the Velcro straps. You may need additional mounting hardware if the straps do not suit your surface. The built-in 150-watt amplifier handles power, so you do not need an external amp. However, you must provide power to the quick-connect plug. Upkeep is minimal. Keep the black enclosure clean and dry. Dust the grille occasionally. This model fits well alongside larger options if you prioritize space savings. It suits buyers who need deep bass without a large footprint. If you require massive output, look at bigger drivers. For tight spaces, this compact design is a strong candidate.
Check before you buy
- Verify your head unit supports high or low-level inputs.
- Measure your installation space against the 11.5x17.8x5.25 inch dimensions.
- Confirm you have a power source for the quick-connect plug.
- Check if Velcro straps are sufficient for your mounting surface.
The product at a glance
Kicker 8-Inch Compact Powered Subwoofer
Best for: compact vehicle bass enhancement
- Woofer Size
- 8"
- Power Handling
- 150-watt amplifier
- Connectivity
- High- and low-level inputs
- Speaker Type
- Powered
- Dimensions
- 5.25 × 11.5 × 17.8 inches
- Weight
- 14.1 pounds
View on Amazon: Kicker 8-Inch Compact Powered Subwoofer Affiliate link
The Kicker HS8 packs an 8-inch driver and a 150-watt amplifier into a compact 11.5-inch wide enclosure. It weighs 14.1 pounds and measures 17.8 inches tall. You get high- and low-level inputs for versatile integration with factory or aftermarket head units. The unit includes a remote bass control and adjustable crossover. It suits buyers needing deep bass in a small footprint.
Pros
- 150-watt amplifier drives the 8-inch woofer
- High- and low-level inputs for easy integration
- Includes remote bass control and phase switch
- Compact dimensions fit tight spaces
Cons
- Single 8-inch driver limits maximum output
- No visible display on the unit
- Weighs 14.1 pounds
Good fit if
- You need bass in a small vehicle space
- You want to use existing factory head units
- You prefer a hidden installation
Skip if
- You require deep sub-20 Hz extension
- You need multiple subwoofers for high volume
- You want a standalone sub with its own display
Verdict: Kicker HS8 8-Inch Powered Subwoofer fits you if you need compact, efficient bass from a single driver. It delivers solid low-end response for small enclosures without requiring complex wiring.
Specifications side by side
| Spec | Kicker 8-Inch Compact Powered Subwoofer |
|---|---|
| Woofer Size | 8" |
| Power Handling | 150-watt amplifier |
| Connectivity | High- and low-level inputs |
| Speaker Type | Powered |
| Dimensions | 5.25 × 11.5 × 17.8 inches |
| Weight | 14.1 pounds |
| Size | Single 8 Inch |
| Color | Black |
| Model | 51HS8 |
Frequently asked questions
Does the Kicker 51HS8 include a remote control?
The product data does not list a remote control as part of the package. You control the unit using the onboard bass and crossover knobs. This design keeps the interface simple and direct. You adjust levels without needing additional hardware. The controls are located on the side of the enclosure for easy access during setup.
How much space does the Kicker HS8 take up in a vehicle?
The enclosure measures 11.5 inches wide, 17.8 inches tall, and 5.25 inches deep. These dimensions allow it to fit in tight areas where larger subwoofers cannot go. The compact footprint is its main advantage. You can place it in corners or under seats. The small size makes it ideal for vehicles with limited cargo or trunk space.
Is the Kicker 51HS8 easy to install without wiring expertise?
The unit features a quick-connect power plug that simplifies the electrical connection. You do not need to hardwire the power source. The package includes Velcro-fastened nylon straps for mounting. This method allows for easy installation and removal. You can secure it in various positions without drilling or complex tools. The setup is designed for straightforward integration.
What amplifier power does the Kicker 51HS8 use?
The subwoofer pairs an 8-inch driver with a 150-watt amplifier. This integrated power output drives the single cone. The amplifier is built directly into the enclosure. You do not need an external amp. This all-in-one design reduces clutter. The power level is sufficient for compact vehicle bass enhancement.
Does this subwoofer support both high-level and low-level inputs?
Yes, the Kicker 51HS8 offers both high-level and low-level input options. This versatility allows it to work with factory or aftermarket head units. You can choose the input method that matches your current audio system. This feature makes it adaptable for various vehicle setups. You are not limited to one connection type.
What is the weight of the Kicker 51HS8 enclosure?
The enclosure weighs 14.1 pounds. This light weight makes it easy to handle and position. You can move it without significant effort. The compact size contributes to this manageable mass. It is suitable for placement in areas where heavy items might be difficult to secure. The weight is balanced with its small physical dimensions.
Can I mount the Kicker HS8 vertically or horizontally?
The included Velcro-fastened nylon straps allow for flexible mounting options. You can secure the unit in various orientations. The design supports placement in tight spaces. You are not restricted to a single mounting style. The straps provide a secure hold regardless of the angle. This flexibility helps you optimize space in your vehicle.