Kicker Hideaway 51HS8 Sub 8" Compact Powered Active Underseat Subwoofer 150w RMS
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The Kicker Hideaway 51HS8 is a compact, powered 8" underseat subwoofer with a built-in 150W RMS amplifier, part of Kicker's Hideaway range.
This listing is the 8" Hideaway. The Kicker Hideaway range is also available as the 51HS10 10" 180W version.
Key specifications
- Subwoofer: 8" powered, built-in amplifier
- Power: 150W RMS
- Frequency response: 25–120Hz
- Crossover: low-pass 50–120Hz 12dB/octave; high-pass 25Hz 24dB/octave
- Inputs: high level (250mV–10V) and low level (125mV–5V)
- Controls: wired remote bass control, +6dB bass boost, 0/180° phase switch
- Dimensions: 7.94 x 23.8 x 35.2 cm (H x W x D)
Hideaway 51HS8
The Hideaway HS8 is a compact powered 8" subwoofer built in a tough all-aluminium frame. At just 7.94 cm high, it fits under a seat or in other tight locations in almost any vehicle.
The Hideaway was Kicker's first compact powered subwoofer and an International Consumer Electronics Show (CES) Innovations award winner for design and engineering.
It combines a 150W amplifier and an 8" subwoofer in a single slim enclosure, and installs quickly thanks to a quick-connect Molex power plug and Velcro-fastened nylon straps for secure fitting and easy removal.
The harness covers power, signal and remote turn-on in one connection. Included features include a remote bass control, adjustable low-pass crossover, variable +6dB bass boost, a phase switch for maximum output, and high- and low-level inputs for compatibility with factory or aftermarket head units.
Explore the full range in Kicker Loaded Subwoofer Enclosures.
Specification
| RMS Power (W) | 150 |
|---|---|
| Peak Power (W) | N/A |
| Frequency Response | (Hz) 25-120 |
| Phase Switch | Yes; 0-180 |
| Height (cm) | 7.94 |
| Width (cm) | 23.8 |
| Depth (cm) | 35.2 |
| Grills | Included |
| Built-in Amplifier | Yes |
| Remote Control | Included (wired) |
| Crossover | Low-Pass 12DB/ octave 50-120Hz or High-Pass 24dB/ octave 25Hz |
| Input Type | High & Low Level |
| Input Sensitivity High Level | 250mV-10V |
| Input Sensitivity Low Level | 125mV-5V |
What's Included
- Kicker Hideaway HS8
- Power Loom
- Wired Remote Control
Kicker
About the Kicker 51HS8
From our tech experts at CEN
The Kicker Hideaway 51HS8 is a compact powered underseat subwoofer: an 8 inch driver and a 150w RMS amplifier in one all-aluminium enclosure just 7.94cm high. It plays from 25 Hz to 120 Hz, with an adjustable 50 to 120 Hz low-pass filter, variable +6 dB bass boost and a phase switch. A wired remote bass control is included.
Who it suits
Drivers who want proper bass with no boot box, from a unit that fits under a front seat in most cars. High and low-level inputs mean it works with factory or aftermarket head units. The 51HS10 is the 10 inch, 180w RMS version in almost the same footprint.
Our tech experts advise
At 7.94 x 23.8 x 35.2cm it fits most seats, but measure first and check the seat runners. A quick-connect Molex harness carries power, signal and turn-on. Secure it with the supplied straps. Installation is priced per vehicle, so get in touch with your make, model and year.
Explore the full Kicker range at CEN, with fast UK dispatch and expert advice from our Nottingham team. Shop all Kicker
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Frequently Asked Questions
Q: What does RMS power mean?
A: RMS is the continuous power a subwoofer can handle, and it is the number that matters when matching an amplifier. Peak or max figures describe short bursts only. Match your amplifier output to the RMS rating in the Specification tab.
Q: Does the Kicker Hideaway HS8 need a separate amplifier?
A: No. It is a powered subwoofer with a built-in 150 watt RMS amplifier.
Q: Will the Hideaway HS8 fit under a car seat?
A: It is designed for tight spaces such as under a seat, measuring 7.94 cm high, 23.8 cm wide and 35.2 cm deep. Check the space in your vehicle before buying.
Q: Can the Hideaway HS8 connect to a factory stereo?
A: Yes. It has high and low level inputs and two automatic turn-on options, and connects through a quick-connect plug and harness.
Q: What's in the box with the Kicker Hideaway 51HS8?
A: The Hideaway HS8 subwoofer, the power loom and a wired remote control.
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