---
product_id: 148353357
title: "Rockville RockGhost Active Powered 8\" Hidden Car Subwoofer Sub For 15\"/16\"/17\" Full Size Spare Tire"
brand: "rockville"
price: "¥18118"
currency: JPY
in_stock: true
reviews_count: 4
url: https://www.desertcart.jp/products/148353357-rockville-rockghost-active-powered-8-hidden-car-subwoofer-sub-15
store_origin: JP
region: Japan
---

# 8" High Excursion 800W Peak Power Theft-Proof Design Rockville RockGhost Active Powered 8" Hidden Car Subwoofer Sub For 15"/16"/17" Full Size Spare Tire

**Brand:** rockville
**Price:** ¥18118
**Availability:** ✅ In Stock

## Summary

> 🎵 Elevate Your Ride with Hidden Power!

## Quick Answers

- **What is this?** Rockville RockGhost Active Powered 8" Hidden Car Subwoofer Sub For 15"/16"/17" Full Size Spare Tire by rockville
- **How much does it cost?** ¥18118 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/148353357-rockville-rockghost-active-powered-8-hidden-car-subwoofer-sub-15)

## Best For

- rockville enthusiasts

## Why This Product

- Trusted rockville brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Easy Installation:** Plug and play setup with all necessary wiring included.
- • **Ultimate Security:** Completely hidden in your spare tire, protecting against theft.
- • **Customizable Control:** Remote with adjustable gain, bass boost, and crossover settings.
- • **Seamless Integration:** Fits perfectly over your spare tire, maximizing trunk space.
- • **Unmatched Sound Quality:** Experience deep, clean bass that outperforms traditional trunk subs.

## Overview

The Rockville RockGhost Active Powered 8" Hidden Car Subwoofer is a revolutionary audio solution designed to fit seamlessly over your full-size spare tire. With an impressive 800 watts peak output and a unique tunnel air port design, this subwoofer delivers deep, clean bass without taking up any trunk space. Its theft-proof design ensures your investment is safe, while the easy plug-and-play installation makes it accessible for all car enthusiasts. Enjoy customizable sound control with a remote that allows you to adjust gain, bass boost, and more, making every drive an auditory adventure.

## Description

Description of Rock Ghost: Rockville Rock Ghost Powered Car Subwoofer (Amplifier built in). Sub Fits Inside Spare Tire Seamlessly (Goes on top of spare tire so you can leave your spare tire in place). Hidden In Spare Tire - Takes up No Trunk Space. Protected against theft because it is completely hidden in the spare tire. 800 Watts peak output. 200 Watts RMS output. Extremely loud (loud enough to vibrate your mirrors). Super clean sound that is musical and will not fatigue your ears. When this is mounted in your spare tire, the sound transmits cleanly and evenly throughout the vehicle without any vibrations or unwanted noises. It actually sounded better and cleaner than an ordinary sub in the trunk. Tunnel air port design. PWM MOSFET power supply amplifier built in. Low level RCA inputs. 8” high excursion Subwoofer.

## Features

- Features: Rockville RockGhost Powered Car Subwoofer (Amplifier built in). Sub Fits Inside Spare Tire Seamlessly (Goes on top of spare tire so you can leave your spare tire in place). Hidden In Spare Tire - Takes up No Trunk Space. Protected against theft because it is completely hidden in the spare tire. 800 Watts peak output. 200 Watts RMS output. Voice Coil: Single
- For Full Size Spare Tire Wheel Sizes of 15"/16"/17". Extremely loud (loud enough to vibrate your mirrors). Super clean sound that is musical and will not fatigue your ears. When this is mounted in your spare tire, the sound transmits cleanly and evenly throughout the vehicle without any vibrations or unwanted noises. It actually sounded better and cleaner than an ordinary sub in the trunk. Tunnel air port design.
- PWM MOSFET power supply amplifier built in. Low level RCA inputs. 8” high excursion Subwoofer. Reverse mounting design. Plug and play installation with wire harness containing power, ground, high level input, remote turn on, and RCA input. Back plate mounts and screws right on top of spare tire. Can also be mounted in trunk or under seat but we recommend mounting it in your spare tire. Flexible rubber surrounds.
- Wired 20 foot dash remote with adjustable gain, bass boost, low pass crossover filter, and phase control. Deep and clear bass frequency. Auto turn on and turn off. Adjustable Input Sensitivity. Soft Delayed Remote Turn-On. Thermal Protection Circuit, Short Protection Circuit and Overload Protection Circuit
- Phase Switch: 0° or 180°. Low Pass Filter: 50Hz - 150Hz. Frequency response: 20 Hz – 250 Hz. Bass Boost: 0 - 12dB @ 45Hz. 20 Hz Subsonic Filter. Cast aluminum casing. Requires 10 gauge power wire. Dimensions: 14.17” diameter x 5.7” height. Includes all wiring needed for installation

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Audio Driver Size | 8 Inches |
| Audio Driver Type | Dynamic Driver |
| Is Waterproof | FALSE |
| Color | Black |
| Subwoofer Diameter | 8 Inches |
| Speaker Type | Subwoofer |
| Woofer Diameter | 8 Inches |
| Maximum Range | 10 Meters |
| Controller Type | Remote Control |
| MP3 player | No |
| Additional Features | BASS BOOST |
| Control Method | Remote |
| Warranty Type | Full (1 year) |
| Speaker Size | 8 Inches |
| Audio Output Mode | [VARIES] |
| Antenna Location | Musical |
| Enclosure Material | Aluminum |
| Mount Type | spare tire mount |
| Specific Uses For Product | Musical |
| Speaker Maximum Output Power | 800 Watts |
| Power Source | DC Power Supply |
| Connectivity Technology | RCA |
| Subwoofer Connectivity Technology | Wired |
| Compatible with Vehicle Type | Car |
| Item Weight | 14 Pounds |
| Item Dimensions D x W x H | 16.9"D x 18.6"W x 9.1"H |
| Unit Count | 1.0 Count |

## Product Details

- **Brand:** Rockville
- **Speaker Maximum Output Power:** 800 Watts
- **Frequency Response:** 20 Hz
- **Connectivity Technology:** RCA
- **Audio Output Mode:** Stereo

## Images

![Rockville RockGhost Active Powered 8" Hidden Car Subwoofer Sub For 15"/16"/17" Full Size Spare Tire - Image 1](https://m.media-amazon.com/images/I/71eNacr0h2L.jpg)
![Rockville RockGhost Active Powered 8" Hidden Car Subwoofer Sub For 15"/16"/17" Full Size Spare Tire - Image 2](https://m.media-amazon.com/images/I/61EsUTkGB-L.jpg)
![Rockville RockGhost Active Powered 8" Hidden Car Subwoofer Sub For 15"/16"/17" Full Size Spare Tire - Image 3](https://m.media-amazon.com/images/I/71266M2rISL.jpg)
![Rockville RockGhost Active Powered 8" Hidden Car Subwoofer Sub For 15"/16"/17" Full Size Spare Tire - Image 4](https://m.media-amazon.com/images/I/81NmpunasuL.jpg)
![Rockville RockGhost Active Powered 8" Hidden Car Subwoofer Sub For 15"/16"/17" Full Size Spare Tire - Image 5](https://m.media-amazon.com/images/I/419Q94gs51L.jpg)

## Questions & Answers

**Q: It will fit in a vw golf mk7 spare tire?**
A: Dimensions: 14.17” diameter x 5.7” height. These are the dimensions of the subwoofer, check the measurements of your car.

**Q: Is it normal for the wired remote control to get smoking hot**
A: The remote on my unit hasn’t gotten that hot and I've been on 6hr trips with the unit running without any issues

**Q: Does this fit a 2012 hyndia accent hatchback in the  hidden tire compartment**
A: Maybe , But they do make a subwoofer designed to fit spare compartments

**Q: Will it work on a 2020vw golf gti mk7 with the fender system**
A: Yes! Install isn't too too bad, doing it on my mk6 gti tomorrow!

## Customer Reviews

### ⭐⭐⭐⭐⭐ Buena opcion para bajo activo oculto en rueda
*by R***S on July 4, 2025*

es un buen bajo para reforzar un poco los graves en tu vehiculo, suficiente para hacer vibrar el interior del vehiculo con calidad aceptable.

### ⭐⭐⭐⭐⭐ Easy to install, small package, good sound!
*by M***A on October 31, 2020*

Needed to add some more bass to the wife's new 2017 Tucson. It has the upgraded Infinity system in it w/factory 8in sub. The sub was not giving adequate levels of bass that I have grown used to with my tastes in audio systems. In my own car (2014 Fusion) I went the route of adding a sub/amp/line converter/power cables/etc and that was it. It sounds great, but was a lot more work and money, and takes up trunk space. I knew my wife was not going to like that, so I was researching replacing the factory sub... when I came across this Rockville spare tire sub.After looking at many reviews and videos and blogs about how great this little all-in-one sub was, I decided to try one.I was not disappointed. The install took maybe an hour and a half (removed rear bench seat, removed rear side panels was the hardest part). The factory amp was located in the rear, so I tapped all my power and high level inputs into that. A quick test to make sure it worked, and I put it all back together and buttoned everything back up. The only modification I had to do was cut the bolt holding it down to the frame about an inch, and I used a larger washer for the top (not shown in photo). It fits snug. I ran all the wires through the spare tire rim's holes too for even more stealth. If I need to take the spare out, I'll have to remove the speaker anyway, and when I unplug the wiring harness, it will easily slip back through the spare tire rim holes.It takes up no space at all, all wires are hidden, the trunk deck fits over it perfectly. It's completely hidden.I believe on the Tuscon, the trunk deck would fit on the lower level if you replaced the tie down bolt with something else more low profile. With the bolt that it came with, the thumb screw and nut under it make it stick up enough that i am using the higher level for the trunk deck. But that's OK, we were using the higher level already anyway. Just note that if you are using the lower level position in your vehicle, it may not fit.Sound quality is ... not bad. I am impressed that it does shake the car a bit for only an 8in speaker if you push it. Its not going to be life changing or win any sound competitions, but I think for a totally hidden, small completely self contained sub/amp combo, this is a huge winner.The remote controls are a nice touch. I tuned it a bit from the front seat, then just tucked the whole remote unit and wire up next to the sub and out of the way. It's not like I need to be adjusting it on the fly. I set it to about 60% gain, 80ish% boost, and around 80HZ for the crossover frequency. Phase was set to 0deg.I can now turn the bass down on the head unit to preserve the rest of the speakers from taking max bass, and then turned the sub up more to compensate. It sounds crystal clear for a factory system at high volume levels. I did this in my Fusion as well, turned the head unit bass down, and then compensated with the sub. The factory speakers will get longer life out of them if you push them all the time.All in all, I'll see how this lasts over time and write back if it fails in less than an acceptable time.Really happy with this unit. I would consider getting one for my Fusion too, and replacing the sub box/amp combo, but will need to drive her Tucson some to see if the bass is OK for my personal tastes or not.

### ⭐⭐⭐⭐⭐ Just buy it, already!
*by J***S on July 4, 2020*

Since most don't put the make of their car for comparison, I have a 2013 Toyota RAV4. I hope this helps someone else who is on the fence. I'll start with, "just buy it, already!" You will not have any regrets! For the price, two in one and out of the way! Its virtually invisible! Don't fall for the added stuff that they recommend that you buy, you don't need it! It comes with everything that you need. I kept my head unit mainly because I have xm radio, HD Radio, bluetooth, cd (yes I still use it and still the cleanest sound to me), most of those are extra on a new unit! That's ok, I'll rock with this for now. I replaced all six speakers but I kind of wish I could've heard what this sub would've sounded like with the older ones, still no regrets as they don't distort and play plenty loud for me. I drive them about 65-70% of what I use to with the old ones. I went with infinity purposely because they have a lower ohm rating which doesn't steal a lot of power from the head unit and the clarity is so much better! Everything sounds so much better and this sub was the last piece of the puzzle and it really brings it all together! As good as the Infinity's are they just can't produce what the sub can. I listen to everything from salsa, merengue, rap, rock, jazz, vocals, classical, techno, metal, reggae...all of it! Some on here have said you won't be shaking the windows in the cars next to you, but you will yours and that's fine with me! Bass is tight and clean! The way it should be! And you can control every aspect of it right at the controls, all for $150, are you kidding me! I can't speak for the life of this thing yet and I hope it does last. I will say, what you do need if you're installing it yourself, I forget what they are called, basically to tap the speaker for your +/-, my head unit didn't have rca outs as an option so I went to the enclosures near the foot on both sides of the front doors. You'll want the "taps" so that you don't have to cut the wire like I did or make a space w/o cutting the wire, then stripping it while leaving the wire intact. Still worked! That's all I have, ENJOY, I KNOW I WILL!

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*Product available on Desertcart Japan*
*Store origin: JP*
*Last updated: 2026-01-22*