Bavsound Ghost BMW Underseat Subwoofers V3 8-ohm Set of two 8-ohm woofers — replaces factory underseat subs in select BMW models (BSD.GUSW.8O-KIT)

Name: Bavsound Ghost BMW Underseat Subwoofers V3 8-ohm
Brand: Bavsound
SKU: 447SUB8O
Price: 649.0 USD
Availability: InStock
Rating: 5.0 (1 reviews)

Item # 447SUB8O

The package contains two woofers that drop right into your factory underseat locations for dramatically bigger bass.

Does it Fit your car?

Find what Fits your vehicle

Remove

Checking fit...

Front

1/5

Back

2/5

Only at Crutchfield

3/5

Only at Crutchfield. No pressure. And no commissions! Our experts help you get what you need and will never upsell you. No sweat. We do the research, so you get the best info, the best instruction, and the best tech support. All for free. No regret. With 60-day price protection and returns, you can feel good about your purchase – or send it back. Legendary Service. Since 1974.

Golf ball shown for scale

Bavsound Ghost BMW Underseat Subwoofers V3 8-ohm Front

Bavsound Ghost BMW Underseat Subwoofers V3 8-ohm Back

Bavsound Ghost BMW Underseat Subwoofers V3 8-ohm Only at Crutchfield

Bavsound Ghost BMW Underseat Subwoofers V3 8-ohm Other

Bavsound Ghost BMW Underseat Subwoofers V3 8-ohm Golf ball shown for scale

The package contains two woofers that drop right into your factory underseat locations for dramatically bigger bass.

Item # 447SUB8O

Ships free

Every order includes

Free lifetime tech support
60-day price-drop protection
60-day returns

In stock

Deeply discounted installation gear

$649.00 pair

Add to cart

Other options

Add to wishlist

Compare products

Get questions answered fast & free

Expert help 400+ hours training Virginia-based

1-888-955-6000

by Crutchfield's Charlie Pastorfield

Upgrade your BMW

Dry rot. Blown speakers. Whatever the reason, the bass in your BMW isn't what it used to be. Bavsound's Ghost BMW Underseat Subwoofers V3 package will put you on the road to better bass. The package contains two woofers that drop right into the factory locations. These 8-ohm woofers work perfectly with the BMW factory amplifier, so you'll enjoy years of impressive low-frequency punch.

More bass, much more bass

The polypropylene woofer cones offer extremely flat response from 40 to 200 Hz for very clean bass. The subs also deliver much better response below 40 Hz, so you'll feel the difference. Superior materials and design ensure that these woofers will dramatically outperform the factory subs, and Bavsound's 4-year warranty reflects their confidence in this package's performance and durability.

Installation made easy

Bavsound estimates it will take about 90 minutes to install these speakers, and they offer a detailed installation video to help you through the process. Bavsound notes that it'll take about 20 hours of playing time before these subs reach their full performance potential.

Installation Note: With 2018-up X3 models and vehicles with "Base" audio systems, you'll need to make a slight modification to factory enclosure which will require additional tools.

Product highlights:

two BMW-specific subwoofers
designed to fit directly in the underseat locations in select BMW models (no mods needed)
BMW speaker harness plugs directly into new subs
polypropylene cone with dampened steel basket
8-ohm impedance compatible with BMW amplifier
power handling: 160 watts RMS (320 peak)
frequency response: 40-200 Hz
warranty: 4 years
MFR # BSD.GUSW.8O-KIT
Item # 447SUB8O

What's in the box:

Bavsound Ghost BMW Underseat Subwoofers V3 8-ohm owner's manual

Two vehicle specific subwoofers
Customer note

Researched by Crutchfield's Pat M.

Features & specs

General
Speaker Size	Vehicle-specific
Driver Design	1-way
Woofer Design	Cone
Woofer Material	Paper/Polypropylene
Woofer Surround	Rubber
Midrange Design	---
Midrange Material	---
Tweeter Design	---
Tweeter Material	---
Super Tweeter Design	---
Super Tweeter Material	---
Impedance (Ohms)	8
Weather-resistant	No
Grilles Included	Gray steel
Parts Warranty	4 Years
Labor Warranty	4 Years
Specifications
Sensitivity (1W at 1 meter)	N/A
Sensitivity at 2.83 volts	N/A
Frequency Response	40 - 0.2k Hz
Maximum RMS Wattage	160
Peak Power Handling (Watts)	320
Top-mount Depth (Inches)	1 5/8
Bottom-mount Depth (Inches)	N/A
Cutout Diameter or Length (inches)	6 3/4
Mounting Height (Inches)	1
Frame Width	8.5
Frame Length	8.5

Product Research

Features

Mounting: The Ghost Subs are designed as direct replacements for the factory under-seat subwoofers in select BMW models. In most cases, the new sub has the same screw hole pattern as the factory sub and is a perfect fit. The factory grille is usually re-installed over the new subwoofer. Please enter your vehicle information to confirm fit.

Wiring: The BMW factory wiring harness plugs directly into the subwoofer frame.

Magnets: The sub uses a neodymium magnet to minimize size without giving up magnetic field strength.

Mounting: In the installation video Bavsound describes a method of tilting the seat back so the subwoofers can be installed without completely removing the seats.

Loading accessories...

Loading articles...

Frequently compared with

Current item

Loading...

Adding...

Bavsound Ghost BMW Underseat Subwoofers V3 8-ohm

Set of two 8-ohm woofers — replaces factory underseat subs in select BMW models (BSD.GUSW.8O-KIT)

In stock

5.0 out of 5 stars
1 review

$649.00 pair
Loading...

Adding...

Focal Inside ISUB BMW 2

Integration Focal Inside Series 8" 2-ohm subwoofer for select BMW models

In stock

3.0 out of 5 stars
3 reviews

$589.99 each
Loading...

Adding...

Focal Inside ISUB BMW4

Integration Focal Inside Series 8" 4-ohm component subwoofer for select BMW models

In stock

4.5 out of 5 stars
2 reviews

$589.99 each
Loading...

Adding...

MATCH UP W8BMW-S

Two 8" shallow-mount component subwoofers — designed to fit select BMW vehicles with under-seat subs

In stock

5.0 out of 5 stars
9 reviews

$750.00 pair

Compare all details

Compare the sound

SpeakerCompare^™

Patented Virtual Audio^™ technology

Brand

Model

Please turn active noise cancelling off for best results

Don't see your headphones?
Rent our Listening Kit

SpeakerCompare^™ is protected by patents and patent applications owned by Crutchfield Corporation.

SpeakerCompare^™

Patented Virtual Audio^™ technology

Audition speakers before you buy

SpeakerCompare simulates the sound of home and car speakers through your headphones. It lets you compare sonic characteristics between speakers so that you can make a more informed shopping decision.

To get started: For the best sound comparison, we recommend selecting your brand and model of headphones in the right-hand column, or if your headphones aren't listed, you can rent one of our Listening Kits.

SpeakerCompare^™ is protected by patents and patent applications owned by Crutchfield Corporation.

Start here

SpeakerCompare^™

Please turn active noise cancelling off for best results

EQUAL
POWER

EQUAL
VOLUME

What to listen for

Track notes

Artist:

We're here to help

For free personalized advice, call 1-888-291-8923. Our Advisors have listened to most of the speakers we carry, and can help you make the best choice for your system.

We'd love to know what you think

Audition speakers before you buy

SpeakerCompare simulates the sound of home and car speakers through your headphones. It lets you compare sonic characteristics between speakers so that you can make a more informed shopping decision.

Why selecting your headphones is important

SpeakerCompare tailors your listening experience to the exact headphones you have, so that what you hear is comparable to auditioning speakers side-by-side in person. Knowing which model headphones you’re using lets us remove any sonic coloring from your experience.

Two different listening modes

In an actual listening room, you'd find that some speakers play louder than others when fed the same amount of power. In equal power mode, you'll hear these differences in loudness as they naturally occur between speakers.

In equal volume mode, we've made the loudness of each speaker about the same. This gives you a more direct comparison of subtle voicing differences between speakers.

Nothing beats listening to speakers in your space

SpeakerCompare gives you a sense of the sonic differences. But performance in the real world is affected by the acoustics of your car or home, your choice of amplification, and your source material. We still believe that the gold standard for auditioning speakers is hearing them in your own environment — that’s why we offer a 60-day money-back guarantee.

Our Listening Kit

To help you choose the right speakers, we recommend using Crutchfield’s SpeakerCompare Listening Kit. It includes a pair of studio-quality headphones, and a guide to getting the most out of your session, and a few other necessary items. We’ve carefully chosen the components of this kit to ensure a crystal-clear listening experience. It’s available for a nominal rental fee, and includes a $25 Crutchfield merchandise credit.

Request a kit