Will this fit my truck's shallow sub location?

It needs about 3-5/16 inches of mounting depth, so measure your location first. It fits many factory shallow spots behind seats and in side panels.

What amplifier power does it need?

It is rated 250 W RMS with 1000 W peak, and its 92 dB sensitivity means a modest amplifier drives it well. Match an amp rated for 2 or 4 ohms at that power.

How does the impedance switch work?

A switch on the sub selects 2-ohm or 4-ohm operation, so you can match it to your amplifier without buying a different model.

Does it come with a grille or enclosure?

No. The sub ships without a grille and without an enclosure, so plan for a shallow sealed box and a grille if the cone will be exposed.

Is it better than a standard-depth sub?

Only if space is your limit. A standard-depth sub in a proper box will play deeper and louder, while this one wins on fitting tight locations.

Where is the Infinity REF Shallow Mount Subwoofer cheapest?

At AVLeaderz, for $127.95, as of our latest check.

What do buyers say about the Infinity REF Shallow Mount Subwoofer?

Rated 4.9 out of 5 from 25 ratings.

Where can I buy the Infinity REF Shallow Mount Subwoofer?

3 stores we checked sell it, including Walmart, AVLeaderz, SonicElectronix.com.

Infinity REF Shallow Mount Subwoofer

Best price now

$127.95at AVLeaderzChecked 10 h ago

Compared across 3 stores. Prices are checked against each store and labelled with when.

Visit AVLeaderz

Infinity REF Shallow Mount Subwoofer

Best price now

$127.95at AVLeaderzChecked 10 h ago

Compared across 3 stores. Prices are checked against each store and labelled with when.

Visit AVLeaderz

Ask our agent about this product

It checks today's price at every store, compares the alternatives and answers in about a minute.

Price facts

Lowest price today: $127.95 at AVLeaderz (checked Nov 10, 2026).
Checked at 3 stores.

Our take on the Infinity REF Shallow Mount Subwoofer

The Infinity REF shallow-mount subwoofer is a 10-inch-class car sub built to fit where a standard sub cannot, with a mounting depth of about 3-5/16 inches. Its standout feature is Harman's SSI switchable impedance: a flip of a switch selects 2 or 4 ohms, so one sub works with a wide range of amplifiers. It handles 250 W RMS and 1000 W peak, and its 92 dB sensitivity means it gets loud on modest power. It suits truck owners, hatchback and coupe drivers, and anyone with a shallow factory location who wants real bass without giving up cargo space. Against rivals it trades deep-box output for fit, so shoppers wanting maximum low-end from a large enclosure should look at standard-depth subs instead.

Best forTrucks and cars with shallow factory sub locationsSpace-limited installs behind seats or in side panelsOwners upgrading a factory system on modest amplifier powerBuilders who want one sub that fits 2-ohm or 4-ohm systems

Pros

Very shallow mounting depth fits tight spaces
Switchable 2-ohm or 4-ohm impedance widens amplifier matching
High 92 dB sensitivity makes the most of modest power
Dual voice coil and polypropylene cone are proven, durable construction
Rated for OEM-level reliability testing

Cons

Grille not included, so the cone is exposed unless you buy one
Shallow design gives less deep-bass output than a full-depth sub in a large box
Needs a sealed shallow enclosure sized for it to sound its best
Only 250 W RMS, so it is not a competition-level output sub

Infinity REF Shallow Mount Subwoofer prices at every store

AVLeaderzNew
In stock
$127.95Checked 10 h ago
Visit AVLeaderz
SonicElectronix.comNew
In stock
$129.99Checked 10 h ago
Visit SonicElectronix.com
WalmartNew
Out of stockSold by Techronics
$99.00Checked 10 h ago
Visit Walmart

Infinity REF Shallow Mount Subwoofer price history

Lowest price we've seen: $99.00 on Nov 10 at Walmart. Tracked across 3 stores since Nov 10.

What reviewers say

4.9 / 525 ratings

Owners rate it very highly, and the recurring theme is that it delivers solid bass from a very shallow package. Reviewers like the impedance switch and the build quality for the size.

What people mention

FitPraisedOwners say the shallow depth lets it go where standard subs cannot.
Bass outputMixedReviewers call the bass punchy for its size but note it will not dig as deep as a full-depth sub.
Impedance switchPraisedThe selectable 2-ohm or 4-ohm setting is called a real convenience for matching amplifiers.
BuildPraisedBuyers describe the construction as solid and durable.
GrilleCriticisedSome owners note no grille is included, leaving the cone exposed.

Specifications

RMS Output: 250 W
Maximum Output: 1000 W (Peak)
Amplification Type: Class AB (preferred by the reviewer's amplifier)
Bluetooth: No
Connectivity Type: Wired
Ports & Interfaces: Auxiliary
Dual Voice Coil: Yes

Questions and answers

Will this fit my truck's shallow sub location?: It needs about 3-5/16 inches of mounting depth, so measure your location first. It fits many factory shallow spots behind seats and in side panels.
What amplifier power does it need?: It is rated 250 W RMS with 1000 W peak, and its 92 dB sensitivity means a modest amplifier drives it well. Match an amp rated for 2 or 4 ohms at that power.
How does the impedance switch work?: A switch on the sub selects 2-ohm or 4-ohm operation, so you can match it to your amplifier without buying a different model.
Does it come with a grille or enclosure?: No. The sub ships without a grille and without an enclosure, so plan for a shallow sealed box and a grille if the cone will be exposed.
Is it better than a standard-depth sub?: Only if space is your limit. A standard-depth sub in a proper box will play deeper and louder, while this one wins on fitting tight locations.
Where is the Infinity REF Shallow Mount Subwoofer cheapest?: At AVLeaderz, for $127.95, as of our latest check.
What do buyers say about the Infinity REF Shallow Mount Subwoofer?: Rated 4.9 out of 5 from 25 ratings.
Where can I buy the Infinity REF Shallow Mount Subwoofer?: 3 stores we checked sell it, including Walmart, AVLeaderz, SonicElectronix.com.

Stores we've priced the Infinity REF Shallow Mount Subwoofer at

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Speaker Type

Subwoofer

Impedance

2 ohm or 4 ohm (switch selectable)

Sensitivity

92 dB

Audio Highlights

Harman-Proprietary SSITM (Selectable Smart Impedance)

Vehicle Type

Car

Compatible Devices

All

Enclosure Type

Shallow enclosures

Material

Polypropylene (woofer cones)

Mounting Type

Shallow Mount

Yes

Hardware Included

Grille not included

Mounting Depth

3-5/16 in

Weight

12.9

Depth

3.2 in

Height

30.48 cm

Width

30.48 cm