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The Best Best 4 Inch Subwoofer of 2023 – Reviewed and Top Rated

After hours researching and comparing all models on the market, we find out the Best Best 4 Inch Subwoofer of 2023. Check our ranking below.

2,302 Reviews Scanned

Rank No. #1

Klipsch R-100SW 10" Subwoofer, Incredibly Deep Bass and an All-digital Amplifier,14 5" x 12 5" x 16 4"

10" front-firing spun-copper IMG woofer
All-digital amplifier with 300 watts peak power
Volume low pass crossover and phase control
Line level LFE RCA inputs for maximum receiver compatibility
Dimensions 14 5" x 12 5" x 16 4"

Rank No. #2

Sound Town Pair of 18" 2400W Powered Subwoofers with Class-D Amplifiers, 4" Voice Coils, High-Pass Filters (METIS-18PWG-PAIR)

MASSIVE POWER: The subwoofer set includes two METIS-18PWG powered subwoofers. The METIS-18PWG is powered by a built-in Class-D amplifier and handles 700 Watts RMS / 1400 Watts Program / 2400 Watts (8-ohm) peak power and generates punchy and tight bass
VERSATILE INPUT OUTPUT CONNECTIONS: Easy to integrate the METIS-18PWG stage subwoofer with your PA rig. It has 2 XLR-1/4“ combo and 2 RCA inputs, 2 through and 100Hz high-pass XLR outputs, 2 RCA outputs and provides great connection and flexibility. The 35mm pole mount socket accommodates a satellite speaker for optimal full-range PA performance
HIGH-PERFORMANCE AND LIGHTWEIGHT: The Class-D amplifier efficiently provides enormous power without weighing you down. Thanks to the Class-D topology, the high-output 18” PA subwoofer is powerful and lightweight
TOP-QUALITY COMPONENTS: The PA subwoofer comes with a top-quality 18” subwoofer and 4” voice coil, which handles massive power and generates earth shaking bass. The high-quality 5/8” birch plywood front and rear panels are designed to resist distortion at high output levels and provide punchy and focused bass
STURDY CONSTRUCTION: The black carpet finish with heavy-duty metal grille and corners holds up to touring applications. Two recessed ergonomic handles make it easy to transport

Rank No. #3

Rockville RHB70 Home Theater Compact Powered Speaker System, Bluetooth/USB/SD/FM, 4" Subwoofer, 2.1 Channel, 100W Peak, Cherry Wood Finish, for Home Entertainment

POWERFUL 2.1 CHANNEL SOUND: Features a 4" subwoofer and (2) 3" speakers with built-in high-power amplifier for rich lows and clear highs; delivers 25W RMS, 50W program, and 100W peak output.
FLEXIBLE PLAYBACK OPTIONS: Stream audio via Bluetooth or use the USB, SD card (up to 32GB), RCA, and 3.5mm AUX inputs for easy connection to TVs, phones, laptops, and more.
ELEGANT AND COMPACT DESIGN: Cherry wood enclosure with LED display offers a stylish look and compact footprint (4.73" W x 9.65" H x 10.64" D) that fits on desks, shelves, or counters.
EASY-TO-USE CONTROLS: Digital front panel and included remote control let you adjust volume, change tracks, and switch inputs effortlessly from across the room.
ENTERTAINMENT READY: Ideal for enhancing movies, music, FM radio, or gaming setups in apartments, bedrooms, or small living spaces.

Rank No. #4

Suacopzar 4 Inch PVC Finish Subwoofer Box, Single Car Speaker Enclosure, Car Ported Speaker Enclosure Car Audio Enclosure, Single Sub Box Enclosure with Sound-Absorbing Cotton & Speaker Spikes Pad Mat

Improve Speaker Performance: Wooden speaker enclosures are intended to enhance speaker systems' audio quality and bass response. Wood can capture a wide range of sounds and resist regular sound-dampening obstacles. With durable PVC veneer finish provides excellent protection against scratches and wear, ensuring your speaker enclosure maintains its premium look over time. There's no limit to customize the look: tinted colors, unique stains, it's all up to you
Stylish Design & Practical: This square speaker enclosure is designed for a sleek fit in any room, offering a modern aesthetic with its PVC veneer finish that complements various interior decors. The sound in your living space will be richer if you choose speakers with a wooden cabinet
High Value for Wooden Speaker Box: One of the greatest building materials that sound aficionados can purchase is wood since it's being naturally acoustic. Wood is energetic, resonant, and enthusiastically conveys vibrations. The sound quality of a speaker cabinet constructed of wood is superb
Come with Sound-absorbing Cotton & Foot Pads: High-quality sound-absorbing cotton may muffle sound waves and lessen the speaker's strong vibrations' impact on the speaker's structural integrity. There is adhesive on the back to stick it, and you will not worry about the displacement of the sound-absorbing cotton. Thanks to the included non-slip foot pads, you can easily position and move this speaker box without causing damage to surfaces or leaving marks behind
Size of Speaker Enclosure: 4 Inches Speaker Enclosure(168mm x 168mm x 178mm/ 6.6" x 6.6" x 7", Hole Diameter: 95mm / 3.7" (NOTE: Please allow slightly measuring deviation due to manual measurement. And please check the sizes of your speaker before ordering)

Rank No. #5

4" Speaker Grill Covers, Car Speaker Subwoofer Guard Protector, ABS Plastic Frame with Metal Mesh, Black - 2Pcs

Material: ABS plastic frame + metal mesh, the round frame is more advanced, sturdy and easy to clean
Frame Outer Diameter: 142mm / 5.6'', Inner Diameter: 102mm / 4'', Grill Thickness: 15mm / 0.59''
Screw Hole Diameter: 4.5mm, Mount Hole Distance: 116mm / 4.5"
Suitable for 4" DIY speakers and cars speaker decorative circle, Protect your Subwoofer from cuts, rips and dents
NOTE: our product is two-piece design, after the screws are installed, the joint between the screen cover and the frame needs a small amount of glue for reinforcement, to prevent the screen cover from fell off in vibration

Last update on 2025-07-05 / Affiliate links / Product Titles, Images, Descriptions from Amazon Product Advertising API

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Features: What bells and whistles matter for an Best 4 Inch Subwoofer?
Specifications: How powerful they are can be measured.
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FAQ:

Q: How big of a subwoofer do I Need?

A: The size of subwoofer that you need depends on your other speakers and the size of the space where you want to use the speaker. When you look at size, its not actually the inches that count, but the ohm measurement. A 4-ohm sub can wire into an audio system as a 2 ohm or an 8 ohm due to the voice coil that is inside.

Q: What makes a subwoofer different from other speakers?

A: A subwoofer is the speaker that produces bass and lower frequencies, whereas other speakers produce the high and mid audio sounds. Inside is a cone that moves back and forward.

Q: Can a 4 ohm subwoofer wire into a 2 ohm system?

A: A 4-ohm sub can wire into an audio system as a 2 ohm or an 8 ohm due to the voice coil that is inside. Are There Different Kinds of Subwoofers?

Best 4 Inch Subwoofer