MB Quart Discus 10 Inch Shallow Mount Car Subwoofers Alternatives: 6 Similar Picks Compared
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You are looking for mb quart discus 10 inch 400w alternatives because your installation needs may differ from the original. The MB Quart Discus pair offers 400W RMS and a shallow 10-inch design with dual 4-ohm coils. This setup works well for tight spaces where you need reliable bass without consuming much trunk volume. However, you might need more output, a different size, or a specific brand preference. Your current choice balances compactness with power, but it may not fit every vehicle layout or audio goal.
We selected 6 similar picks based on overlapping specifications. These alternatives share key traits like dual 4-ohm impedance and car audio application. Some options provide larger drivers for deeper bass, while others offer even smaller footprints for extreme space constraints. Each product listed handles specific installation scenarios, from sealed boxes to ported enclosures. You can compare their power handling, dimensions, and coil configurations to find the best match. This list helps you navigate the trade-offs between size, power, and mounting depth. Review the specs to see which subwoofer aligns with your vehicle's unique requirements.
Our top pick: MB Quart Discus 10 Inch Shallow Mount Car Subwoofers Pair.
How Skar and CT options differ
Skar Audio SDR-15 Pair 15-Inch Subwoofers
The Skar Audio SDR-15 Pair replaces the compact 10-inch design with massive 15-inch drivers. You gain significantly more displacement and potential low-frequency output, but you sacrifice space efficiency. These subwoofers weigh 44 pounds and require 18-inch width and height clearance. They are dual 4-ohm, matching the original's electrical configuration, but the physical footprint is much larger. You should choose this pair if you have ample trunk space and prioritize raw bass pressure over fitting the subwoofers into tight compartments. The trade-off is clear: maximum output for minimum space savings.
Skar Audio EVL-65 D4 6.5" Pair
The Skar Audio EVL-65 D4 Pair shifts from 10-inch to 6.5-inch drivers. You give up the deep bass extension of the larger MB Quart discs in favor of a much smaller footprint. These units weigh only 15.8 pounds and fit within 8 by 12 by 16 inches. Like the original, they feature dual 4-ohm coils for flexible wiring. This option suits you if you need to reinforce stereo bass in a small car without using a dedicated subwoofer box. You trade significant low-end impact for the ability to install the subwoofers in tighter, less intrusive locations within your vehicle.
Skar Audio SDR-12 D4 12" Dual 4-Ohm Subwoofer
The Skar Audio SDR-12 D4 moves up to a 12-inch driver size, offering more cone area than the 10-inch MB Quart Discus. It weighs 18.6 pounds and requires a 14.3-inch square footprint with 9.5 inches of height. It maintains the dual 4-ohm impedance, ensuring compatibility with your existing wiring plans. You gain potential for deeper bass and higher power handling, but you lose the shallow-mount advantage of the original. This pick is for you if you have a standard subwoofer box or enclosure and want more raw output than the 10-inch model can provide.
Skar Audio 8" Dual 4 Ohm Shallow Mount Subwoofer
The Skar Audio 8-inch Dual 4 Ohm Subwoofer offers a smaller 8-inch driver with a shallow mount design similar to the original. It weighs just 10 pounds and fits in a 10 by 10 by 7-inch space. While the MB Quart Discus provides 400W RMS, this Skar model lists 600 watts of peak power. You get a compact solution for tight spaces, but the smaller driver size means less low-frequency extension. This is a practical choice if you need a dual 4-ohm subwoofer that fits in very restricted areas where even a 10-inch shallow mount might not fit.
Skar Audio EVL-15 D4 15" Subwoofer
The Skar Audio EVL-15 D4 15-inch Subwoofer is a single large driver, unlike the pair of 10-inch MB Quart discs. It weighs 37.1 pounds and requires 15 inches of width and height. It is dual 4-ohm, matching the electrical specs, but the physical size is substantial. You gain extreme low-frequency depth and high power handling capabilities. This option is for you if you have a spacious trunk and want competition-level bass output. You sacrifice the stereo pairing and compact nature of the original for a single, massive driver focused on maximum impact.
CT Sounds Hydro 10" Shallow Mount Subwoofer
The CT Sounds Hydro 10-inch Shallow Mount Subwoofer matches the 10-inch size and shallow design of the original MB Quart Discus. It weighs less than the original pair and has a height of only 4.69 inches. It is dual 4-ohm, fitting the same electrical profile. You get a similar form factor but from a different brand. This alternative suits you if you need a shallow mount 10-inch subwoofer with dual 4-ohm coils but prefer a different enclosure flexibility or brand. It offers comparable space efficiency, making it a direct competitor for tight installations where depth is the primary constraint.
Quick picks
Our 7 picks
MB Quart Discus 10 Inch Shallow Mount Car Subwoofers Pair
Best for: limited space car audio installations
- Woofer Size
- 10"
- Power Handling
- 200W RMS, 400W max (per sub)
- Enclosure Type
- Shallow mount
- Impedance
- Dual 4 ohm
- Application
- Cars
- Configuration
- Pair
View on Amazon: MB Quart Discus 10 Inch Shallow Mount Car Subwoofers Pair Affiliate link
This pack of two MB Quart Discus subwoofers delivers strong bass in a compact 10-inch shallow mount design. Each unit handles 200 watts RMS, totaling 400 watts RMS for the pair, with a maximum power handling of 800 watts. The dual 4-ohm impedance offers flexible wiring options. You get a pair of black subwoofers built for car audio systems where space is limited but performance matters.
Pros
- Shallow 10-inch design fits tight vehicle spaces
- 400 watts RMS total power handling for stable bass
- Dual 4-ohm configuration allows versatile wiring setups
- Includes a pair of subwoofers for stereo output
Cons
- Lower maximum power rating compared to competitors offering 1000+ watts
- Requires external amplifier to drive the 400W RMS load
- No included mounting hardware or wiring kit in specs
Good fit if
- You need shallow subwoofers for limited trunk or kickpanel space
- You want a dual 4-ohm setup for flexible amplifier matching
- You prefer a pair of subwoofers for balanced stereo bass
Skip if
- You require high-power subwoofers exceeding 800 watts maximum
- You need a single subwoofer rather than a pair
- You prefer larger 12-inch or 15-inch drivers for maximum displacement
Verdict: MB Quart Discus 10 Inch 400W RMS Shallow Subwoofer is a solid choice for car audio enthusiasts who need reliable bass in a shallow package. It suits you best if you have space constraints and want a dual 4-ohm pair for flexible installation.
Skar Audio SDR-15 Pair 15-Inch Subwoofers
Best for: High-output bass in vehicles with space
- Woofer Size
- 15"
- Frequency Response
- 25 - 250 Hz
- Impedance
- Dual 4 Ohm
- Application
- Cars
- Configuration
- Pair
- Dimensions
- 18 × 18 × 24 inches
View on Amazon: Skar Audio SDR-15 Pair 15-Inch Subwoofers Affiliate link
You get two Skar Audio SDR-15 subwoofers in this pair. Each unit features a 15-inch pressed paper cone and dual 4-ohm voice coils. The RMS power rating is 600 watts per speaker, with a peak of 1200 watts. The frequency response spans 25 to 250 Hz. This setup suits buyers needing high output from large drivers in a vehicle.
Pros
- Includes a pair of 15-inch subwoofers
- 600 watts RMS power per speaker
- Dual 4-ohm impedance configuration
- Competition-grade pressed paper cone
Cons
- 15-inch size requires significant space
- Pair weighs 44 pounds total
- No shallow mount design
Good fit if
- You want maximum bass output from large drivers
- You need dual 4-ohm flexibility for wiring
- You have ample trunk or cargo space
Skip if
- You require shallow mounting under a seat
- You have limited cargo space for large drivers
- You prefer a single subwoofer installation
Verdict: Skar Audio SDR-15 Pair 15-Inch Subwoofers delivers high power and deep bass for those prioritizing output over space efficiency. It fits buyers who can accommodate large drivers and need dual 4-ohm wiring options.
Skar Audio EVL-65 D4 6.5" Pair
Best for: compact car stereo bass reinforcement
- Woofer Size
- 6.5"
- Impedance
- Dual 4 Ohm
- Application
- Cars
- Configuration
- Pair
- Dimensions
- 12 × 8 × 16 inches
- Weight
- 15.8 pounds
View on Amazon: Skar Audio EVL-65 D4 6.5" Pair Affiliate link
This pair of Skar Audio EVL-65 D4 subwoofers delivers 6.5-inch drivers with 200 watts RMS power each. The dual 4-ohm design offers wiring flexibility for various car audio systems. Weighing 15.8 pounds as a set, these black units are built for compact car installations. You get two units in one package, making them suitable for stereo setups where space is limited but you still want clear bass response.
Pros
- 6.5-inch woofer size fits tight spaces
- 200 watts RMS power per driver
- Dual 4-ohm impedance for flexible wiring
- Sold as a pair for stereo use
Cons
- Smaller 6.5-inch drivers limit deep bass output
- 200 watts RMS is lower than 10-inch alternatives
- No shallow mount depth specified in data
Good fit if
- You need a compact subwoofer for a small car
- You want a pair of subwoofers for stereo imaging
- You have dual 4-ohm amplifier channels available
Skip if
- You require deep sub-bass frequencies below 40 Hz
- You need a single high-power unit for a trunk
- You are looking for a shallow mount design under 3 inches
Verdict: Skar Audio EVL-65 D4 6.5" Dual 4 Ohm is a compact stereo pair for small cars. It suits drivers who prioritize space saving over maximum low-end impact.
Skar Audio SDR-12 D4 12" Dual 4-Ohm Subwoofer
Best for: car audio systems needing high power 12-inch bass
- Woofer Size
- 12"
- Power Handling
- 1200W peak, 600W RMS
- Frequency Response
- 22 Hz - 300 Hz
- Impedance
- Dual 4 Ohm
- Sensitivity
- 84.7 dB
- Application
- Cars
View on Amazon: Skar Audio SDR-12 D4 12" Dual 4-Ohm Subwoofer Affiliate link
The Skar Audio SDR-12 D4 is a 12-inch car subwoofer designed for high output. It handles 1200 watts peak and 600 watts RMS. The dual 4-ohm voice coil allows flexible wiring options. A 2.5-inch copper voice coil and ferrite motor support its performance. It fits buyers needing a large driver with moderate impedance for powerful bass in vehicles.
Pros
- 12-inch woofer size for deep bass
- 1200 watts peak power handling
- Dual 4-ohm configuration for wiring flexibility
- 2.5-inch 4-layer copper voice coil
Cons
- Sensitivity is 84.7 dB, which is modest
- Frequency response extends to 300 Hz, which is unusually high for a subwoofer
- Weighs 18.6 pounds, making it heavy for installation
Good fit if
- You need a 12-inch driver for maximum displacement
- You prefer dual 4-ohm wiring for amplifier compatibility
- You want high peak power ratings for loud bass
Skip if
- You require a shallow mount design for tight spaces
- You need high sensitivity for efficient power usage
- You are looking for a lightweight subwoofer under 15 pounds
Verdict: Skar Audio SDR-12 12-Inch Dual 4 Ohm Subwoofer offers high power handling and a large 12-inch driver for those prioritizing raw output over efficiency or compact size. It suits car audio enthusiasts who can accommodate its weight and specific impedance requirements.
Skar Audio 8" Dual 4 Ohm Shallow Mount Subwoofer
Best for: tight car spaces needing compact bass
- Woofer Size
- 8 inches
- Frequency Response
- 32 Hz - 375 Hz
- Impedance
- Dual 4 ohm
- Sensitivity
- 81.8 dB
- Application
- Cars
- Dimensions
- 10 × 10 × 7 inches
View on Amazon: Skar Audio 8" Dual 4 Ohm Shallow Mount Subwoofer Affiliate link
The Skar Audio VD-8 is an 8-inch shallow mount subwoofer designed for cars with tight spaces. It features a dual 4-ohm configuration and handles up to 600 watts peak power. The pressed paper cone and foam surround deliver a frequency response from 32 Hz to 375 Hz. With a shallow mounting depth of 3.94 inches, it fits where larger subs cannot. This model suits you if you need compact bass without sacrificing power handling.
Pros
- 8-inch woofer size for compact installations
- Dual 4-ohm impedance for flexible wiring
- Shallow 3.94-inch mounting depth
- 600-watt peak power handling
- Pressed paper cone for durability
Cons
- Smaller 8-inch driver limits low-end extension compared to 10-inch or 12-inch alternatives
- Lower 81.8 dB sensitivity may require more amplifier power
- Heavier 10-pound build compared to lighter shallow mounts
Good fit if
- You have limited trunk or under-seat space
- You want a dual 4-ohm configuration for specific amplifier setups
- You prioritize shallow mounting depth over maximum bass output
Skip if
- You need deep bass below 32 Hz
- You prefer larger 10-inch or 12-inch drivers for more output
- You want a subwoofer with higher sensitivity for easier amplification
Verdict: Skar Audio VD-8 Shallow Mount Subwoofer is a practical solution for tight spaces, offering 600 watts of peak power in an 8-inch package. It fits you if you need compact bass that handles moderate power without requiring deep mounting depth.
Skar Audio EVL-15 D4 15" Subwoofer
Best for: Maximum bass output in spacious trunks
- Woofer Size
- 15 Inch
- Frequency Response
- 20 Hz - 250 Hz
- Impedance
- Dual 4 Ohm
- Sensitivity
- 86.1 dB
- Application
- Cars
- Dimensions
- 15 × 15 × 10 inches
View on Amazon: Skar Audio EVL-15 D4 15" Subwoofer Affiliate link
This Skar Audio EVL-15 D4 is a 15-inch competition-grade car subwoofer with a dual 4-ohm configuration. It delivers 1,250 watts RMS and peaks at 2,500 watts. The unit features a 23.5 mm Xmax for deep bass response and operates between 20 Hz and 250 Hz. You should choose this model if you require maximum output from a single large driver rather than the shallow-mount form factor found in other alternatives.
Pros
- 15-inch woofer size for maximum air movement
- 1,250 watts RMS power handling
- 23.5 mm Xmax excursion depth
- Dual 4-ohm voice coil configuration
Cons
- 15-inch diameter is much larger than shallow-mount alternatives
- Weight of 37.1 pounds requires strong mounting support
- 86.1 dB sensitivity is lower than many competitors
Good fit if
- You need the deepest possible bass output from a single driver
- You have ample trunk space for a large enclosure
- You prefer a competition-grade build with high excursion
Skip if
- You require a shallow-mount design for tight spaces
- You need a lighter speaker for easy installation
- You prefer higher sensitivity for easier amplification
Verdict: Skar Audio EVL-15 15 Inch 1250W Subwoofer suits buyers prioritizing raw power and low-frequency depth over compact installation. It is ideal for those with ample trunk space who want a single large driver for competition-level bass.
CT Sounds Hydro 10" Shallow Mount Subwoofer
Best for: tight spaces with sealed or ported boxes
- Woofer Size
- 10"
- Power Handling
- 500W RMS / 1000W Max
- Enclosure Type
- Shallow mount, ported, sealed
- Impedance
- Dual 4-Ohm
- Application
- Cars
- Dimensions
- 10.9 × 10.9 × 4.69 inches
View on Amazon: CT Sounds Hydro 10" Shallow Mount Subwoofer Affiliate link
The CT Sounds Hydro 10-inch subwoofer delivers 500 watts RMS and 1000 watts max power. Its shallow design measures 3.90 inches in mounting depth, fitting tight spaces. With a dual 4-ohm voice coil, it offers flexible amplifier pairing. The unit performs well in both ported and sealed enclosures, making it a versatile option for car audio upgrades where space is limited.
Pros
- 500 watts RMS power handling
- Shallow 3.90-inch mounting depth
- Dual 4-ohm voice coil configuration
- Works in ported and sealed boxes
Cons
- Lower RMS power than 1200W competitors
- No remote control included
- No app connectivity
Good fit if
- You need a subwoofer for tight trunk spaces
- You prefer sealed or ported enclosure designs
- You want a dual 4-ohm configuration
Skip if
- You require high power output over 1000 watts
- You need smart app integration
- You prefer a remote control for bass adjustment
Verdict: CT Sounds Hydro 10" Shallow Subwoofer fits buyers with limited space who need reliable shallow-mount performance. It suits those who value flexible enclosure options over raw power output.
Specifications side by side
| Spec | MB Quart Discus 10 Inch Shallow Mount Car Subwoofers Pair | Skar Audio SDR-15 Pair 15-Inch Subwoofers | Skar Audio EVL-65 D4 6.5" Pair | Skar Audio SDR-12 D4 12" Dual 4-Ohm Subwoofer | Skar Audio 8" Dual 4 Ohm Shallow Mount Subwoofer | Skar Audio EVL-15 D4 15" Subwoofer | CT Sounds Hydro 10" Shallow Mount Subwoofer |
|---|---|---|---|---|---|---|---|
| Woofer Size | 10" | 15" | 6.5" | 12" | 8 inches | 15 Inch | 10" |
| Power Handling | 200W RMS, 400W max (per sub) | not stated | not stated | 1200W peak, 600W RMS | not stated | not stated | 500W RMS / 1000W Max |
| Enclosure Type | Shallow mount | not stated | not stated | not stated | not stated | not stated | Shallow mount, ported, sealed |
| Frequency Response | not stated | 25 - 250 Hz | not stated | 22 Hz - 300 Hz | 32 Hz - 375 Hz | 20 Hz - 250 Hz | not stated |
| Impedance | Dual 4 ohm | Dual 4 Ohm | Dual 4 Ohm | Dual 4 Ohm | Dual 4 ohm | Dual 4 Ohm | Dual 4-Ohm |
| Sensitivity | not stated | not stated | not stated | 84.7 dB | 81.8 dB | 86.1 dB | not stated |
| Application | Cars | Cars | Cars | Cars | Cars | Cars | Cars |
| Size | 10 Inch Pack of 2 | not stated | not stated | 12" - Dual 4 Ohm | 8" - Dual 4 Ohm | 15" - Dual 4 Ohm | 10" |
| Configuration | Pair | Pair | Pair | not stated | not stated | not stated | not stated |
| Dimensions | not stated | 18 × 18 × 24 inches | 12 × 8 × 16 inches | 14.3 × 14.3 × 9.5 inches | 10 × 10 × 7 inches | 15 × 15 × 10 inches | 10.9 × 10.9 × 4.69 inches |
| Weight | not stated | 44 pounds | 15.8 pounds | 18.6 pounds | 10 pounds | 37.1 pounds | not stated |
| Color | Black | Black | Black | Black | Black | Black | Black |
| Model | 2xDS1-254 | (2) SDR-15 D4 | BNDLE-EVL-65D4x2 | SDR-12 D4 | VD-8 D4 | EVL-15 D4 | HYDRO-10-D4 |
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Frequently asked questions
Which shallow mount subwoofer is best for limited trunk space?
The MB Quart Discus 10 Inch is the top pick for tight installations. It offers a shallow design with dual 4-ohm coils. This pair allows flexible wiring in confined areas. The CT Sounds Hydro 10 Inch is another strong option. It also features a shallow profile and dual 4-ohm configuration. Both fit well where depth is restricted.
Are dual 4-ohm subwoofers better for car audio systems?
Dual 4-ohm coils provide flexible wiring options for your amplifier. Most listed alternatives, including the MB Quart Discus and Skar Audio models, use this impedance. This setup lets you wire two subwoofers to a 2-ohm or 4-ohm load. It simplifies matching your subwoofers to various amplifier outputs without complex bridging or series wiring.
What is the difference between shallow and deep mount subs?
Shallow mount subwoofers, like the MB Quart Discus and CT Sounds Hydro, require less depth behind the panel. They fit in tight spaces where standard subs cannot. Deep mount subs, such as the Skar SDR-15, offer higher power handling but need more room. You choose shallow mounts for space efficiency and deep mounts for maximum output.
How much weight do 15-inch subwoofers add to a vehicle?
Large 15-inch subwoofers add significant weight to your vehicle. The Skar Audio SDR-15 Pair weighs 44 pounds. The single Skar EVL-15 weighs 37.1 pounds. These heavy drivers require sturdy mounting and a vehicle with ample trunk space. They are not suitable for compact cars or shallow enclosures due to their size and mass.
Can I use 6.5-inch subwoofers for deep bass?
Six-and-a-half-inch subwoofers, like the Skar Audio EVL-65, are not ideal for deep bass. They are designed for compact stereo bass reinforcement. These small drivers save space but lack the displacement for low-frequency impact. You should choose larger 10-inch or 12-inch models if you want substantial low-end response. The EVL-65 suits only those prioritizing space over power.
Which subwoofer offers the highest power handling?
The Skar Audio EVL-15 15 Inch offers the highest power handling among these options. It is designed for raw power and competition-level bass. The Skar Audio 8 Inch Shallow Mount also handles high peak power in a small package. For balanced performance, the MB Quart Discus provides reliable 400W RMS output. Choose based on your need for volume versus space.
Do these subwoofers come in pairs?
Several options in this list are sold as pairs. The MB Quart Discus 10 Inch is available as a pair. The Skar Audio SDR-15 Pair and EVL-65 D4 6.5" Pair also come as two units. This allows you to install two subwoofers for stereo imaging or increased output. Single units like the Skar SDR-12 D4 are sold individually.
What size subwoofer fits in a small car?
For small cars, the Skar Audio EVL-65 D4 6.5" is the best choice. It is compact and saves space while reinforcing bass. The Skar Audio 8 Inch Shallow Mount is also practical for tight areas. The MB Quart Discus 10 Inch works if you have slightly more room. Avoid large 15-inch models like the Skar EVL-15, which require spacious trunks.