7 Best Car Radios for Subwoofers (Researched and Compared)

Upgrading your car’s subwoofer requires a head unit that can deliver a clean, strong signal. We researched and compared dozens of models based on manufacturer specifications, industry standards, and aggregated owner feedback. Our evaluation focuses on preamp voltage, built-in subwoofer controls, low-pass filters, and overall sound quality. Here are the best car radios for subwoofers to complete your audio system.

1. Pioneer DEH-S6220BS: Best Overall

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After comparing spec sheets and owner feedback, the Pioneer DEH-S6220BS stands out as the top choice for subwoofer enthusiasts. Its 4V preamp outputs deliver a strong, clean signal to your amplifier, minimizing noise and ensuring tight bass. The 13-band equalizer allows precise tuning, and the dedicated subwoofer level control lets you adjust bass on the fly. Owner reviews frequently praise its ability to make subwoofers sound punchy without distortion.

However, this unit lacks Bluetooth audio streaming. If you rely on wireless music, you might need to look elsewhere. It also has a relatively basic display that may feel dated. We recommend this for users who prioritize sound quality over connectivity and don’t mind a wired connection for their phone.

• 4V preamp outputs for clean signal to subwoofer amp
• 13-band graphic EQ with subwoofer level and phase control
• Built-in low-pass and high-pass filters (50-125 Hz)

Pros: Excellent sound customization for subwoofer integration; High preamp voltage reduces noise
Cons: No Bluetooth for hands-free calling (calls only, no audio streaming)

2. Kenwood Excelon KMM-X705: Best Features

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In our evaluation, the Kenwood Excelon KMM-X705 offers the highest preamp voltage at 5V, which translates to a noise-free signal path for subwoofers. The 13-band equalizer includes subwoofer level, phase, and slope adjustments, giving you total control over bass response. Owner feedback highlights the time alignment feature for creating a soundstage that makes the subwoofer blend seamlessly with speakers.

That said, this is a digital media receiver with no CD slot. If you still play CDs, this won’t work. Some users also note the interface can be complex for beginners. We recommend this for audiophiles who want maximum tuning flexibility and are comfortable with a digital-only setup.

• 5V preamp outputs for ultra-clean signal to sub amp
• 13-band EQ with subwoofer level, phase, and slope control
• Digital time alignment for precise sound staging

Pros: Highest preamp voltage in its class (5V); Extensive subwoofer tuning options
Cons: No CD player (digital media receiver only)

3. Sony DSX-GS80: Best Built-In Amplifier

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Based on manufacturer specs, the Sony DSX-GS80 includes a robust built-in amplifier that can drive a subwoofer directly (up to 4 ohms). It also has a dedicated subwoofer output with a low-pass filter and level control. Owner reviews appreciate the Dynamic Stage Organizer for creating a wide soundstage. For those wanting a simple setup without an external amp, this is a strong contender.

However, the built-in amp is limited to 55W RMS per channel, which may not be enough for high-power subwoofers. If you plan to run a large subwoofer, you’ll still need an external amplifier. Also, the user interface can be a bit slow. We recommend this for users who want a clean, all-in-one solution for moderate bass needs.

• Built-in 4x55W RMS amplifier can power subwoofer directly (4 ohm)
• Subwoofer output with low-pass filter and level control
• Dynamic Stage Organizer for enhanced sound imaging

Pros: Powerful built-in amp saves need for external amp in some setups; Extra subwoofer output with dedicated controls
Cons: Built-in amp may not satisfy high-power subwoofer demands

4. Alpine UTE-73BT: Best Value

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In our research, the Alpine UTE-73BT offers a solid feature set at a very competitive price point. It includes a 9-band EQ, subwoofer level control, and Bluetooth streaming. Owner feedback highlights its reliability and ease of use. For budget-conscious buyers, this is a dependable choice that still allows decent subwoofer integration.

The main limitation is the 2V preamp outputs, which are lower than premium units. This can introduce noise if you run long RCA cables to a subwoofer amp. Also, the EQ is less granular than 13-band models. We recommend this for those on a tight budget who are using short cable runs and don’t need extreme tuning.

• 2V preamp outputs with subwoofer level control
• 9-band equalizer with low-pass and high-pass filters
• Bluetooth for audio streaming and hands-free calling

Pros: Great value for the price; Reliable Bluetooth performance
Cons: Only 2V preamp outputs (higher noise risk with long cables)

5. JVC KW-M785BW: Best Touchscreen

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According to manufacturer specs, the JVC KW-M785BW brings a modern touchscreen experience with Apple CarPlay and Android Auto. It includes subwoofer level control and a low-pass filter, allowing basic subwoofer tuning. Owner reviews love the screen quality and ease of use. For those who want a visual interface and phone mirroring, this is a top pick.

However, its 2V preamp outputs are on the lower end, which can lead to noise if not properly shielded. The subwoofer controls are also more basic compared to dedicated audio units. We recommend this for users who prioritize a sleek dashboard look and smartphone integration over ultimate sound quality.

• 6.8-inch capacitive touchscreen with customizable interface
• 2V preamp outputs with subwoofer level and low-pass filter
• Apple CarPlay and Android Auto for seamless phone integration

Pros: Large, responsive touchscreen; Full smartphone integration
Cons: Low preamp voltage (2V) may require better shielding

6. Boss Audio Systems BVNV9384C: Budget Pick

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The Boss BVNV9384C is a budget-friendly option that still offers a subwoofer output with basic controls. It includes a touchscreen and built-in navigation, which is rare at this price. Owner feedback indicates it works well for basic subwoofer setups, but sound quality is not on par with premium brands.

We found that the preamp outputs are noisy if not carefully routed, and the touchscreen can be sluggish. The subwoofer control is minimal. We recommend this only for those with a very tight budget who need navigation and are willing to accept compromises in audio fidelity.

• 6.2-inch touchscreen with navigation and Bluetooth
• 2V preamp outputs with dedicated subwoofer output
• Built-in low-pass filter and subwoofer level control

Pros: Very affordable with many features; Includes GPS navigation
Cons: Build quality and sound quality are average

7. Dual Electronics XDCPA11BT: Entry Level

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The Dual XDCPA11BT is the most affordable option we evaluated. It includes a subwoofer output with basic level and filter controls, plus Bluetooth. Owner reviews note that it works for adding a subwoofer, but the sound quality is mediocre and the preamp outputs introduce noticeable hiss.

We found that the low-pass filter is not very effective, and the unit lacks EQ adjustments. This is best for someone who just wants to add a subwoofer to an old car on a minimal budget and doesn’t expect high-fidelity audio. If you care about sound quality, skip this one.

• 2V preamp outputs with subwoofer output
• Bluetooth for audio streaming and hands-free calling
• Basic subwoofer level control and low-pass filter

Pros: Lowest price point for a subwoofer-capable radio; Simple interface
Cons: Poor sound quality and high noise floor

Frequently Asked Questions

What preamp voltage do I need for a subwoofer?

Higher preamp voltage (4V or 5V) delivers a stronger signal to your amplifier, reducing noise and improving bass clarity. For most subwoofer setups, 4V is recommended. 2V can work but may introduce noise with long cable runs.

Do I need a separate amplifier for my subwoofer?

Most car radios have limited built-in power (typically 15-25W RMS) that is insufficient for subwoofers. You will need an external amplifier unless you choose a radio with a high-power built-in amp like the Sony DSX-GS80, but even then, a dedicated subwoofer amp is better for deep bass.

What is a low-pass filter and why is it important?

A low-pass filter allows only low frequencies (bass) to pass to the subwoofer, blocking higher frequencies. This prevents distortion and ensures the subwoofer plays only the bass it is designed for. Most radios in this guide include adjustable low-pass filters.

Can I use the factory subwoofer with an aftermarket radio?

Yes, but you may need an adapter harness or amplifier if the factory subwoofer is powered. Many aftermarket radios have subwoofer outputs that can connect directly to an aftermarket amp, but factory systems often require integration modules.

What does subwoofer phase control do?

Subwoofer phase control adjusts the timing of the subwoofer’s output relative to the main speakers. Proper phase alignment ensures the bass waves from the subwoofer and speakers add together rather than cancel out, resulting in fuller bass.

Our Verdict

After researching and comparing specifications and owner feedback, the Pioneer DEH-S6220BS is our top pick for the best car radio for subwoofers due to its 4V preamp outputs, extensive EQ, and subwoofer controls. For those wanting advanced tuning, the Kenwood Excelon KMM-X705 is an excellent runner up with 5V outputs and time alignment.