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Sundown Audio U-18 D4 18 1500W RMS Dual 4-Ohm U-Series Subwoofer
The U series may be ready to start production soon. It is the most direct replacement for the discontinued Z v.3 series but at a much lower price. The woofers will have a similar sound to the Z v.3 series.
Sundown Audio U-18 D4 18" 1500W RMS Dual 4-Ohm U-Series Subwoofer
Item #: 9050205

Sundown Audio U-18 D4 18" 1500W RMS Dual 4-Ohm U-Series Subwoofer

Item #: 9050205

€ 695

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The U series may be ready to start production soon. It is the most direct replacement for the discontinued Z v.3 series but at a much lower price. The woofers will have a similar sound to the Z v.3 series.
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Note: Step Down Voltage Transformer required for using electronics products of US store (110-120). Recommended power converters Buy Now.

What Stands Out

Powerful Output
With 1500W RMS, the Sundown Audio U-18 D4 delivers unmatched bass output. It meets the demands of audiophiles longing for deep, booming sound that elevates their listening experience.
Dual Voice Coils
The dual 4-ohm impedance provides flexible wiring options. This allows users to achieve different configurations, optimizing performance and making it compatible with a variety of amplifiers.
Sturdy Build
Engineered for durability, the U-18 features a robust construction that withstands high power and extreme conditions. This ensures longevity and reliable performance, making it a smart investment for bass enthusiasts.

Product Details

Get ready to experience powerful bass with Sundown Audio U-18 D4 18 1500W RMS Subwoofer. Bridging the gap from SA to X v.2 series, it offers high performance at a lower price. Shop at Ubuy Malta
  • Sundown Audio U-18 D4 18 1500W RMS Dual 4-Ohm U-Series Subwoofer
  • Specifications: DC Resistance (Re): 6.1 Ω, Resonance Frequency (Fs): 31.4 Hz, Equivalent Volume (Vas): 135.4 L, Electrical Q Factor (Qes): 0.42, Mechanical Q Factor (Qms): 3.55, Total Q Factor (Qts): 0.38, Voice Coil Inductance (Le): 3.97 mH, Force Factor (BL): 35.3 NA, Moving Mass (incl. Air Load) (Mms): 441.3 g, Suspension Compliance (Cms): 0.06 mm/N, Sensitivity: 91.8 dB 1w / 1m
  • Box Recommendations: Sealed Enclosure Suggestion: 3.0 cu. ft., Ported Enclosure Suggestion: 4.0 cu. ft., Displacement: TBA, Depth: 10.11 in, Outside Diameter: 18.66 in, Cutout: 16.69 in
  • Recommended Tuning: 32 Hz, Recommended Port Area: 64 sq. in.
  • Features finalized terminal spacing, basket color, venting, cast aluminum surround clamp rings, etc.
  • RMS power rated at 1500-watts conservatively.
  • Motor design similar to X v.2 series but with one less magnet slug and magnet ID shorting ring.
  • Manufactured with 4 new cone bodies & surrounds based on Z v.3 18 surround geometry.
  • Features custom tooled cast aluminum vent spacers and surround bolt-on ring.
  • Offers a sound similar to the Z v.3 series with no new platform sound.
Item Weight54 lbs (24.49 kg)

Who Should Buy?

Suitable For
  • Bass Enthusiasts

    Ideal for users who enjoy deep, powerful bass in their audio experience, making music and movies more immersive.

  • Car Audio Installers

    Great choice for car audio professionals looking to install a high-performance subwoofer for custom sound systems.

  • Home Theater Systems

    Perfect for those building a home theater, providing deep bass that enhances movie watching and overall audio quality.

Not Suitable For
  • Space-Constrained Users

    Not suitable for users with limited space, as this subwoofer requires significant room for installation and optimal performance.

  • Occasional Listeners

    May not be ideal for casual music listeners who don't prioritize high power and deep bass in audio playback.

  • Budget-Conscious Buyers

    Higher price point may deter users looking for budget-friendly audio solutions without compromising on overall quality.

Product Description

Sundown Audio U-18 D4 18" 1500W RMS Dual 4-Ohm U-Series Subwoofer

About This Item

Introducing the Sundown Audio U-18 D4 18 1500W RMS Dual 4-Ohm U-Series Subwoofer, the perfect addition to your audio system. This subwoofer offers an unmatched performance that will take your car audio experience to the next level. With finalized terminal spacing, basket color, venting, cast aluminum surround clamp rings, and more, this U-Series subwoofer is the result of meticulous craftsmanship and a year of hard work. We are proud to say that it is nearly ready to start production. Designed as a bridge between the SA and X v.2 series, this subwoofer also serves as a direct replacement for the discontinued Z v.3 series at a much affordable price.

It boasts the same voice coil as the X v.2 series, providing a conservative 1500-watt RMS power. The motor of this subwoofer features a similar design to the X v.2 series, but with one less magnet slug. This change was made to optimize performance on these frames and soft parts. It also retains a magnet ID shorting ring, just like the X v.2 series motor. We have tooled four new cone bodies and surrounds that are compatible with an entirely different frame tooling from the first prototypes.

Based on the Z v.3 18 surround geometry, these surrounds have been our go-to choice for maximum SPL (sound pressure level) output. In fact, we even use these cones in our Terra for our World Record in the SS 3-4 class. Additionally, these cones feature wide-flange dust caps, just like all the new platform drivers from Sundown Audio. To ensure a perfect fit, we have included custom tooled cast aluminum vent spacers that mate up correctly to these frames.

We have specifically tooled two different spacers for this exceptional line. One of the standout features of this U-Series subwoofer is the cast aluminum surround bolt-on ring. This fully custom tooled accessory provides added durability and enhances overall performance. We have tooled one for each size U-Series subwoofer to ensure a perfect match. When it comes to sound quality, the Sundown Audio U-18 D4 offers a similar sound to the Z v.3 series.

It delivers powerful bass and accurate reproduction, making it an excellent choice for audiophiles and car enthusiasts alike. Whether you're looking to upgrade your current audio system or build an entirely new setup, this subwoofer will not disappoint. Experience the superior performance and exceptional build quality of the Sundown Audio U-18 D4 18 1500W RMS Dual 4-Ohm U-Series Subwoofer. Upgrade your audio system today and enjoy a truly immersive sound experience.

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Customer Questions & Answers

  • Question: What are the key specifications of the Sundown Audio U-18 D4 Subwoofer?

    Answer: The Sundown Audio U-18 D4 Subwoofer features an 18-inch diameter with a remarkable 1500W RMS power handling capability. It has a dual 4-ohm voice coil configuration, providing versatility for various wiring options. The subwoofer is designed for high performance with a robust surround and high excursion design, making it ideal for deep bass enthusiasts. Its large cone area and durable construction allow for effective sound reproduction, ensuring you enjoy a powerful bass experience whether for music, movies, or competitive audio applications.
  • Question: How do I wire the Sundown Audio U-18 D4 Subwoofer?

    Answer: Wiring the Sundown Audio U-18 D4 Subwoofer depends on your amplifier's specifications. You can wire it in series or parallel depending on your desired impedance. For a dual 4-ohm configuration, wiring them in parallel yields a 2-ohm load, while series wiring results in a 8-ohm load. Ensure your amplifier can handle the desired load and is suitable for the power output of the subwoofer. This flexibility allows you to customize your audio setup for optimal performance in various applications, from daily driving to competitive audio systems.
  • Question: What enclosure is best for the Sundown Audio U-18 D4 Subwoofer?

    Answer: The Sundown Audio U-18 D4 Subwoofer performs best in a properly constructed enclosure tailored to its specifications. A ported box is typically recommended for maximum bass output, providing the subwoofer ample space to move air effectively. You’ll want a volume of at least 6 to 12 cubic feet, depending on tuning preferences. Alternatively, a sealed enclosure may deliver a tighter bass response. Choosing the right enclosure enhances sound quality and performance, making a significant difference in how low frequencies are reproduced.
  • Question: What type of amplifier is recommended for the Sundown Audio U-18 D4 Subwoofer?

    Answer: Using an amplifier that can deliver 1500W RMS at either 2 or 8 ohms will optimize the performance of the Sundown Audio U-18 D4 Subwoofer. Look for a high-quality amplifier that can provide clean power without distortion, ensuring your audio remains crisp and clear. A mono block class D amplifier is a popular choice for subwoofers, providing efficient power handling while maintaining sound quality. This setup is ideal for users seeking to achieve high volume levels without compromising audio fidelity, making it suitable for both daily listening and competition.
  • Question: What can I expect in terms of sound quality from the Sundown Audio U-18 D4?

    Answer: Expect powerful, deep bass and exceptional clarity from the Sundown Audio U-18 D4 Subwoofer. The subwoofer is engineered for high excursion and remarkable output levels, ensuring that low-end frequencies are reproduced with precision. This makes it an excellent choice for genres like hip-hop or EDM, where bass plays a central role. Additionally, its quality construction minimizes distortion, allowing you to enjoy your favorite tracks at high volumes without losing audio integrity, whether in a vehicle or home theatre setup.
  • Question: Can the Sundown Audio U-18 D4 Subwoofer be used in a car audio system?

    Answer: Absolutely! The Sundown Audio U-18 D4 Subwoofer is well-suited for car audio systems, offering deep bass and dynamic sound. Its high power handling and dual 4-ohm configuration allow it to integrate seamlessly with various amplifiers, making it a versatile choice for any car audio enthusiast. Whether you're building a competition-grade setup or enhancing your daily driving experience, this subwoofer will ensure your audio system delivers thunderous bass that will elevate any journey.
  • Question: Is the Sundown Audio U-18 D4 Subwoofer suitable for home audio setups?

    Answer: Yes, the Sundown Audio U-18 D4 Subwoofer can be an excellent choice for home audio setups, providing extraordinary bass reproduction that enhances music, movies, and gaming. When incorporated into a home theatre system, it adds depth to soundtracks and effects, creating an immersive experience. Ensure that you pair it with an appropriate amplifier and enclosure to maximize performance, and you'll enjoy the powerful low-end frequencies that this subwoofer can deliver.
  • Question: How does the Sundown Audio U-18 D4 compare to other subwoofers on the market?

    Answer: The Sundown Audio U-18 D4 stands out in the subwoofer market due to its impressive power handling, build quality, and sound output. Compared to competitors, it offers a larger cone and robust design that contribute to deeper bass and greater excursion capabilities. Its unique features cater to both casual listeners and audiophiles, providing flexibility in wiring and enclosure options. This ability to perform well across various environments, whether in a vehicle or home, makes it a highly versatile choice for bass enthusiasts.
  • Question: What is the weight of the Sundown Audio U-18 D4 Subwoofer?

    Answer: The Sundown Audio U-18 D4 Subwoofer weighs approximately 45-50 pounds, making it a robust and substantial component. This weight is attributed to its durable construction and high-quality materials, which contribute to its performance and longevity. When considering installation, it's important to account for its weight, ensuring your setup can support the subwoofer effectively. Its solid build ensures that it can withstand high-output scenarios, ensuring a powerful audio experience without compromising performance.
  • Question: Where can I buy Sundown Audio U-18 D4 18 1500W RMS Dual 4-Ohm U-Series Subwoofer in Malta?

    Answer: You can purchase the Sundown Audio U-18 D4 18 1500W RMS Dual 4-Ohm U-Series Subwoofer through Ubuy, a popular online marketplace that offers a wide selection of audio products. Ubuy is known for its user-friendly interface, competitive pricing, and reliable service, making it a trusted platform for finding this subwoofer in Malta. Explore Ubuy’s website to check availability and more details on your desired audio gear.

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Pros

  • Powerful 1500W RMS output
  • Dual 4-ohm configuration
  • Excellent deep bass response
  • High build quality and durability
  • Great value for price

Cons

  • Requires proper enclosure design

Product Price History

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