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Item #:
132473336
Sundown Audio U-15 D4 15" 1500W RMS Dual 4-Ohm U-Series Subwoofer
90% of respondents would recommend this to a friend
Item #:
132473336
SAR 6390
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Order now and get it around Friday, September 18
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Sundown Audio U-15 D4 15'' 1500W RMS Dual 4-Ohm U-Series Subwoofer 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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What Stands Out
Powerful Output
Delivers 1500W RMS, ensuring deep and impactful bass that enhances any audio experience, making it ideal for audiophiles and music enthusiasts seeking high-performance sound quality.
Dual 4-Ohm Design
Offers versatile wiring options for improved compatibility with various amplifiers, enabling users to customize their sound system to fit unique preferences and setups.
High-Quality Build
Engineered with premium materials for durability and longevity, ensuring consistent performance over time, which provides value and reliability that exceeds competitors' offerings.
Product Details
- 15-inch subwoofer with 1500W RMS power handling and dual 4-ohm voice coils
- Features a DC Resistance of 6.1 Ω and a Resonance Frequency of 34.9 Hz
- Equipped with an Electrical Q Factor of 0.39 and a Sensitivity of 90.2 dB 1w/1m
- Suitable for sealed enclosure with a suggested volume of 2.0 cu. ft. or ported enclosure with 3.0 cu. ft.
- Has an outside diameter of 15.59 in, a depth of 9.05 in, and a recommended tuning of 32 Hz
- Recommended port area is 48 sq. in. with a displacement of 0.24 cu. ft.
| Audio Output Mode | Surround |
| Mounting Type | Flush Mount |
| Enclosure Material | Aluminum |
| Speaker Type | Subwoofer |
| Product Features | tweeters |
| Antenna Location | For Car Audio Systems |
| Subwoofer Speaker Diameter | 15 Inches (38.1 cm) |
| Colour | blue |
| Is Waterproof | FALSE |
| Control Method | Voice |
| Speaker Size | 15 Inches (38.1 cm) |
| Woofer Driver Diameter | 15 Inches (38.1 cm) |
| Tweeter Diameter | 1 Inches (2.5 cm) |
| Water Resistance Level | Not Water Resistant |
| Specific Uses For Product | Car, Home |
| MP3 player | No |
| Controller Type | ring |
| Item Dimensions D x W x H | 23D x 39.6W x 39.6H centimetres |
| Item Weight | 22.16 Kilograms |
| Compatible Devices | Desktop, Television, Projector, Laptop |
| Compatible with Vehicle Type | Car |
| Power Source | Corded Electric |
| Brand Name | Sundown Audio |
| Model Number | U-15 |
| Model Name | U-15 D4 |
| Box Contents | Subwoofer |
| Number of Items | 1 |
| Series Number | 1 |
| UPC | 796516055152 |
| Manufacturer | Sundown Audio |
| Maximum Speaker Output Power (in watts) | 1500 Watts |
| Frequency Response | 34.9 Hz |
| Number of Audio Channels | 6.1 |
| Impedance | 4 Ohms |
| Network Connectivity Technology | wired |
| Wireless Technology Type | No Wireless Communication Technology |
| Subwoofer Connectivity Technology | Wired |
| Connectivity Protocol | aux, RCA, XLR, coaxial, HDMI, USB |
| Audio Driver Type | Dynamic Driver |
| Audio Driver Size | 15 Inches (38.1 cm) |
| Number Of Circuits | 1 |
| Brand | Sundown Audio |
| Speaker maximum output power | 1500 Watts |
| Connectivity technology | wired |
| Material | Aluminum |
| Special feature | tweeters |
Who Should Buy?
-
Car Audio Enthusiasts
Those looking for powerful bass in their car audio systems will benefit from the U-15's high RMS capacity.
-
Home Theater Users
Ideal for home theater setups that demand deep low-end sound to enhance the overall viewing experience.
-
Bass Competitors
Perfect for competitors seeking a subwoofer that delivers significant output and sound quality for competitions.
-
Space Constraints
Users with limited space may find the large size of the U-15 challenging to fit in their setup.
Product Description
Sundown Audio U-15 D4 15" 1500W RMS Dual 4-Ohm U-Series Subwoofer
Have any Query? Chat with us
Customer Questions & Answers
-
Question:
Can we expect any more upgrades in the coming series?
Answer: There is no information on future upgrades, but stay tuned for more updates on the U-Series Subwoofer -
Question:
How is the new series different from the X, Z, and NS series?
Answer: The new series retains Magnet ID shorting ring and has sounds similar to the Z v.3 series -
Question:
What is the ideal enclosure size for the subwoofer?
Answer: The ideal enclosure size for the subwoofer is 2.0 cu. ft. in Sealed and 3.0 cu. ft. in Ported.
Sundown Audio Component Subwoofers U-15 Editorial Review
The Sundown Audio U-15 D4 15" Dual 4-Ohm Subwoofer has garnered a strong following among car audio enthusiasts, receiving high praise for its performance and reliability. Reviewers frequently remark on the subwoofer's ability to deliver astonishingly loud and powerful bass that can rattle windows and shake car interiors. Many users report a significant improvement in sound output compared to their previous sub setups, with one reviewer noting an impressive 152.3 dB achieved by two U-15s in a custom ported box, which outperformed a previous Skar VFX installation that produced 150.8 dB under the same conditions. Customers have noted that the U-15 is not only loud but also incredibly tough and reliable, often able to handle more power than its RMS rating without even warming up. This durability helps build confidence in its longevity and performance under heavy use. Several users recommend pairing the sub with specific amplifiers for optimal results, further enhancing the sound quality and volume. The overarching sentiment is one of satisfaction and approval; customers have expressed no regrets about their decision to choose the U-15 over competitors. Reviewers encourage those who are seeking impactful bass and impressive sound quality to look no further than this subwoofer. **
Customer Reviews & Ratings
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Pros
- Exceptionally loud and powerful bass output
- High durability and reliability
- Handles more power than rated without overheating
- Improved performance over previous sub setups
- Positive sound quality (SQ) feedback when tuned correctly
- Strong community support and recommendation for optimal setups
Cons
- Requires proper tuning and potentially a custom box for best performance
Platform Trust & Buyer Confidence
MA
Mekki
Verified buyer
“Arrive before time, excellent products”
9 July 2026 · via Trustpilot
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Farrah
Verified buyer
“A very big Thank you to HUDA and the Ubuy Team in helping to send my order to me yesterday!! Order # 62606425316 Customer service and operations is top for this online shopping company and I am very satisfied with the way they handle issues. THANK YOU once again!!”
25 June 2026 · via Trustpilot
AF
Anila
Verified buyer
“Good experience of shopping through Ubuy.”
16 June 2026 · via Trustpilot
MG
Mohamed
Verified buyer
“We feel very good about the delivery time, and the materials we received matched our order.”
14-Jul-26 · via Trustpilot
E
Essam
Verified buyer
“Perfect service and fast delivery.”
16-Jul-26 · via Trustpilot
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SAR 6390
Order now and get it around Friday, September 18
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Features & Benefits
- U-Series Subwoofer is a direct replacement for the discontinued Z v.3 series
- The new series retains magnet ID shorting ring of X v.2 series
- Custom tooled cast aluminum surround bolt-on ring and vent spacers
- RMS power is 1500-watts
- Ideal for SPL
- Box Recommendations: 2.0 cu. ft. (Sealed), 3.0 cu. ft. (Ported)
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