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Description
Description
The DOWN4SOUND DBz-10 D4 is built for car audio enthusiasts seeking massive bass, rugged performance, and unbeatable value. Delivering a true 1300W RMS, this subwoofer produces strong, punchy bass without demanding a premium budget. With a dual 4-ohm voice coil configuration, the DBz-10 D4 offers wiring flexibility for a wide variety of amplifier setups. Its real carbon fiber dustcap adds a sleek aesthetic while improving rigidity and long-term durability.
Built to perform in both compact and mid-sized enclosures, the DBz-10 D4 delivers serious output for daily drivers, demo setups, and cost-effective high-performance builds.
Key Features
- 1300W RMS power handling
- Dual 4-ohm voice coil design
- 2.75-inch high-temperature voice coil
- 28 mm one-way Xmax for extreme linear excursion
- Real carbon fiber dustcap for strength, rigidity, and premium appearance
- Advanced venting throughout the motor structure for improved cooling
- Heavy-duty build engineered for long-term high-output use
Technical Specifications (T/S Parameters)
- Revc (DC Resistance): 6.050 ohm
- Resonance Frequency (Fs): 40.803 Hz
- Qms: 2.360
- Qes: 0.510
- Qts: 0.420
- Mms (Moving Mass): 331.124 g
- Cms (Compliance): 45.948 μm/N
- Rms: 0.795
- Vas: 8.600 L
- Sd: 56.305 cm²
- BL Product: 31.746 T·m
- Sensitivity (SPL): 82.5 dB
- Xmax: 28 mm (one-way, mechanical)
- Displacement: 0.09 cu ft
Engineering and Construction
- High-efficiency motor system engineered for aggressive output
- Rear gap and pole venting for improved cooling and reduced thermal compression
- Reinforced suspension designed for reliable high-excursion performance
- Precision-wound 2.75" voice coil built for thermal strength
- Premium carbon fiber dustcap improves rigidity and reduces cone flex
- Built to maximize output while maintaining long-term durability
Recommended Enclosures
Sealed Enclosure:
- 0.5 cubic foot (net)
Ported Enclosure:
- 1.0 cubic foot (net)
- Recommended Tuning: 32 Hz
This enclosure range gives the DBz-10 D4 excellent balance between low-end extension and punchy upper bass for daily listening.
Physical Dimensions
- Cutout Diameter: 9.45 in (240 mm)
- Mounting Depth: 7.36 in (187 mm)
- Outside Diameter: 10.79 in (274 mm)
- Motor Diameter: 7.48 in (190 mm)
- Net Weight: 31.7 lb (14.4 kg)
- Gross Weight: 35.3 lb (16.0 kg)
Why You Should Buy the DBz-10 D4
- Delivers true 1300W RMS performance suitable for demanding systems
- Compact footprint with impressive output capability
- Dual 4-ohm coils provide wiring flexibility across common amplifier setups
- Carbon fiber dustcap enhances both appearance and structural rigidity
- Perfect blend of affordability, durability, and daily-driving performance
Ideal Applications
- Daily-driven builds needing high output without large enclosure requirements
- Systems tuned in the 28–35 Hz range, where the DBz-10 D4 produces deep, rolling lows enhanced by real cabin gain
- Ported or sealed enclosures in sedans, SUVs, hatchbacks, and trucks
- SQL-style daily setups seeking a balance of low-end authority and punch
- Users wanting responsive, aggressive bass performance at a budget-friendly price
Specifications
- Monday: 6am - 9pm PDT
- Tuesday: 6am - 9pm PDT
- Wednesday: 6am - 9pm PDT
- Thursday: 6am - 9pm PDT
- Friday: 6am - 9pm PDT
- Saturday: 8am - 4pm PDT
- Sunday: Closed
Shipping Information
We can ship to virtually any address in the world. Note that there are restrictions on some products, and some products cannot be shipped to international destinations.
Shipping from the warehouse after you place your order is same day in most cases, but if it's the holidays or a seasonal rush, in most cases it takes 1 to 3 days. If anything comes up, we will notify you via email or call you. Packages usually arrive in 3 to 10 business days, depending on the service. If anything happens after your product is shipped, please contact the service provider (UPS or USPS first), as we can’t act on your behalf once the item is shipped.
Shipping is FREE over $100.00 in the Continental US. Hawaii, Alaska, and US territories will have shipping calculated at checkout. Orders below $100.00 have a shipping cost starting at $25.00, with the final price calculated per order depending on the item or items purchased. International shipping is calculated by Zonos, a third-party international shipping partner. If there are any issues or exclusions with your purchase, we will reach out to notify you.
When you place an order, we will estimate shipping and delivery dates based on item availability and the shipping option you select. Depending on the shipping provider, estimated shipping dates may appear on the shipping quotes page.
IMPORTANT DELIVERY NOTICE: If you feel you live in an unsafe area where a package could be stolen, please ship your order to a safer address. Once the package has been shipped and scanned as delivered, it becomes the responsibility of your home or homeowners insurance. Please be diligent to ensure safe delivery.
We are happy to offer signature-required delivery if requested. If you would like your package to require a signature, please include this request in your order notes. Please note that shipping rates for many items are weight-based. Item weights can be found on the product detail page and are rounded up to the next full pound to comply with shipping carrier policies.
Route Package Protection: We’ve partnered with Route, a package protection and tracking solution, to provide an enhanced delivery experience. Route offers low-cost shipping protection in case your package is lost, stolen, or damaged during transit.
Route also offers a mobile app that allows you to visually track all your online orders in one place—no need to search emails for tracking numbers. Dynamic maps and real-time shipping updates keep you informed throughout the delivery process. The Route app is available on both Android and Apple app stores.
If you experience an issue with your order, please file a claim directly with Route’s support team.
