Description
The DOWN4SOUND DVX-18 D4 is engineered for listeners who demand authoritative, precise, and durable low-frequency performance. Built with a massive high-strength motor, extended mechanical throw, and a real premium carbon fiber dustcap, the DVX-18 delivers exceptional output and accuracy suitable for daily driving, demonstration builds, and high-power systems.
This model provides a true 1700W RMS power rating and a dual 4-ohm voice coil configuration for flexible amplifier matching and wiring options. Every component is designed for efficiency, cooling, and long-term reliability under significant sound pressure levels.
Key Features
- 1700W RMS power handling
- Dual 4-ohm voice coil design
- 3-inch high-temperature voice coil
- 33 mm one-way Xmax for extended linear travel
- Full carbon fiber dustcap for strength and rigidity
- Advanced venting throughout the motor structure for improved cooling
- 68-lb heavy-duty construction designed for extreme output applications
- 8.66-inch (220 mm) motor diameter
- Highly extended pole piece for increased linear throw
- Pole vent flared on both ends for superior airflow and low noise
Technical Specifications (T/S Parameters)
Laboratory-verified values for WinISD, enclosure modeling, and professional system design.
- Revc (DC Resistance): 6.050 ohm
- Resonance Frequency (Fs): 28.036 Hz
- Qms: 3.012
- Qes: 0.659
- Qts: 0.541
- Mms (Moving Mass): 492.526 g
- Cms (Compliance): 56.483 μm/N
- Rms (Mechanical Resistance): 0.803
- Vas: 119.508 L
- Sd: 113.411 cm²
- BL Product: 28.212 T·m
- Sensitivity (SPL): 87.9 dB
- Xmax: 33 mm (one-way, mechanical)
- Displacement: 0.21 cu ft
Engineering and Construction
- Extended pole piece for improved linear performance and mechanical control
- Dual-flared pole venting for low-noise airflow and efficient heat removal
- Rear gap ventilation for reduced voice coil temperatures during sustained playback
- 8.66-inch (220 mm) motor diameter for substantial magnetic strength
- Long-fiber spider system for reliable, consistent suspension behavior
- Carbon fiber dustcap for reduced moving mass and enhanced rigidity
Recommended Enclosure
Ported Enclosure:
- Volume: 7 cubic feet (net)
- Tuning Frequency: 28–32 Hz
This alignment provides deep low-frequency extension, high output, and low distortion suitable for daily music listening and large-cabin high-power builds.
Physical Dimensions
- Cutout Diameter: 17.00 in (431.8 mm)
- Mounting Depth: 11.81 in (300 mm)
- Outside Diameter: 18.49 in (469 mm)
- Motor Diameter: 8.66 in (220 mm)
- Weight: 68 lb
Why Choose the DVX-18 D4
- Extreme output capability with accurate, controlled low-frequency reproduction
- Durable construction optimized for long-term performance in demanding systems
- Flexible wiring thanks to the dual 4-ohm voice coils
- Real carbon fiber dustcap adds both structural strength and a premium appearance
- Designed for users who require deep, powerful bass without sacrificing clarity
Ideal Applications
- Large-cabin daily music systems
- High-power demo builds
- Trunk, wall, or 4th/6th-order enclosures
- SQL (Sound Quality Loud) and SPL-leaning setups
- Users seeking strong low-end response in the 25–45 Hz range
Warranty Information
Warranty Information
Your new Down4Sound product is covered by 1 limited warranty if purchased from Down4Sound or an authorized Down4Sound dealer. This warranty does not cover improper installation, accidental damage, misuse, abuse, improper wiring, operation of unit outside of listed specifications, or any product that has been modified or repaired by anyone other than Down4Sound. Your warranty covers defects in materials and/or workmanship ONLY and is not an insurance policy. The warranty only covers the original owner of the amplifier.
All warranty returns must be accompanied by the original sales invoice or receipt. You must contact us to request an RMA number prior to sending any returns via the RMA request form on our website. You are responsible for the cost of shipping your product back to us for warranty examination. If your product is covered under warranty, shipping back to you will be at no charge to you – if your product is replaced/repaired outside of warranty you must pay for return shipping and repair bill prior to the return of the product or if no defect is found you are required to pay for return shipping only.
At the sole discretion of Down4Sound your product will be either repaired or replaced when it is being covered under warranty. In the event of shipping damage due to improper packaging on products being returned to Down4Sound the customer is liable for the cost of all damages, necessary repairs, or replacement. Be sure to properly pack your return!
* Extended additional warranty purchased on amplifiers take effect from the date of purchase and must also be stated on original sales invoice or receipt.
Refund/Return Policy: https://www.down4soundshop.com/shipping-returns/
Down4Sound - Hours of Operation
Additional Information
Model: |
DVX |
Ohm: |
4 |
Subwoofer Size: |
18 |
Product Type: |
Subwoofer |
Subwoofer Type: |
DUAL VOICE COIL |