Sundown Audio M18D2 – 18" Dual 2-Ohm Subwoofer, 2000W RMS 4000W Max
The Sundown Audio M18D2 is a competition-grade 18-inch subwoofer engineered for deep, powerful bass and long-lasting performance. Designed for high-output systems, it delivers exceptional sound quality and durability in demanding setups.
Features:
- Power Handling: High-performance subwoofer engineered to manage up to 2000 watts RMS and 4000 watts peak, delivering deep, impactful bass with authority.
- Construction: Built with a durable, etched black backplate that enhances both strength and visual appeal.
- Design Features: Equipped with a large 18-inch cone and MEGA ROLL surround to ensure wide excursion, accurate sound reproduction, and minimal distortion.
- Performance: Features an advanced motor assembly and precision-optimized voice coil for tight, responsive bass and consistent output under demanding conditions.
- Installation Options: Available in Dual 1 Ohm and Dual 2 Ohm voice coil configurations for flexible system integration.
Specifications:
| Specification | Details |
|---|---|
| Product Name | Sundown Audio M18D2 18″ Subwoofer (Dual 2 Ω) – M‑Series Mega Line |
| UPC | 810111135345 |
| Size | 18″ (457 mm) |
| Power Handling | 2000 W RMS / 4000 W Peak |
| Impedance | Dual 2 Ω (also available in Dual 1 Ω variant) |
| Sensitivity | 86.1 dB @ 1 W/1 m |
| Voice Coil Diameter | 3″ (76.2 mm), 4-layer aluminum round wire |
| Motor & Cooling | Quad-stack 200 mm magnet x 88 mm; mega roll surround; venting in pole/backplate for heat dissipation |
| Basket | Custom-tooled cast aluminum frame, mega-roll surround for high excursion |
| T/S Parameters (M18D2) | RE = 4.125 Ω, Fs = 25.75 Hz, Vas = 117.5 L, Qes = 0.74, Qms = 5.379, Qts = 0.65, Le = 3.55 mH, BL = 24 N/A, Mms = 639 g, Cms = 59.6 µM/N, Xmax = 35 mm |
| Dimensions | Mount depth: 14.05″; OD: 18.46″; Cut-out: 16.68″ |
| Recommended Enclosures | Ported: ~7 cu ft tuned to 32 Hz, port area 112 in²; sealed enclosures not recommended |
| Construction Highlights | Etched black backplate; mega-roll surround; quad magnet stack; aluminum frame; vented motor |
| Price | ~$699.99 MSRP (varies by retailer) |
| Country of Manufacture | USA |
SKU: SUN-M18D2
UPC: 810111135344
Free shipping is available within the 48 U.S. states. Orders placed before 11 PM ET are typically processed the next business day and arrive within 5–8 business days. Tracking information will be provided as soon as your order ships.
Need to make a change to your order? Contact us within 24 hours of purchase, and we'll be happy to help. Please note that orders already processed for shipment cannot be canceled.
1-Year Limited Warranty: As an authorized dealer, we provide a 1-year limited warranty covering manufacturer defects in materials and workmanship under normal use. The warranty does not cover physical damage, misuse, improper installation, or normal wear and tear.
Customer Support : 9:00 am to 5:00 pm
Email: info@eliteautogear.com
For technical support questions, contact us at cs@eliteautogear.com
Phone: (877)-215-8187
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Low End You Can Feel
Bass Built for Daily Driving and Competition
Controlled Low End
Designed for tight, repeatable bass rather than one-note boom, so basslines and kick drums stay separate.
Built to Take Power
Voice coil, spider and cone materials are matched to the rated RMS so the sub handles sustained output.
Match the Enclosure
Performance depends on the box. Sealed for accuracy, ported for output. See the specs for recommended volume and tuning.
Wire It Right
Coil configuration decides your final impedance. Match it to a load your amplifier is stable at before wiring.
