Sundown Audio M18D2 – 18" Dual 2-Ohm Subwoofer, 2000W RMS 4000W Max
Massive Power & Clarity
Superior Performance
Advanced Technology
Premium Quality
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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 |
Free shipping in the 48 U.S. states. Orders placed before 11 PM ET process next business day; shipping takes 5–8 days. Tracking info is emailed once shipped. To cancel, contact info@eliteautogear.com within 24 hours. Processed orders can’t be canceled. Thank you for choosing Elite Auto Gear!
Customer Support : 9:00 am to 5:00 pm
Address: 13446 Alondra Boulevard, Cerritos ,California 90703, United States
Email: info@eliteautogear.com
Phone: (877)-215-8187
From Boats to Jeeps to UTVs
Built to Be Heard Everywhere You Ride
Power That Dominates
Pushes up to 900W peak / 300W RMS for crystal-clear highs and bass that cuts through wind, waves, or trails.
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Engineered to withstand extreme conditions with rugged construction and weatherproof design.
Built for Power & Durability
Premium materials and advanced engineering ensure long-lasting performance in any environment.
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What Our Customers Are Saying
⭐ 4.9 stars reviews, Loved by Thousands
"Great packaging and super loud speakers would recommend buying and got delivered fast"
M**I
Verified Customer
"Installed Apocalypse 6.5 mids, DS18 tweeters, and Orion 6x9s in my 2014 Dodge Challenger RT — amazing sound! Quality and materials are top-notch. Definitely buying from them again."
B.
Verified Customer
"10 de 10 con el envío super rápido espero que si tengan buen sonido estan muy bonitas"
werita&chukito3
Verified Customer
"Definitely a must can't wait to install all my speakers I would buy from them again I got the apocalypse 6.5 mid range ds18 tweeters 3.5 full range and Orion 6x9 mid range"
Verified Customer
"Me gustó mucho buena calidad Y suena recio como yo pensaba si se las recomiendo buen sonido"
Verified Customer
"The speakers were loud and good"
B.
Verified Customer
"Great product but it only comes with one tweeter so make sure you buy 2"
obs_brycen
Verified Customer
"Súper buena calidad, buen sonido de voz, y llega en buenas condiciones"
s**a
Verified Customer
"Received them and they work as i expected"
bmtmanuel
Verified Customer
"They got here before estimated arrival and are in amazing condition"
**l
Verified Customer
"Muy buen producto de escucha muy bien"
M**S
Verified Customer