Introducing the colossal Tropo 18 Inch Subwoofer D4 by none other that CT Sounds. To experience real time SPL at a greatly affordable price, this subwoofer just has got it. Enormous 3" D4 voice coil in the core of this subwoofer has been a great improvement to the Tropo series subwoofers. For those with larger concerns in their car audio while looking at their expenses, Tropo 18" D4 is just an excellent option!

• POWERFUL – Packs the serious punch | RMS Power 600W | MAX POWER 1200 WATT | Handles More WATTS Than Rated | Produce High Sound Resonance | Best Car Subwoofer | Thunderous Car Audio Subwoofer | Experience Clean Sound without distortions | LOUD BASS | DUAL VOICE COILS | 4Ω (Ohm) Impedance | Handles Tremendous Power at High Volumes |You’ll be BLOWN AWAY | Spring Terminals

• HARD-HITTING BASS YOU CRAVE - Delivers serious power with CT’s DOUBLE STACKED FERRITE MAGNET - Y35 Graded, one of the kings in the magnet world | Tremendous Motor/Magnet Force | Beefy Car Subwoofer Speaker | LOOK NO FURTHER, better than more expensive subs in the market | Powerful Bass Subwoofer for Car | Classic Competition Design with NO GIMMICKS

• HIGH-QUALITY COMPONENTS – Shipping weight – 31 lbs | STURDY | Heavy-duty, Stamp Steel Basket Frame | SURROUNDED by High DURABLE RIBBED RUBBER | Beautiful Finish | Double Stitched Treated, Competition grade Paper Cone - Polypropylene and Nylon Fabric | Longer Life Span | Poly-Cotton Blend Spider | Copper Tinsel Lead | 3" Dual, High-temperature Voice Coil | Y35 Graded Double Stacked Ferrite Magnet | Utmost attention to Detail | Top Performance | High-Quality Car Subwoofer Construction | 12 Gauge Speaker connector | Cutout diameter: 419mm / 16.5", Overall diameter: 460mm / 18.1" and Mounting Depth – 198mm / 7.8"

• FABULOUS SOUND QUALITY – Produces Deep Low Notes with Pinpoint Accuracy | Smooth & Crisp Sound | MUST-HAVE Car Audio Subwoofer | Unique Sound Experience | Pure ROCKING QUALITY | Packs a Serious Punch | Advanced Air Flow Cooling Design | Better Quality Sounds | Best Bang for Your Buck

• BEAUTIFUL CRAFTSMANSHIP – The Power and The Beauty You Seek | Aesthetically Pleasing | Powerful Car Audio Subwoofer | QUALITY - RELIABILITY - PERFORMANCE – AFFORDABILITY | Car Subwoofer

Whats in the box:

• 1 x Tropo 18" D4 Car Subwoofer (Dual 4 ohm)

Features:

1. It is a dual 4Ω (ohm) resistive (voice coil) subwoofer
2. This is a 600W (RMS) car audio subwoofer with 1200W max power
3. 3" (diameter) voice coil makes this product versatile irrespective of its size, dimensions and power consumption
4. It incorporates with Y35 graded ferrite magnet! The magnet is safely kept inside a firm and strong casing & is attached to the sub basket
5. Strong and sturdy basket frame capable of handling high-powered audio-frequency production without any harm to the product!

Technical Specifications:

1. Sub power: 600W (RMS) | 1200W (MAX) 
2. Subwoofer size: 18"
3. Subwoofer type/ impedance: Dual 4 ohm
4. Voice coil (diameter): 3" (76.2mm)
5. Fo: 25.782Hz
6. QTS: 0.571
7. QES: 0.649
8. QMS: 4.15
9. VAS: 197.420 liters
10. SPL: 89.0 dB (@1w/1m)
11. Xmax: 12.5mm (One way)
12. Displacement: 0.15 ft³

Box Specifications:

1. Sealed: 5.00 ft³
2. Ported: 4.50 ~ 5.00 ft³

Mounting / Installation Parameters:

1. Cutout diameter: 419mm / 16.5"
2. Overall diameter: 460mm / 18.1"
3. Mounting depth: 198mm / 7.8"

Download Tropo Subwoofer Specification Sheet