DC Audio Level 4 18" Subwoofer
Key features
- Subwoofer size: 18.0 inches
- RMS power per subwoofer: 1500 W
- Voice-coil options: D1, D2, D4
- Mounting depth: 9.5 inches
- Mounting cutout diameter: 16.75 inches
- Voice-coil diameter: 3 inches
DC Audio Level 4 18" Subwoofer - Dual 1 Ohm is backordered and will ship as soon as it is back in stock.
Description
Description
Product Overview
The DC Audio Level 4 18" subwoofer brings 1500W RMS power handling and 23.5mm X-Max to a car audio system built for deep, controlled bass. Its triple-stacked motor, aluminum shorting ring, and high-temperature voice coil are designed for demanding output in a suitable enclosure.
Key Features & Benefits
- 1500W RMS / 3000W peak: Plan your system around the subwoofer’s stated power handling.
- 23.5mm X-Max: Substantial cone travel supports deep bass in an appropriately designed enclosure.
- 2.5 mm aluminum shorting ring: Reduces motor inductance and helps manage heat during heavy use.
- Triple-stacked motor: The large motor assembly is designed for stiffness and consistent control.
- 3" high-temperature voice coil: The aluminum coil is wound on a black anodized former for demanding operation.
- Durable construction: A rigid non-pressed paper cone, stitched multilayer polymer foam surround, and upgraded spider-sewn lead wire support sustained movement.
Technical Specifications
The 18" model has a cast aluminum black frame, a polypropylene dust cover with DC logo, chrome spring-loaded push terminals, and a rubber mounting gasket. It is not designed for inverted mounting. Dual 1-, dual 2-, and dual 4-ohm configurations are listed.
Suggested enclosure volumes for the 18" model are 3.5 ft sealed and 5.5 ft ported. Physical dimensions are 9.5" mounting depth, 16.75" mounting hole diameter, 18.5" outside driver diameter, and 3.0" voice coil diameter.
| Specification | 10" | 12" | 15" | 18" |
|---|---|---|---|---|
| Mounting Depth | 6.25" | 6.75" | 8" | 9.5" |
| Mounting Hole Diameter | 9.35" | 11" | 14" | 16.75" |
| Outside Driver Diameter | 11" | 12.5" | 15.7" | 18.5" |
| VC Diameter | 3.0" | 3.0" | 3.0" | 3.0" |
| Displacement | .16 ft | .18 ft | .21 ft | .26ft |
| Power Handling rms/peak | 1500/3000 | 1500/3000 | 1500/3000 | 1500/3000 |
| Ohm Options | d1/d2/d4 | d1/d2/d4 | d1/d2/d4 | d1/d2/d4 |
| Sd | 324 cm | 481 cm | 823 cm | 1217 cm |
| Vas | 00.00 L | 17.42 L | 00.00 L | 000.00 L |
| Cms | 0.000 Mm/n | 0.058 Mm/n | 0.000 Mm/n | 0.000 Mm/n |
| Mms | 000.0 g | 232.74 g | 000.0 g | 000.0 g |
| Fs | 00.0Hz | 43 Hz | 00.0Hz | 00.0 Hz |
| Bl | 28.49 N/A | 28.49 N/A | 28.49 N/A | 28.49 N/A |
| Re | 8.6 Ohm | 8.6 Ohm | 8.6 Ohm | 8.6 Ohm |
| Le | 0.00 mH | 5.62 mH | 0.00 mH | 0.00 mH |
| Qms | 0.00 | 7.92 | 00.0 | 00.00 |
| Qes | 0.00 | 0.66 | 0.00 | 0.00 |
| Qts | 0.000 | 0.615 | 0.00 | 0.000 |
| Xmax | 23.5mm | 23.5mm | 23.5mm | 23.5mm |
| Ref SPL @1 watt | 00 db | 84.94 db | 00.0 db | 00.0 db |
| Suggest Sealed Box | .75 ft | 1.0 ft | 2.0 ft | 3.5 ft |
| Suggested Ported Box | 1.0 ft | 1.5 ft | 3.0 ft | 5.5 ft |
Why Choose This Product?
This 18" woofer combines high power handling with excursion-focused design details for a system intended to deliver strong low-frequency impact while maintaining control. The shorting ring also acts as an internal heatsink, helping move heat from the windings toward the coil venting.
A rigid cone, multilayer stitched surround, and upgraded lead wire sewn to the spider address the demands of continuous cone movement. The chrome top plate and T yoke complete the triple-stacked motor assembly.
Installation & Compatibility Notes
Allow for the 9.5" mounting depth and 16.75" mounting hole diameter, along with the 18.5" outside driver diameter. Check available space and the intended mounting orientation before building around this subwoofer.
Match the selected dual-voice-coil impedance option to the amplifier and planned wiring. The suggested 18" enclosure volumes are 3.5 ft sealed or 5.5 ft ported; pair the woofer with an ample amplifier and a suitable enclosure.
Frequently Asked Questions
What do the power ratings mean?
The subwoofer is rated for 1500W RMS and 3000W peak. Use the RMS rating when planning sustained system power, and consider the peak rating separately.
Which impedance options are available?
The listed options are d1, d2, and d4, meaning dual 1-, dual 2-, and dual 4-ohm configurations. Match the chosen configuration to your amplifier and wiring plan.
What enclosure volume is suggested for the 18" model?
The suggested volume is 3.5 ft for a sealed box or 5.5 ft for a ported box.
What mounting space does it require?
Plan for 9.5" mounting depth, a 16.75" mounting hole, and an 18.5" outside driver diameter.
Can it be mounted inverted?
The listed frame and mounting information specifies no invert mount.
Explore More
Shop the DC Audio Level 4 18" subwoofer at 12 Volt Outlet, and explore the brands we sell.
| 10" | 12" | 15" | 18" | |
|---|---|---|---|---|
| Mounting Depth | 6.25" | 6.75" | 8" | 9.5" |
| Mounting Hole Diameter | 9.35" | 11" | 14" | 16.75" |
| Outside Driver Diameter | 11" | 12.5" | 15.7" | 18.5" |
| VC Diameter | 3.0" | 3.0" | 3.0" | 3.0" |
| Displacement | .16 ft | .18 ft | .21 ft | .26ft |
| Power Handling rms/peak | 1500/3000 | 1500/3000 | 1500/3000 | 1500/3000 |
| Ohm Options | d1/d2/d4 | d1/d2/d4 | d1/d2/d4 | d1/d2/d4 |
| Sd | 324 cm | 481 cm | 823 cm | 1217 cm |
| Vas | 00.00 L | 17.42 L | 00.00 L | 000.00 L |
| Cms | 0.000 Mm/n | 0.058 Mm/n | 0.000 Mm/n | 0.000 Mm/n |
| Mms | 000.0 g | 232.74 g | 000.0 g | 000.0 g |
| Fs | 00.0Hz | 43 Hz | 00.0Hz | 00.0 Hz |
| Bl | 28.49 N/A | 28.49 N/A | 28.49 N/A | 28.49 N/A |
| Re | 8.6 Ohm | 8.6 Ohm | 8.6 Ohm | 8.6 Ohm |
| Le | 0.00 mH | 5.62 mH | 0.00 mH | 0.00 mH |
| Qms | 0.00 | 7.92 | 00.0 |
00.00 |
| Qes | 0.00 | 0.66 | 0.00 | 0.00 |
| Qts | 0.000 | 0.615 | 0.00 | 0.000 |
| Xmax | 23.5mm | 23.5mm | 23.5mm | 23.5mm |
| Ref SPL @1 watt | 00 db | 84.94 db | 00.0 db | 00.0 db |
| Suggest Sealed Box | .75 ft | 1.0 ft | 2.0 ft | 3.5 ft |
| Suggested Ported Box | 1.0 ft | 1.5 ft | 3.0 ft | 5.5 ft |
Recommended Monoblock Amplifiers
Power-matched options for one subwoofer or one complete loaded enclosure. We aim to include same-brand choices when their ratings qualify.
Loading amplifier suggestions…
Suggestions use 75–125% of the subwoofer’s RMS rating at the wiring load shown. Check wiring, enclosure needs, electrical capacity and installation space. Set gain and filters correctly to avoid overpowering the subwoofer. Buying more than one subwoofer changes the match.
