SoundQubed HDX4.2-18D2 18 Inch Car Subwoofer – 4000W/8000W RMS Dual 2 Ohm 🔊
🔥 Powerful Performance. Experience powerful low-frequency performance with the SoundQubed HDX4.2-18D2 18 Inch Car Subwoofer competition-grade subwoofer.
This 18 Inch Car Subwoofer handles 4,000 watts RMS and 8,000 watts maximum power.
Designed for demanding SPL applications, this driver supports serious high-output car audio installations.
Its dual 2-ohm voice coils provide versatile wiring options for compatible high-power amplifiers.
🎵 Sound Quality and Performance
The HDX4.2-18D2 features a 31.7Hz resonant frequency and 90.4dB sensitivity.
Its 23mm one-way Xmax supports substantial cone movement during demanding bass reproduction.
The oversized 4-inch voice coil supports high-power operation in properly configured systems.
Its large cone surface helps move significant air for powerful deep bass.
🛠️ Construction and Design
A massive 402-ounce magnet assembly supports this competition-grade driver's motor system.
The 4-inch voice coil features a 70mm winding length.
Its high-excursion design supports demanding applications requiring substantial cone displacement.
The 11.34-inch mounting depth requires adequate clearance inside a reinforced enclosure.
🔌 Installation and Compatibility
Dual 2-ohm voice coils allow 1-ohm parallel wiring or 4-ohm series wiring.
Choose an amplifier rated for the selected impedance and appropriate continuous power output.
High-power installations require careful electrical system planning.
Verify enclosure volume, mounting clearance, amplifier stability, and electrical capacity before installation.
⚡ Key Features and Specifications
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🔊 Brand: SoundQubed
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📦 Model: HDX4.2-18D2
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📏 Speaker Size: 18 inches
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⚡ RMS Power: 4,000 watts
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🔥 Maximum Power: 8,000 watts
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🔌 Impedance: Dual 2 Ohm
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🎵 Voice Coil Diameter: 4 inches
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🧲 Magnet Weight: 402 ounces
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📐 Mounting Depth: 11.34 inches
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🎶 Resonant Frequency: 31.7Hz
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📈 Sensitivity: 90.4dB
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🔧 Xmax: 23mm one-way
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📦 Sold Individually
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❓ Frequently Asked Questions
1. What amplifier works with the HDX4.2-18D2?
Choose an amplifier supporting 1-ohm or 4-ohm operation, depending on your wiring configuration.
Match continuous amplifier output to the subwoofer's RMS rating.
2. What enclosure size does this subwoofer require?
Suggested sealed enclosures range from 3 to 5.75 cubic feet.
Suggested ported enclosures range from 5 to 7 cubic feet.
3. Does this subwoofer include an amplifier or enclosure?
No amplifier or enclosure is included with this standalone driver.
Additional installation components must be purchased separately.
