Description

DS18 VX4HL
The DS18 VX4HL is a 4-inch high-frequency compression driver designed to deliver powerful, clear, and precise treble for car audio and professional sound systems. Equipped with a 4-inch voice coil and precision-engineered diaphragm, it efficiently handles up to 500 W RMS and 1000 W peak power, producing sharp highs and enhanced vocal clarity even in high-SPL setups. Its frequency response typically spans from approximately 500 Hz to 20 kHz, ensuring detailed and dynamic high-frequency output. Built with a robust motor structure and durable materials, the VX4HL is designed to withstand intense sound pressure and long-term use. Ideal for pairing with compatible horns, this driver provides precise, high-output treble performance for both competitive and high-fidelity audio applications.
Specifications
| Feature | Specification |
|---|---|
| SKU | VX4HL |
| Speaker Level Input Channels | 4 Channels (FL/FR/RL/RR) |
| Auto Turn-On | Yes, DC (3 V) |
| Remote Output | Yes, 12 V DC, 100 mA max |
| Remote Output Short Circuit Protection | Yes, <10 seconds |
| Amplifier Outputs | 4 Channels RCA (FL/FR/RL/RR) |
| Level Matching Controls | Yes (FL/FR/RL/RR) |
| LED Indicators | No |
| Housing Material / Color | ABS / Black |
| Wiring Connector | Dual Molex (12/8 pins) |
| Step-Down Method | Electronic / SMC |
Electrical Specifications
| Specification | Value |
|---|---|
| Maximum Speaker Level Input | 50 W RMS |
| Maximum Preamp Output | 3.2 V |
| Nominal Conversion Ratio | 4:1 |
| Frequency Response | 10 Hz – 30 kHz |
| Total Harmonic Distortion (THD) | 0.02% (at 1 kHz) |
| Input Impedance | 45 Ω (Speaker Emulator) |
| Output Impedance | 2 kΩ |
| Signal-to-Noise Ratio | >100 dB |
| Channel Separation | >60 dB |
| Noise Rejection | >60 dB |
Product Overview
4-Channel Line Output Converter with Auto Turn-On & Speaker Emulator
Upgrading your factory system doesn’t have to be a headache. DS18’s VX4HL bridges the gap between OEM and aftermarket—giving you four channels of Line output conversion without signal loss or interference.
Built-in Speaker Emulator
No more warning lights or system errors. The VX4HL includes DS18’s built-in speaker load emulation, ensuring compatibility with modern vehicle systems that rely on speaker detection. Your system stays happy and your signal stays solid.
Noise-Free Performance
Engineered with advanced noise rejection circuitry, the VX4HL blocks unwanted interference and distortion. It handles frequency from 10Hz to 30kHz with a THD of just 0.02% at 1kHz, preserving the clarity of your signal from start to finish.
Smart Auto Turn-On
Featuring a 3V DC trigger, this converter automatically powers your amp setup when your factory head unit turns on. No relay. No delay. Just easy automation for your system.
Durable + Compact
Built into a tough ABS housing, the VX4HL is compact enough to fit just about anywhere and rugged enough to last. Short circuit protection and level matching controls keep your gear safe and optimized at all times.


















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