Product Description
DS18 X 4-Channel Ultra Compact Class D Amplifier 4 x 70 Watts Rms @ 4-ohm
Key Features
- 4-Channel Full Range Amplifier
- Class D Digital Design
- 2–4 Ohm Stable Operation
- 4 x 70W RMS @ 4 Ohm
- 4 x 140W RMS @ 2 Ohm
- 2 x 220W RMS Bridged @ 4 Ohm
- Ultra Compact Design for Easy Installation
- Power / Protection Indicator
- LPF / FLAT / HPF Selectable Crossover
- Built-in Protection Circuitry (Thermal, Overload, Short Circuit, DC, Voltage)
- Surface Mount Technology (SMT) Design
- Stable Four-Layer PCB Construction
Technical Data
- Model: X4
- Amplifier Class: Class D / Digital
- Channels: 4
- Peak Power: 1320W
- RMS Power @ 4 Ohm: 70W x 4
- RMS Power @ 2 Ohm: 140W x 4
- RMS Bridged @ 4 Ohm: 220W x 2
- Frequency Response: 20Hz – 20kHz
- Signal to Noise Ratio: >90dB
- THD: 0.20%
- Input Sensitivity: 0.2 – 5V
- Input Configuration: 2CH / 4CH
- Minimum Impedance: 2 Ohm Stereo / 4 Ohm Bridged
- Fuse Rating: 25A
- Power Input: 8 Gauge
- Dimensions: 5.54” x 3.24” x 1.37”
- Heatsink Length: 4.75”
- Protection: Thermal / Overload / Short Circuit / DC / Voltage
Product Overview
The DS18 X4 is an ultra-compact, high-efficiency 4-channel Class D amplifier designed for installations where space is limited but performance is still a priority. Despite its small footprint, it delivers strong full-range output suitable for mids, highs, and bridged applications.
Built with a compact chassis and advanced internal protection circuitry, the X4 is engineered for reliable daily use while maintaining clean audio output across all channels. Its selectable crossover modes (LPF, FLAT, HPF) allow for flexible tuning depending on system configuration, making it a versatile option for a wide range of audio builds.
