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SIGNUM SX-ONE
Technical Highlights
- Enormous power, up to 600 watts RMS at 1 ohm, Class-D technology.
- Efficient mono amplifier, efficiency up to 87%, compact.
- High-level inputs with EPS®, automatic turn-on function.
- More technical details
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SIGNUM SX-ONE by ESX
The SIGNUM SX-ONE from ESX is a 1-channel amplifier specifically designed for subwoofers. With an output of up to 600 watts RMS at 1 Ohm, it offers impressive power in a compact design. Thanks to modern Class D technology, the amplifier operates efficiently and stably. Its special features include a die-cast aluminum heat sink, RCA inputs via cable connectors, and a compact bass level remote control. In addition, the SIGNUM SX-ONE is equipped with high-level inputs with an Error Protection System (EPS®) and features an automatic turn-on function as well as start/stop compatibility.
The SX-ONE is the top choice in the portfolio when it comes to driving subwoofers. The mini monoblock delivers enormous power of up to 600 watts RMS at 1 Ohm, while remaining surprisingly space-saving. State-of-the-art Class D technology ensures efficient operation, stable power, and controlled deep bass.
Features
- Efficient Class D amplifier with compact dimensions
- Die-cast aluminum heat sink with optimal cooling properties
- RCA inputs via cable connectors
- Compact bass level remote control
- High-level inputs with Error Protection System (EPS®)
- Automatic turn-on function
- Start/Stop Ready
Technical Data
- Mono Mini Class D Digital Amplifier
- 1 x 200/375/600 Watts RMS @ 4/2/1 Ω
- LPF 50 - 250 Hz
- Bass Boost 0 - 12 dB
- Dimensions 83 x 38 x 153 mm
- Efficiency up to 87%

