ESX SX-ONE

With the SIGNUM SX Mini Series, ESX is expanding its car audio portfolio to include exceptionally compact Class-D amplifiers that deliver high output power despite their minimal dimensions. Modern Class-D technology enables high efficiency with low heat generation, thereby laying the foundation for an extremely space-saving design.

The ESX SX-ONE is the mono amplifier in the series and was developed specifically for driving subwoofers. With an output power of up to 600 watts RMS into 1 ohm, this compact amplifier offers ample power reserves for high-performance subwoofer systems. Thanks to a width of just 83 mm and a height of only 38 mm, the amplifier can be discreetly installed even in tight spaces—for example, under a seat, behind a side panel, or in the trunk.

Features include an adjustable low-pass filter and a bass boost at 45 Hz. In addition to the low-level input, a high-level input with EPS® (Error Protection System) is available, making the SX-ONE ideal for integration into modern OEM sound systems and factory radios. The automatic power-on function allows the power amplifier to be activated via the high-level input without the need for a separate remote wire.

A compact bass-level remote control is also included, allowing you to conveniently adjust the subwoofer level from the driver's seat.

Features

• 1-Channel Mono Digital Amplifier

• Modern and efficient Class D amplifier technology

• 1-ohm stable

• Designed for use with subwoofers

• Very compact design

• Die-Cast Aluminum Heat Sink

• Low-level/RCA input via the included cable harness

• High-level input via the included wiring harness

• EPS® Error Protection System for Modern OEM Radios

• Automatic power-on function via high-level input

• Automatic Power-On via DC/VOX

• Adjustable Low-Pass Filter

• Adjustable Bass Boost

• REM-ESX1 Bass Level Remote Control (Included)

• Start-stop compatible
  
  

Technical Specifications

• Amplifier Type: Mono Amplifier

• Number of channels: 1

• Amplifier Technology: Digital Class D

• RMS power at 14.4 V and ≤ 1% THD+N:

• 1 x 200 watts RMS at 4 Ω

• 1 x 375 watts RMS at 2 Ω

• 1 x 600 watts RMS at 1 Ω

• Permissible speaker impedance: 1–8 Ω

• Signal-to-noise ratio: > 90 dB

• Total Harmonic Distortion (THD): < 0.02%

• Input sensitivity: 200 mV – 9 V

• Low-pass filter (LPF): 50–250 Hz

• Bass Boost: 0–12 dB at 45 Hz

• Low-level input: RCA via cable harness

• High-level input: Yes, via wiring harness

• High-level input with EPS®: Yes

• Automatic Power-On: Yes, DC/VOX

• Start-Stop Function: Yes

• Operating voltage: 10.5 – 16.5 V

• Short-term operation during a voltage drop: up to 7 V for a maximum of 5 seconds

• External fuse: 1 x 50 A

• Bass Level Remote Control: REM-ESX1 (Included)

• Dimensions: 83 x 38 x 153 mm