ESX SX1000.1

The ESX SX1000.1 from the SIGNUM SX series is a compact, high-performance mono amplifier designed for demanding subwoofer applications. Despite its extremely compact dimensions, this monoblock delivers an output power of up to 1,080 watts RMS into 1 ohm, making it suitable for driving high-power subwoofer systems.

The solid enclosure consists of a precision-fit die-cast aluminum heat sink that enables effective heat dissipation. In combination with the highly efficient Class D circuitry, the SX1000.1 achieves an efficiency of up to 90%, resulting in comparatively little heat loss despite its high output power.

In addition to RCA inputs, the amplifier features high-level inputs with the ESX EPS® Error Protection System. This allows the amplifier to be easily connected to many factory-installed car radios and OEM sound systems. The automatic power-on function via the high-level signal often eliminates the need for a separate remote wire in such installations.

An adjustable low-pass filter, a subsonic filter, and a bass boost are available for optimal subwoofer tuning. The included REM-ESX2 bass level remote control also allows you to conveniently adjust the subwoofer level from the driver's seat.

Technical Specifications

• Mono Class-D Digital Amplifier

• 1-Channel / Monoblock

• 1-ohm stable

• RMS power at 14.4 V and ≤ 1% THD+N:

  • 1 x 500 watts RMS into 4 ohms

  • 1 x 800 watts RMS at 2 ohms

  • 1 x 1,080 watts RMS at 1 ohm

• Permissible speaker impedance: 1–8 ohms

• Efficiency: up to 90%

• Damping factor: > 200

• Signal-to-noise ratio: > 95 dB

• Total harmonic distortion: < 0.02%

• RCA/Low-Level Input Sensitivity: 350 mV – 6 V

• High-level input sensitivity: 3–17 V

• Adjustable subsonic filter: 10–50 Hz

• Adjustable low-pass filter (LPF): 40–150 Hz

• Bass Boost: 0–12 dB at 45 Hz

• RCA low-level inputs

• High-level inputs

• EPS® Error Protection System

• EPS® prevents error messages in compatible vehicle diagnostic systems

• Automatic power-on function via high-level input / DC Auto Turn-On

• Start/Stop-capable

• Operating voltage: 10.5–16 V

• Can operate briefly at up to 7 V for a maximum of 5 seconds

• Internal fuses: 3 x 35 A

• Included bass level remote control: REM-ESX2

• Solid Die-Cast Aluminum Heat Sink

• Compact design

• Dimensions: 140 x 44 x 225 mm
  
  

Features

• Highly Efficient Class D Technology

• Up to 1,080 watts RMS output power

• Stable operation down to 1 ohm

• High-Level Connection for OEM Radios

• EPS® Protection Circuit for Modern Vehicle Diagnostic Systems

• Automatic power-on when using the high-level input

• Adjustable Low-Pass Filter

• Adjustable Subsonic Filter

• Adjustable Bass Boost

• External bass level remote control included

• Start/Stop-compatible

• High-quality die-cast aluminum heat sink

• Very compact dimensions for flexible installation