ESX SXE150.4

The ESX SXE150.4 from the SIGNUM series is a powerful 4-channel Class A/B analog amplifier that combines high-quality sound reproduction with versatile adjustment options. With an output power of up to 4 x 150 watts RMS into 2 ohms, this power amplifier is suitable for high-performance speaker systems as well as for combinations of speakers and subwoofers.

The sophisticated Class A/B circuitry and high-quality NE5532 operational amplifiers in the input stage enable detailed music reproduction with low distortion. Solid connection terminals, aluminum end panels, and a sturdy heat sink underscore the high-quality craftsmanship.

For integration into existing vehicle systems, the SXE150.4 features high-level inputs with an automatic power-on function. The built-in Error Protection System (EPS) ensures trouble-free connection to compatible OEM factory radios. Adjustable high-pass, low-pass, and band-pass filters allow for flexible adaptation to different speaker configurations.

Technical Specifications

Amplifier Power (RMS)

• 4 x 100 watts RMS at 4 ohms

• 4 x 150 watts RMS at 2 ohms

• 2 x 300 watts RMS bridged at 4 ohms
  
  

Maximum Output Power

• 4 x 200 watts MAX at 4 ohms

• 4 x 300 watts MAX at 2 ohms
  
  

General Technical Specifications

• Amplifier Type: 4-Channel Analog Amplifier

• Amplifier Class: Class A/B

• Series: ESX SIGNUM SXE

• Speaker impedance: 2–8 ohms in stereo mode

• Frequency response: 5–40,000 Hz (-3 dB)

• Total Harmonic Distortion (THD): less than 0.5% at 1 kHz

• Signal-to-noise ratio: over 90 dB

• Input sensitivity: 0.1–7 volts

• Input impedance: 10 kOhm

• Efficiency: up to 62%
  
  

Crossover Networks and Sound Settings

• High-pass filter, channels 1/2: 10–250 Hz

• High-pass filter slope, channels 1/2: 12 dB/octave

• High-pass filter, channels 3/4: 10–250 Hz

• High-pass filter slope, channels 3/4: 12 dB/octave

• Low-pass filter, channels 3/4: 50–250 Hz

• Low-pass filter slope, channels 3/4: 12 dB/octave

• Bandpass function: via combined high-pass and low-pass filters on channels 3/4

• Bass Boost Channels 3/4: 0–12 dB

• Input selector switch: 2-channel or 4-channel operation
  
  

Connections and Features

• 4 x RCA low-level inputs

• 4 high-level inputs via the included connector

• Automatic power-on function via high-level inputs

• Error Protection System (EPS) for OEM Radios

• High-Quality NE5532 Operational Amplifiers

• MOSFET PWM Power Supply

• 3-stage protection circuit

• Heavy-duty power and speaker connections

• Aluminum heat sinks with acrylic inserts

• Aluminum End Panels

• Inlaid logo with a diamond-cut finish

• Sturdy mounting brackets on the base plate
  
  

Power Supply and Dimensions

• Operating voltage: 12 volts DC

• Permissible voltage range: 9–15 volts

• Fuse rating: 3 x 30 amps

• Width: 220 mm

• Height: 53 mm

• Length: 390 mm