STEG K2.04

The STEG K2.04 from the legendary K-Competition series is a powerful, high-end 2-channel amplifier that combines audiophile sound quality with enormous power reserves. Thanks to high-quality components, sophisticated Class A/B technology, and microprocessor-controlled monitoring, this power amplifier delivers exceptional sound precision, high dynamics, and reliable performance—even in demanding car audio installations.

With up to 2 × 1,400 watts RMS at 1 ohm, the STEG K2.04 is suitable for both high-power speaker systems and demanding subwoofer applications. In bridge mode, up to 2,800 watts RMS at 2 ohms is available. Using SerialPower technology, two compatible power amplifiers can be combined for even higher output power.

The comprehensive multimode crossover enables high-pass, low-pass, and band-pass configurations. The dual-filter technology with selectable slope characteristics, along with interchangeable AQXM2 frequency modules, offers versatile options for custom sound tuning. The stabilized power supply, intelligent INTELLISPEED fan cooling, and microprocessor-controlled system management ensure reliable operation.

Technical Specifications

General Characteristics

• Amplifier Type: 2-Channel Stereo Amplifier

• Amplifier Class: Class A/B

• Series: STEG K-Competition

• Number of channels: 2

• Operating Mode: Stereo / Mono (bridged)

• Impedance stability: 1 ohm (stereo) / 2 ohms (bridged)

• Input sensitivity: 0.2–5 V

• Input impedance: 48 kΩ

• Operating voltage: 9–15 V DC

• Quiescent current: less than 1.4 A

• Weight: 8.26 kg

• Dimensions: 640 × 56 × 232 mm
  
  

RMS Power (Stereo)

• 2 × 400 watts RMS at 4 ohms

• 2 × 760 watts RMS at 2 ohms

• 2 × 1,400 watts RMS at 1 ohm
  
  

RMS Power (Mono, Bridged)

• 1 × 1,600 watts RMS at 4 ohms

• 1 × 2,800 watts RMS at 2 ohms
  
  

SerialPower Operation

• Up to 4,800 watts RMS at 4 ohms

• Requires a combination of two compatible power amplifiers with the appropriate accessories
  
  

Crossover Networks and Signal Processing

• Crossover modes: High-pass (HP), low-pass (LP), band-pass (BP), full-range (FLAT)

• Dual-Filter Technology

• Filter slope: 12 / 24 dB per octave

• Filter grade: Q 0.7 / 1

• Interchangeable AQXM2 Frequency Modules

• 56 different frequency modules are available

• Frequency modules in the range of 22–8,500 Hz

• Frequency response: 7 Hz – 70 kHz
  
  

Features and Safety Functions

• Microprocessor-Controlled System Management

• Regulated power supply for constant power output up to 11 V supply voltage

• INTELLISPEED fan cooling with temperature-dependent control

• G.R.I.P.S. Noise-Killer Circuit for Suppressing Interference Noise

• STEGLink interface for communicating with a PC

• Compatible with the Windows software MySTEGmanager

• Storage of User and Installation Data

• Password Protection for Saved Settings

• Electronic Protection and Monitoring Functions
  
  

What's Included

• 1 × STEG K2.04 2-Channel Amplifier