ClassLH™ is a linear-hybrid Class H amplifier, combining a switching tracking power supply with a linear amplifier. The power supply produces enough voltage to follow the envelope of the audio signal so the linear amplifier stage can perform efficient final amplification.

ClassLH™ enables high–power, low-cost amplifier design with:
  • Considerably less heat dissipation and smaller heat sinks than Class AB
  • High overall system efficiency approaching Class D
  • Low system cost compared to Class AB or Class D
  • Low distortion and zero EMI from the amplifier stage
  • Low idle power consumption
  • Wide dynamic range
  • Simple, versatile and compact size
  • Impedance headroom
  • 0.5 Watt standby requirement

Audera’s ClassLH™ amplifier − a hybrid-linear push-pull drive amplifier, powered by highly efficient tracking power supply rails − is a perfect fit for applications where cost is a consideration, but system performance must not be compromised.

Available ASIMs:
    The LHX100 0.1 amplifier system consists of 100W Audera ClassLH™ subwoofer amplifier channels powered by high efficient tracking power supply. It can be used in mid-power subwoofer systems. The LHX100 0.1 has excellent musical efficiency, low distortion and EMI; considerably less heat dissipation than conventional class AB resulting in small heat sinks. With standby power of less than 0.5W it meets Energy Star and EU requirements. Has onboard auxiliary power supply for powering DSP, op-amps, etc. of the external feature board.


    The LHX150 2.2.1 amplifier system consists of four 25W satellite and a 50W subwoofer Audera ClassLH™ amplifier channels powered by high efficient tracking power supply. It can be used in mid–power computer multimedia systems, stereo receivers, combined hi-fi systems, music centers, soundbars. The LHX150 2.2.1 has excellent musical efficiency, low distortion and EMI; considerably less heat dissipation than conventional class AB resulting in small heat sinks. The LHX150 2.2.1 has onboard DSP for implementing necessary audio processing. The ADI ADAU1701 DSP chip supports great variety of audio algorithms. The parameters of the DSP audio processor can be easily changes and tuned in the software domain without any hardware changes. With standby power of less than 0.5W it meets Energy Star and EU requirements. Has onboard auxiliary power supply for powering DSP, op-amps, etc. of the external feature board.

    The LHX20 2.0 amplifier system consists of two 10W full range Audera ClassLH™ amplifier channels powered by high efficient tracking power supply. It can be used in 2.0 computer multimedia systems, stereo receivers, combined hi-fi systems and small music centers. The LHX20 2.0 has excellent musical efficiency, low distortion and EMI; considerably less heat dissipation than conventional class AB resulting in small heat sinks. With standby power of less than 0.5W it meets Energy Star and EU requirements. Has onboard auxiliary power supply for powering DSP, op-amps, etc. of the external feature board.