OMNITRONIC LH-040 is a 1-channel stereo RIAA phono preamplifier for connecting a turntable through stereo RCA sockets. It provides stereo RCA and 6.3 mm jack line outputs for connection to stereos, active speakers, or a power amplifier. The unit includes a ground terminal to reduce hum and offers a 20–20,000 Hz frequency range, 30 dB gain, greater than 84 dB signal-to-noise ratio, and less than 0.02% THD at 1 kHz. It has a metal housing, silver finish, external power adapter, and weighs 0.46 kg.