Troubleshooting & Maintenance

Lexicon

The RT-20 automatically downsamples digital audio sources with high sample rates.

1.Set the AUDIO SETUP 1 menu PCM Down Sample parameter to Off. When this parameter is set to On, the RT-20 automati- cally downsamples 96kHz PCM signals to 48kHz before passing them to the associated component.

2.If the loaded disc generates 192 or 176.4kHz signals, the RT-20 automatically downsamples these signals to 48 or 44.1kHz before passing them to the associated component. The RT-20 will not pass 192 or 176.4kHz signals, even when the PCM Down Sample parameter is set to Off.

3.If a DVD is loaded, the disc may have a copy-protection signal that prevents it from generating 96kHz signals. When a copy- protection signal is present, the RT-20 automatically downsam- ples signals to 48kHz before passing them to the associated component, even if the PCM Down Sample parameter is set to Off.

A humming sound is present in the audio.

1.If a cable TV connection is present, disconnect the cable from the wall outlet. If this eliminates the humming sound, an isola- tion device is required. Contact the cable provider for assis- tance.

2.Disconnect components one at a time to isolate the problem. Once the problem is identified, make sure the component is properly grounded and connected to the same electrical circuit as the RT-20.

Dialog sounds muffled.

1.If the RT-20 has a stereo audio output connection, set the Audio Out parameter to 2 Channel.

2.If the speaker setup does not include a center speaker, make sure a center speaker is not selected with the component that was used to configure speaker settings.

3.If the RT-20 was used to configure speaker settings, make sure the Speaker Size screen C parameter is set to Off.

4.If a MC-12 or MC-8 Digital Controller was used to configure speaker settings, make sure the CUSTOM SETUP menu CENTER parameter is set to NONE.

RF interference is present in the audio output.

Make sure the RT-20 is not positioned near unshielded TV or FM antennas, cable TV decoders, and other RF emitting devices that might cause interference. Replace unshielded cables with shielded cables whenever possible.

Volume level seems to differ between DVDs and CDs.

DVDs and CDs are recorded with different processes, which might cause them to output audio at different volume levels.

The RT-20 will not pass Dolby Digital, DTS, or MPEG signals to the associated component.

1.Make sure the AUDIO SETUP 1 menu Dolby Digital, DTS, and MPEG parameter settings are compatible with the associated component. For instance, the Dolby Digital Out parameter should be set to Bitstream if the associated component is com-

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Lexicon RT-20 Humming sound is present in the audio, Dialog sounds muffled, RF interference is present in the audio output
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RT-20 specifications

The Lexicon RT-20 is a high-performance audio player and streaming device that has garnered attention for its impressive sound quality and advanced features. Designed for audiophiles and music enthusiasts, the RT-20 embodies the fusion of premium audio technology and modern design aesthetics.

One of the standout features of the RT-20 is its ability to support a wide range of audio formats. This device is compatible with various high-resolution audio files, including FLAC, WAV, and DSD formats, ensuring that users can enjoy their favorite music in the highest possible quality. The RT-20's built-in DAC (Digital-to-Analog Converter) enhances the listening experience by offering pristine sound reproduction that captures the nuances of the original recordings.

The RT-20 also supports streaming from popular services, allowing users to access vast libraries of music without the need for physical media. With Wi-Fi connectivity and Bluetooth capabilities, the RT-20 can seamlessly connect to smartphones, tablets, and other devices. This versatility makes it easy to stream music from services like TIDAL, Qobuz, and Spotify, making it a central hub for digital audio enjoyment.

Another remarkable characteristic of the RT-20 is its intuitive user interface. The device features a large, high-resolution touchscreen display that provides easy navigation through playlists, settings, and streaming options. This user-friendly design ensures that even those who may not be tech-savvy can operate the device with ease.

Moreover, the RT-20 includes high-quality analog and digital outputs, allowing users to connect it to various audio systems, whether for casual listening or for an immersive home theater experience. The unit’s robust build and isolated circuitry are designed to minimize interference, ensuring that sound quality remains uncompromised.

One of the critical technologies that set the RT-20 apart is its advanced signal processing capabilities, which enhance audio performance by optimizing sound based on the environment and listening preferences. This intelligent approach to audio customization allows users to tailor their experience to suit their specific tastes.

In summary, the Lexicon RT-20 is a versatile and sophisticated audio player that combines high-resolution playback, seamless streaming capabilities, and an intuitive user interface. With its advanced technologies and focus on sound quality, it stands out as an excellent choice for anyone looking to elevate their audio experience.
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