User manual ROTEL RT-830L

[. . . ] If the unit is exposed to moisture, or a foreign object gets into the enclosure, immediately disconnect the power cord from the wall. Take the unit to a qualified service person for inspection and necessary repairs. Read all the instructions before connecting or operating the component. Keep this manual so you can refer to these safety instructions. [. . . ] MP3: The RT-830L also features a decoder for the digital MP3 (MPEG1- Audio Layer 3) compression format. MP3 format recordings are available on the Internet and can be played on portable MP3 players or some disc players that can read CD-ROM discs connected to the RT-830L's digital inputs. MPEG Multichannel: The RT-830L can decode MPEG Multichannel digital recordings. Widely used in Europe, this format uses MPEG data compression to record up to 5. 1 channels of discrete digital audio, similar in function to the Dolby Digital and DTS formats. 2Ch/5Ch/7Ch Stereo Formats The RT-830L also provides four modes that disable all surround processing and deliver stereo signals to amplifiers and speakers. There are three options: 2CH Stereo: Turns off the center channel and all surround channels in the system and delivers a conventional 2-channel signal to the front speakers. If the system is configured to route bass signals from the front speakers to the subwoofer, this capability remains in effect. Analog Bypass: For 2-channel analog inputs, there is a special stereo mode that bypasses ALL of the RT-830L's digital processing. The two front speakers receive pure analog stereo full-range signals with no subwoofer crossover, no delay, no level adjustments, and no contour adjustment. 5CH Stereo: Distributes a stereo signal to 5. 1 channel systems. The left channel signal is sent, unchanged, to the front left and surround left speakers. The right channel is sent to the front right and surround right speakers. · 5-channel or 7-channel stereo from 2-channel recordings. · One of four MUSIC modes for DSP concert hall simulation from 2-channel recordings. · Dolby Pro Logic II cinema or music mode matrix decoding of 2-channel recordings. · DTS Neo:6 cinema or music mode matrix decoding of 2-channel recordings. · Dolby Digital Surround EX decoding of Dolby Digital 5. 1 channel recordings or Dolby Digital Surround EX discs that do not trigger automatic decoding. · HDCD (non 96kHz) and PCM 2-channel (non 96kHz) digital signals can be overridden to Dolby Pro Logic II, Dolby 3-Stereo, DTS Neo:6, Music 1 ­ 4, 5CH Stereo, 7CH Stereo, and Stereo. · Dolby Digital 2-channel Stereo can be overridden to Dolby Pro Logic II, Dolby 3-Stereo, and Stereo. The following topics describe in detail the manual surround mode options available for each type of recording: Dolby Digital 5. 1 discs Dolby Digital Surround EX discs Dolby Digital decoding is auto-detected and cannot be overridden. You may, however, select a 2 channel downmix of 5. 1 channel recordings. In a 6. 1ch or 7. 1 ch system, you can also choose Dolby Surround EX, Dolby Pro Logic IIx Music, Dolby Pro Logic IIx Cinema (7. 1ch only), or Rotel XS processing for center back channels. NOTE: In addition to the options that follow, you can press the 2CH button on the front panel or the remote to toggle between 2-channel downmix and multichannel playback. A digital signal coming into the RT-830L will be recognized and properly decoded. However, on a DVD with multiple soundtracks, you must tell the DVD player which one to send to the RT-830L. For example, you may need to use the DVD's menu system to select the Dolby Digital 5. 1 or DTS 5. 1 soundtrack rather than the default Dolby Digital 2. 0 Dolby Surround soundtrack. NOTE: · On a 5. 1 system. [. . . ] · Check that the group delay (lip-synch) setting is not misadjusted. Clicking or popping sounds when switching inputs. · The unit uses relay switching to preserve maximum sound quality. The mechanical clicking of the relays is normal. [. . . ]