User manual CLASSE AUDIO SSP-75

[. . . ] OWNER'S MANUAL SSP-75 Preamplifier/Surround Sound Processor V1. 0 SAFETY INFORMATION 1. To prevent fire or shock hazard, do not expose the SSP-75 to water or moisture. Do not place the SSP-75 close to any heatproducing device such as a radiator, stove, etc. . The shipping container and the rear panel serial number tag will stipulate the proper voltage. [. . . ] Although composite is by far the most popular, S-Video offers performance advantages provided that all of your video components, including your monitor, offer S-Video connectors and will be placed reasonably close together. After you've begun to answer these questions, the following information will help you pinpoint specific issues. 5. 3. 1 AUDIO CONSIDERATIONS 5. 3. 1. 1 TYPES OF AUDIO INPUTS As you noticed while reviewing the rear panel diagram and associated notes in Section 1, the SSP-75 has twelve analog audio inputs, six for audio-only components and six for audio/video components. There are also seven digital inputs, of which four are Co-axial, two are Toslink and one is AES/EBU. There is also a special input for the optional external RF demodulator for use with Laser Disc Players (necessary if you will be playing AC3 encoded Laser Discs). 5. 3. 1. 2 PROGRAMMABLE CHARACTERISTICS All analog inputs include sensitivity adjustments to avoid overloading and to equalize overall sound levels as you switch from input to input. All digital inputs include sensitivity adjustments which make it possible to set output levels from each SOURCE to the same relative Sound Pressure Level (SPL). Each SOURCE may be programmed for a particular playback mode (Cinema, Stereo, Party, etc. ). 5. 3. 1. 3 INPUT ALLOCATION For example, you would use AUDIO 6 to connect an FM Tuner with balanced (XLR) analog outputs because AUDIO 6 has XLR analog inputs only. Remember that the Digital inputs may be your primary choice, as then you can use the High End internal DACs of the SSP-75. You might be required to use a TOSlink input for connecting the digital audio output of your satellite receiver, and you might use the AES/EBU input to connect a Classé CD transport. 14 5. 3. 1. 4 CHANNEL CONTINUITY As you connect your components, make sure that a source's left channel audio output goes to the corresponding left channel audio input on the SSP-75 ­ and that the right channel output goes to the right channel input, etc. If you are using the 5. 1 analog inputs (for some reason) be certain you are using the correct inputs. (This is important for analog signal connections only as all digital audio signals, whether stereo or multi-channel, carry `flags' that automatically allocate channel information precisely. ) 5. 3. 1. 5 CABLE CHOICES Cables are an endless topic of debate among audiophiles and videophiles. However, we do point out that different connections require different types of cable. For example, normal analog audio interconnects are not ideal for either digital audio or video, but will generally work in a pinch. Toslink requires an optical cable with special connectors on each end. S-Video cables also have no substitute, and great care must be taken when plugging them in. Coaxial digital audio cables, those with RCA connectors at each end, should have an impedance of 75 ohms. Similarly, video cables, both composite and S-Video, should have a characteristic impedance of 75 ohms. The SSP-75 provides both Component, S-Video, and Composite signal paths. Though you can route independent signals to the Main area and the Zone area, care must be taken if you intend to watch a movie or program simultaneously in the Main and Zone areas. You may wish to use two connections for your DVD, utilizing the Component Video and Digital audio for the Main area using VIDEO 2, and the Composite Video and Mixed two channel Analog Audio from the same DVD connected to VIDEO 3. Simpler systems, those requiring only a single video signal path, can elect any of the Video selections. [. . . ] With computers, most of these difficulties result from AC line surges, sags or outages, spurious inputs, etc. The SSP-75 functions in an even harsher environment as it will be connected to cable and satellite video sources that provide even more direct pathways for unwanted electrical or electronic interference. If you experience unexpected behavior, or if the SSP-75 `locks up' and does not respond to control commands, simply reset it by turning the rear panel On/Off switch Off. This resets all the internal control circuitry and will undoubtedly solve almost all the problems you experience. [. . . ]