Thank you for purchasing the Melior Bitstream Converter.
The Melior converter
uses the second generation Philips SAA-7350 chip instead of the 7321 used by
most other manufacturers. This technology combined with Museatex's own proprietary
circuitry in the audio and filtering sections allows the Melior Bitstream
Converter to set new standards among Bitstream converters.
The converter includes both a fiber optic and coaxial input. The input frequency rate is automatically sampled and displayed on the front panel. This means that any two digital sources, regardless of the sampling rate, can be used with the converter.
Please take the time to read these instructions so that you may fully appreciate the versatility of the Melior Bitstream Converter.
The converter should be placed where it will be used and then connected between the digital sources and the pre-amp or control center.
Caution: When connecting the Melior D/A Bitstream Converter, ensure that the following conditions are observed:
Any source component that has digital output can be connected to the Melior D/A Converter. Make sure that the digital output of your source is functional. Some of the older units with so-called "digital" outputs do not have usable outputs.
Connect the digital outputs of your source components to the digital inputs on the converter using a fiber optic, or conventional RCA type coaxial cable. Digital signals are not separated by channel, so there is only a single input for each source.
Given the option of using fiber optic or coaxial cable, we recommend using fiber optic cable because of its lower signal loss rate, especially over lengths in excess of 2 feet. The fiber optic input used on the Melior D/A Converter is Electron Industry Association of Japan Standard CD-340. Should your sources use any other type of connector, suitable adapters should be available from the manufacturer of the source component.
After the digital sources have been connected to the converter, the analog outputs must be connected to your preamplifier. The analog outputs are clearly marked on the converter. Connect the left and right channels to the corresponding inputs of your preamplifier.
Once the connections have been made, you may plug in the AC power cord of the converter and turn on your digital source components and amplifier.
The front panel of the converter includes six status indicator lights and a single INPUT button that toggles between fiber optic and coaxial input. When the converter is first plugged in, the status indicator labeled OPTIC will blink for several seconds and then stay illuminated. This indicates that the unit is ready to receive signals from the source connected to the fiber optic input. To select the coaxial input, simply press the input button on the front panel. Pressing the input button again will switch back to fiber optic input. The status indicators will switch between OPTIC and WIRE accordingly.
Once you have selected the appropriate input, ensure that the volume is turned down and play the source that is connected to that input. If the connections have been made correctly, the display indicators should now show the sampling bit rate and record emphasis status (emphasis is a digital recording process similar to the Dolby process used in analog recordings.) The sampling rate is indicated by the indicator labeled DMPH. If this indicator is illuminated, then the source signal was recorded using emphasis and the de-emphasis circuit in the converter is active.
You may now switch between input sources at the touch of a button, while the converter automatically selects the correct sampling rate and emphasis status for the source and recording that you have selected. If an input is selected that does not have a source connected, or if there is an incompatible signal coming form the selected input, the converter will cut off any signal to its outputs and none of the status indicators for sampling rate will be illuminated.
As explained in the previous section, the fiber optic input is automatically selected when power is first applied to the converter. If you are regularly disconnecting power to the converter, perhaps from a central power switch, you may wish to change the default power-on input to the coaxial input. This requires adjustment of a jumper inside the unit, and should be referred to your dealer or other authorized service technician if you wish to make this change.
Like all Museatex products with wood finish, the wood should be cared for and polished like fine furniture. Never use solvents as they will dissolve the lacquer. The acrylic surfaces should not be cleaned with glass cleaner that contains ammonia. Use a Plexiglas/acrylic cleaner instead.