Z-Systems z-8.8 User Manual

Z-Systems Audio Engineering z-8.8 Manual

z-8.8 Digital Detangler Manual

The z-8.8 digital detangler is a digital audio router, patchbay, and distribution
amplifier, all in one package. Furthermore, if you have purchased a version of
the z-8.8 with any combination of AES/EBU, S/PDIF, and optical inputs and
outputs, it can act as a format converter, as well.

The first step in using the z-8.8 is to connect all of your digital audio equipment
to it. The unit's rear panel is shown in Figure 1. The top row of connectors is
labeled "digital sources (from)" and the bottom row is labeled "digital destinations
(to)." This makes it clear that outputs from digital sources (i.e., DAT machine
outputs, CD outputs, etc.) connect to the top row of connectors and that inputs
to digital sources (i.e., D/A converter inputs, DAT machine inputs, etc.), connect
to the bottom row of connectors.

Figure 1 -- Rear view of z-8.8 (shown configured with AES/EBU only)

Once your various devices are connected to the z-8.8, you now have the power
to dynamically change the pattern of "who's talking to who" at the touch of a few

Figure 2 -- Normal mode of operation

Z-Systems Audio Engineering z-8.8 Manual

controls. Figure 2 shows the state of the z-8.8 in the normal mode of operation.
The eight-character LED display is used to indicate sources and the silk-screened
legend beneath it is used to indicate destinations. In other words, as shown in
Figure 2, source 1 is feeding destination 1, source 5 is feeding destination 2,
source 3 is feeding destinations 3, 4, and 5, and so on.

Suppose you wish to change the configuration so that destination 6 is being fed
by source 1. The first step is to turn the to knob until the character above
destination 6 is blinking. Then turn the from knob until the desired source is
showing in the LED display above the destination 6 legend. The next step is to
hit the route button. You will notice at this point that the LED display has
stopped blinking. This is to let you know that your changes have been sent to
the connection matrix.

In general, the procedure for connecting a source to a destination is as follows.
First rotate the to knob to get the display blinking above the desired destination.
Then rotate the from knob to display the desired source. Finally, hit the route
button to make the connection. You may make as many changes as you want
before hitting the route button. Remember, the blinking display is to remind
you to send your changes to the connection matrix.

Saving and loading presets

A very useful feature of the z-8.8 is its ability to save and load preset
configurations. To save a configuration once it has been set up, first hit the
save button. The z-8.8 in save mode is shown in Figure 3. Simply rotate the
left knob to bring up the desired "patch" number (you have up to 80 storage
locations) and then hit the save button again to finish the operation. To abort
the save operation, just hit the cancel button. Hitting either save or cancel
will return you to the normal mode of operation.