Frequently Asked Questions - Focusrite TrakMaster Pro Manual

• For Professional use, J2 should be left fitted, as supplied from factory.
• For Consumer use, J2 should be removed.
Selecting Word Clock Impedance
When using the module as the only slave, or at the end of a chain of several slaves, 75
Lo Z should be selected. If using the module with several other slave modules in a
chain, Hi Z should be selected. See the following diagram:
• For 75 Low-Z operation, J1 should be left fitted, as supplied from factory.
• For Hi-Z operation, J1 should be removed.
Replacing the Top Cover
The top cover should now be replaced using the 10 crosshead screws. The installation is
now complete and the unit can be reconnected to the AC power.
Notes
• When syncing to an external clock the sampling frequency should be set to match
between the two pieces of equipment.

FREQUENTLY ASKED QUESTIONS

A: These are different signal operating levels. +4dBu usually refers to professional
equipment and -10dBV usually refers to semi-professional or consumer equipment. It is
important to make sure that any two or more devices connected to each other are
operating at the same signal level. The +4dBu/-10dBV line outputs on the rear of the
TrakMaster Pro give the option of either analogue output level. If the +4dBu output of
a device feeds the -10dBV input of another device, this may cause the second device to
overload. Alternatively, if the -10dBV output of a device feeds the +4dBu input of
another device, the second device may receive a signal level which is too low (i.e. too
quiet). -10dBV devices are usually connected using a mono 1/4" jack, this is known as
an 'unbalanced' connection. +4dBu devices are usually connected using a TRS (stereo)
1/4" jack, or XLRs. This is known as a 'balanced' connection.
10