Setting Up - Chapter 1
Using Inserts
By using individual channel inserts, you can dedicate the Q20 to a specific channel (or pair of channels) on the mixer. The Insert connections on the back of the mixer provide a way of ÒinsertingÓ external processing equipment into the signal path. The insert occurs after the input amplifier, and before the main fader; essentially it is the same as connecting the source (instrument or microphone) into the Q20 before the mixerÕs channel input. However, some mixing consoleÕs inserts come after the EQ section, and may therefore be different from the original signal.
Usually, insert connections require a special, stereo-splitting Y-cord to be connected (one stereo plug provides both send and return while two mono plugs connect separately to an input and output). These are known as TRS connectors (tip-ring- sleeve). The tip of the stereo plug typically carries the send or output of the insert jack, while the ring carries back the return. The sleeve represents a common ground for both signals. Check the manual of your mixer because some are wired differently (for example, having two separate jacks for send and receive).
Mono. This involves connecting a 1/4" TRS (tip-ring-sleeve) to the Insert jack of a single channel on a mixing console. The other end of the cable (which splits into two, 1/4" mono connectors) are connected to the [L] INPUT and [L] OUTPUT, respectively. If you do not hear any audio after making these connections, swap the input and output cables at the Q20, as these may be wired backwards. If the cable is color-coded, usually the red jack represents the send (which connects to the Q20Õs INPUT) and black is the return (which connects to the OUTPUT).
Channel
Insert