7
Linking
6 LINK In certain situations four outputs may not be adequate, for example at a news conference where each
reporter requires a feed, for this reason we have incorporated a very versatile, but intuitive linking system,
that effectively converts the 4X4 into a pressbox. Linking is via three switches, so there’s no need to open the
unit up to swap jumpers, or worse still, re-solder connections. If a link switch is active the input feeding the
four outputs of that particular channel is disabled, and re-routed to the input of the previous channel. If the
link switch of that channel is also active, then it is re-routed further to the previous channel. In this way any
combination of linking can be available -
Headphones
A single 1/4” TRS jack socket 7 with fully adjustable level control 8 has been incorporated to provide headphone monitoring.
To determine which input is monitored see LISTEN 5 .
Caution should be used when using high output levels and low impedance headphones.
DRAWMER do NOT accept any responsibility for damage caused to the operator’s hearing or speaker
devices by the use of excessive output levels.
Inputs
9 INPUT The input is via a standard XLR for both mic and line input - pin one is screen, pin two is positive
(hot) and pin three negative (cold).
Outputs
Each input of the four channels is split (duplicated) into four seperate outputs either electronically or using Transformer
Isolation (a factory fitted optional extra).
Transformer isolation is the best way to remove ground loops that cause hum and buzz (by decoupling the ground ), RF
interference (by improving the "balanced" characteristic of the line (called "Common Mode Rejection" or CMR)), or to isolate
mixing consoles so that the levels of one does not effect the other down the cables within the audio system.
An inherant problem with a direct splitter is that overall input impedance is reduced, which in critical high quality applications
can degrade frequency response, particularly on long cables, such as those used in outside recording and broadcast, and
add unwanted interference. The combination of adding gain via the preamplifier and transformer isolation improves this
dramatically, allowing for longer cable lengths and clearer more defined recordings.
10a 10b 10c
OUTPUTS Each channel has four outputs, via standard XLR connectors (pin one is screen, pin two is positive
(hot) and pin three negative (cold)) three of which are located on the rear panel adjacent to the input,
10d and one, for each channel, is located on the front panel.
4x 1input/4outputs 1x 1in/8out & 2x 1in/4out 2x 1input/8outputs
1x 1in/8out & 2x 1in/4out 1x 1in/12out & 1x 1in/4out 1x 1input/16outputs
8
(12 pages)
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