Hill Audio DMW-300 User Manual page 22

7.2. Powering up
Following a proper power-up sequence protects your equipment – specifically speakers – and your
ears. Follow the below procedure (and the inverse for switching off):
Turn down all output volume controls of any equipment in your audio system.
Switch on your audio sources first (Tuners, CD Players, PC's with soundcards, Tapedecks, etc.)
Switch on the audio mixer
Switch on any audio processor between the mixer and the amplifier(s) [if any].
Switch on the amplifier(s).
Turn up the audio level on your sources if such controls are provided.
Set the audio output of your mixer to a low level.
Set the audio output of any audio processor between the mixer and the amplifier(s) to a medium
level [if any such processors].
Turn up the volume controls of your amplifier(s) slowly.
Make adjustments to all volume settings as needed.
7.3. Use
Apart from using good equipment, good sound comes from using it correctly. Level setting mistakes
are one of the common reasons why even good equipment may not perform as desired. For setting
levels, please be reminded that two guidelines need to be followed:
Avoid distortion by leaving some headroom. Never overrun any audio-equipment's inputs. Level
meters and displays allow you to make sure that signals do not enter critical levels.
Avoid unnecessary amplification by using as little attenuation as possible. For example, if you turn
down the input gain of a mixer to minimum, and then increase the main output of the mixer to maxi
mum to drive your amplifier properly, you will create unnecessary noise, as you first dispose of some
already existing signal level, and then later apply amplification (tainted with noise) to make it up.
8. Connections
The DMW300 uses the below connector types, for which the pin assignment must comply with the
following specification. Always make sure to use good connectors and cables to ensure proper opera-
tion. Balanced connections are to be preferred over unbalanced connections where applicable and
feasible. Avoid unbalanced connections exceeding 2m of cable length.
XLR female
RCA
CABLE Types
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USER MANUAL - DMW300 NETWORK | FM | USB RECEIVER & PLAYER
Structure
1 1
plug
3 3
side
2
2
tip tip
sleeve sleeve
1
cable
3
side
2
shield
red
black
2-conductor shielded cable
(for balanced connections)
Balanced Unbalanced
connection connection
red = 2 red = 2
black = 3 shield = 1+3
shield = 1
red = tip red = tip
black = sleeve shield = sleeve
shield = uncon.
red
shield
1-conductor shielded cable
(for unbalanced connections)