12. ALT 3-4 Output
The unbalanced signal sent from these outputs is fed from the
ALT 3-4 mixing bus, and can be used in conjunction with a large
array of devices, including signal processors, other PA systems,
recording devices, and so on.
13. Channel Inserts
Located on the rear of the Powerpod 820, the primary use for
these TRS phone jacks is for the addition of external devices,
such as dynamic processors or equalizers, to all mono input
channels. This will require a Y cord that can send (pre-fader and
pre-EQ) and receive signals to and from an external processor.
14. Power Connector and Fuse Holder
This port is for the addition of a power cable,
allowing AC power to be supplied to the mixer.
Please use the power cable that is included
with this mixer only. The Fuse holder, located
above the AC Power connector, is, of course,
for the POWERPOD 820's fuse. If the fuse
happens to blow, open the holder cover, and
replace the fuse with a suitable replacement
(as indicated on the fuse holder's cover).
15. Speaker Outputs
These 1/4" phone jacks are used to connect to speakers, fed
from internal power amplifiers A and B. To use these, simply
insert an appropriate 1/4" TS plug into them. Speakers with a
minimum load of 4 ohms each should be used. The output of
these jacks can be altered by using the Amp Select switch on the
front of the unit.
NB. Only use passive speakers in conjunction with the Speaker
outputs, as to avoid damaging any equipment.
One Speaker per Channel: When connecting a single speaker
to each channel's output, speakers with impedances between 4
and 8 ohms should be used.
POWERPOD 820
Two Speakers per Channel:
to the Speaker Outputs, the loading of each speaker should be
between 8 and 16 ohms (as two 8 ohm speakers will form a
total loading of 4 ohms, two 16 ohm speakers a total loading of
8 ohms, etc).
CONTROLS AND SETTINGS
Rear Panel
16. Power Switch
This switch is used to turn the mixer on and off. Ensure you turn
all level controls down before activating.
17. Phantom Power Switch
When this switch is in the on position, it activates
+48V of phantom power for all microphone
inputs, allowing condenser microphones (well,
the ones that don't use batteries) to be used on
these channels. Activating Phantom Power will
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be accompanied by an illuminated LED above
the left channel Level Meter. Before turning
Phantom Power on, turn all level controls to a
minimum to avoid the possibility of a ghastly
popping sound from the speakers.
NB. Phantom Power should be used in conjunction with balanced
microphones. When Phantom Power is engaged, single ended
(unbalanced) microphones and instruments should not be used on the
Mic inputs. Phantom Power will not cause damage to most dynamic
microphones, however if unsure, the microphone's user manual should
be consulted.
Channel Controls
18. Line / Mic Gain Control
This controls the sensitivity of the input
signal of the Line/Microphone input. The
gain should be adjusted to a level that
allows the maximum use of the audio, while
still maintaining the quality of the feed.
This can be accomplished by adjusting it
to a level that will allow the peak indicator
occasionally illuminate. All 4 mono channels
feature this control.
When connecting two speakers
16 17
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