Connecting Sources; Connecting Sources To The Input Connectors; Phantom Power Supply Setting; Selecting Channel Source - Fostex LIVE RECORDING MIXER LR16 Owner's Manual

Connecting sources

• Connecting sources to the input connectors

Each of mixer channels 1 through 16 provides
a combo type -- a combined XLR connector
and phone jack in one. You can connect a
microphone to the XLR connector or connect
a line signal to the phone jack. (The phone
jack can accept both balanced and unbal-
anced signals.)
You can adjust the input gain using the [TRIM]
control on each mixer channel strip.
T INSERT INSERT INSERT INSERT INSERT
K
K
PHANTOM POWER

• Phantom power supply setting

48 V phantom power can be supplied to the
XLR input connectors. For most of condenser
microphones, the phantom power is required.
You can turn on or off phantom power using
the [PHANTOM] switches in eight channel
groups (1-8 and 9-16) using these switches.
INSERT INSERT INSERT INSERT INSERT INSERT
CONTROLLER PANEL LOCK
LOCK
PHANTOM POWER
When the [PHANTOM] switch is set
<Memo>:
to ON, the corresponding [PHANTOM] indi-
cator on the control panel is illuminated.
When you turn off phantom
<Note>:
power, the indicator is not immediately
turned off, however, phantom power is
immediately turned off.
PHANTOM
INSERT
<Note>: When you turn on the phantom
power, make sure that the [TRIM] controls
on the corresponding mixer channels are set
fully left (minimum) or the LR16 is powered
off.
Usually phantom power does not damage a
dynamic microphone, however, do not con-
nect an old ribbon microphone to an input
connector to which phantom power is sup-
plied.

• Selecting channel source

Setting the [SOURCE] switch on each mixer
channel to "INPUT" ( ) selects the channel
input signal. Setting the [SOURCE] switch to
"TRK" ( ) selects the track playback signal,
or the [SUB IN] signal or the memory play
signal when it is assigned to the channel.

Adjusting the input level

The [TRIM] control adjust the head amp gain
of each input signal. To get the optimum gain,
set this control appropriately so that the
[PEAK] indicator lights at the maximum in-
put level.
By adjusting this control appropriately, the
LR16 can accept a signal within -60dBu and
-12dBu for an XLR connector is connected,
while it can accept a signal within -40dBu and
+8dBu when a phone plug is connected.
It is important to set the [TRIM] con-
<Memo>:
trol appropriately. Otherwise, the signal may
be distorted or noisy.
Optimum gain
Clipping level
Clipping level
<Note>: The [TRIM] control the gain of the
head amplifier with a two-stage pre-amp and
there is a point where the gain is switched
(at approx. -35 dBu for XLR input, -15 dBu
for phone input). At this point, a noise may
be generated.
35
Model LR16 [Mixer functions]
Too high
Too low