Phantom Powering; Pad Switches; Setting Input Channel Gain; Metering Input Channels - Yamaha 01V Owner's Manual

Phantom Powering

Input channels 1 through 12 feature +48 V phantom powering for use with
CH 1-6
condenser-type microphones. Phantom powering is supplied to the bal-
ON OFF
anced XLR-3-31-type connector, and can be switched for inputs 1 through 6
and inputs 7 through 12. Phantom powering should be turned on only when
CH 7-12
a condenser-type microphone is connected.
ON OFF
Warning: Make sure that phantom powering is turned off when connecting an unbal-
anced source to an XLR input.

Pad Switches

Input channels 1 through 12 feature 26 dB pad switches. Input pads attenu-
ate the input signal by 26 dB, allowing the input preamp to work with
26dB
high-level signals. You may need to use a pad with "hot" signals from bass or
snare drum microphones, or "hot" line-level signals. PAD switch settings are
not stored in scene memories.

Setting Input Channel Gain

GAIN controls adjust the gain of the input channel preamps. They're used to optimize
the input signal level for the best signal-to-noise performance, and should be set in con-
junction with the level meters on the HOME pages. Ideally, the GAIN control should
be set so that the signal level is relatively high, and it's okay for it to reach CLIP occa-
sionally. If CLIP is reached often, however, back off the GAIN control a little, otherwise,
signal distortion may occur. The GAIN control should be set with care. If it's set too low,
the signal-to-noise performance will suffer. If it's set too high, unpleasant signal clip-
ping and distortion may occur.
The GAIN controls on input channels 1 through 12 are designed for use
with microphone signals, and have an input sensitivity of –16 dB to
–60 dB. Used in conjunction with the 26 dB PAD switches, however,
–16 –60
these channels can also be used with line-level signals and "hot" micro-
+10 GAIN –34
phone signals. With the pad switch on, input sensitivity is +10 to –34 dB.
A detented action allows for accurate repeat setting.
The GAIN controls on input channels 13 through 16 are designed for use
with line-level signals, and have a gain range of –10 dB to 20 dB.
+10 –20
GAIN
GAIN control settings are not stored in scene memories.

Metering Input Channels

Signal levels can be metered on the HOME pages. See "Metering Signal Levels" on page
83 for more information.

Phantom Powering

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