Hpf Block; Eq Block; Eq Controls - Yamaha PM 5000 Owner's Manual

Input Channel Section
3 [GAIN] Control
Adjusts the input level. When the [PAD] switch is off the
input level can be adjusted from –10 dB through –60 dB.
When the [PAD] switch is engaged the range is from +16
dB through –34 dB.
NOT E
Stereo modules feature concentric gain controls: the inner control
adjusts the gain of the left channel and the outer control adjusts
the gain of the right channel.
4 [L+R] Switch (stereo modules only)
When this switch is engaged the stereo input signal is
summed to a mono mix, allowing the stereo input
modules to be used as mono input modules, as required.
NOT E
To maintain the proper subjective signal level the left and right
channels are attenuated by 3 dB.
5 [ø] (Phase) Switch
Engaging this switch reverses the phase (also referred to
as the "polarity") of the input signal.

HPF Block

The high-pass filter can be used to attenuate unwanted
low-frequency noise that can adversely affect the overall
sound.
6 [HPF] Switch and Control
The filter is activated when the switch engaged, and the
control can be used to adjust the high-pass filter cutoff
frequency from 20 Hz through 400 Hz. The filter has a
12-dB/oct. cutoff slope.
16
6

EQ Block

This 4-band equalizer features
individually-adjustable HIGH,
HI-MID, LO-MID, and LOW
bands for versatile shaping of
the channel signal. The HIGH
and LOW bands are switchable
between shelving and peaking
operation, while the HI-MID
and LO-MID bands are peaking
types.

7 EQ Controls

Two controls are provided for
each EQ band: the upper "Q"
control adjusts bandwidth,
while the lower concentric
control adjusts frequency (outer
control) and gain (inner
control). The HIGH and LOW
bands additionally have a
peaking/shelving switch that
determines the band's mode of
operation: engaging the switch
selects the shelving mode.
1 kHz ~ 20 kHz, -15 dB ~ +15 dB (peaking
HIGH
and shelving modes)
HI-MID 400 Hz ~ 8 kHz, -15 dB ~ +15 dB
LO-MID 80 Hz ~ 1.6 kHz, -15 dB ~ +15 dB
30 Hz ~ 600 Hz, -15 dB ~ +15 dB (peaking
LOW
and shelving modes)
* For all bands Q (bandwidth) can be adjusted from 0.5 ~ 3.0.
8 [EQ] Switch
Turns the 4-band EQ block on or off. When the [EQ]
switch indicator is off the EQ circuitry is bypassed. EQ
is active when the indicator is lit.
7
8