Pr:o 18 Sub A, Pr:o 210 Sub A; Control Features - HK Audio PREMIUM PR:O Serie Manual Del Usuario

PREMIUM PR:O Active 1.4
Curving cable (for the PR:O 8 A only)
Included you'll find a curving cable. It aligns the
PR:O 8 A vertically, for instance, if you wish to
install the enclosure or mount it to a from a truss.
Simply attach it using the bolts at the bottom of the
cabinet's housing.
45°
Attaching the curving cable: The curving cable lets
you precisely aim the flown PR:O 8 A cab.
It attaches to the back of the PR:O 8 A.
• Remove the bottom two bolts from the connector
panel.
• Place the washers over the two holes.
• Insert the bolts to fasten the two plates attached
to the curving cable to the cabinet at a 45° angle
(refer to the diagram).
Note: The plates must be aligned to a 45° angle to
ensure safe operation!
• Tighten the bolts.
The cable kit includes:
- two washers
- two 5x25 mm recessed
hex-head bolts
- one cable with mounting plates
Caution: The curving cable serves solely to tilt the
cabinet; it is not a rigging point!

2 PR:O 18 Sub A, PR:O 210 Sub A

2.1 Control Features

1 Out L / Out R (Line Out Mid / High)
These two electronically balanced XLR inputs serve
to connect PREMIUM PR:O satellites (pin 1= ground,
2= +, 3= -).
2 Input L / Input R
These two electronically balanced XLR / 1/4" combi
inputs accept signals from mixing consoles
(pin 1= ground, 2= +, 3= -).
3 Through L / Through R
These two parallel outputs patch incoming line
signals through, for example, to other PREMIUM
PR:O active speakers or monitors (pin 1= ground,
2= +, 3= -).
4 Gain Bass
This knob adjusts the input level (center position =
0 dBV).
The 12 o'clock position is the ideal starting point
when operating the subwoofer in combination with a
PREMIUM PR:O active cabinet. Then you can simply
twist the knob to the left or right to cut and boost
bass frequencies. If you connect a PREMIUM PR:O
satellite, first set the Gain knob to the center detent
and then adjust the level to suit the given sound
reinforcement situation.
5 X-Over-Bass
The active crossover can serve to vary the top cu-
toff frequency of the subwoofer with a range of 75
to 150 Hz. The best cutoff frequency for the given
application depends on the surroundings and
satellite, so you will have to experiment.
Note: If you set the cutoff to a frequency higher than
110 Hz, the subwoofer will render mostly the lower
frequencies of signals generated by bass guitars,
kick drums, and low-end keyboard sounds. If you
set the cutoff to a frequency higher than 110 Hz, the
subwoofer will also render the lower frequencies of
voices and other sound sources.
6 Phase
The Phase switch changes the subwoofer's phase
position to match it to the connected satellite's
phase position (0° – 180°). Set the switch to 0° when
operating the PR:O 18 Sub A in combination with a
PREMIUM PR:O active cabinet. The PR:O 210 Sub
A's phase has to be reversed 180° to ensure it is in
phase with PREMIUM PR:O mid-/high-range units.
You may have to invert the phase for combinations
with other enclosures. If you are unsure, simply try
the 180° setting. If the bass response changes and
the signal sounds weak and washed out, the phase
setting is incorrect.
7 Limiter Status LED
This dichromic LED indicates the signal level and
limiter status. Green means the signal level is okay;
red means the limiter has engaged and is respon-
ding to high-volume signal peaks.
CAUTION! This is not a clip LED. It's okay if it
lights up red briefly every now and then; this merely
indicates the RMS Limiter is operating. If the signal
LED remains constantly in the red at signal peaks,
check the source signal's input level and back off
the speaker's Gain knob. A status LED that lights
up red continuously indicates there is a fault in the
speaker system.
8 Power Switch
This is the PREMIUM PR:O powered cabinet's on/off
button. The signal LED lights up green to indicate
the cab is powered up.
Note: The Power button is embedded to prevent
unintentional actuation. Set to Power On, the button
sits almost flush with the connector panel. This
ensures it is not engaged accidentally, yet remains
readily accessible.
9 Mains Input
Use the factory-included locking power cord to con-
nect this socket to a mains outlet. The catch holds
the cord in place, preventing accidental unplugging.
You must release the yellow catch on the bottom of
the plug before you can unplug the cord.
Note: This socket also accepts a standard Euro
mains cable, but it will not lock it in place.