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Settings; Alignment - HK Audio PREMIUM PR:O 8 A Anweisungen

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Confirm that the PREMIUM PR:O powered
enclosure's Mic/Line control is set to the
correct mode, the standard mode being Line.
Again, always switch on the PREMIUM PR:O
active cabinet last, that is, after you switch
on all connected devices. After you power the
system up by engaging the Power switch, a
system check prompts the fan to briefly kick
on and back off again in about five seconds.
The fan is temperature-controlled, actuating
only at very high volumes and temperatures
requiring cooling.
After you power up the cab by engaging the
Power switch, the Power LED lights up green
when the cabinet receives mains power. Set
the Gain Line In knob to the center or 12
o'clock position (= 0 dBV). This is the preferred
level if you have connected a mixer to the
PREMIUM PR:O active cabinet. If you are
patching a CD player or keyboard straight
into the cab, turn the Gain Line In knob
clockwise all the way to the far right to achieve
maximum volume. If the input signal is still too
weak, boost the level at the signal source, for
instance, by adjusting an MP3 player's volume
knob.
If necessary, you can turn the PREMIUM
PR:O powered enclosure's Gain knob
counterclockwise to the far left position and
then press the Mic/Line button. This boosts the
input signal by 30 dB. Then adjust the input
gain by slowly turning the Gain knob to the
right until you attain the desired volume. For
the best audio results, ensure the Limiter LED
(red) does not light up continuously.

1.4 Settings

Adjusting volume with the Gain knob
Twist this knob and engage the Mic/Line
switch line to adjust microphone and line
signal levels.
If you hear distortion or saturated signals,
first check the signal sources and, if possible,
reduce the output signal level there. If you
cannot adjust the level of the signal routed
to the PREMIUM PR:O active cabinet at the
source, match it to the power amps by backing
off the Gain Line In knob.
CAUTION: Never tape over the plug's ground
terminal - this endangers lives!
Tone (not available on the PR:O 12 MA)
Starting at the center or 12 o'clock position,
you can EQ the sonic image by turning the
knob to the right or left. Set it to „Music" to
attenuate midrange frequencies somewhat and
boost the low range frequencies for live or CD
signals.
Setting the knob to „Speech" enhances
intelligibility for public address purposes.
A corrective circuit automatically compensates
for EQ, balancing out the overall volume for
each setting.

1.5 Alignment

HK Audio DuoTilt™
(apart from the PR:O 12 MA, HK Audio Mono
Tilt™ with a 3° angle tilt for the PR:O 8 A)
The HK AUDIO DuoTilt™ pole mount lets you
align PREMIUM PR:O active cabinets along
the horizontal plane to prevent or reduce
troublesome ceiling reflections. The front
aperture of the HK AUDIO DuoTilt™ provides a
3° angle, the rear aperture a 7° angle of tilt.
If you set the full-range cabinets on a fully
extended cabinet tripod or mounting pole, opt
for the 7° angle. This setting works especially
well when addressing fewer listeners standing
close to the speakers. If you wish to address
more listeners further from the speakers, opt
for the 3° angle on the HK AUDIO DuoTilt™.
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°
Speaker Out
Min. imp. 8 Ohms
1
1
2
300 Watts
2
Premium Pr:o Active
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!
1.6
9

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