Tips And Tricks; Accessories; Troubleshooting; Technical Data - HK Audio XBA 18 Manual Del Usuario

4 Tips and Tricks

• Do not expose electronic circuitry to moisture!
When you set the Subwoofer up outdoors, be sure
to protect it against rain. Keep soft drinks, beer
or any other liquids well away from the cabinets
to protect their electronic components from short
circuits.
• To ensure proper ventilation, make sure the sub
woofer is placed a sufficient distance away from
walls and isn't covered by curtains and the like.
This is vital to keep the power amps cool.
• Ensure that the vents on the subwoofer's side
panels are free of dirt and that the fans can rotate
freely. Otherwise, electronic components may
overheat and suffer damage.
• The XBA 18 delivers optimum sound, so you should
provide it with optimum input signals! Noise
such as humming is generally caused by defective
cables, the wrong type of cords, or unbalanced
signals routed into the mixing console.Check all
signal and mains cables.
• Prevent distortion! Not only is it unpleasant to your
audience's ears, it also endangers your equipment.
Make sure all components connected directly
and indirectly to the XBA 18 have sufficient power
ratings, and that they don't distort because they're
running at their respective limits. Provide an
undistorted signal that doesn't have to be cleaned
up by backing off the Gain knob.
• Avoid ground loops! You may encounter a ground
loop when the mixer is grounded via a mains cord
which isn't connected to the same mains circuit
as the XBA 18. To prevent this problem, always
connect the XBA 18 and the mixing console to the
same electrical circuit(same phase!).
CAUTION: Never tape over the plug's ground
terminal—this endangers lives!
5 Accessories XBA 18
HK Audio Protective Cover for XBA 18
Tear-resistant and water-repellant, this rugged bag
is thickly padded to afford lasting protection for the
XBA 18 during transport.
To learn more about Original HK AUDIO
Accessories, talk to your HK AUDIO dealer or visit
www.hkaudio.com.

6 Troubleshooting

The POWER LED does not light up when
switched on.
1 Check if the PowerCon mains cord is plugged into
the Mains Input.
2 Check if the mains power supply is providing
current.
The system is on, but no sound is issuing from the
speaker.
1 Check the cord connected to the Input.
2 Check if the signal sources (mixer, keyboard, CD
player) are on.
3 Is the Gain knob turned up?
4 Check the speaker cords for defects.
5 Check if the Speakon connectors are engaged in
their sockets (rotated to the right). They must
be locked in place to establish an electrical
connection.
The subwoofer's low frequency output is weak.
1 Check the Gain knob setting. Adjust it to set the
subwoofer's volume to the desired level.
The rendered signal sounds distorted.
1 Check the LED displays on your mixer. They should
not be constantly in the red. If necessary, back off
the volume at the mixer.
2 If the LED displays on your mixer are in the green,
back off the XBA 18's Gain knob.
3 Observe the clip LED on the XBA 18's control
panel. This may light up, but only intermittently.
Under no circumstances may they continuously
illuminate. If this is the case, turn down the Gain
knob.
Annoying humming
1 Check the cords connecting the signal source to
the XBA 18. Replace defective cords.
2 If you cannot pinpoint the cause of the humming,
engage the Ground switch. This should remedy the
problem in most cases.

7 Technical Data

Frequency range: 37 Hz - fx +/- 3 dB:
SPL 1W@1m:
102 dB@10% THD (half space)
Max. SPL @1m:
130 dB@10% THD (half space)
Subwoofer: 1x 18" Speaker
Line in: XLR, electronically balanced
(pin1 = Ground; 2= +; 3= -)
Input impedance: 47 kOhm
Input sensitivity: 0 dBu at max. GainMax .
Max. input level: + 22 dBu
Amplifier: Power output:
1x 1000 Watt/Class D power amp
Weights and dimensions:
Weight: 55,5 kg/ 122.4 lbs.
Dimensions (WxHxD):
53 cm x 63.5 cm x 68.5 cm
20 7/8" x 25" x 27"
Pole mount: M20 threaded base plate
General electrical data:
Protection class 1 (protectively earthed)
Max. current consumption
4.3 A (220 – 240 V) • 8.6 A (100 – 120V)
Mains voltage range: +/- 10 %
Ambient operating
temperature range: -10° C - +35° C
Internal fuse: T8A
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