Hk-audio LUCAS SMART User Manual download pdf (Page 9)

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Ground Lift Switch

If you encounter low frequency hum, try activating

the Ground Lift switch, which severs the chassis

earth circuit. If this doesn’t eliminate the problem,

check all cables connected to the L.U.C.A.S SMART

system and all signals routed to the mixer until you

pinpoint the problem.

Caution: Never tape over the plug’s ground terminal

– this endangers lives!

6 L.U.C.A.S SMART Accessories

L.U.C.A.S SMART Add-On Package

This complete accessory kit for L.U.C.A.S SMART

consists of two aluminum speaker stands, one gig

bag and two seven-meter speaker cables.

L.U.C.A.S SMART Roller Bag

A convenient and secure transportation solution for

the L.U.C.A.S SMART system, this roller bag offers

rugged upholstered bags designed to protect the

subwoofer and satellites. Simply strap the bag con-

taining the satellites to the subwoofer and transport

the entire PA system easily on the built-in casters.

The roller bag also offers several practical compart-

ments, perfect for storing cables, microphones and

even small mixers.

L.U.C.A.S SMART Wall Mount

Wall-mounting bracket for L.U.C.A.S SMART satellite

speakers.

To learn more about original HK AUDIO

accesso-

ries, talk to an HK AUDIO

dealer near you or visit

www.hkaudio.com

7 Tips and Tricks

1 Don’t expose electronic circuitry to moisture! When

you set the system 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.

2 L.U.C.A.S SMART delivers optimum sound when

you provide it with optimum input signals! Noise

such as hum is generally caused by defective

cables, the wrong type of cables, or unbalanced

signals routed into the mixing console. Check all

signal and mains cables.

3 Prevent distortion! Not only is it unpleasant to

the ears of your audience, it can also endanger

your equipment. Make sure all components

that are connected directly and indirectly to the

L.U.C.A.S SMART system have sufficient power

ratings, and that they don’t distort from running

at their respective limits. Provide an undistorted

signal to the system. If you send a distorted signal,

backing off the Gain knob won’t help clean it up.

Keep it clean!

4 Avoid ground loops! Even if the signal-carrying

circuit is balanced, redundant ground circuits in

a single audio system may generate undesirable

humming. For example, you may encounter a

ground loop when the mixer is grounded via a

mains cord that isn’t connected to the same mains

circuit as the L.U.C.A.S SMART system. To prevent

this problem, always be sure to connect L.U.C.A.S

SMART and the mixing console to the same electri-

cal circuit. (Same phase!) If your equipment hums

despite this precaution, the Ground Lift switch can

be a great help.

Caution: Never tape over the plug’s ground terminal

– this endangers lives!

L.U.C.A.S SMART Roller Bag

L.U.C.A.S SMART Add On Package

L.U.C.A.S SMART Wall Mount

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Hk-audio LUCAS SMART User Manual Page 9

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