EAW CAZ2500 Benutzerhandbuch
CAZ Series –
7
5. OPERATION
The following steps will help you set up your amplifi er, and
get the levels just right.
get the levels just right.
GETTING STARTED
1. Be sure the amplifi er’s POWER switch is off when
making any connections to or from the amplifi er.
2. Turn down both Level controls.
3. On the rear panel, set the SUBSONIC FILTER switch OFF
and the CLIP LIMIT switch ON.
4. Determine which AMP MODE is best for your application.
CONNECTIONS
1. In STEREO mode, connect the cables from your mixer
(or other signal source) main line-level outputs to the
amplifi er’s A and B inputs.
amplifi er’s A and B inputs.
2. In MONO or BRIDGE mode, connect one cable from your
mixer (or signal source) main line-level output to the
amplifi er’s A input only.
amplifi er’s A input only.
4. In STEREO and MONO modes, connect your speaker
wires to the CHANNEL A and CHANNEL B screw terminal
outputs. Take care to observe the correct polarity.
outputs. Take care to observe the correct polarity.
• The A(+) output terminal connects to the left
loudspeaker red (+) terminal.
• The A(–) output terminal connects to the left
loudspeaker black (–) terminal.
• The B(+) output terminal connects to the right
loudspeaker red (+) terminal.
• The B(–) output terminal connects to the right
loudspeaker black (–) terminal.
5. In BRIDGE mode, connect your speaker wires from a single
loudspeaker to the center pair of screw terminals.
6. Plug all the sound system components into suitable AC
outlets, properly grounded and capable of delivering
adequate current.
adequate current.
7. Make sure your signal source is powered up and delivering
signal to the amp.
8. Turn the power amplifi er’s switch on. Verify that the
POWER LED lights.
9. Slowly turn up both Level controls on the amplifi er. You
should hear music and see the SIG LEDs fl ashing. If the OL
(Overload) LEDs are fl ashing, turn down either the Level
controls on the amp or the source signal’s output level
controls (i.e., master faders), until the OL LEDs either blink
occasionally or not at all.
(Overload) LEDs are fl ashing, turn down either the Level
controls on the amp or the source signal’s output level
controls (i.e., master faders), until the OL LEDs either blink
occasionally or not at all.
OPERATING TIPS
• Do NOT drive any of your electronic equipment into
clipping, particularly the power amplifi ers. This can easily
damage the loudspeakers.
damage the loudspeakers.
• If driven into clipping, even an amplifi er with a power
output rating lower than the loudspeaker’s power rating
can cause damage to a loudspeaker.
can cause damage to a loudspeaker.
• Avoid sustained microphone feedback. This can quickly
cause failure of high frequency drivers.
• Sometimes external signal processing is desirable to
“voice” loudspeakers to accommodate particular program
material, less than optimum acoustics, feedback control,
or personal taste. For these purposes, use a suitable
electronic signal processor. This can be as simple as a 1/3
octave graphic equalizer or a fully capable DSP (digital
signal processor) such as the EAW DX810 or MX8750.
material, less than optimum acoustics, feedback control,
or personal taste. For these purposes, use a suitable
electronic signal processor. This can be as simple as a 1/3
octave graphic equalizer or a fully capable DSP (digital
signal processor) such as the EAW DX810 or MX8750.
• Avoid extreme boosts on equalizers as these can cause
excessive input to the drivers at the boosted frequencies.
Generally, cutting frequencies is preferred to adjust the
frequency response.
Generally, cutting frequencies is preferred to adjust the
frequency response.
• With appropriate signal processing, your system should
produce exceptionally good sound. If it is used in a room
with problematic acoustics, there is little you can do to
overcome the room problems with electronic adjustments.
Your best solution is careful placement and aiming of the
loudspeakers so most of the sound is directed only at the
audience.
with problematic acoustics, there is little you can do to
overcome the room problems with electronic adjustments.
Your best solution is careful placement and aiming of the
loudspeakers so most of the sound is directed only at the
audience.
• EAW Commercial amplifi ers are capable of producing
sound levels from speakers that can be damage your
hearing. Take precautions so that audiences are not
exposed to such levels. If you must expose yourself to
these kinds of volume levels, wear adequate hearing
protection.
hearing. Take precautions so that audiences are not
exposed to such levels. If you must expose yourself to
these kinds of volume levels, wear adequate hearing
protection.
• Take care when moving or lifting the amplifi er. Injury to
you or damage to the amplifi er can result from careless
handling. Remember to lift by bending your knees, not your
back.
handling. Remember to lift by bending your knees, not your
back.
• Never plug amplifi er outputs into anything except speakers.
• Before making connections to an amp or reconfi guring an
amp’s routing, turn the amp’s level controls down, turn the
power off, make the changes, turn the power back on, and
then turn the level controls back up.
power off, make the changes, turn the power back on, and
then turn the level controls back up.
• If you shut down your equipment, turn off the amplifi ers
fi rst. When powering up, turn on the amplifi ers last.
• Save the shipping box and packing material.