The box RA12 Manuale utente
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IMPORTANT SAFETY INSTRUCTIONS
For your own safety you should read this
section in full rst!
Intended use
This active monitor is intended exclusively for the transmission
of audio signals according to this manual and the specications
given here. By using it in any other way you face the risk of electric
shock. No warranty claims will be granted for damage resulting
from improper use!
Risk of electrical shock!
Connect the device only to a properly wired and earthed•
electrical wall socket providing a mains voltage of 230 V~/ 50
Hz.
NEVER operate the device if the power plug or power the cord is•
damaged.
NEVER submerse the device in water. Wipe it only with a slightly•
damp cloth.
NEVER expose the device to rain or moisture and never use it in•
a damp or wet environment.
Do not subject the device to high temperatures, direct sunlight,•
severe vibrations, shocks or tremors, or excessive dust.
Ensure that the power cord does not become wet during•
operation.
You must NEVER open the housing of the device or try to repair•
it. There are no user serviceable parts inside. Warranty will
become void if you open the housing.
Do not place objects containing uids, e.g. ower vases or beer •
bottles, on or near the device.
Notice regarding power disconnection:•
To switch the device off and to disconnect it from the power
source the power plug must be removed from the power socket.
For this reason the device should be placed in a position where
a constant unobstructed access to the power socket is assured,
thus in an emergency situation you are able to immediately
pull out the power plug. To eliminate the risk of re you must
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completely disconnect the power plug from the power socket
after the device has been used.
Always grasp the power cord by the plug. Do not pull on the•
cord itself and never touch the power cord with wet hands as
this could result in a short circuit or an electrical shock. Do not
place the device, speaker cabinets or anything else on the power
cord and make sure that it does not become clamped. Place the
power cord in a position where it can not be trod on. A damaged
power cord can cause a re or an electrical shock. Check the
power cord from time to time. Should it become damaged contact
our customer service centre to have it replaced.
Riskofre!
NEVER leave the device unattended while it is switched on.•
Do not place any open sources of re, like candles, on the device.•
Do not operate or store the device in hot locations or near heat•
sources like stoves, radiators or the like.
When a thunderstorm with the risk of lightening threatens•
please disconnect the device from the mains power.
Risk of personal injury!
Keep the power cord and device away from children. Children•
frequently underestimate the dangers of electrical equipment.
Ensure a safe location for the device• .
Do not operate the device if it has sustained a fall or is damaged.•
Arrange for the device to be checked and/or repaired by qualied
technicians.
Important!• Listening to music for long periods and at high
volume levels can lead to hearing damage!
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The operating elements
. . . on the front panel
1. BASS
Bass tone control for the line level input (e/t). Increase the
bass tone by rotating clockwise and decrease the bass tone by
rotating counter-clockwise.
2. PEAK
Overload indicator.
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3. LINEINL
Line level input socket.
4. SIGNAL
Signal indicator.
5. LINEINR
Line level input socket. Signal will be transferred from this
socket to the LINE OUT (u) after it is adjusted by LINE
VOLUME control (i).
6. LINEOUTL
Signal output socket. Delivers the output signal.
7. LINEOUTR
Signal output socket. Transfer the signal on line (e/t) which
is controlled by (1) to the signal input socket of another active
speaker. It is also the signal output of AUX1/AUX2 which is
controlled by (10) and (11).
8. LINEVOL
Volume control for the line input L / R (e/ t). Increase the
volume by rotating clockwise and decrease the volume by
rotating counter-clockwise. Attention: First please adjust
the volume to minimum before switching the unit on and
transmitting signals. Then adjust to appropriate volume.
9. TRE(ble)
Treble tone control for the line level input (e). Increase the
treble tone by rotating clockwise and decrease the treble tone
by rotating counter-clockwise.
10. AUXVOL
AUX volume control. Increase the volume by rotating
clockwise and decrease the volume by rotating counter-
clockwise. Be off at the Min. position.
11. AUXinput
AUX signal input socket.
12. LINEMICswitch
Optional switch for microphone signal input and line signal
input. Press button in for microphone signal, release button
for line signal.
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. . . on the rear panel
13. FUSE
14. POWERINPUTSOCKET
Mains connection socket. Use the mains cable provided to
connect this socket to a properly wired and earthed wall
outlet (AC230~/50Hz).
15. POWERSWITCH
Press the POWER button (I - ON position), to switch the
device on. Press this button again (O - OFF position), to
switch it off.
16. OUTPUT
Power output socket for further passive speakers.
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Applications samples
Attention: Because LINE IN’s R channel does not provide the power
output, the signal should connect to LINE IN’s L channel when
connecting few pieces speakers.
1. Stereo mode I. (long distance)
2. Stereo mode II. (short distance)
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3. Stereo+Mic(one)
4. Active + passive
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Diagrams
Frequency response
Phase response
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Waterfall
THD
Indice
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