Hybrid DJ CM4U User manual

4+1 CHANNEL DJ CLUB MIXER
CM4U
ENGLISH

PAGE 2

CM4U - CLUB SERIES PROFESSIONAL MIXERS
PAGE 3
OPERATION MANUAL
Dear customer,
Congratulations on the purchase of this quality mixing desk. To meet your requirements, this unit has been designed and built to
the highest standards, so that we can assure you that you have made a good and satisfying investment. To take full advantage of all
possibilities and for your own safety and the safety of your environment, please read these operating instructions carefully before you
start using the unit.
This 4+1 Channel DJ Mixer is a DJ mixing console with 1 microphone input, 4 stereo inputs, full channel EQ’s and balanced master
output, which makes this unit a very versatile choice in any environment from party to home.
1. Read this manual completely before using the product.
2. Keep this manual in your records for future reference.
3. Follow all instruction printed in this manual, otherwise warranty may be void.
4. Follow all printed security advice on the product itself. The lighting flash with arrowhead within an equilateral
triangle makes you aware of non-insulated AC mains voltage inside the unit. The exclamation mark within
an equilateral triangle makes you aware of important operating and maintenance instructions in the
literature attached to this product.
5. Take care of enough distance between this product and sources of hum and noise like electric motors and
transformers.
6. Carry this product with greatest care. Punches, big forces and heavy vibration may damage this product mechanically.
7. The manufacturer takes no responsibility for injury or damage caused by not following the safety precautions and
instructions printed in this manual.
General Advice:
INTRODUCTION
PRODUCT DESCRIPTION
SECURITY ADVICE BEFORE USE
WARNING!
Hazardous voltage. Risk of severe or fatal electric shock.
DANGER!
Safety hazard. Risk of injury or death.
Warning: Read this section carefully before installing, powering, operating, cleaning or servicing this product!
The following symbols are used to identify important safety information in this manual:
WARNING!
Read manual before installation and
operation.
WARNING!
Fire hazard.

PAGE 4
1. Only connect this unit to a mains socket outlet with protective earth connection, ground-fault (earth-fault) protection
and overload protection.
2. Where the mains plug or an appliance coupler is used as a dis-connect device, the disconnect device shall remain
readily operable.
3. To pull the AC Cord out of the wall outlet or the unit’s AC socket, never pull the cable itself, but only the AC plug.
4. Disconnect the unit from AC supply by pulling the AC plug out of the wall outlet or the unit’s AC socket before any kind
of cleaning on the product. Use smooth and dry cloth only for cleaning.
Check all connection cables before reconnecting the unit.
5. Do not expose this unit to any dripping or splashing liquids, and do not place objects filled with liquids, such as vases,
on the unit. Do not operate this unit near to open water or in high humidity.
6. Choose the position of the AC cord according to the lowest risk of damage by foot steps or by squeezing it.
Take especially care of the AC cord outlet on the unit as well as the AC plug and wall outlet at the other end of the cable.
7. Do not open the unit for service purpose, as there are no user-serviceable parts inside. Warranty will be void in any
case of unauthorized service by the user or other not authorized persons.
1. Take care of not placing the unit near sources of heat (e.g. powerful amplifiers, fog machines).
2. Take always care of sufficient air convection in the unit’s environment to avoid overheating, especially when mounting
in a closed environment. Make sure air convection slots – if any - are not blocked. Do not operate this unit in
environmental temperatures exceeding 40 degrees Celsius.
3. Check the total maximum power of your AC wall outlet if you connect several units to one wall outlet and avoid
any overloading.
1. Never use any accessories or modifications not authorized by the manufacturer of this unit.
2. Choose a location for operation where the unit is protected from vibration and where a fixed mounting position
is provided.
3. Before plugging the AC cord in the wall outlet, check whether the AC mains voltage and frequency is the same as this
product is specified for. Whenever your AC plug should not match the wall outlet, contact you dealer immediately.
4. If fluids have spilled into the unit or small parts have intruded the unit, immediately switch off the unit and hand it over
to the authorized service for a security check.
5. Disconnect the unit from AC supply by pulling the AC plug out of the wall outlet or the unit’s AC socket during a
thunder-storm in order to avoid any damage on the unit due to AC voltage peaks.
6. In cause of not correct function of this unit or damaged AC cord or other damaged parts, pull immediately the AC plug
out of the wall outlet and hand the unit over to the authorized service for a security check.
7. To meet all aspects of functionality and security during mainte-nance work to be performed on this unit, all parts
should be replaced by genuine spare parts. Consequently, take care of your dealer or maintenance company to be
authorized by the manufacturer.
This unit produces and absorbs electromagnetic radiation. The strength of radiation and the sensitivity for disturbing interference
matches the CE and FCC requirements. A corresponding sign is printed on the backside of the unit. Any change or modification may
affect the behavior of the unit concerning electromagnetic radiation, with the CE requirements eventually not to be met any more.
The manufacturer takes no responsibility in this case.
This unit is immune to the presence of electromagnetic disturbances – both conducted and radiated - up to a certain level. Under peak
conditions, the unit is classified to show a “class C” performance criteria and may encounter temporary degradation or loss of function
which may need manual help to recover. In such case, disconnect the AC power from the unit and reconnect it again to recover.
This unit is build to conform to the ROHS standards and the WEEE directive 2002/96/EC of the European Parliament and of
the Council of the European Union. Under these regulations, the product shall not be discarded into regular garbage at the
end of its life, but shall be returned to authorized recycling stations
HEALTH ADVICE
FUCTIONAL ADVICE
ENVIRONMENTAL ADVICE
PROTECTION FROM INJURY & DAMAGE
PROTECTION FROM FIRE
PROTECTION FROM ELECTRIC SHOCK

CM4U - CLUB SERIES PROFESSIONAL MIXERS
PAGE 5
BACK PANEL
Please check that the box contains the following items:
Main parts: 1 pcs. Main unit
1 pcs. Mains cable
1 pcs. Operation manual
If any part is missing, please contact your dealer immediately for replacement.
Warning: After unpacking, and before plugging the AC cord in the wall outlet, check whether the AC
mains voltage and frequency is the same as this product is specified for (see rear panel of product).
Whenever the specified voltage or your AC plug should not match the local conditions, do NOT plug
the AC cord into the wall outlet and contact your dealer immediately.
1. AC inlet and fuse holder. Use the supplied AC cord to connect the unit to AC mains. Make sure voltage and frequency stated on the
unit comply with your local AC supply. The fuse can be accessed by the small drawer at the AC inlet. To change the fuse, unplug
the AC cord first, pull out the fuse drawer and replace the fuse ONLY with a fuse of SAME voltage and rating. If the fuse blows
again after replacement, hand over the unit to qualified service personnel.
2. Power switch. Switches the unit on and off. Make sure to switch the unit off when not in use.
3. Main stereo output. This is a balanced stereo output carrying the main output signal controlled by (27).
4. Main stereo output. This is an unbalanced out carrying the same signal as output (3).
5. Booth stereo output. This is an unbalanced output carrying the booth signal controlled by (28). This output can be used for a 2nd
zone which needs independent volume control, such as the DJ booth or the seating area of a club.
6. Record output. This is an unbalanced stereo output carrying the same signal as the main output (3/4), but not influenced by the
main volume control (27). This is normally used for recording the output to an external tape, CD or memory device.
7. Line inputs. These RCA connectors provide inputs for line-level signals to the assigned channels.
8. Phono Inputs. Depending on the position of the selector switches (9), these RCA connectors provide the following inputs: (A)
Position “PHONO”: input for phono-level signals to the assigned channels, featuring the necessary RIAA equalization. (B) Position
“LINE”: input for line-level signals to the assigned channels. Note that if the Phono inputs are not used and the sensitivity is
switched to “PHONO”, the inputs shall be terminated with the supplied termination plugs (as factory-inserted at delivery).
9. PHONO/LINE selector switches for PHONO inputs. These switches change the sensitivity of the PHONO inputs between PHONO
(RIAA equalized) and LINE level.
10. Microphone inputs for MIC2. This is a balanced ¼” TRS connector without phantom power provision, hence only suitable for
dynamic microphones. Please note that DJ MIC (MIC1) can only be connected from the top panel connector (12).
11. USB input. This allows the use of the mixer’s internal soundcard by connecting a PC to the mixer through this port and routing
the audio output signal to INPUT3 by means of the top-panel selector switch (16). Please note that this is NOT a host interface
with audio decoder, so this interface is not intended to directly connect hard disks or USB sticks with audio content. This
connector is only designed to act as an external USB 1.1 soundcard, to be connected to a PC. Apart from replaying audio from the
PC, this interface is bidirectional and also allows to record the signal present at the record output (6) digitally into the PC.
UNPACKING