MMX44 - Mixer Monacor - Free user manual and instructions

USER MANUAL MMX44 Monacor

Before switching on ...

We wish you much pleasure with your new "img Stage Line" unit. Please read these operating instructions carefully prior to operating the unit. Thus, you will get to know all functions of the unit, operating errors will be prevented, and yourself and the unit will be protected against any damage caused by improper use. Please keep the operating instructions for later use.

The English text starts on page 7.

All operating elements and connections described can be found on the fold-out page 3.

1 Operating Elements and Connections

The figures on page 3 show model MMX-24USB. Model MMX-44, equipped with two additional mono input channels, features the same operating elements and connections except for the USB interface and the corresponding additional functions for USB operation.

1.1 Front panel

Figure shows the example of a mono channel and a stereo channel; the other input channels are identical.

1 Input MIC to connect a microphone (XLR jack, bal.)
Note: A phantom power can be activated for all microphone inputs item 22.
2 Input LINE to connect a unit with line signal level (e.g. musical instrument)
Mono channel:
1 × 6.3 ~mm jack, bal.
Stereo channel:
1 × 6.3 ~mm jack, Left L, bal.
1× 6.3mm jack,Right R,bal.
To connect a mono unit, only use the jack L.
3 Control GAIN for input amplification
4 Equalizer for HIGH, MID and LOW
5 Button for the low cut filter (high pass filter); when the button is pressed, unwanted signal parts below 75Hz (e.g. impact noise) will be suppressed
6 Button +4 / - 10 for matching the level of units with low line output level; when the button is pressed, the input level will be boosted
7 Control AUX SEND to add the channel signal to the effect send way; the signal will be picked up after the control LEVEL (10)
8 Overload LED PEAK; if its lights permanently, turn back the GAIN control (3) and/or the equalizer controls (4) accordingly (mono channel) or release the button +4 / - 10 6 (stereo channel)
9 Mono channel: Panorama control PAN to place the mono signal in the stereo sound
Stereo channel: Balance control BAL for the stereo signal
10 Control LEVEL to add the channel signal to the signal sum
11 Output MASTER OUT for the sum signal (6.3 mm jacks Left L / Right R, unbal.), e. g. to connect the amplifier for PA applications or a second mixer
12 Output BOOTH OUT (6.3 mm jacks Left L/ Right R, unbal.) to connect the amplifier of a monitor system in a separate control room
13 Output AUX SEND (6.3 mm jack, unbal.) of the effect send way, to connect the input of an effect unit

14 Output PHONES (6.3 mm jack) to connect stereo headphones (minimum impedance 8Ω)

15 LED level indicators, to indicate

• the sum signal adjusted with the control MASTER (16) when none of the buttons (20, 21) for the monitor function is pressed or
• the monitor signal selected with the corresponding button (item 20 or 21)

16 Total level control MASTER for the audio mix (sum of all signals); the sum signal is sent via the jacks MASTER OUT (11), TAPE OUT (18) and the USB port (28) and can be monitored via the outputs BOOTH OUT (12) and PHONES (14)
17 Input TAPE IN (RCA jacks Left L/Right R) to connect the output of a recorder or another reproduction unit, e. g. CD player
18 Output TAPE OUT (RCA jacks Left L/Right R) to connect the input of a recorder
19 Button TAPE[USB] TO MIX; with the button pressed, the input signal of the jacks TAPE IN (17) and of the USB port (28) is added to the sum signal
20 Button TAPE TO BOOTH / PHONES; with the button pressed, the input signal of the jacks TAPE IN (17) and of the USB port (28)^ is sent to the monitoring outputs BOOTH OUT (12) and PHONES (14) and indicated by means of the LED level indicators (15)

Note: When the button AUX SEND TO BOOTH (21) is pressed in addition, it will take priority, i.e. the effect way will be monitored and indicated.

21 Button AUX SEND TO BOOTH; with the button pressed, the signal of the effect way is sent to the monitoring outputs BOOTH OUT (12) and PHONES (14) and indicated by means of the LED level indicators (15), ahead of the output control AUX SEND MASTER (25)
22 Button PHANTOM 48V (with LED); press the button to apply a 48~V phantom power to all inputs MIC (1) Please observe the warning notes with regard to the phantom power in chapter 4.1.1.
23 Volume control BOOTH / PHONES for the monitoring outputs BOOTH OUT (12) and PHONES (14)
24 LED POWER ON
25 Level control AUX SEND MASTER for the sum signal of the effect send way at the output AUX SEND (13)

1.2 Rear panel

26 Power supply jack to connect the power supply unit provided
27 On / off switch of the mixer
28 For model MMX-24USB only: USB port (type B) to connect a computer; can be used as an output (for digital output of the sum signal) and as an input (to feed in audio data)

2 Safety Notes

The units (mixer and power supply unit) correspond to all relevant directives of the EU and are therefore marked with

WARNING

The power supply unit uses dangerous mains voltage. Leave servicing to skilled personnel. Inexpert handling or modification may re sult in electric shock.

Please observe the following items in any case:

The units are suitable for indoor use only. Protect them against dripping water and splash water, high air humidity and heat (admissible ambient temperature range: 0 - 40^ ).
- Do not place any vessel filled with liquid on the units, e. g. a drinking glass.
The heat generated inside the mixer must be dissipated by air circulation; never cover the air vents of the housing.
- Do not operate the mixer and immediately disconnect the power supply unit from the socket 1. if the mixer or the power supply unit is visibly damaged,
2. if a defect might have occurred after a unit was dropped or suffered a similar accident, 3. if malfunctions occur.

In any case the units must be repaired by skilled personnel.

For cleaning only use a dry, soft cloth; never use water or chemicals.
- No guarantee claims for the units and no liability for any resulting personal damage or material damage will be accepted if the units are used for other purposes than originally intended, if they are not correctly connected or operated, or if they are not repaired in an expert way.

If the units are to be put out of operation definitively, take them to a local recycling plant for a disposal which is not harmful to the environment.

3 Applications

This audio mixer is designed for universal PA and recording applications. It features 2 (MMX-24USB) or 4 (MMX-44) mono input channels and 4 stereo input channels to connect microphones (also phantom-powered) and audio sources with line output level (e.g. musical instruments, players). A send way allows for the use of an effect unit. In addition, connections for a recorder are available. Audio mixing can be monitored by means of headphones and / or a monitor system in a separate control room.

Model MMX-24USB additionally features a USB audio interface to connect a computer.

GB 4 Setting the Audio Mixer into Operation

Prior to connecting / disconnecting and prior to switching on, always set the output controls BOOTH / PHONES (23) and MASTER (16) to minimum.

4.1 Connecting audio sources

Since it is not possible to switch over between the inputs in the mono channels, either use the microphone input (1) or the line input (2); never use both inputs at the same time.

4.1.1 Microphones

Connect microphones to the balanced XLR jacks MIC (1). For phantom-powered microphones, press the button PHANTOM 48V (22) to activate a joint 48V phantom power for all XLR jacks. When the phantom power has been activated, the LED next to the button will light up.

Caution: When the phantom power has been activated, do not connect any microphone with unbalanced output; it may be damaged.

To prevent switching noise in the speakers and the headphones, only activate or deactivate the phantom power when the mixer has been switched off or when the corresponding output controls have been set to minimum.

4.1.2 Line audio sources

Connect audio sources with line signal level (e.g. receivers of wireless microphone systems, effect units, musical instruments, players) to the 6.3mm jacks LINE (2) of the input channels. The jacks are balanced. However, to connect units with unbalanced output, use 2-pole 6.3mm plugs.

• Connect mono units to the mono channels CH 1 and CH 2 (MMX-24USB) or CH 1 to CH 4 (MMX-44).
• Connect stereo units to the stereo channels CH 3/4 to CH 9/10 (MMX-24USB) or CH 5/6 to CH 11/12 (MMX-44). To connect a mono unit to a stereo channel, only use the jack L; the mono signal will then internally be sent to the right and the left channels.

If no recorder is connected to the RCA input TAPE IN (17) [13] chapter 4.3], this input is available for an additional stereo unit with line level (e.g. a CD player for background music during intervals).

4.2 Connecting an effect unit

Via the send way, signal parts can be decoupled from the input channels, routed via an effect unit and then, after being processed, added to the sum signal. The signal will be picked up after the control LEVEL (10) of the corresponding input channel.

1) Connect the input of the effect unit via a 6.3mm plug to the mono output AUX SEND (13).
2) Connect the output of the effect unit to the LINE input (2) of an input channel not used, refer to chapter 4.1.2.

4.3 Connecting a recorder

A stereo recorder, e. g. a tape recorder, can be connected to the RCA jacks TAPE IN (17) and TAPE OUT (18):

1) Connect the reproduction output of the recorder to the input TAPE IN.
2) Connect the recording input of the recorder to the output TAPE OUT; the output will receive the sum signal adjusted with the control MASTER (16).

The RCA jacks may also be used for other units with line signal level; it is, for example, possible to connect a reproduction unit such as a CD player or MP3 player to TAPE IN or an additional amplifier to TAPE OUT.

4.4 Connecting a monitor system and headphones

The audio mix, the input signal of the jacks TAPE IN (17) and of the USB port (28)^* or the effect way can be monitored via stereo headphones and / or a monitor system in a separate control room. Connect the headphones (minimum im-pedance 8 to the 6.3mm jack PHONES 14). Connect the amplifier of the monitor system to the stereo output BOOTH OUT (12); the two 6.3mm jacks of the output are unbalanced.

4.5 Connecting an amplifier

The stereo output MASTER OUT (11) receives the sum signal adjusted with the control MASTER (16). At this output, the amplifier for PA applications can be connected (or another unit with line input, e. g. a second mixer). The 6.3 mm jacks are unbalanced.

4.6 Power supply Switching on

Connect the power supply unit provided to the power supply jack (26) on the rear panel and to a mains socket (230V /50Hz)

To switch on the mixer, set the POWER switch (27) to ON; to switch it off, set the switch to OFF. When the mixer is switched on, the power LED (24) will light up.

Note: Always disconnect the power supply unit from the socket when the mixer is not in use for a longer period of time; even when the mixer has been switched off, the power supply unit will have a low power consumption.

4.7 Operation with a computer*

Via the USB port (28), audio files can be transferred in both directions between the mixer and the computer, even at the same time:

• When the USB port is used as an input, data fed in via the USB port can be added to the sum signal and monitored via headphones/monitor system in a control room.
• When the USB port is used as an output, the USB port provides the sum signal adjusted with the control MASTER (16).

To operate the mixer with a computer, either use the audio software supplied with the operating system or audio software installed additionally.

Various audio software programs for recording and reproduction are available on the Internet free of charge.

1) Start the computer and connect the USB port of the mixer to a USB connection on the computer.
2) The computer will recognize the switched-on mixer as a USB audio device for audio input and audio output. The required drivers (default drivers of the operating system) are available on the computer.

Note: If not all drivers required are available on the computer, install them, e.g. by means of the original CD of the operating system. If necessary, restart the computer after installing the drivers.

3) Call up the audio program used, make the settings required for audio reproduction via the mixer or audio recording from the mixer (125 manual of the program). The mixer can then be operated as described in chapter 5.

If no audio recording or audio reproduction is possible, check the system settings of the computer to find out if the USB interface has been selected for audio input or audio output.

Hint: If the mixer is connected to both a computer and to units earthed via their mains cable (e.g. amplifiers), hum interference may occur due to ground loops. To eliminate this interference, use a ground isolator (e.g. FGA-102 or FGA-202 from "img Stage Line") to connect the mixer to the corresponding unit.

5 Operation

CAUTION

Never adjust the audio system and the headphones to a very high volume. Permanent high volumes may damage your hearing! Your ear will get accustomed to high volumes which do not seem to be that high any more after some time. Therefore, do not further increase a high volume after getting used to it.

5.1 Basic adjustments of the input channels

The following steps for level matching and sound correction merely serve as an aid; other procedures are possible.

1) In all input channels, turn back the controls LEVEL (10) to the left stop.
In the mono input channels, set all controls GAIN (3), all controls EQ (4) and all controls PAN (9) to mid-position and release all buttons (5).
In the stereo input channels, release all buttons +4 / - 10 (6) and set all controls BAL (9) to mid-position.
2) Turn back the control AUX SEND MASTER (25) to the left stop.
3) Release the buttons TAPE/[USB*] TO MIX (19),TAPE TO BOOTH / PHONES (20) and AUX SEND TO BOOTH (21).
4) Set the control MASTER (24) to "0 dB".

5) Feed an audio signal to the corresponding input channel (e.g. sing into a microphone, play a musical instrument).
6) To adjust a mono channel, set the control LEVEL (10) to mid-position. Adjust the control GAIN (3) so that the LED level indicators (15) light up at 0 dB. Use the three EQ controls (4) to adjust the sound. If required, press the button (5) to suppress low-frequency interference (e.g. impact noise, hum). Then, if necessary, use the control GAIN to correct the level adjustment. The LED PEAK (8) should briefly flash for signal peaks only. If it lights permanently, turn back the control GAIN and / or the equalizer controls accordingly.

To adjust a stereo channel,

turn up the control LEVEL (10) so that the LED level indicators (15) light up at 0 dB. If you have to turn up the control considerably, press the button +4 / - 10 6) to boost the level (12 dB) for the channel. If you have to turn back the control considerably and the LED PEAK (8) of the channel lights permanently, attenuate the output level of the audio source.
7) After adjusting a channel, turn back its control LEVEL to the left stop, and then adjust the next channel.

5.2 Mixing audio sources

1) Slide up the control MASTER (16) so that the mixing ratio of the audio sources can be adjusted in an optimum way.
2) When all level matching adjustments and all sound adjustments have been made (10), use the controls LEVEL to mix the signals of the input channels in the volume ratio desired. Always turn the controls LEVEL of the channels not used back to the left stop.
3) For the mono channels, use the panorama controls PAN (9) to place the mono signals in the stereo sound. For the stereo channels, use the controls BAL (9) to adjust the balance of the stereo signals.
4) When an effect unit has been connected, please refer to chapter 5.2.1.
5) To add the input signal of the jacks TAPE IN (17) and of the USB port (28)^* to the signal sum, press the button TAPE/USB*TO MIX 19. Note: If, during recording via the jacks TAPE OUT or the USB port', the recording signal is sent as an input signal to the jacks TAPE IN or to the USB port', make sure that the button TAPE/USB*TO MIX is not pressed; otherwise, there will be feedback.
6) Use the control MASTER (16) to adjust the definitive volume of the sum signal; check the LED level indicators (15) while adjusting the volume. Make sure that none of the two buttons (20, 21) for the monitor function is pressed; otherwise, the LED level indicators will not indicate the level of the sum signal. In case of overload, the red LEDs CLIP of the level indicators will light up.

5.2.1 Adjusting the effect send way

Connect the effect unit to the output AUX SEND (13) and to the LINE input (2) of an input channel not used.

1) To make sure that the subsequent effect adjustments are audible, first set the following controls approximately to mid-position:

-AUX SEND MASTER (25)

• the control LEVEL (10) of the channel to which the effect unit has been connected

2) Use the controls AUX SEND (7) to add the signals of the input channels to the effect way. The signal will be picked up after the control LEVEL (10), i.e. the effect part of a channel is always proportional to the channel level adjusted.
Note: Turn back the control AUX SEND of the channel to which the effect unit has been connected to the left stop; otherwise, there will be feedback.
3) Use the control AUX SEND MASTER (25) to adjust the level for the output signal of the effect way (sum of all signals added to the effect way) so that the effect unit will not be overloaded.
4) Use the control LEVEL (10) of the channel to which the effect unit has been connected to add the effect signal to the sum signal.

5.3 Monitoring via headphones and monitor system

The two assign buttons (20, 21) for the monitor function define which signal will be monitored via the outputs BOOTH OUT (12) and PHONES (14) and indicated by the LED level indicators (15):

If none of the buttons is pressed, the sum signal adjusted with the control MASTER (16) will be monitored and indicated.
- If only the button TAPE TO BOOTH / PHONES (20) is pressed, the input signal of the jacks TAPE IN (17) and of the USB port (28)* will be monitored and indicated (e.g. to check a recording).
- If the button AUX SEND TO BOOTH (21) is pressed, the signal of the effect way will be monitored and indicated, ahead of the output control AUX SEND MASTER (25). In this case, the position of the button TAPE TO BOOTH/PHONESisirrelevant.

Use the control BOOTH / PHONES (23) to adjust the monitoring volume.

6 Specifications

Input sensitivity

Mic: 0.5 mV

Line (mono channel): .1 mV

Line (stereo channel): 10 mV

Tape In: 100 mV

Output level

Master Out/Tape Out: 650mV (at indication 0 dB)

Booth Out: 2V (at indication 0 dB)

Aux Send: 9.5 V max.

Headphone impedance: ≥ 8

USB interface*: USB 2.0 (Full Speed)

Frequency range: 20 - 20 000 Hz

THD: < 0.05 %

S/N ratio: >74 dB (A weighted)

Crosstalk: -63 dB

Equalizer controls

LOW: ±15 dB/80 Hz

MID: ±15 dB/2.5 kHz

HIGH: .15dB/12kHz

Low Cut filter: 75 Hz

Phantom power: . . . . . +48 V

Power supply: 18 V~ via power supply unit provided, connected to 230 V~/50 Hz

Ambient temperature: .. 0-40°C

Dimensions (W× H× D)

MMX-24USB: 220 × 65 × 260 mm

MMX-44: 280 × 50 × 260 mm

Weight

MMX-24USB: 2.1 kg

MMX-44: 2.2 kg

Suitable operating systems for data transfer via USB interface*:

Windows 2000, Windows XP or subsequent Windows versions

Mac OS 9.0.4 or later, Mac OS X

Windows is a registered trademark of Microsoft Corporation in the USA and other countries.

Mac OS is a registered trademark of Apple Computer, Inc. in the USA and other countries.

Subject to technical modification.

Line (canal mono): .1 mV

Line (canal stereo) : . . 10 mV

Tape In: 100 mV

Niveau de sortie

Master Out / Tape Out : 650 mV

{pour affichage 0 dB}

Booth Out: 2 V

{pour affichage 0 dB}

Aux Send: 9,5 V max.

Impedance casque: ... ≥ 8Ω

Interface USB* : . .USB 2.0 (Full Speed)

Bande passante: 20-20 000 Hz

Master Out/Tape Out:650mV

MasterOut/TapeOut:650mV

(bij weergave 0 dB)

Booth Out: 2 V

(bj weergave 0 dB)

Aux Send: max. 9,5 V

Hoofdtelefoon

impedantie: 8

USB-interface*: USB 2.0 (Full Speed)

Frequentiebereik: 20-20 000 Hz

THD: <0,05%

Signaal/

Low Cut-filter: 75 Hz

Lasclerosis Lasclerosis is a condition of the hands or legs that can cause pain, swelling, and tenderness. It is also called myositis ossificans (MOA). It is characterized by the loss of muscle strength and endurance in the hands and legs. The MOA is a very common symptom of RA. It is usually present in the hands and legs. It is also possible to develop it in the legs.

4.4 Conectar un sistema monitory auriculares

Line (canal mono): .1 mV

Line (canal estereo): .10 mV

Tape In: 100 mV

Nivel de salute

Master Out / Tape Out: . . 650 mV

Interfaz USB*: USB 2.0 (Full Speed)

Banda pasante: 20 - 20 000 Hz

THD: <0.05%

Master Out/Tape Out: 650mV