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9.2. Stereo 

Each stereo channel features a mono microphone preamp as well as two 

stereo line inputs. These three sources can be used independently or 

mixed together into channel, so providing a unique flexibility. For example, 

you could configure a conventional mono microphone channel with the two 

‘short return’ stereos routed direct to LR for effects. Alternatively you could 

patch the mic stage as an independent preamp for an ambience 

microphone feeding a recording, or for a system calibrate microphone, 

while ST line inputs mix two external stereo effects processor return or 

sound effect players via a single channel. This can be useful in saving 

chennel, letting you mix many inputs in a small space. Of coursek, one 

stereo could feed the chennl, the other route direct to LR. Two stero 

channels could be linked so that the mic premps cross patch to provide 

one stereo mic and one stereo line channel, with two ‘short returns’ also 

available. 

9.2.1.  Mic input 

 

Similar to the mono channel microphone preamp without the line (pad) and 

polarity switches. Gain and 48V phantom power switching are included. A 

rear panel mic out breakpoint socket is provided so that the mic stage can 

be used independently. Plugging a jack into the mic out socket breaks its 

signal path to the stereo channel. 

9.2.2.  Dual stereo line inputs 

 

Each stereo channel has two stereo inputs which can be used separately, 

mixed together or split so that one feeds the channel, the other routes 

direct to LR, ST1 and 2 feed channel 15 (23), ST3 and 4 feed channel 16 

(24). The L input signal is normally through the R input socket so that a 

mono source may be plugged in to feed both left and right sides of the 

stereo channel. Each input has its own level control to adjust from fully off 

to +16dB gain. Centre position is unity (0dB) gain.  

9.2.3.  Routing mode switch 

 

Recessed to prevent accidental operation. In normal up position the ST 

signal mixes into the associated stereo channel. When pressed the signal 

is routed direct to the LR mix instead of the channel. 

Summary of Contents for Live M416

Page 1: ...Manual Mixer Live M416...

Page 2: ...2 45...

Page 3: ...1 General overview 12 7 2 Required connection cables 14 7 3 Dealing with ground loops buzz and interference 14 7 4 Balanced connections 15 8 Connections at the mixing console 15 8 1 MONO CHANNEL MIC L...

Page 4: ...21 9 2 Stereo 22 9 2 1 Mic input 22 9 2 2 Dual stereo line inputs 22 9 2 3 Routing mode switch 22 9 2 4 EQ 23 9 2 5 AUX Sends 23 9 2 6 BAL 23 9 2 7 Mute 23 9 2 8 PFL 23 9 2 9 Meter 23 9 2 10 Routing 2...

Page 5: ...cations and operating tips 30 11 1 Gain structure 30 11 2 Using the Oscillator Noise Generator 31 11 3 Mixing with faders or gain controls 32 11 4 Using PFL AFL 32 11 5 Decibel 33 11 6 Using Inserts 3...

Page 6: ...h ambience 39 11 13 10 Using the matrix to create a recording 39 11 14 Recording with the mixing console 39 11 15 Pre post fade Aux settings 39 11 16 Aux Fed Subs 40 11 17 Creating a separate C mix 40...

Page 7: ...Safety instructions Read the safety instructions and also this manual carefully Keep the manual Observe all red flags Observe the manual To prevent fire or electric shocks protect the device against...

Page 8: ...systems which are in the near of the ear headphones or IEMs also 2 2 Important mains plug wiring instructions The console is supplied with a molded mains plug fitted to the AC mains power lead Follow...

Page 9: ...arting Included is information on installing connecting and operating the console panel drawings system block diagram and technical specification For further information on the basic principles of aud...

Page 10: ...he highest reliability and finest sonic performance 16 channels LR Main Mix Multi Mode M output 4 Group Sends 6 AUX Sends 7x4 Matrix Proper dual functionality for FOH Monitor mixing Recording capable...

Page 11: ...udible hum buzz or other performance degradation do not place equipment that radiates strong electromagnetic fields such as mains power supplies amplifiers and computers next to or directly underneath...

Page 12: ...the console and any other connected equipment on or off Note Turn amplifiers and powered speakers on last and off first To turn the console on press the ON OFF switch next to IEC mains input socket To...

Page 13: ...13 45...

Page 14: ...bles are kept shorter than 10 meters or so Refer to the wiring diagrams in chapter 7 7 3 Dealing with ground loops buzz and interference For optimum performance all audio signals should be referenced...

Page 15: ...k Both inputs are balanced but can be wired to work with unbalanced signals when required The MIC XLR can be switched to provide 48V phantom power for condensers Note Do not connect unbalanced sources...

Page 16: ...uipment such as compressors outboard EQ delay units and so on The wiring of a suitable cable is shown in the diagram 8 4 DIRECT OUTPUT Each mono channel direct output is available on an impedance bala...

Page 17: ...0 62V line level The Aux senda are typically used to feed monitors effects devices such as reverb and delay 8 8 MATRIX OUT 1 4 Each matrix output is available on an impedance balanced TRS jack operat...

Page 18: ...of mode switch configuration The 2 track return can be used for monitoring a mono or stereo recording o as a simple input for playback of walk in and background music The L input normally through the...

Page 19: ...Mic input The XLR is normal through the TRS socket With nothing plugged into the line input the switch therefore becomes a Pad for the Mic XLR It attenuates the input signal by 20dB for connection to...

Page 20: ...control The adjust from fully off to 6dB boost Unity gain 0dB is marked at 3 o clock position Aux 1 4 5 6 are switched pre post Pre fade aux sends are not affected by the channel fader movements These...

Page 21: ...A 4 LED channel meter displays the pre fader signal level SIG lights when a signal of 12dBu 0 2V is detected 0 lights when the nominal 0dBu level is reached and 6 at 6dBu 1 5V PK lights when the chan...

Page 22: ...th two short returns also available 9 2 1 Mic input Similar to the mono channel microphone preamp without the line pad and polarity switches Gain and 48V phantom power switching are included A rear pa...

Page 23: ...9 2 7 Mute When pressed all the channel pre and post fade signals are turned off except the mic out and any stereo routed direct to LR 9 2 8 PFL Press PFL to display summed L R pre fade channel signal...

Page 24: ...f the group and aux masters the heart of the dual functionality pioneered by us They are recessed to prevent accidential operation Use a pen or pointed object to set their position In the up position...

Page 25: ...mode REV pressed 10 1 6 MUTE When pressed the group aux signal is turned off This affects the feed to the output XLR LR and matrix The red indicator lights when the channel is muted 10 1 7 GROUP AFL...

Page 26: ...h of genius to the versatility of the mixing console The source is selected using two mode switches above the R fader These are recessed to prevent accidental operation Use a pen or pointed object to...

Page 27: ...AUX6 send to 3 o clock unity position and turn off its assignment switch to LR 10 3 7x4 Matrix The matrix adds to the powerful multi tasking capability of the mixing console It provides a set of 4 ad...

Page 28: ...rovides 6dB boost above the normal 0 setting 10 3 5 Mute When pressed the matrix output is turned off The red indicator lights when matrix is muted Mute does not affect the matrix AFL monitoring 10 3...

Page 29: ...me Continued exposure to high volume sound can cause frequency selective or wide range hearing loss 10 4 2 Talkback Individually assignable talkback is available to all the main outputs Plug in suitab...

Page 30: ...faced in modern day mixing 11 1 Gain structure The term used to describe the gain level matching of the signal through the audio system chain Each item in the equipment chain has its own optimum nomi...

Page 31: ...ith usual peaks around 6 Reduce the gain if the red 16 or PK indicator lights Use the equipment meters to set each item within the system path to operate at its nominal level We advise that the proces...

Page 32: ...the OSC NOISE trim turned fully off so that you can bring up gradually without the risk of overloading the destination 11 3 Mixing with faders or gain controls There is a technique used by some opera...

Page 33: ...are two signal voltages in and out ignoring the impedances The dB is used to express the relationship between two levels chosen because of the logarithmic way our ears respond to sound The dB relates...

Page 34: ...hing normalling contact in the socket As soon as a jack is plugged into the socket the contact is opened and the signal path broken so that the external device can be patched in series with the signal...

Page 35: ...ll its controls to a sensible starting condition Set all the GAIN EQ and PAN controls mid FADER AUX and MATRIX controls off TALKBACK and OSC NOISE levels off and all switches up Make sure that the OSC...

Page 36: ...pre post switches and link options are important In Monitor mode it must be possible to switch all auxes post for channel fader mastering For Monitors from FOH the pre insert pre EQ or post EQ option...

Page 37: ...put to produce a mono mix feeding a recorder video camera or so on Raise the L and R rotaries to the 2 o clock position to sum them together You can use the built in 1 kHz tone generator to feed a lin...

Page 38: ...ents in the fills and to use an EQ to cut the extreme LF and HF frequencies 11 13 6 Hearing assist It is a growing requirement that venues provide a hard of hearing inductive loop IR or wireless broad...

Page 39: ...rong voices acoustic guitar and flute but the drums bass and electric guitar may be low This is because you did not need much of these backline instruments in the PA mix However if you use the matrix...

Page 40: ...end to create mono or less sub as this may upset the natural speaker balance or cause problems for listeners in different parts of the room One problem with using the aux in this way is that it become...

Page 41: ...6 mix to M mode switch pressed 11 18 Other M output applications Apart from the aux fed subs and C mix described above other examples include L R sum mono fill additional mono zone feed mono recording...

Page 42: ...Channel to mix out 0 003 Crosstalk Fader shutoff 90dB Mute shutoff 90dB Inter channel 90dB Noise rms 22Hz to 22kHz Mic EIN 128dB Residual output noise 95dB 100dB S N LR mix noise 16 routed 85dB 90dB S...

Page 43: ...ack send TRS impedance balanced 75 2dBu 0 62V Inserts Channel TRS Tip Send Ring Return 0dBu 0 77V Output TRS Tip Send Ring Return 2dBu 0 62V L R M outputs XLR balanced Pin 2 hot 75 4dBu 1 23V 26dBu 15...

Page 44: ...44 45 13 Circuit diagram...

Page 45: ...45 45 Importer B K Braun GmbH Industriestra e 2 D 76307 Karlsbad www bkbraun com info bkbraun com...

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