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Alesis MULTIMIX 12R, Reference Manual

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Connections

                                                                                                                                                                                                                        

                                                                                                                                                

Studio 12R Reference manual

19

recorder into each channel path of the mixer.  This will allow
playback monitoring of the recorder.  See the Applications chapter
for more information.

For more information on using the AUX and INSERT systems, see the
“Operating Instructions” chapter of this manual.

Summary of Contents for MULTIMIX 12R

Page 1: ...ALESIS Studio 12R Reference Manual...

Page 2: ...tions 9 Inputs 9 Cable common sense 9 Microphone Inputs 10 Phantom power 11 Line level devices synthesizers CD players video 12 TAPE IN jacks 14 Phonograph turntables 15 Do not connect any of the foll...

Page 3: ...meter 34 Avoiding noise 35 System noise ground loops hum induced noise 35 Applications 39 Multitrack recording 39 Tracking Overdubbing 39 Mixdown 40 Using the HIGH and LOW EQ controls 41 Monitoring A...

Page 4: ...near water 6 Clean only with a damp cloth Do not spray any liquid cleaner onto the faceplate as this may damage the front panel controls or cause a dangerous condition 7 Install in accordance with th...

Page 5: ...ng is required when the apparatus has been damaged in any way such as when the power supply cord or plug is damaged liquid has been spilled or objects have fallen into the apparatus the apparatus has...

Page 6: ...ted to operate the manual contains information that will help you get the highest level of performance from it We ve included creative alternative techniques that aren t obvious at first glance To fin...

Page 7: ...an equipment grounding conductor and a grounding plug The plug must be plugged into an appropriate outlet that is properly installed and grounded in accordance with all local rules and ordinances DAN...

Page 8: ...ur AC outlet is longer or shorter than the supplied cable you may substitute an approved standard NEMA to CEE power cable of the correct length available from most electronics stores Grounding CONNECT...

Page 9: ...Any angle of orientation is acceptable Note that as with most audio equipment if it is mounted into metal rack rails the chassis ground of all units in the rack will be connected together by the rail...

Page 10: ...ables with a stranded not solid internal conductor and a low resistance shield Although quality cables cost more they do make a difference Route cables in your system correctly by observing the follow...

Page 11: ...ket female The MIC Input is designed to accept a wide range of balanced or unbalanced low impedance input signals with up to 60 dB of amplification available which is 10 to 20 dB more than many other...

Page 12: ...r microphone cables have no short circuits or intermittent connections to avoid damage to the system Avoid connecting or disconnecting any microphones while PHANTOM POWER is turned on Make all connect...

Page 13: ...Studio 12R s LINE IN jacks with the TRIM level set at approximately the 1 o clock position Plug stereo sources such as synthesizers CD players and drum machine main outputs into the STEREO LINE chann...

Page 14: ...hown below If the proper connector cable or adapter is not available 4 dBu line level sources may be connected to the MIC jacks ONLY IF PHANTOM POWER WILL NOT BE USED Connecting a line level output to...

Page 15: ...it would cause feedback when you press record By placing the PHONES MONITOR switch in the TAPE position you will hear the mixer s output after it has been passed through the mixdown deck so you can m...

Page 16: ...er or an electronics specialty store 1 Plug the outputs of the phonograph pickup into the RIAA equalized phono preamp 2 Plug the outputs of the preamp into the LINE IN 9 10 or 11 12 inputs of the Stud...

Page 17: ...f the effect to see which jack is the mono jack In most cases you won t need to connect anything to the other input jack of the device but you will still get a stereo effect output 2 Connect the left...

Page 18: ...der send and normally used for stage monitoring or a separate headphone mix while recording it may also be used as an effects send so you can add different effects to different channels Just remember...

Page 19: ...t the mono plug from the ring connector to the output of the processor If you re not sure which mono plug is from the tip and which is from the ring check to see if the cable is labeled If not simply...

Page 20: ...r into each channel path of the mixer This will allow playback monitoring of the recorder See the Applications chapter for more information For more information on using the AUX and INSERT systems see...

Page 21: ...nectors To a mono system If your PA system or amplifier isn t stereo connect either the left or right MAIN OUT jacks to the input of the system Make sure that all PAN controls are in the center or tur...

Page 22: ...he MAIN OUT 10 dBV outputs to the line inputs of the external mixer If the connection is made properly the Studio 12R will not distort the input of the other mixer You may need to adjust the input tri...

Page 23: ...The TRIM control is the only level control for the ADAT inputs the channel faders EQ and aux sends of the Studio 12R are used for monitoring and will not affect multitrack recording levels This metho...

Page 24: ...s 2 8 of the ADAT in the same way 1 2 3 4 5 6 7 8 OUTPUT INPUT OUTPUT INPUT LOCATE PLAY LRC REMOTE PUNCH IN OUT DIGITAL SYNC OUT IN OUT IN Using two Studio 12Rs for more flexibility The in line method...

Page 25: ...AT but on the right of the mixer so the wires must cross over 3 To record more than two tracks at a time plug a mono cable from the INSERT jack of any channels of the mixer to the input of any track B...

Page 26: ...evel control on the front panel affects both the headphone jack on the front panel and the MONITOR OUT balanced jacks on the back panel Monitor Out The MONITOR OUT jacks give you a signal that will be...

Page 27: ...Connections Studio 12R Reference manual 26...

Page 28: ...zeroed out positions as follows before proceeding 1 Make all connections to the Studio 12R as described in the previous chapter 2 Bring all channel faders and the MASTER fader down to minimum 3 Set a...

Page 29: ...ll light when the signal level rises to within 6 dB of clipping In situations where the maximum signal to noise ratio is required such as digital recording use the PEAK LED as a guide for setting the...

Page 30: ...et the TRIM to minimum 2 Set the CHANNEL FADER to 0 about 2 3 up Set all other channel faders to minimum off 3 Set the MASTER fader to 0 dB all the way up 4 Observe the Studio 12R s LED Meter Adjust t...

Page 31: ...iscourages inexperienced operators from using the mixer incorrectly The channel faders unity gain point is at the traditional 3 4 point with 10 dB of gain at the full up position Trim gain ranges The...

Page 32: ...It s better to run the mixer at its normal level and turn down the amplifier s controls for the desired level By turning the amplifier s own volume controls down you turn down the residual noise of ev...

Page 33: ...cting to the channel LINE IN or STEREO LINE IN jacks Connecting to channel inputs gives you the added bonus of panning and EQ on the effects and the ability to send a wet or effected mix to AUX 1 for...

Page 34: ...LED turn red on peaks then reduce it slightly until the red doesn t flash The ideal input level for optimum noise performance is just below clipping But if other instruments will be added to the mix...

Page 35: ...r you hear in the headphone output the master output up position or the 2 track tape input down position is what the meter is reading Output distortion The Studio 12R has plenty of headroom but eventu...

Page 36: ...ate ground loops and stray radio frequency interference such as installing a separate power source just for the sound system most problems are easier to solve Here are some basic techniques that you s...

Page 37: ...the Studio 12R is grounded through its AC cable Signal ground is connected to chassis ground which in turn may be grounded again by the rack rails But since almost all of the inputs and outputs of th...

Page 38: ...Operating Instructions Studio 12R Reference Manual 37 unbalanced sources or effects plugged into the mixer may exhibit a hum when the amp s ground is carried back to the mixer...

Page 39: ...Operating Instructions Studio 12R Reference Manual 38...

Page 40: ...signal source microphone or line input active slowly increase the TRIM level of each input while watching the ADAT meter until the top red segment comes on Then turn down the trim level so that the r...

Page 41: ...e inputs of your control room monitor amplifier 4 Press the PHONES MONITOR switch down so it is in the TAPE position 5 Put the mixdown deck into record pause mode play the ADAT and adjust the mix and...

Page 42: ...ency of 80 Hz This means that frequencies below 80 Hz will be boosted or cut by the same amount and frequency response will gradually rise or fall from 80 Hz to about 1 kHz The frequency response rang...

Page 43: ...nt to check that mix using the headphones If you ve connected the PA or recorder to the MAIN OUTPUTS and are not using the TAPE IN jacks use Y cords to connect the AUX 1 SEND to the TAPE IN jack s at...

Page 44: ...MIC jacks Sound is excessively noisy faders must be raised to full to hear Input level is too low Turn up the TRIM control Setthesource s toa higher level Sound from effect is noisy AUX 2 send level i...

Page 45: ...io cables No meter although audio is heard through main outputs Monitor switch is set to TAPE Setswitch to MSTR Crackling sounds Dirty or corroding connections on back of mixer Unplugandreplug connect...

Page 46: ...should problems occur DO NOT attempt to service the unit yourself Service on this product should be performed only by qualified technicians NO USER SERVICEABLE PARTS INSIDE Obtaining Repair Service B...

Page 47: ...h to find the service center nearest you on our web site in the customer service section at http www alesis com Field repairs are not normally authorized during the warranty period and repair attempts...

Page 48: ...requency Response 10 Hz 65 kHz 0 1 dB any input to any output at nominal operating levels 3dB Point 125 kHz Connectors MIC IN jacks Female XLR Pin 1 ground Pin 2 Pin 3 LINE IN jacks Female 1 4 3 condu...

Page 49: ...pping MAIN OUT LEVEL 1 4 phone jacks when meter is at 0 VU 4 dBu 1 24 volts into a balanced load 2 dBu into an unbalanced load MAIN OUT LEVEL phono jacks 10 dBV 316 volts unbalanced MAXIMUM OUTPUT LEV...

Page 50: ...annel faders at minimum 88 dBu 12 inputs faders and trims at unity gain inputs terminated 150 85 dBu unbalanced 22 dB max unbalanced out 107 dB dynamic range Distortion THD N Measured with a 0 dBu sig...

Page 51: ...Specifications Studio 12R Reference Manual 50 DIMENSIONAL DRAWING...

Page 52: ...URN PHANTOM POWER TRIM TRIM INSERT LOW LOW HIGH HIGH L MONO R L MONO R AUX 1 AUX 1 AUX 2 RIGHT LEFT RIGHT LEFT TAPE IN 10 dBV L R L R 2 TRACK PHONES MONITOR LEVEL AUX 1 AUX SENDS AUX 2 L MAIN OUT 10dB...

Page 53: ...Specifications Studio 12R Reference Manual 52 Level diagram...

Page 54: ...12 LOW 41 MAIN OUT 10 dBV 21 MAIN OUT BALANCED 20 Master 30 maximum level 13 48 meter 34 MIC IN 10 13 Microphone 10 microphone preamps 22 MONITOR OUT 14 20 25 mono 20 MSTR TAPE switch 14 21 affects m...

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