Reference Manual
Page 11
Introduction TABLE OF CONTENTS Table of Contents 1 Introduction 3 The Alesis Multimix 12R Microphone Preamplifier/Mixer 3 Using this manual 3 Grounding Instructions 4 Installation 5 Unpacking ...5 AC power...5 Grounding 5 Use clean power 6 Power switch 6 Mounting ...6 Connections 7 Inputs ...7 Cable common sense 7 Microphone Inputs 8 Phantom power 9 Line-level devices (...
Introduction TABLE OF CONTENTS Table of Contents 1 Introduction 3 The Alesis Multimix 12R Microphone Preamplifier/Mixer 3 Using this manual 3 Grounding Instructions 4 Installation 5 Unpacking ...5 AC power...5 Grounding 5 Use clean power 6 Power switch 6 Mounting ...6 Connections 7 Inputs ...7 Cable common sense 7 Microphone Inputs 8 Phantom power 9 Line-level devices (...
Reference Manual
Page 13
... signal to and from sound reinforcement to multitrack recording. This symbol indicates that this manual just as an accessory or submixer to a larger console. Multimix 12R Reference Manual 3 Introduction INTRODUCTION The Alesis Multimix 12R Microphone Preamplifier/Mixer The Alesis Multimix 12R is not complicated to operate, the manual contains information that will appear in the left ) will help you need quickly...
... signal to and from sound reinforcement to multitrack recording. This symbol indicates that this manual just as an accessory or submixer to a larger console. Multimix 12R Reference Manual 3 Introduction INTRODUCTION The Alesis Multimix 12R Microphone Preamplifier/Mixer The Alesis Multimix 12R is not complicated to operate, the manual contains information that will appear in the left ) will help you need quickly...
Reference Manual
Page 15
... SECTION OF THIS MANUAL TO ENSURE SAFE OPERATION OF THIS UNIT. Grounding CONNECT THE MULTIMIX 12R TO A PROPERLY GROUNDED OUTLET ONLY. If you cannot get rid of the correct length, available from most electronics stores. Connect the Multimix 12R to -CEE power... ADAPTERS WHICH REMOVE THE SAFETY GROUND PROTECTION OR CUT OFF THE GROUNDING PRONG ON THE POWER CORD. The Multimix 12R features balanced inputs and outputs, so if it is essential for user safety and low noise. If the... NEMA-to the specified power using the AC cable supplied with this manual 3. Multimix 12R Reference Manual 5
... SECTION OF THIS MANUAL TO ENSURE SAFE OPERATION OF THIS UNIT. Grounding CONNECT THE MULTIMIX 12R TO A PROPERLY GROUNDED OUTLET ONLY. If you cannot get rid of the correct length, available from most electronics stores. Connect the Multimix 12R to -CEE power... ADAPTERS WHICH REMOVE THE SAFETY GROUND PROTECTION OR CUT OFF THE GROUNDING PRONG ON THE POWER CORD. The Multimix 12R features balanced inputs and outputs, so if it is essential for user safety and low noise. If the... NEMA-to the specified power using the AC cable supplied with this manual 3. Multimix 12R Reference Manual 5
Reference Manual
Page 17
Use good-quality cable: 99% of all connections to the Multimix 12R with isopropyl alcohol or other equipment. Multimix 12R Reference Manual 7 If the connectors are turned all the way down to avoid sudden pops and clicks which may not cause immediate damage, but it make sharp, ...
Use good-quality cable: 99% of all connections to the Multimix 12R with isopropyl alcohol or other equipment. Multimix 12R Reference Manual 7 If the connectors are turned all the way down to avoid sudden pops and clicks which may not cause immediate damage, but it make sharp, ...
Reference Manual
Page 19
...Avoid connecting or disconnecting any microphones while [PHANTOM POWER] is turned on the back panel before bringing the fader and [TRIM] back up. Multimix 12R Reference Manual 9 Since the power is being used. Never connect the MIC jack to an UNBALANCED source or to a linelevel device (such as a ...tape recorder or synthesizer) when phantom power is applied equally to the Multimix 12R's internal 48 volt phantom power source. Make all the XLR MIC IN ...
...Avoid connecting or disconnecting any microphones while [PHANTOM POWER] is turned on the back panel before bringing the fader and [TRIM] back up. Multimix 12R Reference Manual 9 Since the power is being used. Never connect the MIC jack to an UNBALANCED source or to a linelevel device (such as a ...tape recorder or synthesizer) when phantom power is applied equally to the Multimix 12R's internal 48 volt phantom power source. Make all the XLR MIC IN ...
Reference Manual
Page 21
... plenty of headroom to handle these balanced inputs. The stereo channels may cause damage to a phantom-powered XLR input on the Alesis Multimix 12R may receive a +22 dBu (balanced or unbalanced) maximum input. The nominal trim setting for any damages caused by phantom power...32 dBu without clipping, a headroom advantage of 20 dB. Alesis cannot be responsible for a +4 dBu signal plugged into the mic jack. Maximum levels: The maximum level the [MIC] jack can receive with . Multimix 12R Reference Manual 11 Connections Balanced +4 dBu line level sources: Professional recording...
... plenty of headroom to handle these balanced inputs. The stereo channels may cause damage to a phantom-powered XLR input on the Alesis Multimix 12R may receive a +22 dBu (balanced or unbalanced) maximum input. The nominal trim setting for any damages caused by phantom power...32 dBu without clipping, a headroom advantage of 20 dB. Alesis cannot be responsible for a +4 dBu signal plugged into the mic jack. Maximum levels: The maximum level the [MIC] jack can receive with . Multimix 12R Reference Manual 11 Connections Balanced +4 dBu line level sources: Professional recording...
Reference Manual
Page 23
... pickup into a [LINE IN] jack). • Any unshielded cable. Do not connect any of the following to any input of the Multimix 12R! • The speaker output of the Multimix 12R. Multimix 12R Reference Manual 13 Connections Phonograph turntables If you're using a record turntable, you may not plug it will sound very thin and noisy). Plug...
... pickup into a [LINE IN] jack). • Any unshielded cable. Do not connect any of the following to any input of the Multimix 12R! • The speaker output of the Multimix 12R. Multimix 12R Reference Manual 13 Connections Phonograph turntables If you're using a record turntable, you may not plug it will sound very thin and noisy). Plug...
Reference Manual
Page 24
Connect the AUX 2 (POST) AUX SEND output of the 12R to the STEREO AUX RETURN. About stereo effect devices ✪ ...to control the effect with a large fader, send the effects to the Multimix 12R mixer. If the effect has a stereo input, check the manual of the effect to see which may connect the output of the effect ...Alesis and other input jack of the device, but you won't need to connect from only ONE Aux Send to the left (mono) input of the effect unit, but you will still connect both the left and right outputs of the effect device to the [STEREO AUX RETURN] jacks of the Multimix 12R...
Connect the AUX 2 (POST) AUX SEND output of the 12R to the STEREO AUX RETURN. About stereo effect devices ✪ ...to control the effect with a large fader, send the effects to the Multimix 12R mixer. If the effect has a stereo input, check the manual of the effect to see which may connect the output of the effect ...Alesis and other input jack of the device, but you won't need to connect from only ONE Aux Send to the left (mono) input of the effect unit, but you will still connect both the left and right outputs of the effect device to the [STEREO AUX RETURN] jacks of the Multimix 12R...
Reference Manual
Page 25
...such as direct outputs to a recorder. The INSERT jacks may be used as the Alesis QuadraVerb 2) may also be connected to two different sends to take advantage of the effect...effects only, no direct signal). The purpose of the INSERT jacks on one signal at a time, with the Multimix 12R, you to insert a compressor, equalizer, or other input of the dual processing capability. Just remember that the "...device will set the effect's wet/dry balance all the way to different channels. Check the manual for your effect device for the "dry" stereo signal when the effect is used for ...
...such as direct outputs to a recorder. The INSERT jacks may be used as the Alesis QuadraVerb 2) may also be connected to two different sends to take advantage of the effect...effects only, no direct signal). The purpose of the INSERT jacks on one signal at a time, with the Multimix 12R, you to insert a compressor, equalizer, or other input of the dual processing capability. Just remember that the "...device will set the effect's wet/dry balance all the way to different channels. Check the manual for your effect device for the "dry" stereo signal when the effect is used for ...
Reference Manual
Page 27
Or, put the recorder into INPUT mode and insert the plug all the way, connecting the input and output of each track of the recorder into each channel path of the recorder. This will allow playback monitoring of the mixer. See the Applications chapter for more information on using the AUX and INSERT systems, see the "Operating Instructions" chapter of this manual. For more information. Connections providing a direct output. Multimix 12R Reference Manual 17
Or, put the recorder into INPUT mode and insert the plug all the way, connecting the input and output of each track of the recorder into each channel path of the recorder. This will allow playback monitoring of the mixer. See the Applications chapter for more information on using the AUX and INSERT systems, see the "Operating Instructions" chapter of this manual. For more information. Connections providing a direct output. Multimix 12R Reference Manual 17
Reference Manual
Page 29
.... Alternatively, you connect the [MONITOR OUT] jacks to the recorder, the level will not distort the input of the Multimix 12R to see what level those . Multimix 12R Reference Manual 19 Connections To another mixer The main or monitor outputs of the other mixer. If the connection is a professional type ... -10 dBV] outputs to a larger mixing console. Consult the manual for the other mixer's line inputs. • If the inputs are designed for more information. You may need to adjust the input trim of the Multimix 12R may simply connect the MAIN OUT or MONITOR OUT jacks of the...
.... Alternatively, you connect the [MONITOR OUT] jacks to the recorder, the level will not distort the input of the Multimix 12R to see what level those . Multimix 12R Reference Manual 19 Connections To another mixer The main or monitor outputs of the other mixer. If the connection is a professional type ... -10 dBV] outputs to a larger mixing console. Consult the manual for the other mixer's line inputs. • If the inputs are designed for more information. You may need to adjust the input trim of the Multimix 12R may simply connect the MAIN OUT or MONITOR OUT jacks of the...
Reference Manual
Page 30
...a minimum of circuitry between the original source and the recorder. the channel faders, EQ, and aux sends of the Multimix 12R are designed to 1/4" mono cables. See the ADAT manual for more . There are two ways to use 1/4" TRS to rival or exceed the sound quality of external microphone ...preamps costing many audiophiles and engineers, since there is patched into the [INSERT] jacks, or using two Multimix 12Rs, one end, and split out ...
...a minimum of circuitry between the original source and the recorder. the channel faders, EQ, and aux sends of the Multimix 12R are designed to 1/4" mono cables. See the ADAT manual for more . There are two ways to use 1/4" TRS to rival or exceed the sound quality of external microphone ...preamps costing many audiophiles and engineers, since there is patched into the [INSERT] jacks, or using two Multimix 12Rs, one end, and split out ...
Reference Manual
Page 31
... a smaller space than expensive dedicated recording consoles. One 12R is the "source" mixer which feeds the ADAT's inputs, and the other is the "monitor/mixdown" mixer which is from the tip and which receives the ADAT's outputs. 1. Multimix 12R Reference Manual 21 Plug the -10 dBV MAIN OUT jacks of ...the "source" 12R to a track. If you 're not sure which mono plug is from the mixer with the faders and ...
... a smaller space than expensive dedicated recording consoles. One 12R is the "source" mixer which feeds the ADAT's inputs, and the other is the "monitor/mixdown" mixer which is from the tip and which receives the ADAT's outputs. 1. Multimix 12R Reference Manual 21 Plug the -10 dBV MAIN OUT jacks of ...the "source" 12R to a track. If you 're not sure which mono plug is from the mixer with the faders and ...
Reference Manual
Page 33
... PHONES control may be the same as the MAIN OUT, as long as the front panel [MSTR/TAPE] switch is designed for most stereo headphones. Multimix 12R Reference Manual 23 The internal headphone amplifier outputs the maximum power allowed by safety standards.
... PHONES control may be the same as the MAIN OUT, as long as the front panel [MSTR/TAPE] switch is designed for most stereo headphones. Multimix 12R Reference Manual 23 The internal headphone amplifier outputs the maximum power allowed by safety standards.
Reference Manual
Page 35
... [AUX 1], [AUX 2], STEREO AUX RETURN, [PHONES/MONITOR] controls to "12 o'clock". Bring all channel faders and the [MASTER] fader down to minimum (full counterclockwise). 4. Multimix 12R Reference Manual 25 Set all [TRIM] controls to minimum. 3. Make all connections to their "zeroed out" positions as described in the previous chapter. 2. Operating Instructions OPERATING INSTRUCTIONS...
... [AUX 1], [AUX 2], STEREO AUX RETURN, [PHONES/MONITOR] controls to "12 o'clock". Bring all channel faders and the [MASTER] fader down to minimum (full counterclockwise). 4. Multimix 12R Reference Manual 25 Set all [TRIM] controls to minimum. 3. Make all connections to their "zeroed out" positions as described in the previous chapter. 2. Operating Instructions OPERATING INSTRUCTIONS...
Reference Manual
Page 37
With the mic or line level signal flowing through the channel, set the TRIM to minimum (off). 3. Multimix 12R Reference Manual 27 Adjust the [TRIM]knob until the PEAK LED stops flashing. Set the CHANNEL FADER to 0 dB (all other channel faders to minimum. 2. Turn down ... flash, you more headroom than the peak method, while maintaining a low noise floor which will be well below the noise of signal overload. Observe the Multimix 12R's LED Meter.
With the mic or line level signal flowing through the channel, set the TRIM to minimum (off). 3. Multimix 12R Reference Manual 27 Adjust the [TRIM]knob until the PEAK LED stops flashing. Set the CHANNEL FADER to 0 dB (all other channel faders to minimum. 2. Turn down ... flash, you more headroom than the peak method, while maintaining a low noise floor which will be well below the noise of signal overload. Observe the Multimix 12R's LED Meter.
Reference Manual
Page 38
Unity gain points Unlike many other mixers, the Multimix 12R's [MASTER] fader is up position. On channels 1-8, the LINE input ranges from 10 dB attenuation to 40 dB gain, a range that should be amplified a great ... decrease in level that gain, if the TRIM controls have been set properly. (See "How to Set Aux Send and Return Levels" later in this manual for more information.) Ultimately, the fader levels are only a starting point. It also discourages inexperienced operators from using the mixer incorrectly. Operating Instructions Typical Fader...
Unity gain points Unlike many other mixers, the Multimix 12R's [MASTER] fader is up position. On channels 1-8, the LINE input ranges from 10 dB attenuation to 40 dB gain, a range that should be amplified a great ... decrease in level that gain, if the TRIM controls have been set properly. (See "How to Set Aux Send and Return Levels" later in this manual for more information.) Ultimately, the fader levels are only a starting point. It also discourages inexperienced operators from using the mixer incorrectly. Operating Instructions Typical Fader...
Reference Manual
Page 39
... large amount of EQ is a frequent cause of overload distortion problems. The PEAK LEDs monitor the signal after the EQ circuit, both . Multimix 12R Reference Manual 29 It's better to run the faders of the mixer in a quieter, more information. Operating Instructions Proper gain staging of other equipment at... elements. A "noisy mixer" is usually a quiet mixer in a system whose gain structure is possible to clip the preamp stage of the Multimix 12R well below the "0" mark) to keep the amount of everything that precedes it may become necessary to run the mixer at 3/4 or 75%...
... large amount of EQ is a frequent cause of overload distortion problems. The PEAK LEDs monitor the signal after the EQ circuit, both . Multimix 12R Reference Manual 29 It's better to run the faders of the mixer in a quieter, more information. Operating Instructions Proper gain staging of other equipment at... elements. A "noisy mixer" is usually a quiet mixer in a system whose gain structure is possible to clip the preamp stage of the Multimix 12R well below the "0" mark) to keep the amount of everything that precedes it may become necessary to run the mixer at 3/4 or 75%...
Reference Manual
Page 40
Consult the manual for monitoring. Operating Instructions AUX System: Effects Send/Receive The AUX 2 buss of the effect device). Usually, you the added bonus of panning and EQ on the mixer's individual Aux Sends and STEREO AUX RETURN and the effect device's own controls to the Multimix 12R. Connecting to channel inputs gives you... allows each channel to have any channels you fade a channel out, its own level control feeding the aux output (and eventually the input of the Multimix 12R is already at the mixer).
Consult the manual for monitoring. Operating Instructions AUX System: Effects Send/Receive The AUX 2 buss of the effect device). Usually, you the added bonus of panning and EQ on the mixer's individual Aux Sends and STEREO AUX RETURN and the effect device's own controls to the Multimix 12R. Connecting to channel inputs gives you... allows each channel to have any channels you fade a channel out, its own level control feeding the aux output (and eventually the input of the Multimix 12R is already at the mixer).
Reference Manual
Page 41
... processor or the Aux return to the mix later, or levels are unpredictable (as in the chain that will be set at the "2:00" position). 3. Multimix 12R Reference Manual 31
... processor or the Aux return to the mix later, or levels are unpredictable (as in the chain that will be set at the "2:00" position). 3. Multimix 12R Reference Manual 31