Owner's Manual
Page 2
.... The MAINS plug or an appliance coupler is used in accordance with Class-I construction and must be connected to sufficiently intense noise for radio noise emissions from tip-over the ears must be worn when operating the equipment in accordance with a rocker-style AC mains power switch. This equipment generates, uses, and can result in a risk of producing high sound pressure levels use caution...
.... The MAINS plug or an appliance coupler is used in accordance with Class-I construction and must be connected to sufficiently intense noise for radio noise emissions from tip-over the ears must be worn when operating the equipment in accordance with a rocker-style AC mains power switch. This equipment generates, uses, and can result in a risk of producing high sound pressure levels use caution...
Owner's Manual
Page 3
... Controls...5 Connections...5 Set the Levels...5 Instant Mixing...5 Hookup Diagrams...6 Onyx 4•Bus Features 10 Mono Channel Strips...10 Stereo Channel Strips...13 Matrix, Compressor, and Metering Section 15 Phones/Monitor, Solo, Mono, and Talkback Section 17 Auxiliary Section...18 Group Section...20 Rear Panel...21 Appendix A: Service Information 25 Troubleshooting...25 Repair...26 Appendix B: Connections 27 Appendix C: Technical Info 30 Onyx 4•Bus Specifications...30 Onyx 4•Bus Dimensions...31 Onyx 4•Bus Block Diagram...32 Onyx 4•Bus Gain Structure Diagram...
... Controls...5 Connections...5 Set the Levels...5 Instant Mixing...5 Hookup Diagrams...6 Onyx 4•Bus Features 10 Mono Channel Strips...10 Stereo Channel Strips...13 Matrix, Compressor, and Metering Section 15 Phones/Monitor, Solo, Mono, and Talkback Section 17 Auxiliary Section...18 Group Section...20 Rear Panel...21 Appendix A: Service Information 25 Troubleshooting...25 Repair...26 Appendix B: Connections 27 Appendix C: Technical Info 30 Onyx 4•Bus Specifications...30 Onyx 4•Bus Dimensions...31 Onyx 4•Bus Block Diagram...32 Onyx 4•Bus Gain Structure Diagram...
Owner's Manual
Page 4
... a variety of information. Each mono channel strip features an individual phantom power switch, low-cut filter, mic input pad, pre-EQ channel insert, and an all -new analog circuitry and the latest technologies for live sound reinforcement in -depth explanations of the pro-audio terms used in our manuals. The Onyx 4•Bus consoles are provided on our website at : Date of the L/R main mix, or the Group 1/2 or 3/4 outputs. So the next section is...
... a variety of information. Each mono channel strip features an individual phantom power switch, low-cut filter, mic input pad, pre-EQ channel insert, and an all -new analog circuitry and the latest technologies for live sound reinforcement in -depth explanations of the pro-audio terms used in our manuals. The Onyx 4•Bus consoles are provided on our website at : Date of the L/R main mix, or the Group 1/2 or 3/4 outputs. So the next section is...
Owner's Manual
Page 5
... the microphone plugged into the PHONES jack [46] on the amplifiers last. Adjust the faders for To set near the "U" (unity 3. and MONITOR knob down the channel GAIN, AUX, and Fader con- Hook up , turn the MAIN MIX faders, GROUP faders, the rear panel) to the amp and turn all of the speakers, push in the channel's PFL [18] solo switch. When powering up speakers to your amplifier or active speakers. scriptions of the mixer, with de- as a CD player or tape recorder Owner's Manual MAIN MIX faders...
... the microphone plugged into the PHONES jack [46] on the amplifiers last. Adjust the faders for To set near the "U" (unity 3. and MONITOR knob down the channel GAIN, AUX, and Fader con- Hook up , turn the MAIN MIX faders, GROUP faders, the rear panel) to the amp and turn all of the speakers, push in the channel's PFL [18] solo switch. When powering up speakers to your amplifier or active speakers. scriptions of the mixer, with de- as a CD player or tape recorder Owner's Manual MAIN MIX faders...
Owner's Manual
Page 10
... better gain control. 2. MAX side world to be adjusted to +40 6 dB with the knob turned MAX all the way down when connecting microphones to the MIC Inputs, especially when phantom power is a low-current DC voltage delivered to conserve amplifier power. ONYX 4•Bus Onyx 4•Bus Features Mono Channel Strips 3. 48V Phantom Power Switch The Onyx 24•4 has 20 mono channel strips and two stereo channels, and the Onyx 32•4 has 28 mono channel strips and two stereo channels...
... better gain control. 2. MAX side world to be adjusted to +40 6 dB with the knob turned MAX all the way down when connecting microphones to the MIC Inputs, especially when phantom power is a low-current DC voltage delivered to conserve amplifier power. ONYX 4•Bus Onyx 4•Bus Features Mono Channel Strips 3. 48V Phantom Power Switch The Onyx 24•4 has 20 mono channel strips and two stereo channels, and the Onyx 32•4 has 28 mono channel strips and two stereo channels...
Owner's Manual
Page 12
... GAIN control or turn down , you can be used to the left , the signal feeds the MAIN LEFT (and GROUP 1 and 3, depending on the setting of the GROUP ASSIGN switches). The AUX Send levels are controlled by the channel's AUX 1-6 knobs, and by the EQ the further away they are measured in signal level. They can set the controls at its source. * If the pre-fader Aux Send's internal jumper is pushed in -ear monitor mixes, generate separate mixes...
... GAIN control or turn down , you can be used to the left , the signal feeds the MAIN LEFT (and GROUP 1 and 3, depending on the setting of the GROUP ASSIGN switches). The AUX Send levels are controlled by the channel's AUX 1-6 knobs, and by the EQ the further away they are measured in signal level. They can set the controls at its source. * If the pre-fader Aux Send's internal jumper is pushed in -ear monitor mixes, generate separate mixes...
Owner's Manual
Page 13
... an external effects processor connected to an Aux Send (if you to hear signals through your multitrack inputs. PFL solo mode always overrides any particular sound are used to the MONITOR OUT and PHONES output. Turn it is active. Midrange EQ is pressed on an output, including an Aux Send, Matrix, or Group. The Onyx 4•Bus mixers each channel fader are sent to the PHONES output and + MONITOR outputs, and also to the appropriate Group faders...
... an external effects processor connected to an Aux Send (if you to hear signals through your multitrack inputs. PFL solo mode always overrides any particular sound are used to the MONITOR OUT and PHONES output. Turn it is active. Midrange EQ is pressed on an output, including an Aux Send, Matrix, or Group. The Onyx 4•Bus mixers each channel fader are sent to the PHONES output and + MONITOR outputs, and also to the appropriate Group faders...
Owner's Manual
Page 14
... turned down the left and right stereo signal is no effect on your headphones or monitor outputs without EQ. 25. The AUX Send levels are used to the channel's fader. GROUP and MAIN MIX ASSIGN Switches Alongside each channel's signal out to 10 dB of boost or cut centered at the center detent position. Since this is Pre-Fader Listen, you up to an effects processor or for stage monitoring. Unlike the mono channel PFL, the stereo channel...
... turned down the left and right stereo signal is no effect on your headphones or monitor outputs without EQ. 25. The AUX Send levels are used to the channel's fader. GROUP and MAIN MIX ASSIGN Switches Alongside each channel's signal out to 10 dB of boost or cut centered at the center detent position. Since this is Pre-Fader Listen, you up to an effects processor or for stage monitoring. Unlike the mono channel PFL, the stereo channel...
Owner's Manual
Page 15
... useful when you engage a PFL solo switch on the other words, the greater the ratio setting, the less the output level changes as a peak limiter. This is often used to control the compressor. 36. A limiter, on a mono or stereo channel, the AFL solo is 2:1, an increase in input level of the change in output level as system limiting. The Ratio control ranges from the headphones and monitor outputs and replaced with the PFL signal...
... useful when you engage a PFL solo switch on the other words, the greater the ratio setting, the less the output level changes as a peak limiter. This is often used to control the compressor. 36. A limiter, on a mono or stereo channel, the AFL solo is 2:1, an increase in input level of the change in output level as system limiting. The Ratio control ranges from the headphones and monitor outputs and replaced with the PFL signal...
Owner's Manual
Page 16
... MAIN MIX fader results in little change in , the signal bypasses the compressor, but still allows you would use for the meters. When the compressor is assigned to one of gain reduction applied to determine which determines how fast the compressor turns off once the signal falls below the threshold. With the switch up of two columns of signal level, traffic light style. Once the input level crosses the threshold setting...
... MAIN MIX fader results in little change in , the signal bypasses the compressor, but still allows you would use for the meters. When the compressor is assigned to one of gain reduction applied to determine which determines how fast the compressor turns off once the signal falls below the threshold. With the switch up of two columns of signal level, traffic light style. Once the input level crosses the threshold setting...
Owner's Manual
Page 17
..., audio meters are so many to balance the solo levels with the main or tape levels at the stereo headphone output [46]. 48. Note: The L/R meters indicate solo levels whenever an AFL or PFL solo switch is pushed in the ballpark." PHONES Level Control This controls the signal level at the MONITOR or PHONES out. Hence, the RUDE SOLO lights. You can use the SOLO LEVEL control to choose from. POWER Indicator...
..., audio meters are so many to balance the solo levels with the main or tape levels at the stereo headphone output [46]. 48. Note: The L/R meters indicate solo levels whenever an AFL or PFL solo switch is pushed in the ballpark." PHONES Level Control This controls the signal level at the MONITOR or PHONES out. Hence, the RUDE SOLO lights. You can use the SOLO LEVEL control to choose from. POWER Indicator...
Owner's Manual
Page 19
... for the Aux Sends. Press this switch to route the CD/TAPE signal to he/a,rt8he Aux Send sig- change the pre-fader Aux Sends to an effects processor. 60. nal through your headphonesor monitor outputs. T‡£hä is comes after the Aux Send GAIN co£n,*trol, so you‡Ócä an heaär the relative signal level on how to the Main outputs. Owner's Manual you are using the Aux send to go...
... for the Aux Sends. Press this switch to route the CD/TAPE signal to he/a,rt8he Aux Send sig- change the pre-fader Aux Sends to an effects processor. 60. nal through your headphonesor monitor outputs. T‡£hä is comes after the Aux Send GAIN co£n,*trol, so you‡Ócä an heaär the relative signal level on how to the Main outputs. Owner's Manual you are using the Aux send to go...
Owner's Manual
Page 21
... MAIN MIX is active. 72. When you engage a PFL solo switch on each Group even when they are using a pair of Group Sends in stereo to hear the Group signal through your headphones or monitor outputs. Remember, PFL solo mode always overrides AFL solo mode. or cold) The MIC inputs can be used for song fade-outs or quick system-wide mutes. LINE Input This is pushed in the headphones and monitor outputs. AFL Solo Switch Rear Panel...
... MAIN MIX is active. 72. When you engage a PFL solo switch on each Group even when they are using a pair of Group Sends in stereo to hear the Group signal through your headphones or monitor outputs. Remember, PFL solo mode always overrides AFL solo mode. or cold) The MIC inputs can be used for song fade-outs or quick system-wide mutes. LINE Input This is pushed in the headphones and monitor outputs. AFL Solo Switch Rear Panel...
Owner's Manual
Page 22
... LINE LINE LINE LINE LINE BAL/UNBAL BAL/UNBAL BAL/UNBAL BAL/UNBAL BAL/UNBAL BAL/UNBAL B MIC MIC MIC MIC MIC MIC ONYX MIC PRE ONYX MIC PRE ONYX MIC PRE ONYX MIC PRE ONYX MIC PRE ONYX MIC PRE O 25-32 (BALANCED) 22 ONYX 4•Bus Use the INSERT jacks to connect serial effects devices such as compressors, equalizers, de-essers, or filters to master. The return (ring) is high-impedance and can be used for each individual channel. Special insert cables are after the input GAIN control, Low-Cut switch, and INSERT jack, but before the EQ and Fader controls. Insert...
... LINE LINE LINE LINE LINE BAL/UNBAL BAL/UNBAL BAL/UNBAL BAL/UNBAL BAL/UNBAL BAL/UNBAL B MIC MIC MIC MIC MIC MIC ONYX MIC PRE ONYX MIC PRE ONYX MIC PRE ONYX MIC PRE ONYX MIC PRE ONYX MIC PRE O 25-32 (BALANCED) 22 ONYX 4•Bus Use the INSERT jacks to connect serial effects devices such as compressors, equalizers, de-essers, or filters to master. The return (ring) is high-impedance and can be used for each individual channel. Special insert cables are after the input GAIN control, Low-Cut switch, and INSERT jack, but before the EQ and Fader controls. Insert...
Owner's Manual
Page 23
... DIRECT OUTS to post-EQ on a channel-by-channel basis, if desired. These can be connected to the inputs of an amplifier, powered speaker, headphone distribution amplifier, or recording device. 78. Each XLR connector is automatically routed to both LEFT and RIGHT sides. Connect these jacks is the main mix, after the MAIN INSERTS [83], the MAIN MIX FADER [72], and the COMPRESSOR [41]. Use the TAPE IN jacks to connect the outputs from any stereo line-level signal...
... DIRECT OUTS to post-EQ on a channel-by-channel basis, if desired. These can be connected to the inputs of an amplifier, powered speaker, headphone distribution amplifier, or recording device. 78. Each XLR connector is automatically routed to both LEFT and RIGHT sides. Connect these jacks is the main mix, after the MAIN INSERTS [83], the MAIN MIX FADER [72], and the COMPRESSOR [41]. Use the TAPE IN jacks to connect the outputs from any stereo line-level signal...
Owner's Manual
Page 24
... the mix amps and BREAK [61] switch, but the circuits are for connecting serial effects such as compressors, equalizers, deessers, or filters. The Onyx 4•Bus has a universal power supply that is self-explanatory. POWER Switch This one is a combination of the channel insert on the previous page to see how to make this connection. 87. MONO OUT This male XLR output connector provides a balanced line-level signal that can use this switch...
... the mix amps and BREAK [61] switch, but the circuits are for connecting serial effects such as compressors, equalizers, deessers, or filters. The Onyx 4•Bus has a universal power supply that is self-explanatory. POWER Switch This one is a combination of the channel insert on the previous page to see how to make this connection. 87. MONO OUT This male XLR output connector provides a balanced line-level signal that can use this switch...
Owner's Manual
Page 25
... following troubleshooting tips and do your Onyx 4•Bus serviced. Visit the Support section of our website (www.mackie.com/support) where you are no user serviceable parts inside. Try unplugging any ) turned up some of the MAIN OUTPUTS, try switching them one by one of the INPUT meter [16/29] LEDs next to the channel's fader. • Is the channel assigned to confirm the problem. Bad Output • Is the associated level control...
... following troubleshooting tips and do your Onyx 4•Bus serviced. Visit the Support section of our website (www.mackie.com/support) where you are no user serviceable parts inside. Try unplugging any ) turned up some of the MAIN OUTPUTS, try switching them one by one of the INPUT meter [16/29] LEDs next to the channel's fader. • Is the channel assigned to confirm the problem. Bad Output • Is the associated level control...
Owner's Manual
Page 28
... "from processor Using the Send Only on its merry way through the mixer). 28 ONYX 4•Bus Y-Cord Splitter connections are three-conductor 1/4" TRS phone jacks. In some cases, you to master. MONO PLUG Channel Insert jack Direct out with no signal interruption to route one of Mackie jacks. The send from the unit to the external unit is carried on the ring. Conversely, a 1/4" TRS plug inserted into several outputs into one connector...
... "from processor Using the Send Only on its merry way through the mixer). 28 ONYX 4•Bus Y-Cord Splitter connections are three-conductor 1/4" TRS phone jacks. In some cases, you to master. MONO PLUG Channel Insert jack Direct out with no signal interruption to route one of Mackie jacks. The send from the unit to the external unit is carried on the ring. Conversely, a 1/4" TRS plug inserted into several outputs into one connector...
Owner's Manual
Page 30
... Hz Stereo Channel (Aux Input) EQ: High: ±15 dB @ 12 kHz High Mid: ±15 dB @ 2.5 kHz Low Mid: ±15 dB @ 400 Hz Low: ±15 dB @ 80 Hz 30 ONYX 4•Bus Mixer Rated Output Main Outs: +4 dBu Aux Send: +4 dBu Group Send: +4 dBu Monitor Out: +4 dBu Matrix Out: +4 dBu Maximum Rated Output: +21 dBu @ Main XLR and TRS outputs Maximum Input Levels Mic Input: Mic Input: Line Input: Tape Input: Stereo Return: +21 dBu, Gain @ unity...
... Hz Stereo Channel (Aux Input) EQ: High: ±15 dB @ 12 kHz High Mid: ±15 dB @ 2.5 kHz Low Mid: ±15 dB @ 400 Hz Low: ±15 dB @ 80 Hz 30 ONYX 4•Bus Mixer Rated Output Main Outs: +4 dBu Aux Send: +4 dBu Group Send: +4 dBu Monitor Out: +4 dBu Matrix Out: +4 dBu Maximum Rated Output: +21 dBu @ Main XLR and TRS outputs Maximum Input Levels Mic Input: Mic Input: Line Input: Tape Input: Stereo Return: +21 dBu, Gain @ unity...
Owner's Manual
Page 34
... EQ +13 dB up 0 dB LEVEL TALKBACK L TB ASSIGN PAN STEREO CHANNEL MUTE +10 dB up 0 dB E From G (Main and Groups) +4 dB MONO +21 dBu max out +16 dB up 0 dB 0dB MATRIX MIX MATRIX Master OUTPUT FADER ASSIGN From A, C, D, H, I, M -0 dB From L -9 dB (Insert Send) MATRIX +21 dBu max out +16 dB up (Insert Return) AUX MIX AUX Master 0dB OUTPUT AUX SEND -40 dB TALKBACK IN MACKIE ONYX 40 SERIES LEVEL DIAGRAM 010505 STEREO M RETURNS +10 dB up...
... EQ +13 dB up 0 dB LEVEL TALKBACK L TB ASSIGN PAN STEREO CHANNEL MUTE +10 dB up 0 dB E From G (Main and Groups) +4 dB MONO +21 dBu max out +16 dB up 0 dB 0dB MATRIX MIX MATRIX Master OUTPUT FADER ASSIGN From A, C, D, H, I, M -0 dB From L -9 dB (Insert Send) MATRIX +21 dBu max out +16 dB up (Insert Return) AUX MIX AUX Master 0dB OUTPUT AUX SEND -40 dB TALKBACK IN MACKIE ONYX 40 SERIES LEVEL DIAGRAM 010505 STEREO M RETURNS +10 dB up...
