Phonic AM844D User’s Manual
User's Manual
AM844D
Manual del Usuario
English Español
AM844D
COMPACT MIXERS
MEZCLADORAS COMPACTAS
ENGLISH .....................................I
ESPAÑOL .....................................II
V1.1 05/05/2014
USER'S MANUAL
CONTENTS
INTRODUCTION.....................................................................1
FEATURES..............................................................................1
SYSTEM REQUIREMENTS....................................................1
BASIC SETUP..........................................................................1
MAKING CONNECTIONS.......................................................2
CONTROLS AND SETTINGS..................................................4
DIGITAL EFFECT ENGINE..................................................5
SPECIFICATIONS...................................................................8
APPENDIX
DIGITAL EFFECT TABLE.........................................................1
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APPLICATION.........................................................................2
DIMENSION.............................................................................3
BLOCK DIAGRAM...................................................................4
Phonic preserves the right to improve or alter any information within this
document without prior notice.
IMPORTANT SAFETY INSTRUCTIONS
The apparatus shall not be exposed to dripping or splashing and that no objects
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shall be placed on the apparatus. The MAINS plug is used as the disconnect device, the disconnect device shall
remain readily operable.
Warning: the user shall not place this apparatus in the
can be easily accessible.
1. Read these instructions before operating this
apparatus.
2. Keep these instructions for future reference.
3. Heed all warnings to ensure safe operation.
4. Follow all instructions provided in this document.
5. Do not use this apparatus near water or in locations
where condensation may occur.
6. Clean only with dry cloth. Do not use aerosol or liquid
cleaners. Unplug this apparatus before cleaning.
7. Do not block any of the ventilation openings. Install
in accordance with the manufacturer
8. Do not install near any heat sources such as radiators,
heat registers, stoves, or other apparatus (including
9. Do not defeat the safety purpose of the polarized or
grounding-type plug. A polarized plug has two blades
with one wider than the other. A grounding type plug
has two blades and a third grounding prong. The wide
blade or the third prong is provided for your safety. If
the provided plug does not
an electrician for replacement of the obsolete outlet.
’
s instructions.
.
into your outlet, consult
with liquids, such as vases,
area during the operation so that the mains switch
CAUTION
RISK OF ELECTRIC SHOCK
DO NOT OPEN
CAUTION: TO REDUCE THE RISK OF ELECTRIC SHOCK,
DO NOT REMOVE COVER (OR BACK)
NO USER SERVICEABLE PARTS INSIDE
REFER SERVICING TO QUALIFIED PERSONNEL
The lightning flash with arrowhead symbol, within an
equilateral triangle, is intended to alert the user to the
“
presence of uninsulated
product
’
magnitude to constitute a risk of electric shock to persons.
The exclamation point within an equilateral triangle is in-
tended to alert the user to the presence of important operat-
ing and maintenance (servicing) instructions in the literature
accompanying the appliance.
WARNING: To reduce the risk of or electric shock, do
not expose this apparatus to rain or moisture.
dangerous voltage” within the
10. Protect the power cord from being walked on or
pinched particularly at plug, convenience receptacles,
and the point where they exit from the apparatus.
11. Only use attachments/accessories
by the
manufacturer.
12. Use only with a cart, stand, tripod, bracket, or
table
by the manufacturer, or sold with
the apparatus. When a cart is used, use caution
when moving the cart/apparatus
combination to avoid injury from tipover.
13. Unplug this apparatus during lighting
storms or when unused for long
periods of time.
14. Refer all servicing to
service personnel.
Servicing is required when the apparatus has been
damaged in any way, such as power-supply cord or
plug is damaged, liquid has been spilled or objects
have fallen into the apparatus, the apparatus has
been exposed to rain or moisture, does not operate
normally, or has been dropped.
CAUTION: Use of controls or adjustments or performance
of procedures other than those
may result in
hazardous radiation exposure.
INTRODUCTION
Thank you for choosing one of Phonic’s many quality compact
mixers. The brand new AM844D mixers – designed by the
ingenious engineers that have created a variety of mixers
fantastic in style and performance in the past – display similar
prociency that previous Phonic products have shown; with more
than a few renements, of course. Featuring full gain ranges,
amazingly low distortion levels, and incredibly wide dynamic
ranges, these amazing mixers are bound to make a big splash in
the World of mixing.
We know how eager you are to get started – wanting to get the
mixer out and hook it all up is probably your number one priority
right now – but before you do, we strongly urge you to take a
look through this manual. Inside, you will nd important facts and
gures on the set up, use and applications of your brand new
mixer. If you do happen to be one of the many people who atly
refuse to read user manuals, then we just urge you to at least
glance at the Instant Setup section. After glancing at or reading
through the manual (we applaud you if you do read the entire
manual), please store it in a place that is easy for you to nd,
because chances are there’s something you missed the rst time
around.
FEATURES
● Audiophile-Quality & ultra low noise
● 8 Mic/Line channels with inserts and phantom power
● 4 stereo channels with 4-band EQ
● 4 true subgroups with main L and R routing switches and
double-bused outs
● 10 mic preamps with +48V phantom power
● Direct outputs for multi-track recording
● 3-band EQ with swept mid-range plus low cut on each mono
channel
● 18dB/oct, 75Hz low cut lter on each mic channels
● 4 aux sends, aux 1 & 2 with Pre/Post switch
● 4 stereo aux returns, 2 with effect to monitor
● +4/-10 level matching on Ch9/10, Ch11/12 stereo line in for
expanded applications.
● 32/40-bit digital effect processor with 16 effects
● Control Room and Phones outputs with multi-input sources
select function
● Built-in switching power supply with universal connector,
100-240VAC, 50/60Hz
● Rack-mounting kit included
GETTING STARTED
1. Ensure all power is turned off on the AM844D Mixer. To
totally ensure this, the AC cable should not be connected to
the unit.
2. All faders and level controls should be set at the lowest
level and all channels switched off to ensure no sound is
inadvertently sent through the outputs when the device
is switched on. All levels should be altered to acceptable
degrees after the device is turned on.
3. Plug all necessary instruments and equipment into the
device’s various inputs as required. This may include line
signal devices, as well as microphones and/or guitars,
keyboards, etc.
4. Plug any necessary equipment into the device’s various
outputs. This could include Ampliers, active speakers or
monitors, signal processors, and/or recording devices. 5.
Plug the supplied AC cable into the AC inlet on the back of
the device ensuring the local voltage level is identical to that
required on your device.
6. Plug the supplied AC cable into a power outlet of a suitable
voltage.
7. Turn the power switch on.
CHANNEL SETUP
1. To ensure the correct audio levels of each input channel is
selected, every channel should rst be switched off and all
faders set to 0.
2. Choose the channel that you wish to set the level of, and
ensure that channel has a signal sent to it similar to the
signal that will be sent when in common use. For example, if
the channel is using a microphone, then you should speak or
sing at the same level the performer normally would during a
performance. If a guitar is plugged into that channel, then the
guitar should also be used as it normally would be.
3. Press the Solo button of the channel, and engage the “level
set” button next to the level meter, allowing you to see the
PFL audio signal level in the level meter.
4. Set the gain of the selected channel to a level that ensures
the audio level is around 0 dB, as indicated by the level
meter.
5. This channel is now ready to be used; you can stop making
the audio signal.
6. To activate the channel, release the Solo button and engage
the channel’s on button and press the 1/2, 3/4 or L/R routing
buttons, allowing the signal to be sent to the corresponding
destinations.
7. You should now select the next channel to set and go back to
follow steps 1 through 6.
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AM844D
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MAKING CONNECTIONS
Channel Inputs
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1. XLR Jacks
These jacks accept XLR inputs for
balanced signals. They can be used
in conjunction with microphones such
as professional condenser, dynamic
or ribbon microphones - with standard
XLR male connectors. With low noise
preampliers, these inputs serve for
crystal clear sound replication.
NB. When using an unbalanced microphone,
please ensure phantom power is switched off.
However, when using condenser microphones
the phantom power should be activated.
2. Line In Jacks
These inputs accept 1/4” TRS and 1/4”
TS line inputs for the addition of various
music instruments – such as keyboards,
drum machines, electric guitars, as well
as a variety of other electric instruments.
3. INS (External Device Insert Jack)
The primary use for these TRS phone jacks is for the addition of
external devices, such as dynamic processors or equalizers, to
the corresponding mono input channel. This will require a Y cord
that can send and receive signals of the mixer to and from an
external processor.
4. Stereo Channel Inputs
The AM 844D features 4 stereo input channels (channels 9
through to 16), the inputs of which differ slightly to the mono
channels. The 3-pin XLR inputs on the rst two stereo inputs
are for the addition of microphones with typical XLR male inputs,
where the Line 1/4” TRS jacks are for the addition of various
stereo line level input devices, such as keyboards. If you wish
to use a monaural device on a stereo return input, simply plug
the device’s 1/4” phone jack into the left (mono) stereo input and
leave the right input bare. The signal will be duplicated to the
right due to the miracle of jack normalizing.
MASTER SECTION
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5. 2T Return
These inputs accommodate RCA connectors from such devices
as tape and CD players, PCs and other sources. The level of this
input can just adjusted using the 2T Return control on the face
of the Mixer.
6. Record Outputs
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As with the 2T Inputs, these outputs will accommodate RCA
connectors, able to be fed to a variety of recording devices.
7. Phones Outputs
These output ports are suited for
use with headphones or headphone
ampliers, allowing monitoring of the
mix. The audio level of this output is
controlled using the Control Room
/ Phones control on the front panel’s
master section.
8. 12V Lamp
This BNC socket allows you to attach
a 12 Volt gooseneck lamp, allowing
better visibility in areas with poor light.
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REAR PANEL
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9. Direct Outs
These connections are for the direct output of the signals
received by mono channels 1 through to 8, post-fader, post-EQ,
post-HPF, post-mute. They are most commonly used to connect
Multi-track recorders and they can be also used to connect your
multichannel audio to your DAW, AM 844D can also be used as
an 8-track studio mixer.
AM844D
10. Auxiliary (AUX) Sends
These 1/4” phone jacks are the
nal output of line-level signal
fed from the corresponding
auxiliary send mixing buses,
and are best suited for use
with stage monitors. Feeding
the output from the Auxiliary
outs to an amplier - and
possibly an equalizer - and
then to a oor monitor speaker allows artists to monitor their
own instruments or vocals whilst performing. There are four AUX
Sends at the AM 844D.
11 Main Outputs
These outputs will output the nal stereo
line level signal sent from the main
mixing bus. The primary purpose of the
two XLR jacks is to send the main output
to external devices, which may include
power ampliers (and in-turn, a pair of
speakers), other mixers, as well as a wide
range of other possible signal processors
(equalizers, crossovers, etcetera). The two
1/4” phone jacks are able to send the Main
output to external devices that may run in
parallel with the mixer. This may include
additional power ampliers, mixers, PA
systems, as well as a wide range of other
possible signal processors.
12. Main Insert
Located on the rear of the AM 844D, the primary use for these
TRS phone jacks is for the addition of external devices, such
as dynamic processors or equalizers, to the main L and main R
signals. This will require a Y cord that can send (pre-fader) and
receive signals to and from an external processor.
13. CTRL RM Control Room Outputs
These two 1/4” Phone Jack outputs feed the signal altered by the
Control Room level control on the face of the mixer. This output
has extensive use, as it can be used to feed the signal from the
mixer to an active monitor, for the monitoring of the audio signal
from within a booth, among many other possible uses.
14. Foot Switch Jack
The foot switch port is for the inclusion of a foot switch, used for
remote activation and deactivation of the built-in Digital Effect
processor.
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15. Group Outs
These 1/4” phone jacks output the nal feed from the Group 1/5,
2/6, 3/7 and 4/8 Faders on the main panel of the mixer. These
outputs can be sent to the Left or Right Main channels using the
corresponding selector, they can also be used to feed multi-track
records, as well as an amplier and speakers to be used along
with the Main Speakers. Since the signal of Group 1 is mimicked
to the Group 5 output, Group 2 to Group 6 – and so forth – these
outputs can easily be used to feed an 8 track recorder by simply
connecting the Group outputs to the corresponding Multi-track
input channels. Similar to if a Y-cord was built into your AM
844D!
16. AUX Returns
The 1/4” TRS AUX Return inputs are for the return of audio to
the AM 844D mixers, processed by an external signal processor.
If really needed, they can also be used as additional inputs. The
feed from these inputs can be adjusted using the AUX Return
controls on the face of the mixer. When connecting a monaural
device to the AUX Return 1, 2 and 4 inputs, simply plug a 1/4”
phone jack into the left (mono) input, and the signal will appear in
the right as well. You can use balanced and unbalanced signals.
NB. When any device is plugged into the mixer’s corresponding EFX
Return inputs (AUX Return 3), the mixer’s internal digital effect engine is
then disabled.
17. Power Connector and Fuse Holder
Used for the addition of a power cable and
supply, allowing power to be supplied to the
mixer. Please use the power cable that is
included with this mixer only. The Fuse holder,
located above the AC Power connector, is,
of course, for the AM 884D’s fuse. If the fuse
happens to blow, open the holder cover, and
replace the fuse with a suitable replacement
(as indicated on the fuse holder’s cover).
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AM844D
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CONTROLS AND SETTINGS
Rear Panel
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18. Power Switch
You can use it to turn the mixer on
and off. Ensure you turn all level
controls down before activating.
19. Phantom Power Switch
When this switch is in the on position,
it activates +48V of phantom power
for all microphone inputs, allowing
condenser microphones (well, the
ones that don’t use batteries) to
be used on these channels. Activating Phantom Power will be
accompanied by an illuminated LED above the left channel Level
Meter. Before turning Phantom Power on, turn all level controls
to a minimum to avoid the possibility of a ghastly popping sound
from the speakers.
NB. Phantom Power should be used in conjunction with balanced
microphones. When Phantom Power is engaged, single ended
(unbalanced) microphones and instruments should not be used on the
Mic inputs. Phantom Power will not cause damage to most dynamic
microphones, however if unsure, the microphone’s user manual should
be consulted.
Channel Controls
20. Line/Mic Gain Control
This controls the sensitivity of the input signal of
the Line/Microphone input of mono channels, the
gain should be adjusted to a level that allows the
maximum use of the audio, while still maintaining
the quality of the feed. This can be accomplished
by adjusting it to a level that will allow the peak
indicator occasionally illuminate. On channels
9-10 and 11-12, the gain control affects the
microphone input only, and on channels 13-14
and 15-16, this only affects line inputs (as there
are no microphone inputs on these channels).
21. Low Cult Filter (75 Hz)
Located on channels 1 through to 8, will activate
a high-pass lter that reduces all frequencies
below 75 Hz at 18 dB per Octave, helping to remove any
unwanted ground noise or stage rumble. Stereo channels does
not feature this low cut lter.
22. +4/-10dB Buttons
Located on stereo channels 9-10
and 11-12, these buttons select the
input signal level, allowing the mixer
to better adapt to different operating
levels. If the input source is -10 dBu
(consumer audio standard), it is best to
engage the switch, allowing the signal
to be heard. If the input source is +4
dbV (professional audio standard) the
corresponding input channel’s button
should be disengaged to ensure the
integrity of the Mixer’s circuitry. If you
are unsure of the source’s operating
level, we suggest leaving the switch
disengaged until you test the source’s signal. You can then
engage if necessary (if the level of input is obviously too low).
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23. High Frequency Control
Use it to give a shelving boost or cut
of ±15 dB to high frequency (12 kHz)
sounds. This will adjust the amount
of treble included in the audio of
the channel, adding strength and
crispness to sounds such as guitars,
cymbals, and synthesizers.
24. Middle Frequency Control
You can provide a peaking style of
boost and cut to the level of middle
frequency sounds at a range of ±15
dB with this control. The AM 844D
mixer also provides a sweep control,
allowing you to select a center
frequency between 100 Hz and 8
kHz. Changing middle frequencies of
an audio feed can be rather difcult when used in a professional
audio mix, as it is usually more desirable to cut middle frequency
sounds rather than boost them, soothing overly harsh vocal and
instrument sounds in the audio. The stereo channels of the AM
844D mixer feature a High-Mid and Low-Mid control instead of the
typical controls described above. They provide a peaking style of
boost and cut to middle frequencies, where the frequencies are
set at 3 kHz and 800 Hz for the High- and Low-Mids respectively.
25. Low Frequency Control
This control is used to give a shelving boost or cut of ±15 dB
to low frequency (80 Hz) sounds. This will adjust the amount of
bass included in the audio of the channel, and bring more warmth
and punch to drums and bass guitars.
26. AUX Controls
These four AUX controls alters the
signal level that is being sent to
the auxiliary 1 to 4 mixing buses,
the signal of which is suitable for
connecting stage monitors, allowing
artists to listen to the music that is
being played. AUX 1 and 2 feature a
Pre/Post button, which alternates the
feed to the AUX mixing bus between
a post and pre-fader feed. AUX 3, on
the other hand, acts as an EFX send,
the signal of which can be used in
conjunction with external signal
processors (which can be returned to
the mixer via the AUX return input),
or simply as an Auxiliary output. Both
the AUX 3 (EFX) and AUX 4 controls
are post fader and are sent directly
to the corresponding outputs.
27. Pan / Balance Controls
This alternates the degree or level of
audio that the left and right side of the main mix should receive.
On mono channels, the PAN control will adjust the level that the
left and right should receive (pan), where as on a stereo channel,
adjusting the BAL control will attenuate the left or right audio
signals accordingly (balance).
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AM844D
28. On Button and Indicator
This turns the channel on, allowing the user to use the feed
from the channel’s inputs to supply the MAIN L/R, GROUP 1/2,
GROUP 3/4, AUX and EFX buses (as specied by the user, of
course). The corresponding indicator will be illuminated when
turned on.
29. 1-2, 3-4 and L-R Buttons
These handy buttons allow you to decide the audio path of the
corresponding channel. Pushing the “1/2” or “3/4” buttons allows
the signal to be sent to the Group 1/2 or 3/4 mixes respectively,
where the “L-R” allows it to be sent to the Main L/R mix.
30. Peak Indicator
This LED indicator will illuminate when the channel hits high
peaks, 6 dB before overload occurs. It is best to adjust the
channel level control so as to allow the PEAK indicator to light
up on regular intervals only. This will ensure a greater dynamic
range of audio. This indicator also doubles as a Solo indicator,
when the SOLO button is engaged.
31. Solo Button
The Solo button is pushed to allow the signal of the corresponding
channel to be sent to the Control Room / Phones mixing bus
(pre or post fader, depending on the properties selected by the
pre / post button, located by the Control Room / Phones source
buttons), for use with either headphones or studio monitors.
This button also allows for easier isolation of individual channel
signals, ensuring setting of the input gain or tracking of audio by
sound engineers is made simpler. The Peak indicator above the
Solo button also doubles as a Peak Indicator, illuminating when
the signal reaches high peaks.
32. Channel Level Control (Fader)
This control will alter the signal level that is sent from the
corresponding channel to the corresponding mixing buses.
DIGITAL EFFECT ENGINE
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33. Program Control
This rotary control allows users to select the digital effect program
of your choice. There are 16 points on the rotary control, each of
which corresponds with an effect type. See the digital effect table
for more information.
34. Parameter Control
Turning this control will adjust the one main parameter of the
selected effect. Each effect’s parameter can be found on the
digital effect table.
35. Effect On Button
This button is pushed to turn the corresponding effect panel on
or off. Effects can also be disabled by using a footswitch with the
jack on the rear of the mixer. Please note: this button will not lock
down as similar buttons on the mixer do.
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AM844D
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MASTER SECTION
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36. AUX Return 1 and 2 Controls
These controls adjust the signal level of audio fed through to the
stereo AUX Return inputs. The “To AUX Send 1” and “To AUX
Send 2” controls adjust the pre-fader level of the signal from the
AUX Return controls to the corresponding AUX mixing buses for
effect-to-monitor sends.
37. EFX Return Control
This control adjusts the signal level of audio fed through to stereo
AUX Return 3 inputs. If no device is plugged into the AUX Return
3 inputs, it then acts as the nal level control of the built-in Digital
Effect Engine.
38. Main L/R - Group Buttons
The rst of these buttons changes the destination of the signal
sent from the AUX Return 3 mixing buses between the Main L/R
and Group mixing buses. The second button works when the
user selects to send the signal “To Group”, allowing the signal to
be sent to either Group 1-2 or Group 3-4.
39. AUX Return 4 Control
This control adjusts the signal level of audio fed through to the
stereo AUX Return 4 inputs. The accompanying “C-R Phones
Only” button allows users to send the signal to the Control Room
/ Phones mixing bus for monitoring purposes.
40. Solo Returns Button
Pushing this buttons allows you to send the signal from all AUX
Returns to solo mixing bus (which is, intern, send to the Control
Room / Phones mixing bus). When the Solo is activated, the
corresponding LED indicator will illuminate.
41. AUX Send Master Controls
These controls adjust the nal level of the AUX 1, 2 and 3/4
signals (as taken from the AUX 1, 2, 3 and 4 level controls on each
channel strip), the audio of which is sent to the corresponding
AUX send outputs. The SOLO buttons accompanying these
controls allow you to send the AUX send signals to the Control
Room / Phones mixing bus for monitoring purposes.
42. AUX Solo Buttons
Pushing one or more of these buttons allows you to send the
signals from the AUX 1, 2 or 3/4 mixing buses to the Control
Room / Phones mixing bus.
43. Solo Mode Button and Indicator
This button alternates the solo source signals between those of
post-fader (normal) and pre-fader feeds (level set), to be sent to
the Control Room / Phones mixing bus. When the Solo indicator,
located beside the Level Meter, is illuminated, one or more Solo
buttons has been pushed; therefore the Level meter will display
properties of the Solo signal, which is helpful with setting of
channel properties. If the Solo indicator illuminates green, this
means the Solo feed is a pre-fader signal. If the solo indicator
illuminates red, the feed is post-fader. If no Solo buttons are
activated, the Control Room / Phones selected sources (Main
L-R, Group 1-2, Group 3-4 and/or 2T Return) signal properties
are displayed by the Level Meter. In this case, the Level meter
will display the sum of the selected signals.
44. 2T Return Controls
Turning the 2T Return level control adjusts the signal level of
the feed from the 2T Return inputs. The “to Main L/R” button
that accompanies this control allows users to send the 2T return
signal to the Main L-R mixing bus. When this is done, the 2T
return signal is not sent to the Rec Out, as to avoid producing a
feedback loop when recorded signals are fed back into the 2T
return.
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AM844D
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