AVE MX 8 User Manual

Analogue/digital 8-channel mixer

MX 8

User guide

page 2 User guide MX-8

Table of contents

1. Introduction.................................................................................................................3

1.1 Security advice...................................................................................................3

2. Description of front and rear panel.............................................................................4

3 Basic operation of the MX-8 .......................................................................................5

3.1 Programmable settings („presets“)....................................................................5

3.2 Changing between presets ................................................................................6

3.3 Temporarily changing an existing preset...........................................................6

4 Extended functions.....................................................................................................7

4.1 Programming a new preset (or reprogramming an existing one) ......................7

4.2 Programming the MX-8 / The parameter menu.................................................8

4.2.1 Preset........................................................................................................9

4.2.2 Parameters................................................................................................9

4.2.3 Config......................................................................................................10

4.2.4 Service ....................................................................................................10

4.2.5 Quick reference: Table with all programmable parameters....................11

4.3 Internal modifications.......................................................................................11

4.3.1 Phantom voltage, microphone/line, high-pass filter................................11

4.3.2 Automatic threshold reduction, transmission matrix ...............................12

4.3.3 3-band equalizer, compressor/limiter, gain, threshold............................13

4.3.4 Microprocessor Gate control...................................................................13

5 Specifications............................................................................................................14

page 3 User guide MX-8

1.

Introduction

Thank you for choosing the A.V.E. analogue/digital 4-channel mixer MX-8 with four
microphone/line inputs; an outstanding unit that was designed particularly for superior
audio quality in churches.

Each microphone/line input is equipped with a compressor/limiter, 3-band equalizer,
as well as indicators for volume, operating status, and peak, respectively. An
automatic processing unit controls additional functions, such as priority, ducking,
number of activated microphones, or the hold time. Furthermore, a variable graphic
equalizer with 48 bands (12 per output) allows an optimisation for every application.
16 fully parametric equalizers (4 per output), each with an individually adjustable Q­factor of up to 100, as well as an automatic gain adjustment when additional
microphones are activated provide an optimum feedback elimination.

The MX-8 is equipped with its own software. This makes programming simple and
straightforward – Laptop or PC are no longer required. Up to 20 different sets of
settings, so-called „presets“, can be programmed and can easily be recalled by the
user for each occasion as required.

This manual adresses users in sections 2., 3., and 4.1. These parts of the manual
deal with explaining the components of the unit and describe the basic operation.
The following part is addressed to the qualified technical personnel in charge of
extended programming and internal modifications.

1.1 Security advice

• Please read the information provided in this manual before starting up
the unit.

• W

ITHIN THIS UNIT THERE IS DANGEROUS VOLTAGE PRESENT

CONSTITUTING A RISK OF ELECTRIC SHOCK

. D

O NOT OPEN THE

COVER

. I

NTERNAL MODIFICATIONS ARE TO BE COMPLETED BY

AUTHORIZED PERSONNEL ONLY

. T

HERE ARE NO USER

-

SERVICABLE PARTS INSIDE

.

• The MX-8 is equipped with a power cord for connecting the three-pin
inlet connector of the unit to a 230 V / 50 Hz AC voltage source. Make
sure this cable is not damaged. Do not use any defective or damaged
power cords!

A.V.E. mbH Audio, Vertriebs- Entwicklungsgesellschaft mbH

Markgräfler Straße 2, D-70329 Stuttgart

Telephone: [phone]

Telefax: [phone]

http://www.ave-stuttgart.de

Email: [e-mail]

page 4 User guide MX-8

2.

Description of front and rear panel

1 14 15 8 11

13

2,3 4 5,6 7 9 10 12

Front panel of the MX-8

1. Volume control (for channels 1 – 4): Allows adjustment of the level of the
signal sources connected to the microphone/line inputs (26.). During installation
by the technician, the optimal level will be marked on the unit.

2. Level indicator (for channels 1 – 4): 4-level LED indicator. The maximum level
of +5 dB indicates that the input is overdriven.

3. Gate indicator (green LED; for channels 1 – 4): Optically indicates an
activated input. The processor automatically determines which of the inputs is
activated. The level difference at which an additional microphone is opened, can
be set by an internal modification (see section 4.3.4).

4. Channel selector CD/tape: Choose between music rendition via CD or tape.
The selection is indicated by one of the LEDs (5. or 6.). Consumer-level audio
equipment such as CD or cassette player are connected on the back to inputs
(24.) or (25.), respectively.

5. LED indicator CD: Music rendition via CD

6. LED indicator tape: Music rendition via tape

7. Volume control for CD/tape

8. Level indicator for CD/tape: A level of +5 dB indicates that the input is
overdriven.

9. Low-frequency level control for CD/tape: Controls (9.) and (10.) allow an
optimisation of the sound characteristics of the music rendition.

10. High-frequency level control for CD/tape

11. Volume control for headphones: Input (12.) allows the connection of
headphones for monitoring purposes, the volume of which can be adjusted with
this control. Which of the 4 outputs is to be directed to the headphones can be
selected in the parameter menu (as described in section 4.2.3).

12. Connection for headphones

13. LCD display: The bright display contributes to the clear and user-friendly
operation of the MX-8. (The contrast of the display can be adjusted in the
parameter menu as described in section 4.2.3.)

page 5 User guide MX-8

14. Volume/Value knob: Rotary encoder with integrated pushbutton. This knob is
used, among others, to set the overall volume or set other values.

15. Preset/Parameter knob: Rotary encoder with integrated pushbutton. This knob
is used, among others, to switch from one preset to another.

16 17 18 27

19 20 21 22 23 24 25 26

Rear panel of the MX-8

16. Power connector: Connector for power cord to a 230 V / 50 Hz AC voltage
source.

17. Fuse: 315 mA

18. Main on/off switch

19. Output: Output connectors (to power amplifiers, etc.)

20. Direct OUT: Direct output without any signal processing. This output can be
used for capturing and transmitting the ambiance of e.g. a mass to external
rooms.

21. Level Direct OUT: Controls the output level of the direct output

22. Link in: Permits multiple mixers to be linked, creating additional inputs.

23. Link out: Output when linking multiple mixers

24. Tape-recording: Phono connectors for tape-recording

25. Tape rendiction: Phono connectors for music rendition via tape

26. CD rendition: Phono connectors for music rendition via CD

27. Microphone/line inputs

3 Basic operation of the MX-8

3.1 Programmable settings („presets“)

The MX-8 combines numerous integrated functions with very simple operation.
Even in acoustically difficult environments, best results are achieved. So-called
„presets“ can easily be programmed. No less than 20 of these preset slots

page 6 User guide MX-8

enable programming for any application and make them available to the user at
the touch of one’s fingertips.

For each preset, the following 3 parameters are programmed:

• the master volume

• which of the 4 outputs are to be active

• a preset name. This way the different settings are immediately

distinguishable.

3.2 Changing between presets

• Turn the unit on with the main on/off switch in the back.

• The welcome message will appear in the display. After a few seconds, it

will disappear again and the settings of the current preset will show up.
Below, an example is given.

• Here one can see the current preset name (in this case „Sonntag“) as
well as the value of the master volume in percent (total output volume,
here 70%). The bar above the preset name is an analogue
representation of the master volume.

• On the right-hand side of the display the four little squares represent the
4 outputs (the numbers 1 through 4 are written above and below the
display). A dot within a square indicates, that this particular output is
active.

• Please note: The preset settings can be guarded against accidental
changes. In this „preset protection mode“, changes can only be
undertaken by pushing and turning a knob at the same time.

• In order to switch from one preset to another, push the preset knob
while turning it until the desired preset shows up in the display; then let
go. Now, all is set for the next application.

3.3 Temporarily changing an existing preset

• Should it become necessary to change the volume of a given preset,
push the volume knob (only necessary in the preset protection mode)
while turning it to set the desired value. This change is only temporary,
i.e. once the unit is turned off and back on again, the original preset is
active again.

•

Should it become necessary to temporarily change the active outputs,
then briefly push both knobs at the same time. By pushing the preset
knob, the display will successively show each output. The respective
name of the output will appear (in the example given below „SchiffV“) as

page 7 User guide MX-8

well as a little square next to the corresponding number of the output.
„On“ or „off“ indicate whether the output is active or not. This is also
reflected in the little squares, where a dot in the middle indicates an
active output.

•

Turning the volume knob by one click, you can change the output to
„on“ (active) or „off“ (deactivated). Briefly pushing the volume knob will
take you one level back, and in the display you will see the preset name
again with its current settings. These changes are also temporary, i.e. will
only be effective until the unit is turned off and back on again.

4 Extended functions

4.1 Programming a new preset (or reprogramming an existing one)

• This section describes how to programme one of the 20 preset slots, i.e.
give a preset name and select the desired master volume and outputs. In
the same fashion, existing presets can be reprogrammed (as opposed to
the temporary changes described in section 3.3).

• First, turn the unit off with the main on/off switch in the back.

• Then, turn the unit back on, while pushing both the volume und preset

knobs at the same time. Keep the knobs pushed until the parameter
menu appears (see below). The four items „preset“, „parameters“,
„config“, and „service“ appear.

• Briefly push the preset knob. The first preset will appear („preset 1“ in
case no preset name has been given so far).

• In case you wish to choose a different preset slot, briefly push the volume
knob twice. That way you move back to the main menu and can chose a
different preset by pushing and turning the preset knob.

• A yet unused preset slot can be identified by the fact that it does not yet
have given preset name, but merely „preset“ and a number (e. g. „preset
12“).

• Briefly push both knobs at the same time. Again the parameter menu
shows up.

• Push the preset knob. Now you can determine the preset name. The
cursor will blink under the first character.

• By turning the volume knob, the following letters, numbers, and special
characters will appear in this order: A-Z, Ä, Ö, Ü, a-z, ä, ö, ü, 0-9, space, !
„ # $ % & ’ ( ) * + , - . /

• Pushing the preset knob will confirm the current character und move the
cursor one position to the right. Now you can set the next character.

• Wenn you’ve filled in the preset name, turn the preset knob one click to
the right to now determine the master volume for this preset. Set the
value by turning the volume knob. The values range from 0 to 100%. The
corresponing value in dB is given in brackets.

• Now turn the preset knob again one click to the right in order to
determine the outputs for this preset.

page 8 User guide MX-8

• When pushing the preset knob, the 4 outputs will appear one after the
other with their respective names. „On“, as well as a dot in the little
square, indicate that this output is active. By turning the volume knob one
click, the shown output can bei either activated or deactivated.

• Now the programming for this preset is complete. By pushing the volume
knob, you will exit the programming mode. You will be asked whether
you would like to „Save changes?“. Pushing the volume button indicates
„yes“ and your changes will be saved (→ „Saving … do not interrupt“).
Pushing the preset knob indicates „no“ and the display will show
„Changes discarded!“.

,

T

HE FOLLOWING MODIFICATIONS ARE TO BE
PERFORMED BY QUALIFIED AUDIO TECHNICIANS
ONLY

.

4.2 Programming the MX-8 / The parameter menu

Functions and settings in the parameter domain should be changed by
qualified personnel only. The only exception is the programming of a new
preset as described in section 4.1.

The digital control boasts the great advantage of the programmability of
various functions. In this parameter menu, not only the presets are
programmed, but among others, the equalizers and the parameters for
feedback elimination are set. In fact, the entire programming of the MX-8 is
done here with menu-driven user guidance and merely two knobs. No PC or
Laptop are required.

• In oder to enter the parameter menu (and therefore the programming
mode), first turn the unit off.

• Then, turn it back on again while pushing both knobs (volume and preset)
until the parameter menu with its four items preset, parameters, config,
and service appear.

• By turning the preset knob, you can change from one menu item to the
next which is indicated by a small triangle.

• By pushing the preset knob, you chose the respective item from the
menu.

General comments on programming the MX-8:

• Turning the preset knob one click to the right will always bring you to the
next item of a menu, i. e. to the next parameter to be programmed. This
knob is therefore also marked „parameter“. For simplicity, we will
continue to name this knob the preset knob.

• Changing a value or character is always done by turning the volume
knob. This knob is therefore also marked „value“. However, here too for
simplicity, we will stay with the name of volume knob.

• These knobs are so-called dynamic rotary encoders, meaning that when
slowly turning one of them, the value will change in small increments
whereas turning a knob by the same amount more quickly will change
the value superproportionally faster. This enables a fast but precise
setting of the desired values.

• By pushing the volume knob, you will go up one level in the menu
hierarchy. Whenever you have changed any parameter, you will be
asked whether you would like to „Save changes?“. Pushing the volume
button indicates „yes“ and your changes will be saved (→ „Saving … do

page 9 User guide MX-8

not interrupt“). Pushing the preset knob indicates „no“ and the display will
show „Changes discarded!“.

• The following 4 sections will describe the programming possiblities of the
4 menu items. For quick reference, there is a table of all programmable
settings at the end (in section 4.2.5).

4.2.1 Preset

• Preset name: Determine the name for a given preset. The procedure is
described in detail in section 4.1.

• Preset master molume: Setting the master volume for a given preset.

• Preset output: Choose the desired outputs for a given preset. The

procedure is described in detail in section 4.1.

4.2.2 Parameters

• Level: Determine the level for each output. Set the desired value by
turning the volume knob. Pushing the preset knob will bring you to the

next output. With this indivudual level setting, you will achieve an optimal
balance of the outputs which remains even when changing the master
volume.

• Delay: Dalay time for the outputs 3 and 4 only. It can be set in 1-meter
increments and the corresponding delay time is given in milliseconds
(calculated according to a speed of sound of 343 m/s, corresponding to a
room temperature of 20 °C). Here, too, pushing the preset knob will
move you from one output to the next.

• Graph EG: Set the level of the 12 bands of the graphic equalizer for
each of the 4 outputs (see picture below). By turning the preset knob,

you will move to the next frequency; again by pushing it, you will move to
the next output. Please note: The variable graphic equalizer VariGraph
allows you to choose the frequencies of the 1st and 12th band of the
equalizer for an optimal adjustment to each and every application. These
frequencies can be set under the item „config“ as described in section

4.2.3. The frequencies of the 10 bands in between are calculated
automatically.

• Param EQ 1 Freq: Set the 1st frequency of the fully parameteric
equalizers (range: 20 Hz to 20.45 kHz). Here, too, the value is set with
the volume knob. Pushing the preset knob will bring you to the next
output, so you can set the first frequency for each output.

• Param EQ 1 Gain: Set the gain of the 1st band (range: +18 to -44 dB).
Between +18 and -20 dB very fine 0.5 dB increments are possible.

• Param EQ 1 Q: Set the Q-factor for the 1st band (range: 0.2 to 100;
logarithmic increments 0.2, 0.22, 0.25, 0.28, 0.32, etc.). The high Q­factors enable extremely narrow-band notch-filters for ideal feedback
elimination.

• Param EQ 2-4 Freq: Proceed as described above for bands 2, 3, and 4.

• Param EQ 2-4 Gain: Proceed as described above for bands 2, 3, and 4.

• Param EQ 2-4 Q: Proceed as described above for bands 2, 3, and 4.

page 10 User guide MX-8

• Limiter: Can be indivudually set for each output. By pushing the preset
knob, you can chose the output; turning the volume knob by one click,
you can turn the limiter either „on“ or „off“.

• By pushing the volume knob you return back to the parameter menu. In
case you have canged any parameters, you will be asked whether you
would like to save them.

4.2.3 Config

• Graph EQ Band 1: Set the frequency of the 1st band of the graphic
equalizer. The frequency value is set by turning the volume knob.

• Graph EQ Band 12: Set the frequency of the 12th band of the graphic
equalzer. A minimum distance of approximately 2 octaves needs to be
maintained between the 1st and 12st band. The unit will prevent a smaller
distance to be set.

• Monitor / VU Out: Selection of one of the 4 outputs for monitoring via
headphone. On the left side next to the display there is a headphone
connection that can be used for monitoring purposes. The output chosen
here is also the one corresponding to the VU meter in the display. By

turning the volume knob, you can chose the desired output.

• LCD contrast: Set the contrast of the LCD display from 0 to 50 for an
optimal readability.

• Vol/Preset protect: The protection of the settings is such that changes
(e. g. changing between presets or temporary volume changes) can only
be performed while pushing and turning the knobs at the same time. This
is intended to safeguard the settings from accidental changes. If this
protection is turned off, changes can be made by simply turning the
knobs without pushing them. Turning the volume knob by one click either
enables or disables the protection.

• Welcome screen Line 1: Set the first line (16 characters) of the
welcome text that shows up when powering up the unit. The cursor will
blink under the first character. By turning the volume knob, the following
letters, numbers, and special characters will appear in this order: A-Z, Ä,
Ö, Ü, a-z, ä, ö, ü, 0-9, space, ! „ # $ % & ’ ( ) * + , - . / Pushing the
preset knob will confirm the current character und move the cursor one
position to the right. Now you can set the next character.

• Welcome screen Line 2: Set the second line (16 characters) of the
welcome text that shows up when powering up the unit.

• Output 1 Name: Determine the name of the first output. 8 characters are
available for this name (e.g. nave, gallery, etc.)

• Output 2 Name

• Output 3 Name

• Output 4 Name

4.2.4 Service

• Firmware: Displays the current firmware version of the unit.

page 11 User guide MX-8

4.2.5 Quick reference: Table with all programmable parameters
Where is which parameter set?

The following table lists the parameter menu with its items and parameters:

Item

Parameter Description

Preset Preset name

Name of the preset

Preset master volume

Master volume of the preset

Preset output

Choice of active outputs

Parameters Level

Level of each output

Delay

Delay times for outputs 3 and 4

Graph. EQ [1st. frequency]

Level of 1st band of the graphic
equalizer; settable vor each
output

…

…

Graph. EQ [12st frequency]

Level of 12th band of the graphic
equalizer; settable for each output

Param. EQ 1 Freq

Frequency of the 1st parametric
equalizer; settable for each output

Param. EQ 1 Gain

Gain of the 1st parametric
equalizer; settable for each output

Param . EQ 1 Q

Q-factor of the 1st parametric
equalizer; settable for each output

… [same for the other
parametric equalizers]

Limiter on/off

Set limiter individually for each
output

Config. Graph EQ Band 1

Frequency of the 1st band of the
graphic equalizer

Graph EQ Band 12

Frequency of the 12th band of the
graphic equalizer

Monitor / VU Out

Select output for headphone
connection (monitoring) and VU
meter

LCD Contrast

Contrast of the LCD display

Vol/Preset Protect

Rotery encoder protection on/off

Welcomescreen Line 1

1st line of welcome screen

Welcomescreen Line 2

2nd line of welcome screen

Output 1 Name

Name of 1st output

Output 2 Name

Name of 2nd output

Output 3 Name

Name of 3rd output

Output 4 Name

Name of 4th output

Service Firmware

Firmware version

4.3 Internal modifications

B

EFORE OPENING THE UNIT, TURN IT OFF AND

REMOVE THE POWER CORD

.

O

NLY THEN REMOVE THE SIX SCREWS AN THE COVER

.

4.3.1 Phantom voltage, microphone/line, high-pass filter
These modifications are performed by means of jumpers. Within the MX-8,

there are two groups of jumpers for each of the four outputs.
The following image shows the upper group of 4 jumpers each per channel.

page 12 User guide MX-8

Their functions are indicated on the label. In order to realise the function on
the left, short the respective jumper.

• High-pass filters for each of the 4 microphone/line inputs, 40 Hz/ 100
Hz. For the use of microphones, the jumpers should be set to 100 Hz.
This high-pass (low-cut) filter reduces low-frequency vibrations and
compensates for the so-called proximity effect (the booming sound often
associated with close pick-up).

• Phantom power: +48 V. This function is very usful for e. g. condensor
microphones, as most of the latter require phantom power.

• Selection whether microphone or line input

4.3.2 Automatic threshold reduction, transmission matrix

The following image shows the second group of jumpers: 6 jumpers for each
of the four channels. (The numbers 1 through 6 denote the six
potentiometers for each channel. Their functions will be described in section

4.3.3)

• THD: low noise threshold, on/off. A noise gate, determining the response
sensitivity of the microphones, can be either enabled or disabled here.
(The threshold itself is adjusted with potentiometer no. 3, see section

4.3.3). Actually, this analog threshold is quite redundant, as this the
response sensitivity is controlled in a much more precise fashion by the
automatic processor.

• Automatic threshold reduction by the processor when using multiple
microphones, on/off: In order to achieve a maximum gain-before
feedback and signal quality, only those microphones are activated that
receive an actual (intended) signal. In parallel, there is an automatic gain
adjustment as additional microphones are activated. This automatic can
be either enabled or disabled by this jumper.

page 13 User guide MX-8

• Selection for each of the four inputs to which outputs (OUT 1 through
OUT 4) they are to be transmitted. By default, each of the inputs are set

to all four outputs.

4.3.3 3-band equalizer, compressor/limiter, gain, threshold
The six potentiometers for each channel have the following functions

1. Compressor/limiter: The output limiters prevent distortion during loud

peaks. All signals below the set threshold are not affected whereas those
above are compressed. This keeps the devices connected to the MX-8
from becoming overloaded and prevents distortion and clipping.

2. Gain: Adjusts the amplification of the channel to the level of the input

signal.

3. Threshold control: Adjusts the response sensitivity of the microphone.

The here adjusted threshold can be disabled if necessary by a jumper
(see THD in section 4.3.2).

4. High frequencies: 3-Band equalzer for an optimal adaption of the

microphone to the speaker; ± 12 dB at 10 kHz

5. Mid frequencies: ± 12 dB at 100 Hz

6. Low frequencies: ± 12 dB at 70 Hz

4.3.4 Microprocessor Gate Control

• Continous level monitoring of 8 input channels by RISC microprocessor

• Level compare accuracy better than ±2 dB

• Channel on attack time less than 10 ms

• Channel on hold time 256 ms (default) / 512 ms, selectable via switch

• Last On (default) / Channel 1 On, selectable via switch, hysteresis 6 dB

• Simultaneous active channels: none (default) / 3+4 selectable via switch

1
2
3

4
5
6

page 14 User guide MX-8

Switch 1 Hold time

Off 256 ms
On 512 ms

Switch 2 Active channel

Off Last channel
On Channel 1

5 Specifications

DSP structure

• 4 channels with completely independent 24 bit / 96 kHz digital audio processing output
levels

Output level and master volume

• Independent setting of output level for each channel: +12 to -∞ dB (very good resolution
with precise 0.5 dB increments from +12 to -20 dB)

• Common setting for overall output level (master volume): +10 to -0 dB (precise 0.5 dB
increments from -10 to -20dB)

Delay

• For channels 3 and 4

• Delay: 0 to 680 ms (0 to 233 meters). Settings: in meters (1-meter increments, calibrated

to an acoustic velocity of 343 m/s, according to a room temperature of 20°C)

Variable graphic equalizer (VariGraph EQ)

• 48 bands (12 per output)

• VariGraph: frequencies for the bands 1 and 12 can be arbitrarily chosen (for each channel,

minimum spacing approx. 2 octaves), Q-factors as well as all intermediate bands are
automatically calculated accordingly (allows for an optimal adaption of the equalizer to
each application)

Fully parametric equalizer

• 16 bands (4 per channel)

• Frequency: 20 Hz to 20.45 kHz (each band), very good resolution of 96 steps per octave

• Gain: +18 to -44 dB (each band), fine 0.5 dB steps from +18 to -20 dB

• Q-factor: 0.2 to 100 (logarithmic scaling 0.2, 0.22, 0.25, 0.28, 0.32, etc.), this permits

extremely narrowband notch filters for feedback elimination without loss of sound quality

Switch 3 Switch 4 Active channels

Off Off None
On On Channel 3+4

page 15 User guide MX-8

Limiter

• Can be enabled separately for each channel, reliably protects the sound system from
sudden, unexpected increases in signal level that can lead to amplifier clipping or loud­speaker damage

Preset (set of programmable parameters)

• Available number of presets: 20

• Preset parameters: master volume, output on/off, preset name

VU meter and master volume indicator

• VU meter for one channel (freely selectable), headphone connection (for monitoring)
renders the selected channel

• VU meter range: 0 to -50 dB, 14 bars (0 dB corresponds to the peak output level of the
DSP output)

• Volume bar: renders graphic representation of the master volume

User Interface

• Display: 2 lines of 20 characters each, user input via two rotary encoders with integrated
pushbuttons

• All settings are adjusted directly on the instrument by menu-driven user guidance (i.e.
without external PC or laptop)

• Separate parameter domain (EQs, delays, etc.) and user domain (master volume, preset,
channel on/off)

• The parameter domain is safeguarded against unauthorised access, the safety
mechanism works without a password (eliminates the problem of forgotten passwords)

• The user domain can be protected against accidental change of settings

• Freely definable welcome message upon power-up (2 lines of 16 characters each)

• For each channel a name can be freely defined (up to 7 characters) which appears in all

relevant menus on the display

DSP internals

• ADC / DAC resolution and sampling rate: 24 bit, 96 kHz

• DSP internal accuracy: 48 bit, entire data path

• DSP audio clock frequency: 96 kHz, entire data path (thus, EQs are very precise at high

frequencies)

• DSP internal overload reserve: 48 dB (renders a DSP internal overload in conventional
applications virtually impossible)

Line

• Maximum level: 100 mV (max. gain), 3 V (min. gain)

• Gain: 8 mV (-40 dBu) / 430 mV (-5 dBu)

Microphone

• Maximum level: 2.5 mV (max. gain), 200 mV (min. gain)

• Input impedance: 0.6 mV (-62 dBu) / 45 mV (-25 dBu) ±1 dB

• CMMR: > 60 dB at 1 kHz

• THD level: 10 dB

• Hi-pass-filter: 100 Hz, 6 dB/oct

• Phantom power: + 48 V

Tape/CD

• Impedance tape: 16 kΩ

• Impedance CD: 28 kΩ

• Input sensitivity tape: -12 dBu

• Input sensitivity CD: -7 dB

Outputs

• Output impedance OUT 1, 2, 3, 4: 140 Ω balanced; 70 Ω unbalanced

• Output level Out 1, 2, 3, 4: 0 dBu (with master volume at 82 %)

• Output level OUT 1, 2, 3, 4: +9 dBu (with master volume at 100 %)

• Output impedance Direct-OUT: 140 Ω balanced; 70 Ω unbalanced

• Output level Direct-OUT: +6 dBu (variable potentiometer)

page 16 User guide MX-8

• Output impedance REC: 70 Ω unsymmetrisch

• Output level REC: 0 dBu

Linking multiple mixers:

• Impedace Link IN: 10 kΩ unbalanced

• Input sensitivity: -6 dBu

• Output impedance Link OUT: 100 Ω unbalanced

• Output sensitivity: -6 dBu

Headphones

• Impedance headphones: stereo 8 Ω / 32 Ω / 100 Ω / 600 Ω

• Output power headphones: 150 mW / 180 mW / 85 mW / 20 mW

Processor

• Hold time: 8 ms / 256 ms / 512 ms / 768 ms (settable with internal dip-switch)

• Pegelunterschied: 0 dB / 3 dB / 6 dB / 10 dB (settable with internal dip-switch)

3-band equalizer

• High-frequency: ±12 dB at 10 kHz

• Mid-frequency: ±12 dB at 700 Hz

• Low-frequency: ±12 dB at 70 Hz

Frequency response

• -3 dB for CD: 50 Hz – 20 kHz

• -3 dB for microphone: 100 Hz – 16 kHz

Noise

• Noise level Direct-OUT, loaded, 20 Hz – 20 kHz, potentiometer at 0: -97 dBu

• Noise level OUT 1, loaded, 20 Hz – 20 KHz, master volume at 0: -92 dBu

• Noise level OUT 1, loaded, 20 Hz – 20 kHz, master volume at 82 %: -88 dBu

General

• Operating voltage: 230 V~, 50-60 Hz

• Power consumption: 30 W

• Overall dimensions: B x T x H = 483 mm W x 208 mm D x 44 mm H

• Mountable in 19“ rack

• Net weight: approx. 4 kg