EURORACK® MX802A
User’s Manual
Version 1.1 January 2001
ENGLISH
www.behringer.com
EURORACK MX802A
SAFETY INSTRUCTIONS
CAUTION: To reduce the risk of electric shock, do not remove the cover (or back). No user serviceable parts inside; refer servicing to qualified personnel.
WARNING: To reduce the risk of fire or electric shock, do not expose this appliance to rain or moisture.
This symbol, wherever it appears, alerts you to the presence of uninsulated dangerous voltage inside the enclosure - voltage that may be sufficient to constitute a risk of shock.
This symbol, wherever it appears, alerts you to important operating and maintenance instructions in the accompanying literature. Read the manual.
DETAILED SAFETY INSTRUCTIONS:
All the safety and operation instructions should be read before the appliance is operated.
Retain Instructions:
The safety and operating instructions should be retained for future reference.
Heed Warnings:
All warnings on the appliance and in the operating instructions should be adhered to.
Follow instructions:
All operation and user instructions should be followed.
Water and Moisture:
The appliance should not be used near water (e.g. near a bathtub, washbowl, kitchen sink, laundry tub, in a wet basement, or near a swimming pool etc.).
Ventilation:
The appliance should be situated so that its location or position does not interfere with its proper ventilation. For example, the appliance should not be situated on a bed, sofa rug, or similar surface that may block the ventilation openings, or placed in a built-in installation, such as a bookcase or cabinet that may impede the flow of air through the ventilation openings.
Heat:
The appliance should be situated away from heat sources such as radiators, heat registers, stoves, or other appliance (including amplifiers) that produce heat.
Power Source:
The appliance should be connected to a power supply only of the type described in the operating instructions or as marked on the appliance.
Grounding or Polarization:
Precautions should be taken so that the grounding or polarization means of an appliance is not defeated.
Power-Cord Protection:
Power supply cords should be routed so that they are not likely to be walked on or pinched by items placed upon or against them, paying particular attention to cords and plugs, convenience receptacles and the point where they exit from the appliance.
Cleaning:
The appliance should be cleaned only as recommended by the manufacturer.
Non-use Periods:
The power cord of the appliance should be unplugged from the outlet when left unused for a long period of time.
Object and Liquid Entry:
Care should be taken so that objects do not fall and liquids are not spilled into the enclosure through openings.
Damage Requiring Service:
The appliance should be serviced by qualified service personnel when:
-The power supply cord or the plug has been damaged; or
-Objects have fallen, or liquid has been spilled into the appliance; or
-The appliance has been exposed to rain; or
-The appliance does not appear to operate normally or exhibits a marked change in performance; or
-The appliance has been dropped, or the enclosure damaged.
Servicing:
The user should not attempt to service the appliance beyond that is described in the Operating Instructions. All other servicing should be referred to qualified service personnel.
2
EURORACK MX802A
FOREWORD
Dear Customer,
Welcome to the team of EURORACK users and thank you very much for expressing your confidence in BEHRINGER products by purchasing this unit.
It is one of my most pleasant tasks to write this letter to you, because it is the culmination of many months of hard work delivered by our engineering team to reach a very ambitious goal: To produce a compact mixer, which fully satisfies your and our expectations and delivers a superior sound quality, easy operation and technical specifications. In addition to that the mixer is affordable for almost every musician. The task to design the EURORACK MX1604A certainly meant a great deal of responsibility, which we assumed by focusing on you, the discerning user and musician. It also meant a lot of work and night shifts to accomplish this goal. But it was fun, too. Developing a product usually brings a lot of people together, and what a great feeling it is when everybody who participated in such a project can be proud of what we’ve achieved.
It is our philosophy to share our joy with you, because you are the most important member of the BEHRINGER family. With your highly competent suggestions for new products you’ve greatly contributed to shaping our company and making it successful. In return, we guarantee you uncompromising quality (manufactured under the ISO9000 certified management system) as well as excellent technical and audio properties at an extremely favorable price. All of this will enable you to fully unfold your creativity without being hampered by budget constraints.
We are often asked how we can make it to produce such high-grade devices at such unbelievably low prices. The answer is quite simple: it’s you, our customers! Many satisfied customers means large sales volumes enabling us to get better conditions of purchase for components, etc. Isn’t it only fair to pass this benefit back to you? Because we know that your success is our success, too!
I would like to thank all people whose help on “Project EURORACK MX802A” has made it all possible. Everybody has made very personal contributions, starting from the designers of the unit via the many staff members in my company to you, the user of BEHRINGER products.
My friends, it’s been worth the effort!
Thank you very much,
Uli Behringer
3
EURORACK MX802A
EURORACK®
Ultra-low noise 8-Channel Mic/Line Mixer
4 mono input channels with gold plated XLRs and balanced line inputs
Ultra-low noise discrete mic preamps with +48 V phantom power
2 stereo input channels with balanced TRS jacks
2 additional multifunctional stereo line inputs
Extremely high headroom – offering more dynamic range
Balanced inputs for highest signal integrity
Ultra-musical 3-band EQ on all channels
Peak LEDs and switchable low-cut filter on all mono channels
2 aux sends per channel for external effects and monitoring
Separate main mix, control room and headphone outputs
2-Track inputs assignable to main mix, control room / headphone outputs
Highly accurate 12 segment bargraph meters
High-quality sealed potentiometers
Rugged design power supply ensures superior signal integrity
State-of-the-art 4580 IC’s and high quality components ensure crystal-clear audio performance and excellent noise figures
Rugged construction ensures long life even under the most demanding conditions
Manufactured under ISO9000 certified management system
MX802A
4
EURORACK MX802A
TABLE OF CONTENTS
1. INTRODUCTION..................................................................................................................... |
6 |
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1.1 |
Architecture .................................................................................................................................... |
6 |
|
1.2 |
Before you begin ............................................................................................................................. |
6 |
|
|
1.2.1 PSU (power supply unit) ....................................................................................................... |
6 |
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|
1.2.2 |
Warranty ............................................................................................................................... |
7 |
|
1.2.3 |
Packing ................................................................................................................................ |
7 |
2. MONO INPUT CHANNEL ....................................................................................................... |
7 |
|
2.1 |
Input level setting ............................................................................................................................ |
7 |
2.2 |
Equalizer......................................................................................................................................... |
7 |
2.3 |
Aux sends ...................................................................................................................................... |
7 |
2.4 |
Fading and panning ......................................................................................................................... |
8 |
3. STEREO INPUT CHANNEL ................................................................................................... |
8 |
|
3.1 |
Input level setting ............................................................................................................................ |
8 |
3.2 |
Equalizer......................................................................................................................................... |
8 |
3.3 |
Aux sends ...................................................................................................................................... |
8 |
3.4 |
Volume control and panning/balancing ............................................................................................ |
8 |
4. MAIN SECTION ....................................................................................................................... |
8 |
|
4.1 |
Aux sends ...................................................................................................................................... |
8 |
4.2 |
Stereo aux returns ........................................................................................................................... |
9 |
4.3 |
Metering .......................................................................................................................................... |
9 |
4.4 |
2-track input / main mix output........................................................................................................ |
9 |
4.5 |
Monitoring ....................................................................................................................................... |
9 |
5. |
SETTING UP ......................................................................................................................... |
10 |
|
|
5.1 |
Desk normalization ....................................................................................................................... |
10 |
|
5.2 |
Selecting inputs ............................................................................................................................ |
10 |
|
5.3 |
Initializing channels for gain setting ............................................................................................... |
10 |
|
5.4 |
Auditioning a signal and setting up a channel ................................................................................. |
11 |
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5.5 |
Recording levels ............................................................................................................................. |
11 |
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5.6 |
Modification.................................................................................................................................... |
11 |
6. |
CONNECTIONS .................................................................................................................... |
12 |
|
7. |
APPENDIX ............................................................................................................................. |
13 |
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|
7.1 |
Specifications................................................................................................................................ |
13 |
7. |
APPENDIX ............................................................................................................................. |
14 |
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|
7.1 |
Front & back views........................................................................................................................ |
14 |
|
7.2 |
Block diagram ............................................................................................................................... |
15 |
|
7.3 |
Specifications................................................................................................................................ |
16 |
8. |
WARRANTY ........................................................................................................................... |
17 |
|
5
EURORACK MX802A
1. INTRODUCTION
Congratulations. In purchasing our EURORACK MX802A you have acquired a mixer whose small size belies its incredible versatility and superlative audio performance. Your EURORACK is built to the same outstanding quality as our top-of-the range console, the BEHRINGER EURODESK MX9000.
We recommend that you experiment with your EURORACK away from the pressures of a recording session or live concert, in order to get a feel for it. It is a musical instrument. Learn to play it well.
Next to the specifications in the appendix you will find pages with drawings showing the front and rear panels of your EURORACK. Keep them turned over, lying to the left of the text pages, while studying the manual. All functions are numbered consistently throughout the manual, whether in the text or on an illustration.
1.1 Architecture
Mono input channels
Channels 1 - 4 are mono, with a choice of balanced mic or l ine inputs. The vintage-style high-current discrete mic amps are of the same incredible quality as those found on the acclaimed BEHRINGER EURODESK MX9000, while a large external power supply ensures low noise and superior transient response at all times.
Stereo input channels
A further 4 line inputs are configured as 2 stereo input channels. These are ideal for accepting outputs from MIDI and other electronic instruments.
Channel outputs
A high-quality rotary potentiometer feeds the main mix via a constant-power channel pan potentiometer.
Aux Send
There are two aux send busses on the MX802A, aux 1 is pre-fader, aux 2 is post-fader (the channel’s volume control).
Stereo line inputs
There are two line-level stereo aux returns at the top of the output section. They can be used to return stereo effects or MIDI instruments etc.
In addition, a stereo tape input is provided, which may be routed to the main mix or the control room mix, giving the MX802A a total of 14 possible inputs during mixing. Channels 1 - 4 on the MX802A have overload LEDs, while the main mix output has 12-segment bargraph meters.
1.2 Before you begin
1.2.1 PSU (power supply unit)
Any amplifier circuit is limited in its transient response by the available current. Every mixer has numerous line level operational amplifiers (op-amps) inside. When being driven hard, many desks begin to show signs of stress due to power supply limitations. Not so with the EURORACK. The sound will always stay clean and crisp right up to the operating limits of the op-amps themselves, thanks to the generous 20 W external power supply unit.
Connect only the provided BEHRINGER power supply unit to the MX802A. Do not connect the PSU to the EURORACK while the PSU is connected to the mains supply. The correct starting sequence is: connect mixer and PSU and then connect the PSU to the mains.
Be sure that there is enough space around the unit for cooling and please do not place the MX802A on high temperature devices such as power amplifiers etc. to avoid overheating.
When switched on, parts of the desk and the power supply unit will become warm, this is normal during operation.
6 |
1. INTRODUCTION |
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