AEV Xtreme II Bedienungsanleitung
AEV Xtreme II Digital Audio Processor
AEV Broadcast Srl – via della Tecnica 33 – 40050 Argelato (BO) Italy
1
AEV Xtreme II
Digital Broadcast Audio Processor
AEV Xtreme II Digital Audio Processor
AEV Broadcast Srl – via della Tecnica 33 – 40050 Argelato (BO) Italy
2
Guarantee
The equipment is warranted for a period of 2 years from the date of invoice (ex-works). The
warranty does not cover faults provoked y carelessness, natural causes and parts su ject
to wear. In addition, the cost of shipment is not covered. The warranty will e voided if the
equipment is mishandled.
Technical Support
If you require technical support, contact AEV SERVICE giving a clear and concise account of
your speciic pro lem. Quote the serial num er of your equipment y referring to the AEV
nameplate attached to the equipment itself as this is the most important piece of information
to e provided.
Telephone: 39+051 892963 Fax: 39+051 893605
Factory Service and Repairs
If pro lems arise while the equipment is eing installed, consult this manual and check that
the installation is eing carried out properly. If the pro lems still cannot e solved, call the AEV
SERVICE Department for further information. If the pro lem is a minor one we can a telephone
call will pro a ly sufice. If, on the other hand, the equipment is to e shipped to AEV for
service or repairs.
Shipping Instruction
When shipping the equipment to AEV, use the original package in order to e certain that it will
e fully protected during handling. If you need the original package, call us for a new one.
If you ship the equipment in a different packing container, take care to provide a dou le
package y interposing padding material etween the two containers in order to fully protect
the equipment during shipment. The package should e marked “FRAGILE” in red.
IMPORTANT: Carefully read this paragraph as it contains important instructions concerning
operator safety and directions regarding the installation, operation and maintenance of the
equipment.
Failure to o serve the safety instructions and information given in this manual constitutes an
infringement of the safety rules and design specifications provided for this piece of
equipment.
Futurcom Srl declines all responsibility if any one of the safety rules given herein is not
o served.
Futurcom Srl declines all responsibility if the end-user resells the product.
The equipment is to e used y people capa le of operating it in a trou le-free manner and it is
assumed that they are aware of the following safety rules.
• Keep this manual with the utmost care and close at hand so that it can e consulted whenever
needed
• After unpacking the equipment, check it for condition.
• Avoid anging the equipment.
• The packing material (plastic ags, polystyrene, nails, etc.) must never e left within the reach of
the children, as these items are potential sources of danger.
• Do not use the equipment in places where the temperature is not within the recommended
range, as speciied y the manufacturer.
• Before connecting the equipment, make sure the nameplate specifications correspond to the
mains electricity supply (the nameplate is located on the equipment enclosure).
• Do not remove the sticker from the equipment as it contains important specifications and the
relevant serial num er.
• To join the equipment to the mains supply, use the power cord purchased with the equipment.
• The equipment must e used only for the purpose it was designed for.
• A use or misuse of the equipment is extremely dangerous for people, pets and property. The
manufacturer declines all responsi ility for damage and injury resulting from improper use and
mishandling.
• Certain asic safety rules must e o served when using electrical equipment, in particular: -
Never touch the equipment with wet and/or damp hands or other parts of the ody.
AEV Xtreme II Digital Audio Processor
AEV Broadcast Srl – via della Tecnica 33 – 40050 Argelato (BO) Italy
3
- Keep the equipment away from drops of water or sprinkling systems.
- Never use the equipment near high heat sources or explosive material.
- Do not introduce any extraneous matter into the equipment.
- Do not allow children or untrained people to use the equipment.
• Before cleaning or servicing the equipment outside, disconnect it from the supply and wait at
least 2 seconds efore working on it, as recommended y current safety regulations.
• In the event of faults and/or improper operation, turn off the equipment, shut off the electrical
power and call your dealer.
• Do not attempt to make repairs and/or adjustments when covers/guards or circuit oards are to
e removed.
• Blown fuses inside the power supply indicate that there may e a fault in the power supply itself.
The fuses must e replaced y qualiied and authorised persons. It is advisa le to call your nearest
dealer.
• Call your dealer for any repairs and e certain original spare parts are used.
Failure to observe this rule may adversely affect the safety level of your equipment.
• The equipment is to e connected to the mains supply and provided with adequate and eficient
earth conductors.
• The electrical wiring must e done in compliance with current electrical codes CEI 64-8 “Electrical
speciication for domestic uildings”.
• When installing, leave a clearance of at least 1 cm around the equipment to
allow air to pass freely.
NOTE. This piece of equipment has been manufactured to the highest standards of
wor manship. It must be used properly and serviced as recommended to ensure long-
term dependable operation.
The installation must e done in order to e a le to guarantee an easy access to the ca le of
feeding.
The device of dissection of the equipment is the ca le of feeding, so it must e unconnected from
the equipment every time it is necessary to do any type of maintenance.
AEV Xtreme II Digital Audio Processor
AEV Broadcast Srl – via della Tecnica 33 – 40050 Argelato (BO) Italy
4
Contents
PRECAUTIONS.......................................................... 2
Contenents .......................................................... 4
Sec. 1 The Xtreme audio processor ................................... 5
Sec. 1-1 Full control of peak modulation ............................ 5
Sec. 1-2 Programmability ............................................ 5
Sec. 1-3 Input/output configurations ................................ 5
Sec. 1-4-1 Analogue inputs/outputs .................................. 5
Sec. 1-4-2 Digital inputs/outputs ................................... 5
Sec. 1-4-3 MPX outputs............................................... 5
Sec. 1-4-4 RDS input (optional) .................................... 5
Sec. 1-4-5 SCA input................................................ 5
Sec. 1-4-6 RDS output (optional) ................................... 5
Sec. 2 Positioning and initial pre-set of Xtreme II ................. 6
Sec. 2-1 Xtreme’s best position .................................... 6
Sec. 2-2 At first power-up ......................................... 6
Sec. 3 Input/Output connections .................................... 6
Sec. 3-4 Remote control ............................................ 5
Sec. 4 Xtreme start-up ............................................. 6
Sec. 4-1 Pre-enphasis .................... ......................... 8
Sec. 4-2 Adjusting the input level................................... 9
Sec. 4-3 Adjusting MPX coder parameters ............................ 10
Sec. 4-4 System menu options ....................................... 11
Sec. 4-4-1 Setting date and time.................................... 12
Sec. 4-4-2 Adjusting the display contrast........................... 12
Sec. 4-4-3 Lamp Timeout ............................................ 12
Sec. 4-4-4 Operate / ByPass ........................................ 12
Sec. 5 Edit Preset men.............................................. 13
Sec. 5-1 BRILLIANCE ................................................ 13
Sec. 5-2 HF CLIPPING................................................ 13
Sec. 5-3 PRESENCE .................................................. 13
Sec. 5-4 MID BASS BOOST ............................................ 13
Sec. 5-5 LOW BASS BOOST ............................................ 13
Sec. 5-6 BASS MATCHING ............................................. 13
Sec. 5-7 30Hz Hpf Filter ........................................... 14
Sec. 5-8 Voice Bass Boost ...........................................14
Sec. 5-9 Gate Threshold .............................................14
Sec. 5-10 AGC On Off ................................................14
Sec. 5-11 AGC Drive ................................................ 14
Sec. 5-12 AGC Release .............................................. 14
Sec. 5-13 Multi Band Drive ..........................................14
Sec. 5-14 Multi Band Release ....................................... 14
Sec. 5-15 Multi Band Clip .......................................... 14
Sec. 5-16 Final Clip Drive ......................................... 14
Sec. 5-17 Downward Expander ........................................ 15
Sec. 6 System Update................................................ 15
Sec. 7 Connection .................................................. 16
Sec. 7-1 Connection PC - RS232...................................... 16
Sec. 7-2 Sample connection Remote RDS .............................. 17
Sez. 7-3 Sample connection Remote................................... 17
Sez. 7-4 Sample connection Analog & AES/EBU ........................ 18
Sec. 8 Technical Data .............................................. 18
AEV Xtreme II Digital Audio Processor
AEV Broadcast Srl – via della Tecnica 33 – 40050 Argelato (BO) Italy
5
Sec. 1 The Xtreme audio processor
The Audio Xtreme II processor is a complete audio signal processing system for AM, FM and TV transmissions.
The sound quality defines the station’s image and professionalism. The importance of the AUDIO PROCESSOR
is therefore clear. The wholly digital technology with which Xtreme II was built means that the results obtained
can IN NO WAY BE COMPARED with those of any other traditional processor.
The multi-band structure is the best way to process an audio signal; Xtreme II is based on five-band processing
of the audio signal, with a storage capacity equal to 82 different equalization curves, 64 of them editable.
Every curve has the facility for integral control of process parameters to give your station a competitive sound,
with extra power, continuity, presence and clarity, without “pumping” or other unnatural effects.
All of Xtreme II’s adjustments and operational sequences are distinctly shown on a high resolution LCD graphic
display and are facilitated by a guided menu showing the enabled functions at every programming step.
The equalization and compression curve trends are shown on the display, which graphically reproduces the
spectral distribution of the processed signal over 5 bars.
Sec. 1-1 Full control of peak modulation
Xtreme II provides full control of AM, FM and TV audio signal transmission levels and can interface with any
transmitter habitually used in any part of the world.
Xtreme II performs a high-precision peak control, restricting over-modulation level to just 0.3 dB !
The Xtreme II audio processor dynamically controls the pre-boost level, it can never be heard to operate, and
produces a clear, open, brilliant sound which improves the original program.
Xtreme II’s audio processing circuits produce a signal which is pre-boosted with 50 µs or 75 µs curves and is
controlled precisely and absolutely in order to avoid over-modulation; the signal is then filtered to protect the pilot
tone at 19 KHz. If the 2-channel signal output by the processor is inserted in an external stereo encoder, we
advise you not to place any element between the two appliances that could alter band width and enlarge
modulation peaks beyond average modulation levels. Otherwise, modulation level must be reduced to control the
highest peaks.
Low-pass filters, high-pass filters, transformers, distribution amplifiers, and long transmission lines, can all cause
the signal to alter. We advise you to by-pass any low-pass filter and pre-booster circuits present on normal stereo
coders; we should stress that these measures have already been adopted inside the processor.
Obviously the above criteria for optimal control of peak modulation levels can be satisfied more easily if the audio
processor uses the internal stereo encoder. In Xtreme, there are no circuit elements between the audio processor
and the internal stereo encoder that could cause wave shape distortions. We therefore advise you to use Xtreme
with its own builtin encoder whenever feasible.
Sec. 1-2 Programmability
Xtreme II is supplied with 18 program-resident equalisation curves; they help the user understand the
programming process. The remaining 64 curves are at the user’s disposal.
For specific programming operations, see the appropriate paragraph.
All programming operations can easily be directly retrieved by the operator, by using the “Jog” knob or by using
the “Planning” programming at exactly specified times.
Sec. 1-3 Input/output configurations
Xtreme II was designed to house the following simultaneously:
1. left/right analogue inputs and outputs
2. Standard AES EBU digital inputs and outputs
3. 2 composite stereo outputs (for FM version)
4. RDS input (if RDS coder option is not installed)
5. SCA input (for FM version)
6. RDS output (if RDS coder option is installed)
AEV Xtreme II Digital Audio Processor
AEV Broadcast Srl – via della Tecnica 33 – 40050 Argelato (BO) Italy
6
Sec. 1-4-1 Analogue inputs/outputs
The analogue inputs are installed on two XLR female connectors, located on the rear panel. The input is ≥10
KΩ high impedance, and the inputs accept signals up to +12dBu. The analogue outputs are provided with two
XLR male connectors, located on the rear panel. The outputs can pilot loads of ≥10 KΩ.
Sec. 1-4-2 Digital inputs/outputs
The digital input is provided with an XLR female connector, located on the rear panel. Balanced input with a 110Ω
impedance. The digital output is provided with an XLR male connector, located on the rear panel. Impedance, as
for the input, is 110 Ω.
Sec. 1-4-3 MPX outputs
The stereo coder (optional) has two outputs on a non-balanced BNC connector, located on the rear panel. Each
outputcan be connected via a cable with maximum length of 3 mt, before any signal deterioration occurs.
The levels of the outputsare controlled by the “Jog” on the front panel.
Sec. 1-4-4 RDS input (optional)
The RDS input is active in the FM version, if the RDS internal coder is not installed. It is provided with a BNC
connector, located on the rear panel, with 10 KΩ impedance.
Accepted levels range between 0 and -14dB.
Sec. 1-4-5 SCA input
A non-balanced BNC connector, for use with the SCA signal, is also available on the input. It can accept any type
≥ of 23 KHz subcarrier. The subcarrier is mixed with MPX signals. Accepted levels range between 0 and -14dB.
Sec. 1-4-6 RDS output (optional)
The RDS coder (optional) has an output on a non-balanced BNC connector, located on the rear panel. The output
level is fixed at 0dBu. It is also present on the MPX+RDS output with a level which can be adjusted from - infinite
to -17.5dB.
Sec. 2 Positioning and initial preset of Xtreme II
Sec. 2-1 Xtreme’s best position
Xtreme II’s best position is as close as possible to the transmitter, so that the stereo encoder output can be
connected to the transmitter via a route causing minimal variation to the wave shape of the MPX signal.
Xtreme II outputs can pilot a coder with cable length of up to 3 m before any appreciable degradation of the MPX
signal is noted.
If this is impossible, the best solution is either to: power up an external coder located close to the transmitter
energiser via Xtreme’s base band analogue output, or to use the digital output with an essentially flat frequency
response plus a constant wave train delay in the range 30 Hz to 15 KHz.
To ensure maximum transmission quality, all appliances downstream of the studio must be carefully aligned and
must satisfy the appropriate standards for wave width, distortion, wave train delay and gain stability.
These appliances must be re-checked at reasonable intervals.
It is therefore important that the sound source connected to Xtreme II has low noise at output, the flattest
possible requency response and low distortion.
Sec. 2-2 At first power-up
Before powering up Xtreme II, make sure that mains power matches the value shown on the rear of the power
supply and hat the electric system to which Xtreme II is connected, is supplied with a good grounding system.
AEV Xtreme II Digital Audio Processor
AEV Broadcast Srl – via della Tecnica 33 – 40050 Argelato (BO) Italy
7
The display may be difficult to understand at power-up, therefore, set the contrast level (see the appropriate
section)
Sec. 3 Input/Output connections
When connecting inputs/outputs, you are recommended to use a good quality, well shielded, soft cable.
0
0
Sec. 3-4 Remote control
Xtreme II can be remotely controlled via an RS-232 standard serial port – this enables you to control it via both
PC and modem.
A 15-pole connector is also available on the Xtreme II’s rear side to send on air 8 different presets simply by
means of a command of an external switch. For connection details, see section “Connections” at the end of the
manual Preset assignments occur by means of “TLC” menu.
Sec. 4 Xtreme start-up
To align Xtreme II with your system as the first operation, we advise you to recall one of the configurations preset
inside Xtreme II.
Starting from the initial menu “Home”, press Jog and enter the menu “Process”.
AEV Xtreme II Digital Audio Processor
AEV Broadcast Srl – via della Tecnica 33 – 40050 Argelato (BO) Italy
8
By pressing Jog, you can select “Recall Preset”, then choose one of the 18 preset curves
At the end of the selection, return to Home menu by means of the “Back” option.
AEV Xtreme II Digital Audio Processor
AEV Broadcast Srl – via della Tecnica 33 – 40050 Argelato (BO) Italy
9
Sec. 4-1 Pre-enphasis
Then select Pre-emphasis and choose Change option. By means of the Jog you can scroll the available options:
OFF, 50µS (European standard) and 75µS (USA standard).
At the end of the selection, return to Home initial menu.
Sec. 4-2 Adjusting the input level
Play a piece of music ( CD ) with good dynamics and a rich sound. Adjust the mixer to obtain 0dB indication on
the instruments. From now on, disable any equaliser from any mixer channel, with the exception of any
microphones only. Press Jog and select Input Preset.
AEV Xtreme II Digital Audio Processor
AEV Broadcast Srl – via della Tecnica 33 – 40050 Argelato (BO) Italy
10
Select Input Level and choose Change option.
Now, the graphic display of the input level is available. This can be amplified or reduced of 12 dBu. By means of
the Jog select a gain in order to have the processor operate around 0 dBm. At the end of the setting, return to
Home initial menu.
Sec. 4-3 Adjusting MPX coder parameters
May we remind you again that any other pre-enphasis on your transmission chain must be disabled as it is
generated by Xtreme II. Press Jog and select Encoder.
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