Instrukcja obsługi Genelec 8250A

Genelec głośnik 8250A

Przeczytaj poniżej 📖 instrukcję obsługi w języku polskim dla Genelec 8250A (12 stron) w kategorii głośnik. Ta instrukcja była pomocna dla 2 osób i została oceniona przez 2 użytkowników na średnio 4.5 gwiazdek

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8260A, 8250A and 8240A
DSP Loudspeakers
Operating Manual
2
Introduction
Congratulations and a thank-you for the purchase of this Genel-
ec 8200 Series DSP Loudspeaker. These systems are designed
to integrate easily into the digital production environment. There
are several ways to configure and operate the DSP loudspeakers
for a wide variety of high quality audio applications. The loud-
speakers also have analog inputs, making them versatile and
intelligent replacements for analog loudspeakers.
This manual addresses setting up and using the 8240A, 8250A
and 8260A DSP loudspeakers in stand-alone mode without the
Genelec Loudspeaker Manager GLM™ and the proprietary
Genelec loudspeaker control network. Use with the GLM™ is
described in the DSP System Operating Manual.
EC Declaration Of Conformity
This is to certify that Genelec 8240A, 8250A and 8260A DSP
loudspeakers conform to the following standards:
Safety: EN 60065:2002 + A1:2006 + A11:2008 / IEC 60065:
2001 7th Edition
EMC: EN 55020: 2007 EN 55013: 2001 + A1: 2003, EN 61000-3-
2: 2006 and EN 61000-3-3: 1995 + A1: 2001 + A2: 2005
The products herewith comply with the requirements of The Low
Voltage Directive 2006/95/EC EMC Directive 2004/103/EC and
Energy related Products Directive 2009/125/EC.
Signed:
Ilpo Martikainen
Position: Chairman of the Board
Date: 23-February-2011
Compliance to FCC Rules
This device complies with part 15 of the FCC Rules. Operation is
subject to the following two conditions:
•  This device may not cause harmful interference, and
•  This device must accept any interference received, including
interference that may cause undesired operation.
Note: This equipment has been tested and found to comply with the
limits for a Class B digital device, pursuant to part 15 of the FCC
Rules. These limits are designed to provide reasonable protection
against harmful interference in a residential installation. This equip-
ment generates, uses and can radiate radio frequency energy and,
if not installed and used in accordance with the instructions, may
cause harmful interference to radio communications. However,
there is no guarantee that interference will not occur in a particular
installation. If this equipment does cause harmful interference to
radio or television reception, which can be determined by turning
the equipment off and on, the user is encouraged to try to correct
the interference by one or more of the following measures:
•  Reorient or relocate the receiving antenna.
•  Increase the separation between the equipment and
receiver.
•  Connect the equipment into an outlet on a circuit different
from that to which the receiver is connected.
•  Consult the dealer or an experienced radio/TV technician
for help.
Modifications not expressly approved by the manufacturer could
void the user’s authority to operate the equipment under FCC
rules.
Safety Considerations
Although the 8240A, 8250A and 8260A have been designed in
accordance with international safety standards, to ensure safe
operation and to maintain the loudspeaker under safe operat-
ing conditions, the following warnings and precautions must be
observed:
•  Servicing and adjustment must only be performed by
qualified service personnel. The loudspeaker enclosure
must not be opened.
•  Do not use this product with an unearthed mains cable or
a mains connection without the protective earth contact as
this may lead to personal injury.
•  To prevent fire or electric shock, do not expose the unit to
water or moisture.
•  Do not place any objects filled with liquid, such as vases on
the loudspeaker or near it.
•  Note that the amplifier is not completely disconnected
from the AC mains service unless the mains power cord is
removed from the amplifier or the mains outlet.
•  Free flow of air behind the loudspeaker is necessary to
maintain sufficient cooling.
•  Do not obstruct airflow around the loudspeakers.
WARNING!
All Genelec 8200 Series loudspeakers are capable of produc-
ing sound pressure levels in excess of 85 dB, which may cause
permanent hearing damage.
System
Genelec 8240A, 8250A and 8260A DSP Loudspeakers are de-
signed for precise monitoring of 24 bit/192 kHz AES/EBU digi-
tal audio signal or line level analog audio signal. They are fully
compatible with Genelec Loudspeaker Manager GLM™ and the
proprietary Genelec loudspeaker control network, and Genelec
7260A, 7270A and 7271A DSP Active Subwoofers, but can also
be used independently of these. The 8240A, 8250A and 8260A
3
feature high SPL output, low colouration and broad bandwidth
in a small enclosure size. They are suitable for a wide variety
of tasks, such as near field monitoring, mobile vans, broadcast
and TV control rooms, surround sound systems and home stu-
dios. The Minimum Diffraction Enclosure™ (MDE™), advanced
Directivity Control Waveguide™ (DCW™) and Minimum Diffrac-
tion Coaxial (MDC™) technologies provide excellent frequency
balance even in difficult acoustic environments.
Amplifiers
The amplifier unit is mounted in the rear of the loudspeaker en-
closure. The unit incorporates special circuitry for driver thermal
overload protection. Variable input sensitivity allows accurate
level matching to console output section.
Using the Loudspeakers in Stand-Alone
Mode
The 8240A, 8250A and 8260A accept both analogue line level
input signals and AES/EBU formatted digital input signals.
When the loudspeakers are not connected to Genelec loud-
speaker control network, they operate in the stand-alone mode.
However, settings made with the Genelec Loudspeaker Manager
software can be saved into each loudspeaker and applied even
when the network is disconnected by setting switch 1 “STORED/
MANUAL CONTROL” on switch group 2 of each loudspeaker to
position “STORED.”
This manual concentrates on using the loudspeakers without the
control network. All issues concerning use with the network are
explained in detail in the System Operating Manual provided with
the GLM™ Loudspeaker Manager software kit.
Connections
Each loudspeaker is supplied with a mains cable, one 5 m GLM
network cable and an operating manual. Before connecting up,
ensure that the mains switch is off.
“MAINS INPUT” Connector
Connect the mains supply to this connector.
“DIGITAL IN AES/EBU” Connector
Use this female XLR connector for AES/EBU formatted digital
audio input signals. This input is selected automatically when a
valid digital audio signal is present, and overrides the analogue
input.
Depending on the digital hardware, transmission of a 192 kHz
sample rate is achieved using a double speed, single channel/
cable interface. This is called dual-wire mode. In this case one
cable per channel is used and no channel selection is required.
Dual-wire mode is automatically detected by the input stage.
If the digital source device has a digital level monitor pot or
graphical volume fader that controls the digital level, it may be
advantageous to lower the level control either on the computer
interface or the loudspeaker’s back panel controls, which in turn
will force the use of more of the digital [bit] resolution in the vol-
ume control.
If the digital inputs are used, all audio outputs are referenced
to 0 dBFS (digital Full Scale, the largest level that may be rep-
resented in the AES/EBU signal). Genelec DSP loudspeakers
produce 100 dB SPL at 1 meter in free space for a digital input
signal of –30 dB FS. It is advantageous to keep the digital level
as high as possible.
Figure 1. Connectors and controls on the back panel of a 8260A. 8240A and 8250A share the same layout but without the
12 V trigger voltage connector.

Specyfikacje produktu

Marka: Genelec
Kategoria: głośnik
Model: 8250A

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