Genelec 8250A Handleiding

Genelec Speaker 8250A

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8260A, 8250A and 8240A

DSP Loudspeakers

Operating Manual

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

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.

Product specificaties

Merk:	Genelec
Categorie:	Speaker
Model:	8250A
Kleur van het product:	Zwart
Gewicht:	14600 g
Breedte:	286 mm
Diepte:	278 mm
Hoogte:	452 mm
LED-indicatoren:	Ja
Connectiviteitstechnologie:	Bedraad
Ethernet LAN:	Ja
Gemiddeld vermogen:	270 W
Equalizer-instellingen:	Nee
Aanbevolen gebruik:	Universeel
Impedantie:	- Ohm
Geschikt voor buitengebruik:	Nee
Audio-uitgangskanalen:	1.0 kanalen
Speaker plaatsing:	Vloer
Aantal drivers:	2
Woofer:	Ja
Frequentiebereik:	32 - 23000 Hz
Gevoeligheid:	110 dB
Luidspreker soort:	2-weg
Diameter woofer:	8 "
Diameter hogetonenluidspreker:	1 "
XLR in:	Ja
Tweeter:	Ja
Crossover frequentie:	1800 Hz