KEF Reference 204-2 Manual de Usario

KEF Vocero Reference 204-2

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OWNERS MANUAL

Model 201/2 Model 202/2c Model 203/2 Model 204/2c Model 205/2 Model 206/2ds Model 207/2

Thank you for purchasing KEF Reference Series

loudspeakers. These have been designed to

faithfully reproduce high quality sound over many

years of use and should provide realistic

reproduction of music and speech. Please take a

little time to read these instructions prior to use.

Your KEF Reference Loudspeakers are tall,

slim and extremely heavy. Installed correctly on

a smooth, level surface, your loudspeakers

should be entirely safe to listen to and to

live with.

However, if you have small children, large pets,

the infirm, uneven flooring or unusually thick

carpeting in your home, then correct adjustment

of the foot assemblies is imperative, if safe,

stable operation is to be achieved.

Warning: The metal tweeter dome now has

protective mesh at the centre of the Uni-Q®

driver array; if however this is compromised and

the dome itself is dented, it will permanently

impair performance.

1. Avoid temperature extremes.

2. Avoid damp.

3. Avoid direct sunlight.

4. Clean with the KEF cloth provided.

5. Do not use spirit based cleaners.

If you are at all uncertain about setting up, operating or caring for your system

your dealer will be pleased to assist you.

1. Read this manual carefully, especially the

safety information, before attempting to

assemble and operate the system.

2. Follow the unpacking and assembly

instructions on the cartons. Please note that

lifting the heavier Model 207/2 and Model

204/2c requires two able-bodied persons.

3. Never connect the system directly to the

electricity supply.

4. Trailing cables are dangerous. Ensure all

cables are secure and tidy.

5. When stripping cables use only tools

designed specifically for the purpose ie:

correct wire cutters or cable strippers.

Do not attempt to strip cables with a knife as

this could result in serious injury.

Important Safety Information

General Care of your System

1Part No.: 290201E

Issue 2: January 2007

2 3

Important Safety Information 1

General Care of Your System 1

Contents 3

Introduction 5

Overview of Common Features 6

Model 207/2 7

Model 205/2 7

Model 203/2 7

Model 201/2 8

Model 206/2ds 8

Model 202/2c 8

Model 204/2c 8

Installation and Operation 9

Unpacking, Handling and Aftercare 9

Adjusting the Feet and/or Spikes 10

Loudspeaker Placement and Room Acoustics 11

Loudspeaker Positioning 12

Amplifier to Loudspeaker Connections 14

Amplifier Requirements and Power Handling 14

Uni Balance Adjustment Models 201/2, 203/2, 205/2, 207/2, 206/2ds 15

Placement Adjustment Models 202/2c, 204/2c 17

Single, Bi and Tri-wire Connections 18

Loudspeaker Cables 23

Grilles 23

Warranty 23

Service Information 23

Specifications 24

KEF Heritage 29

Wrong

Adjustment

Caution/Warning

Positive/RED

Negative/BLACK

Switch off appliance

Option

Correct

Contents

Since its formation in 1961, KEF has pioneered

many innovations in loudspeaker technology and

design. Your new Reference Series loudspeakers

contain one of the latest of these advances -

the KEF ‘Project Austin’ Uni-Q driver array.

In this innovative KEF design, not only are the

mid and high-frequency drivers on the same axis

(co-axial), but their acoustic centres are also on

the same plane (co-planar). The profile of the

mid-frequency driver’s cone modifies the

directivity factor (or ‘Q’) of the high frequency

unit such that both drive units have the same

directivity in the critical crossover region,

where they are operating at similar frequencies.

This unification of the ‘Q’ of the drive units lies

behind the name “Uni-Q”.

Now incorporated in many KEF loudspeakers,

the Uni-Q driver array yields immediate and

readily audible sonic benefits. With no sharp

discontinuity in ‘Q’ at the crossover frequency,

correct tonal balance is not confined to a

single ‘sweet spot’ in the listening room and

is extended to cover a far broader area.

With sound arriving in phase, the sound source

is brought into the sharpest possible focus.

With properly recorded material and as part of

a good quality system, well set-up, loudspeakers

with KEF Uni-Q can reveal the location of each

musical voice in the stereo image with pin-point

accuracy and with a much smoother response

being maintained off-axis - where most people

listen - than before.

The latest Uni-Q array implemented in this

range is a sophisticated device offering a

combination of wider bandwidth and wider

dispersion than its predecessor.

Both the midrange and high frequency drivers

have been symbiotically designed to take us one

step closer to the ideal of a controlled directivity

point source acoustic radiating system.

The 165mm (6.5in.) midrange section has a

shallow ‘Uni-Form’ cone profile which gives

excellent midrange performance but also

provides the optimum waveguide for the

coincidentally mounted tweeter.

This new two piece 25mm (1in.) titanium dome

tweeter has been developed utilising Finite

Elements Analysis techniques to provide

‘pistonic’ motion to a much higher frequency,

eliminating the need for a separate

hyper-tweeter.

It also features a vented pole piece,

increasing the air space behind the dome

providing an extended but smooth high

frequency performance whilst retaining ultra

wide bandwidth source compatibility:

DVD-A/SACD.

Introduction

Especificaciones del producto

Marca:	KEF
Categoría:	Vocero
Modelo:	Reference 204-2
Color del producto:	Zwart
Peso del embalaje:	53600 g
Ancho del embalaje:	1814 mm
Empaquetadura en profundidad:	191 mm
Altura del embalaje:	1124 mm
Bluetooth:	Ja
Tipo de embalaje:	Doos
Apagado automático:	Ja
Diagonal de la pantalla:	75 "
Resolución:	7680 x 4320 Pixels
Relación de aspecto original:	16:9
Estándares wifi:	Wi-Fi 6E (802.11ax)
Versión Bluetooth:	5.2
Incluye sistema operativo:	Tizen
red LAN:	Ja
Cables suministrados:	AC
Forma de pantalla:	Flat
Brillo:	- cd/m²
Número de puertos USB 2.0:	3
Número de puertos HDMI:	4
Número de puertos Ethernet LAN (RJ-45):	1
Televisión inteligente:	Ja
Energía promedio:	90 W
Consumo de energía (en espera):	0.5 W
Soporte remoto para teléfonos inteligentes:	Ja
Tecnología de alto rango dinámico (HDR):	High Dynamic Range 10+ (HDR10 Plus), High Dynamic Range 10+ Adaptive (HDR10 Plus Adaptive), High Dynamic Range 10+ Gaming (HDR10 Plus Gaming), Hybrid Log-Gamma (HLG), Neo Quantum HDR 8K+
Soporte HDR:	Ja
tipo HD:	8K Ultra HD
Versión HDMI:	2.1
Tecnología de visualización:	Neo QLED
Montaje VESA:	Ja
Interfaz de montaje en panel:	400 x 400 mm
Pantalla antirreflejos:	Ja
Imagen en imagen:	Ja
Profundidad (sin base):	13.1 mm
Altura (sin base):	940.8 mm
Ancho (sin base):	1655.2 mm
Peso (sin base):	30800 g
Diámetro de la pantalla en centímetros.:	163 cm
Entrada de PC (D-Sub):	Nee
Audio digital, salida óptica.:	1
Interfaz común Plus (CI+):	Ja
Versión Common Interface Plus (CI+):	1.4
tipo de sintonizador:	Analoog & digitaal
Formato de señal digital:	DVB-T2 HD
televisión por internet:	Ja
Cambio de hora:	Ja
Televisión híbrida de banda ancha (HbbTV):	Ja
Aplicaciones de vídeo:	Samsung TV Plus
Funciona con Amazon Alexa:	Ja
Decodificadores de audio incorporados:	Dolby Atmos
Canal de retorno de audio mejorado (eARC):	Ja
Consumo de energía (HDR) por 1000 horas:	408 kWu
Clase de eficiencia energética (SDR):	G
Consumo de energía (DEG) por 1000 horas:	137 kWu
Clase de eficiencia energética (HDR):	G
navegador web:	Ja
Ancho del dispositivo (con soporte):	1655.2 mm
Dispositivo de profundidad (con soporte):	283.8 mm
Altura del dispositivo (con soporte):	1018.5 mm
Peso (con soporte):	40400 g
soporte de escritorio:	Ja
AMD FreeSync:	Ja
Tecnología de procesamiento de imágenes:	Samsung Real Depth Enhancer Pro
subwoofer incorporado:	Ja
Teletexto:	Ja
Versión híbrida de televisión de banda ancha (HbbTV):	2.0.3
guía de televisión electrónica:	Ja
Visualización en pantalla (OSD):	Ja
Canal de retorno de audio (ARC):	Ja
Control de electrónica de consumo (CEC):	Anynet+
Interfaz común (CI):	Ja
Número de puertos RF:	3
Frecuencia de actualización nativa:	100 Hz
Tecnología de interpolación de movimiento:	Motion Xcelerator
Búsqueda automática de canales:	Ja
Modo de juego:	Ja
grabación USB:	Ja
Modos inteligentes:	Filmmaker, Game, Movie
Función de subtítulos:	Ja
Frecuencias de actualización de pantalla admitidas:	240 Hz
Ancho del soporte:	370 mm
Profundidad del soporte:	283.8 mm
Diseño sin marco:	Ja
Canales de salida de audio:	6.2.4 kanalen
Duplicar pantalla:	Ja
Duplicación de sonido:	Ja
Sonido adaptativo:	Ja
Color del soporte:	Zwart
Tipo AMD FreeSync:	FreeSync Premium Pro
guía universal:	Ja
Tipo estándar:	Aangesloten standaard
Detección de brillo:	Ja
Imagen adaptativa:	Ja
ConectarCompartir (USB):	Ja
Funciona con Samsung Bixby:	Ja
ConectarCompartir (HDD):	Ja
Mando a distancia incluido:	Ja
Wifi.:	Ja
voltaje-de-entrada-de-CA:	220-240 V
Frecuencia-de-entrada-de-CA:	50/60 Hz
Consumo de energía (típico):	137 W
Funciona con el Asistente de Google:	Ja
Escala de eficiencia energética:	A tot G
Características del juego:	Auto Low Latency Mode (ALLM), Dynamic Black EQ, Game Bar, Game Motion Plus, Gaming Hub, HGiG, Mini Map Zoom, Super Ultra Wide Game View, Surround Sound, Variable Refresh Rate (VRR)
Tipo de borde de pantalla:	4 zonder rand
Modo ambiente:	Ambient Mode+
Interacción con tallos de campo lejano:	Ja
Sala múltiple:	Ja
Año de introducción:	2024
soporte IPv6:	Ja
Amplificador de voz activa / Amplificador de voz activa (AVA):	Ja
Soporte de la aplicación SmartThings:	Ja
Toque Ver:	Ja
Elemento descriptivo de preselección de audio:	Ja
Sensor ecológico:	Ja
Tecnología de audio multisala:	Samsung Multiroom Link
La televisión inicia la duplicación:	Ja
IA de lujo:	Ja
Soporte de tecla de TV (clave):	Ja
Vista-múltiple:	Ja
Tecnologías Samsung (AV/TV):	Adaptive Sound Pro, Neo Quantum HDR, Neo Quantum HDR 8K PRO, Neural Quantum Processor 8K, Q-Symphony, Quantum Matrix Technology Pro, Ultimate 8K Dimming Pro, Ultra Viewing Angle