M-audio BX8 D2 User Manual [ru]

User Guide
English ( 3 – 7 )
Guía del usuario
Español ( 8 – 12 )
Guide d'utilisation
Français ( 13 – 17 )
Guida per l'uso
Benutzerhandbuch
Deutsch ( 23 – 27 )

User Guide (English)

Introduction

The BX8 D2 was designed and tested by veteran audio engineers to meet your needs in a studio monitoring environment. It is focused on the functional goal of delivering pure, original sound without any additional coloration. The BX8 D2 monitor is self-powered, directly accepting a line-level signal from a variety of sources.
The Studiophile BX8 D2 is designed to overcome all the limitations of conventional studio reference monitors within the digital audio environment. This system delivers a wide-range frequency response by employing two extraordinary drivers and unique crossover technology licensed by M-Audio. It boasts a stable and balanced low-mid frequency response along with a defined mid and high frequency response as well. Both drivers are magnetically shielded for desktop music production.
For pro engineers at commercial studios to home studio owners, the Studiophile BX8 D2 sets a new affordable standard in studio monitoring.

Box Contents

1 BX8 D2 speaker
1 detachable AC power cord
User Guide
Safety & Warranty Manual

Support

For complete system requirements, compatibility information, and product registration, visit the M-Audio website: m-audio.com.
For additional product support, visit m-audio.com/support.

Features

Woofer: The woofer unit is 8 inches (203 mm) in diameter with a magnetically shielded Kevlar cone, high-temperature voice coil and damped rubber surround. It is designed to deliver balanced mid and low-frequency response. M-Audio's new BX8 D2 employs Kevlar for low­frequency driver construction. The same material used in bullet-proof vests, Kevlar's high resilience makes it ideal for use in speaker cones—although it is typically reserved for monitors with higher price tags than the BX8 D2. Needless to say, Kevlar represents a significant improvement over the polypropylene and paper used in most monitors at this price.
Tweeter: By employing a specially developed 1-inch (25 mm) silk dome with magnetic shielding, the tweeter can deliver distortion-free original sound and offer an extremely natural response. Its design minimizes reaction time by using a specially shaped silk dome for excellent delivery, and also minimizes resonance by adapting a unique internal damping technology.
Sub-Frequency Port: The air vent hole in the rear panel is called a Sub-Frequency Vent Port and is designed to allow the discharge of extremely low frequencies occurring below 60 Hz.
Enclosure: Like the other components, the BX8 D2's enclosure has an important role in shaping the overall sonic response. In order to provide more stable performance, the BX8 D2's enclosure employs a special high acoustic efficiency MDF and unique interior reinforcement designed to absorb vibration and impact generated under extreme conditions. The custom design on the front panel will aid in diffraction and will benefit stereo imaging.
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Network and Power Amplifiers: The active crossover network and power amplifiers for the BX8 D2 are specially designed for its woofer and tweeter. The network properly distributes low, mid, and high frequencies to the driver components in order to reduce distortion and loss of sound, thus achieving a naturally balanced sound.
In order to generate powerful, ultra-crisp sound, there are two separate power amplifiers inside the BX8 D2 for driving the woofer and tweeter separately in a high-end bi-amp structure. The power delivered to the woofer driver at a low-rated distortion is 40 W, and 30 W is also delivered to the tweeter.

Rear Panel

1. XLR Input: This jack accepts XLR input connections with either balanced or unbalanced wiring. The input wiring of an XLR connector should be as follows:
XLR Pin 1: signal ground (shield)
XLR Pin 2: signal positive (+)
XLR Pin 3: signal negative (–)
2. TRS Input: This jack accepts 1/4" connections with either balanced or unbalanced wiring. For balanced wiring, a three-conductor TRS plug is necessary. The input wiring of a TRS connector should be as follows:
TRS Tip: signal positive (+)
TRS Ring: signal negative (–)
TRS Sleeve: signal ground (shield)
Unbalanced 1/4" wiring can be done with
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3
XLR
BX8
Frequency Response: 38Hz-22kHz LF Amp. Power: 70W / HF Amp. Power:60W Input Imp.:20K ohms Bal./10K ohms Unbal.
100-120V~,50/60Hz 130W 220-240V~,50/60Hz 130W
Made in China
Input
Volume
TRS
Power
On
D2
Off
AC Select
either a two- or three-conductor (TS or TRS) plug. A two-conductor (TS) plug automatically grounds the signal negative input, whereas a three­onductor (TRS) plug, wired unbalanced, provides the option of leaving the negative input open or grounded. We recommend that you ground the unused negative input (this can be done by wiring the ring and sleeve of the TRS plug together).
The TRS input is summed through a balanced input amplifier with the XLR input, allowing both inputs to be used simultaneously. Input specifications apply to both.
3. Product Specification: This label contains the model and specification information.
4. Sub-Frequency Vent Port: This port aids in reproduction of very low frequencies by discharging frequencies below 60 Hz.
5. Volume Control: Use the volume control to set the output sound pressure from the BX8 D2 to proper levels as required.
6. Power Switch: This switch turns the monitor on and off.
7. Power Receptacle: Accepts a detachable 3-circuit line cord in order to power the monitor.
8. Fuse Holder: Holds the external main fuse.
9. Voltage-Select Switch: Provides two selections, 115V AC and 230V AC, and should be set to match the "house supply" (receptacle) voltage of the country or location in which the speaker is used. The 115V setting is correct for the USA, while the 230V setting is correct for most of the UK and Europe.
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Front Panel

The front panel houses the Power LED, which indicates whether the speakers (amplifier) power is on or off.
1. Power LED
2. HF Driver (tweeter)
3. LF Driver (woofer)
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1
3
BX8

Installation

For optimal performance of the BX8 D2, please read the following thoroughly and carefully prior to installation.

Precautions

Handling: Please do not touch the speaker cones. The BX8 D2 set is packaged in the box tightly, so your attention is required when taking the monitors out of the box. To avoid possible damage to the speaker units, hold both sides of the monitor in order to pull it out of the box. The speaker cones should not be touched in order to avoid damage even after they are out of the box.
Correct Power Operation: Since the BX8 D2 contains its own amplifier, it must be connected to a power outlet using the detachable AC cable provided. Before connecting power, please make sure that the Voltage-Select Switch located on the speaker's rear panel is set to the appropriate position, as described in the rear-panel features list appearing earlier in this manual.
WARNING! Use of improper Voltage-Select Switch combinations may result in hazardous conditions and/or damage to speaker components not covered by speaker warranty.
Connections: You can connect either an XLR balanced cable or TRS balanced/unbalanced cable from the input of each BX8 D2 to your corresponding preamp, computer or game console outputs. We recommend that you use high-quality balanced or unbalanced cables for input connections. Also, ALWAYS turn off the power of the BX8 D2 and turn the volume of the BX8 D2 down to a minimum before making the necessary connections.
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XLR Balanced Connection

Assure that the power switch of the BX8 D2 is turned off and that the volume control of the BX8 D2 is turned down to a minimum. Connect the male end of an XLR balanced cable to the balanced input of the BX8 D2 (refer to the following diagram for balanced connection).

TRS Balanced/Unbalanced Connection

Assure that the power switch of the BX8 D2 is turned to off and that the volume control of the BX8 D2 is turned down to a minimum. Connect the male end of a TRS balanced or TS unbalanced cable to the TRS input of the BX8 D2 (refer to the following diagram for TRS connection).

Connecting to Preamp or Computer Outputs

Before connecting, make sure the output device's power has been turned off. Plug the XLR balanced, TRS balanced or TS unbalanced cable to the corresponding output connectors of a preamplifier, computer or game console.

Speaker Placement

Placing the speakers is one of the most important procedures in order to monitor sound accurately. To monitor with the BX8 D2s performing to their maximum capability, an appropriate listening environment and correct placement are required. Please refer to the following for correct BX8 D2 placement.
1. The two units and the listener should basically align to form a regular triangle. Refer to the following diagram.
2. Position the monitors so that the top of the woofers are level with your ears in a normal listening environment. Refer to the following diagram.
3. Place the monitors vertically with the woofer on the bottom. Placing the BX8 D2 horizontally is not recommended.
Remarks: DO NOT place any obstacles that may block the flow of air in front or between the monitors. Also remove reflective materials such as glass, mirrors or metal from the monitoring environment. PLACE THOSE MATERIALS AWAY FROM THE PATH OF THE SOUND FROM THE BX8 D2s.
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Technical Specifications

Type
LF Driver
HF Driver
Frequency Response
Crossover Frequency
LF Amplifier Power
HF Amplifier Power Signal-to-Noise Ratio Input Connectors
Polarity
Input Impedance
Input Sensitivity
Protection
Indicator
Power Requirements
Cabinet
Dimension
(height x width x depth)
Weight
(without packing)
* Specifications are subject to change without notice.
2-way near-field studio reference monitors 8-inch (203 mm) Kevlar curved cone with high temperature voice
coil and damped rubber surround, magnetically shielded 1-inch (25 mm) magnetically shielded natural silk dome 38 Hz – 22 KHz
2.2 KHz 70 W 60 W > 100 dB typical A-weighted 1 x XLR balanced input connector
1 x TRS balanced/unbalanced input connector Positive signal at + input produce outward LF cone displacement 20 KΩ balanced, 10 KΩ unbalanced 85 mV pink noise input produces 90 dBA output SPL at 1 meter
with volume control at maximum RF interference, output current limiting, over temperature, turn-
on/off transient, subsonic filter, external mains fuse. Power on/off indicator on rear panel Factory-programmed for 115 V ~50/60 Hz, 230 V ~50/60 Hz, or
100 V ~50/60 Hz Vinyl-laminated high-acoustic-efficiency MDF 15" x 10" x 12"
381 mm x 254 mm x 305 mm
26.4 lbs. 12 kg
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Guía del usuario (Español)

Introducción

Los BX8 D2 han sido diseñados y comprobados por expertos ingenieros de sonido con el fin de satisfacer sus necesidades de monitorización en el estudio. El principal objetivo de estos monitores consiste en ofrecer sonido original, de la máxima pureza y sin ninguna clase de coloración. Los BX8 D2 son monitores activos, compatibles con señales de línea procedentes de numerosas fuentes de audio.
Los monitores Studiophile BX8 D2 han sido concebidos para superar las limitaciones propias de los monitores de estudio convencionales en el entorno del audio digital. El sistema ofrece una amplia respuesta en frecuencia gracias a la extraordinaria calidad de sus unidades de agudos y graves y a la exclusiva tecnología de sus crossovers. Estos monitores proporcionan una respuesta estable y equilibrada en los bajos-medios, así como una excelente definición en las frecuencias medias y altas. Gracias a la protección magnética de las unidades de agudos y graves, los BX8 D2 resultan ideales en cualquier entorno de producción multimedia basado en computadora.
Con su precio asequible, los monitores Studiophile BX8 D2 establecen un nuevo estándar en la monitorización de estudio, tanto para el usuario profesional como para el propietario de un studio doméstico.

Contenido de la caja

1 monitor BX8 D2
1 cable de alimentación CA
Guía del usuario
Manual sobre la seguridad y garantía

Soporte

Para conocer los requisitos completos del sistema, la información de compatibilidad y realizar el registro del producto, visite el sitio web de M-Audio: m-audio.com.
Para soporte adicional del producto, visite m-audio.com/support.

Características

Woofer: El woofer tiene un diámetro de 8" (203 mm) y está formado por un cono de Kevlar protegido magnéticamente, una bobina de alta temperatura y un aro amortiguador de goma. El woofer del BX8 D2 ha sido diseñado para proporcionar una respuesta equilibrada en las frecuencias medias y bajas. M-Audio ha utilizado Kevlar en la construcción del woofer del nuevo BX8 D2. Se trata del mismo material utilizado en los chalecos antibalas y, gracias a su elevada resistencia, es el material perfecto para los conos, aunque normalmente es un material reservado para los monitores de gamas superiors a la del BX8 D2. Huelga decir que el rendimiento del Kevlar supera de forma significativa al del polipropileno y papel (materiales comúnmente utilizados en la mayoría de monitores de este precio.)
Tweeter: Gracias a la cúpula de seda de 1" (25 mm) protegida magnéticamente, especialmente desarrollada para estos monitores, el tweeter proporciona un sonido limpio, exento de distorsión y con una respuesta extraordinariamente natural. El diseño del tweeter contribuye a minimizar el tiempo de reacción y ofrece un rendimiento excelente, al mismo tiempo que reduce la resonancia gracias a la implementación de una exclusiva tecnología de amortiguación interna.
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Puerto de subfrecias: La salida de aire del panel trasero se denomina puerto de subfrecuencias. Su misión consiste en descargar frecuencias extremadamente bajas, del orden de 60 Hz e inferiores.
Gabinete: El gabinete del BX8 D2 juega un papel tan importante como el de cualquier otro componente, modelando específicamente la respuesta sónica global. Con el fin de ofrecer un rendimiento más estable, el gabinete del BX8 D2 está fabricado a base de MDF de alta eficiencia acústica e incorpora un exclusivo refuerzo interno diseñado para absorber las vibraciones y amortiguar el movimiento en condiciones de operación extremas. El diseño especial del panel frontal facilitará la difracción y beneficiará la imagen estéreo.
Divisor de frecuencias y amplificadores de potencia: El divisor de frecuencias activo y los amplificadores de potencia del BX8 D2 han sido especialmente diseñados para el woofer y el tweeter empleados en su construcción. El divisor se encarga de distribuir adecuadamente las frecuencias bajas, medias y altas a los distintos componentes, reduciendo la distorsión y las pérdidas de señal y proporcionando así un sonido natural y equilibrado.
Los monitores BX8 D2 disponen de dos amplificadores de potencia independientes para el tweeter y el woofer, es decir, cuentan con un sistema biamplificado de alta calidad gracias al cual proporcionan un sonido de extraordinaria potencia y definición. El amplificador de graves proporciona una potencia de 40 W a distorsión nominal, mientras que el de los agudos ofrece una potencia de 30 W.

Panel trasero

1. Entrada XLR: Este conector XLR admite señales de entrada balanceadas y no balanceadas. El cableado de la entrada XLR se realiza de acuerdo con el siguiente esquema
Patilla 1: Tierra (Masa)
Patilla 2: Positivo (+)
Patilla 3: Negativo (–)
2. Entrada TRS: Este conector 1/4" (6,35 mm) admite señales de entrada balanceadas y no balanceadas. Si desea establecer una línea balanceada deberá utilizar conectores TRS (tip-ring­sleeve) balanceados, con cables de tres conductores. El cableado de la entrada
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3
XLR
BX8
Frequency Response: 38Hz-22kHz LF Amp. Power: 70W / HF Amp. Power:60W Input Imp.:20K ohms Bal./10K ohms Unbal.
100-120V~,50/60Hz 130W 220-240V~,50/60Hz 130W
Made in China
Input
Volume
TRS
Power
On
D2
Off
TRS se realiza de acuerdo con el siguiente esquema:
AC Select
Punta: Positivo(+)
Anillo: Negativo (–)
Pantalla: Tierra (Masa)
El cableado no balanceado puede realizarse con dos o con tres conductores (TS y TRS, respectivamente). Si utiliza un conector TS de dos conductores, la señal de entrada negativa se conecta automáticamente a la masa, mientras que si emplea un conector TRS de tres conductors soldado en modo no balanceado tendrá la opción de dejar el polo negativo abierto o conectarlo a la masa. Es aconsejable conectar a la masa la entrada negativa no utilizada. Para ello basta con unir el anillo y la pantalla del conector TRS.
La señal presente en la entrada TRS se suma a la de la entrada XLR a través de un amplificador de entrada balanceada, por lo que ambas entradas pueden ser utilizadas de manera simultánea. Las especificaciones de entrada son aplicables a ambas entradas.
3. Etiqueta identificadora: Esta etiqueta contiene información acerca del modelo y de los datos específicos del monitor.
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