M-Audio Studiophile BX5a Deluxe Bedienungsanleitung

Studiophile™

BX5a Deluxe

User Guide

English

‣ 1

Studiophile BX5a Deluxe

English

Introduction

Thank you for choosing the Studiophile Series BX5a Deluxe bi-ampliﬁed studio near-ﬁeld monitor

speakers. M-Audio is well known for digital audio interface technology, digital converters, audio

preamps and mixers. Now, after extensive research and development, M-Audio is proud to present the

Studiophile BX5a Deluxe.

The BX5a Deluxe 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 BX5a Deluxe monitor is self-powered, directly accepting a line-level

signal from a variety of sources.

The Studiophile BX5a Deluxe 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 BX5a Deluxe sets a

new affordable standard in studio monitoring.

What’s in the Box?

Your Studiophile BX5a Deluxe box contains:

‣Two BX5a Deluxe speakers

‣Two detachable AC power cords

‣This manual

Studiophile BX5a Deluxe Features

1. Woofer

The woofer unit is 5 inches 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 BX5a Deluxe employs Kevlar for low-frequency 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 BX5a Deluxe.

Needless to say, Kevlar represents a signiﬁcant improvement over the polypropylene and paper used

in most monitors at this price.

2. Tweeter

By employing a specially developed 1-inch 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.

3. 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 60Hz.

English

4. Enclosure

Like the other components, the BX5a’s enclosure has an important role in shaping the overall sonic

response. In order to provide more stable performance, the BX5a’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.

5. Network and Power Ampliﬁers

The active crossover network and power ampliﬁers for the BX5a Deluxe 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

BX5a Deluxe 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 40W, and 30W is also delivered to the

tweeter.

Front and Rear Panel Features

Rear Panel Features

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)

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Studiophile BX5a Deluxe

English

Unbalanced 1/4” wiring can be done with either a two- or three-conductor (TS or TRS) plug. A

two-conductor (TS) plug automatically grounds the signal negative input, whereas a three-conductor

(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 60Hz.

5. VOLUME CONTROL: Use the volume control to set the output sound pressure from the BX5a

Deluxe to proper levels as required.

6. POWER RECEPTACLE: Accepts a detachable 3-circuit line cord in order to power the

monitor.

7. FUSE HOLDER: Holds the external main fuse.

8. 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.

9. POWER SWITCH: This switch turns the monitor on and off.

Front Panel Features

The front panel houses the Power LED, which indicates whether the speakers (ampliﬁer) power is

on or off.

LF Driver

(Woofer)

HF Driver

(Tweeter)

Power

LED

9.87” (250 mm)

8.75” (200 mm)6.5” (176 mm)

Installation

For optimal performance of the BX5a Deluxe, please read the following thoroughly and carefully prior

to installation.

Precautions

Handling: Please do not touch the speaker cones. The BX5a 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 BX5a Deluxe 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 BX5a 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 BX5a and turn the volume of the BX5a Deluxe down to a minimum

before making the necessary connections.

XLR Balanced Connection

Assure that the power switch of the BX5a is turned off and that the volume control of the BX5a is

turned down to a minimum. Connect the male end of an XLR balanced cable to the balanced input of

the BX5a (refer to the following diagram for balanced connection).

TRS Balanced/Unbalanced Connection

Assure that the power switch of the BX5a is turned to off and that the volume control of the BX5a is

turned down to a minimum. Connect the male end of a TRS balanced or TS unbalanced cable to the

TRS input of the BX5a Deluxe (refer to the following diagram for TRS connection).

‣ 5

Studiophile BX5a Deluxe

English

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 pre-ampliﬁer,

computer or game console.

Placing the BX5a Deluxe

Placing the speakers is one of the most important procedures in order to monitor sound accurately. To

monitor with the BX5a’s performing to their maximum capability, an appropriate listening environment

and correct placement are required. Please refer to the following for correct BX5a 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 BX5a’s vertically with the woofer on the bottom. Placing the BX5a’s 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 BX5a’s.

Warranty

Warranty Terms

M-Audio warrants products to be free from defects in materials and workmanship, under normal use

and provided that the product is owned by the original, registered user.

Visit www.m-audio.com/warranty for terms and limitations applying to your speciﬁc product.

Warranty Registration

Immediately registering your new M-Audio product entitles you to full warranty coverage and helps

M-Audio develop and manufacture the ﬁnest quality products available. Register online at

www.m-audio.com/register to receive FREE product updates and for the chance to win M-Audio

giveaways.

Appendix A - Technical Speciﬁcations

Type: 2-way near-ﬁeld studio reference monitors

LF Driver: 5-inch Kevlar curved cone with high temperature voice coil and damped

rubber surround. Magnetically shielded.

HF Driver: 1-inch magnetically shielded natural silk dome

Frequency

Response: 56Hz - 22kHz

Crossover

Frequency: 3kHz

LF Ampliﬁer Power: 40W

HF Ampliﬁer

Power: 30W

S/N Ratio: > 100dB typical A-weighted

Input Connectors: 1 x XLR balanced input connector

1 x TRS balanced/unbalanced input connector

Polarity: positive signal at + input produce outward LF cone displacement

Input Impedance: 20k ohms balanced,10k ohms unbalanced

Input Sensitivity: 85mV pink noise input produces 90dBA output SPL at one meter with

volume control at maximum

Protection: RF interference, output current limiting, over temperature, turn-on/off

transient, subsonic ﬁlter, external mains fuse.

Indicator: power on/off indicator on rear panel

Power

Requirements:

factory programmed for either 115V ~50/60Hz, 230V~50/60Hz or

100V~50/60Hz

Cabinet: vinyl-laminated high acoustic efﬁciency MDF

Dimension: 250 mm (H) x 176 mm (W) x 200 mm (D)

Weight: 5.0 kg/unit (without packing)

* Above speciﬁcations subject to change without notice

WARNING: This product contains chemicals, including lead, known to the State of California to

cause cancer, and birth defects or other reproductive harm. Wash hands after handling.

Studiophile

BX5a Deluxe

Tested to comply with

FCC standards

FOR HOME OR STUDIO USE

requirements and availability are subject to change without notice. Avid, M-Audio and Studiophile

BX5a Deluxe are either trademarks or registered trademarks of Avid Technology, Inc. All other

trademarks contained herein are the property of their respective owners

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