M-AUDIO Studiophile BX8 User Guide
Studiophile BX8
Users Manual
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2
What’s in the Box? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2
Studiophile BX8 Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2
Front and Rear Panel Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4
Rear Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4
Front Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6
Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6
Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6
XLR Balanced Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7
TRS Balanced/Unbalanced Connection . . . . . . . . . . . . . . . . . . . . . . .7
Connecting to Preamp,Computer or Game Console Outputs . . .8
Setting the EQ Switches . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8
Setting the Acoustic Space Switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10
Placing the BX8 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11
Appendix A - Technical Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . .12
Appendix B - Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13
Technical Support & Contact Information . . . . . . . . . . . . . . . . . . . . . . .14
Your BX8 Warranty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15
Studiophile BX8
version: BX8-050103
Introduction
Thank you for choosing the BX8 Studiophile Series bi-amplified powered studio
reference monitor speakers. M-Audio is well known for digital audio interface
technology, digital converters, audio pre amps and mixers. Now, after long
research and development, the Studiophile BX8 is born to change the concept
of studio reference monitoring.
The BX8 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 ad ditional coloration.The BX8 monitor
is self-powered,directly accepting a line level signal from a variety of sources.
The Studiophile BX8 is designed to overcome all the limitations of conventional
studio reference monitors within the digital audio environment. This system
delivers a wide range of 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 highfrequency response as well.Both drivers are magnetically shielded for desktop
music production.
For pro engineers at commer cial studios to home studio owners,the Studiophile
BX8 sets a new affordable standard in studio monitoring.
What’s in the Box?
Your Studiophile BX8 box contains:
•Two BX8 speakers
•Two detachable AC power cords
• This manual
• Actual test data of the BX8 you purchased
Studiophile BX8 Features
1. Woofer
The woofer unit is 8 inches in diameter with a magnetically shielded
mineral-filled polypropylene cone, high-temperature voice coil and damped
rubber surround. It is designed to deliver balanced mid- and low- frequency
response. Polypropylene is used to react against the input signal accurately and
to deliver even minimal input precisely while minimizing distortion.
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2. Tweeter
By employing a specially developed 1" silk dome with magnetic shielding, the
tweeter can deliver distortion-free original sound and offer extremely natural
response. It minimizes reaction time by using fabric silk for excellent delivery,
and also minimizes resonance by adapting a unique internal damping technology.
3. Sub-Frequency Port
The hole in the rear panel is called a Sub-Frequency Port and is designed to
discharge extreme low frequencies under 30 Hz.
4. EQ and Acoustic Space Controls
Back panel controls on the BX8’s give you compensation for room EQs as well
as compensation for the positioning of the speakers within your room. High
frequency cuts,mid-range boost, and low frequency cutoffs offer a great deal of
control over the sound and presence of the BX8s, while the “Acoustic Space”
settings account for a variety of speaker placements.
5. Enclosure
The enclosure has an important role just as the other components. The BX8’s
enclosure is designed to endure impact from inside under extreme conditions.
It employs special high-density MDF and unique interior reinforcement to
provide more stable performance.
6. Network & Power Amplifiers
The network & power amplifiers for the BX8 are specially designed for this
woofer and tweeter. The network properly distributes low, mid, and high
frequencies to the components in order to reduce distortion and loss of sound,
thus achieving a naturally balanced sound.
In order to generate ultra crisp,powerful sound quality,there are two separate
power amplifiers inside the BX8 to drive the woofer and tweeter separately in
a high-end bi-amp structure.The power delivered to the w oofer driver at a rated
distortion is 65W,and 65W is also delivered to the tweeter.
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Front and Rear Panel Features
Rear Panel
1. XLR INPUT: This jack accepts XLR input connections with either balanced or
unbalanced wiring. The signal of the XLR INPUT is summed together with the
TRS INPUT through a balanced input amplifier,allowing both inputs to be used
simultaneously. Input specifications apply to both inputs. 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 a TRS connector,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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Unbalanced wiring works with either a two- or three-conductor TRS connector .
A two-conductor TRS plug automatically grounds the minus signal input,
whereas a three-conductor TRS plug wired unbalanced provides the option of
leaving the minus open or grounded. We recommend that you ground the
unused input.
The TRS input is summed together with an XLR input through a balanced input
amplifier, allowing both inputs to be used simultaneously. Input specifications
apply to both inputs.
3. PRODUCT LABEL:This label contains the model and serial number information.
4. VENT PORT: This port aids in reproduction of very low frequencies by
discharging frequencies below 30 Hz..
5. VOLUME CONTR OL: Use the volume control to set the output sound pressur e
from the BX8 to proper levels as required.
6. LOW CUTOFF: This 3-position switch sets the bass rolloff cutoff frequency.The
lowest setting, 37Hz, is essentially a low cutoff bypass as it does not attenuate
the BX8’s frequency response.Other settings are 47Hz and 80Hz.
7. MID-RANGE: Two selections ar e possible,“Flat” and “Pr esence.” The Flat setting
produces a flat frequency response curve, while the Presence setting gives a
boost in the mid-range frequencies.
8. HIGH FREQ: Three settings are possible, 0dB, -2dB, and -4dB. 0dB is a “flat”
setting with no attenuation, while the -2dB and -4dBsettings will attenuate the
high frequencies (to 5kHz) by 2dB and 4dB respectively.
9. ACOUSTIC SPACE: This 3-position switch is designed to compensate for
different speaker placements.Please see the section,“Setting the Acoustic Space
Switch” for more information.
10. POWER SWITCH: This switch turns the monitor on and off.The on position is
indicated by the marking “I”.
11. POWER RECEPTACLE: Accepts a detachable 3-circuit line cord in order to
power the monitor.
12. FUSE HOLDER: Holds the external main fuse .
13. VOLTAGE-SELECT SWITCH:Provides 2 selections - 115VAC and 230VAC,and
should be set to match the “house current” (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 correct for most of the UK and Europe.
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