Dynaudio PRO BM5 Mkiii User Manual

BM5mkIII – Owner’s manual

Introduction

Introduction

Important safety instructions

The lightning ash with an arrow-

head symbol within an equilateral
triangle, is intended to alert the user
to the presence of uninsulated
“dangerous voltage” within the
product’s enclosure that may be of
sufcient magnitude to constitute a
risk of electric shock to persons.

The exclamation point within an

equilateral triangle is intended to
alert the user to the presence of im­portant operating and maintenance
(servicing) instructions in the litera­ture accompanying the product.

1. Read these instructions.

2. Keep these instructions.

3. Heed all warnings.

4. Follow all instructions.

5. Do not use this apparatus near water.

6. Clean only with dry cloth.

7. Install in accordance with the manufac­turer’s instructions.

8. Do not install near any heat sourc­es such as radiators, heat registers,
stoves, or other apparatus (including
ampliers) that produce heat.

9. Do not defeat the safety purpose of
the polarized or grounding-type plug.
A polarized plug has two blades with
one wider than the other. A grounding
type plug has two blades and a third
grounding prong. The wide blade or the
third prong are provided for your safe­ty. If the provided plug does not t into

your outlet, consult an electrician for
replacement of the obsolete outlet.

10. Protect the power cord from being
walked on or pinched particularly at
plugs, convenience receptacles, and
the point where they exit from the ap­paratus.

11. Only use attachments/accessories
spe cied by the manufacturer.

12. Use only with the cart, stand, tri­pod, bracket, or table specied
by the manufacturer, or sold with the
apparatus. When a cart is used, use
caution when moving the cart/appa­ratus combination to avoid injury from
tip-over.

13. Unplug this apparatus during lightning
storms or when unused for long peri­ods of time.

14. Refer all servicing to qualied service
personnel. Servicing is required when
the apparatus has been damaged in
any way, such as power-supply cord
or plug is damaged, liquid has been
spilled or objects have fallen into the
apparatus, the apparatus has been ex­posed to rain or moisture, does not op­erate normally, or has been dropped.

Warning!

– To reduce the risk of re or electrical

shock, do not expose this equipment
to dripping or splashing and ensure
that no objects lled with liquids, such
as vases, are placed on the equipment.

– This apparatus must be earthed.
– Use a three wire grounding type line

cord like the one supplied with the
product.

Owner’s manual 3

Introduction

Introduction

– Be advised that different operating volt-

ages require the use of different types
of line cord and attachment plugs.

– Always observe the local safety regula-

tions. Ensure that the factory-set pow­er requirements for the device (refer to
the label on the back of the monitor)
corresponds to the mains supply in
your region.

– This equipment should be installed

near the socket outlet and disconnec­tion of the device should be easily ac­cessible.

– To completely disconnect from AC

mains, disconnect the power supply
cord from the AC receptacle.

– The mains plug of the power supply

shall remain readily operable.
– Do not install in a conned space.
– Do not open the unit – risk of electric

shock inside.

Caution:

You are cautioned that any change or
modications not expressly approved in
this manual could void your authority to
operate this equipment.

Service

– There are no user-serviceable parts in-

side.
– All service must be performed by qual-

ied personnel.

EMC/EMI

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 residential installations. This
equipment 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 the
equipment does cause harmful interfer­ence to radio or television reception, which
can be determined by turning the equip­ment off an on, the user is encouraged to
try to correct the interference by one or
more of the following measures.
– Reorient or relocate the receiving an-

tenna.

– 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.

For customers in Canada:

This Class B digital apparatus complies
with Canadian ICES-003.
Cet appareil numérique de la classe B est
conforme à la norme NMB-003 du Cana­da.

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Owner’s manual 5

Introduction

3

8

5

7

1

2

6

4

Operation

Disposal

Disposal of used electrical and electronic
equipment (applicable in European coun­tries with separate collection systems for
this equipment)

This symbol on the product or its pack­aging indicates that the product may not
be treated as household waste. Instead
it must be handed over to the applicable
collection point for the recycling of elec­trical and electronic equipment. By ensur­ing this product is disposed of correctly,
you will help prevent potential negative
consequences for the environment and
human health. The recycling of materials
helps to conserve natural resources. For
more detailed information on recycling this
product, please contact your local author­ity, community waste disposal of, or the
shop where you purchased the product.

Break-in time

The transducers of your Dynaudio Profes­sional BM5mkIII will achieve better sound
quality after breaking in, especially after
the rst hours of use you may notice a sig­nicant advance in sound quality, and fur­ther subtle improvements in subsequent
hours of use.

Introduction

Congratulations on your purchase of the
Dynaudio Professional BM5 mkIII active
monitor system. With the right care and at­tention it will provide many years of excel­lent and trouble-free audio reproduction. It
is most important, however, that you take
a few minutes at this early stage of your
monitor’s life to read this manual. It con­tains essential information to help you get
the best from your new monitors.

The latest revision of this manual is always
available on our website:
dynaudio.com

For support, please refer to:
dynaudio.com/support/

Please enjoy!

Operation Overview – rear panel

Correct setup and connections is essential
to achieve optimal performance from your
monitors. Please follow the instructions on
the following pages.

AC 100-240V ~ 50/60Hz 60W

1. Power On/Off switch

2. AC power Input

3. Balanced analog input (XLR)

4. Unbalanced analog input (RCA)

5. Power Mode switch

6. Remote

7. Filter switches
– High Pass
– LF – Low lter setting
– MF – Mid lter setting
– HF – Hi lter setting

8. Level – Sensitivity switch

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Owner’s manual 7

Operation

Operation

Setting up
1/2. Power on/off

switch / AC power in

Before switching on, make sure Mains
Voltage matches your area’s mains voltage
specication.

3. Balanced analog input

Audio Input is via a fe­male XLR connector.
The input is electroni-

3

1 : 0

12

2 : +

3 : -

cally balanced with the
following connections. The connections
are printed on the rear for easy reference.

4. Unbalanced analog input (RCA)

Unbalanced Input via RCA. If your audio
source doesn’t have a balanced output,
use the RCA input connection.
For best results always use only good
quality screened cables and connectors.

Switches

On the rear of the monitor you will nd six
switches for setting up the monitor for op­timum performance in different acoustic
environments. Each switch is explained in
the following.

5. Power mode switch
ON: The speaker is active and ready to

play.
ON/SLEEP: After if no input signal has
been present on the input for 20 minutes
the speaker enters the “Sleep” mode and
saves power. The speaker is invoked and
ready to play when a signal is present on
the input again. Wake-up time is approxi­mately two seconds.

6. Remote

Usually, active speakers are at max level all
the time. By connecting the Dynaudio Ex­ternal Volume control, the volume is con­veniently controllable via the remote.

7. Filter switches
LF: This switch controls the bass gain level

using shelf-type EQ. The level can be set
to +2dB, 0dB or -2dB.
This lter is used to adjust for the prox­imity of boundaries, so if positioned close
to wall or corner, use the -2dB setting. If
positioned far from walls use the +2dB or
0 position, depending on other equipment,
and personal taste.
MF: This switch sets a notch lter, used
to compensate for the acoustic effect of a
console.
Such placement usually results in a re­sponse peak in lower midrange. The MF
switch activates a bell shaped notch lter,
which can compensate. Use either the -2
or the -4dB setting. Find the setting that
provides the attest response.
HF: This switch controls the Treble level
and it is used to match the high end of
the monitor to your other electronic equip­ment, and your acoustical environment.
Use the setting providing the preferred
timbre. If the sound is too bright; try to
set to -1 dB to reduce treble by 1dB. If
the sound is too dull, use +1dB setting to
raise the High Pass by 1dB.
HP: This switch sets the lower cut-off fre­quency of the monitor. It is used to match
the monitor to a subwoofer. You can se­lect between 60Hz or 80Hz X-over. Flat is

used in case you do not use a subwoofer
to assist your monitors. When used with a
subwoofer it is recommended to use either
60Hz or 80Hz lter, thus allowing a higher
undistorted sound pressure level.

8. Level trim

Use this switch to match the sensitivity of
the BM5mkIII monitor to your source.
High-output Source: If your source has a
high output, set switch to the -10 position
to reduce sensitivity by 10dB.
Low-output source: If your source has a
low output, set switch to the +4 position to
gain 4dB more sensitivity.

Protection

The BM5mkIII monitor has several built in
protection systems to reduce the risk of
hazard or damage due to overloading.
Both power ampliers have thermal pro­tection. This activates if a problem should
occur, and helps protect both the electron­ics and the loudspeaker drivers.
The woofer channel has a built in limit­er that protects the woofer unit from too
much excursion. It works by reducing the
gain of the circuit when a certain threshold
level is reached.

Positioning

The BM5mkIII is designed as a precision
near-eld monitor and can be equally well
used in both stereo and surround setups.
Optimal performance is achieved when
positioned 1 to 3 meters from the listener.
It can be placed on stands or on the me­ter bridge of a console provided that the
meter bridge is sufciently sturdy. For best
results, the speakers should be aimed to­wards the listener in both vertical and hor­izontal planes.

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Owner’s manual 9

Miscellaneous

Warranty

Miscellaneous

Troubleshooting

If you hear no sound, check your input
signal, i.e. by switching the left and right
speakers.

Care

Components of the highest quality are
used in your BM5mkIII. This assures years
of trouble-free operation. Following pre­cautions should still be made though.
Avoid running the system into severe
clipping. Although there is an advanced
protection system, you may be able to
destroy your speakers by severe overpow­ering them. The limiter works over a cer­tain range, but exceeding this level may
send a severely clipped signal to your driv­ers. When a noticeable distortion occurs,
please turn down the level to your speak­ers.
Avoid hot-plugging the equipment con­nected to the monitors. Always turn off the
speaker and other equipment when plug­ging or unplugging signals, or switching
equipment on or off.
Do not touch the drive units by hand. The
tweeter especially uses a very ne fabric
dome with an ultra-thin coating.

Options

Companion subwoofers for the Dynaudio
BM series are the BM9SII and BM14SII
Precision Subwoofers. Learn more about
these subwoofers at:
dynaudio.com

Service

There are no user serviceable parts inside
the monitor. If service is required please
contact service via:
dynaudio.com

Warranty

Dynaudio Professional products are war­ranted to be free from defects in compo­nents and factory workmanship under nor­mal use and service for a period of two (2)
years when bought from a reseller within
the EU.
Dynaudio Professional products are war­ranted to be free from defects in compo­nents and factory workmanship under nor­mal use and service for a period of one (1)
year when bought from a reseller outside
the EU.
When failing to perform as specied during
the warranty period we will undertake to
repair, or at our option, replace this prod­uct at no charge to its owner, provided the
unit is returned undamaged and shipping
prepaid, to an authorized service facility or
to the factory.
Dynaudio shall not be responsible for any
incidental or consequential damages. Dy­naudio’s responsibility is limited to the
product itself. Dynaudio assumes no re­sponsibility for any loss due to cancella­tion of any events, or rent of replacement
equipment or costs due to third party’s or
customer’s loss of prot, or any other indi­rect cost or losses however incurred.
Dynaudio reserves the right to make
changes or improvements in design or
manufacturing without assuming any obli­gation to change or improve products pre­viously manufactured and / or sold.
The product warranty is only valid in the
country where the product was purchased.

Exceptions

Dynaudio will always follow the law of the
respective markets should it differ from the
policy stated above or the exceptions stat­ed below.
This warranty shall be null and void, if the
product is subjected to repair work or al­teration by a person or facility other than
those authorized by Dynaudio; mechanical
damage including shipping accidents; war,
civil insurrection, misuse, abuse, operation
with incorrect AC voltage, incorrect con­nections, wrong accessories, incorrect use
of accessories, operation with faulty asso­ciated equipment, exposure to inclement
weather conditions and normal wear and
tear.
Units, on which the serial number has
been removed or defaced, are not eligible
for warranty service.

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Owner’s manual 11

Technical specications

Notes

NotesTechnical specications

Input level for 85dB SPL @ 1m, @ 0dB setting,
unbalanced

Max input level (@setting) 4,8Vrms (-10dB)

Power consumption Standby: 0.3W

Amplier power Tweeter: 50W

Max SPL 1m, normal room, short term IEC signal 118dB peak

Frequency Response (+/- 3dB) 42Hz to 24kHz

Resonance Frequency 45Hz

Internal Cabinet Volume 9.5liters

Bass Principle Bass reex

Weight 7.7kg

Dimensions (Depth x Width x Height) 296 x 186 x 320mm

Crossover 2 way

Crossover Frequency 1900Hz

Crossover Slope 12dB/oct

Connection XLR balanced and RCA unbalanced

Recommended Placing Desktop

Remarks

Tweeter D-281 – 28mm soft dome, rear chamber, magnetic uid

Woofer 180mm molded aluminum frame

Cabinet Designed to be placed on a desk.

Crossover Active, DSP based

Amplier Input sensitivity selector

80mVrms

1,5Vrms (0dB)

1Vrms (+4dB)

Idle: 5.8W

Max: 94W

Woofer: 50W

4mm aluminum front
Pure aluminum wire voice coil

One piece thermo formed MSP cone
75mm voice coil with pure aluminum wire on aluminum
former.

18mm MDF

HF, MF and LF trim selector

High pass frequency selector

Auto standby/On selector

Optional remote volume control (cabled)

High efciency digital power ampliers.

Switch mode power supply with wide range input

Due to continuous development, these specications are subject to change without notice.

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Owner’s manual 13

Notes

Notes

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Owner’s manual 15

© Dynaudio A/S, 8660 Skanderborg, Denmark

Owner’s Manual BM5mkIII, version 05.18, item no. 455426C

All text and image copyrights reserved. Subject to change without notice.

dynaudio.com