Dynaudio BM12A
Contents
1. 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 receptable The mains plug of the power supply shall remain readily operable Do not install in a confined space Do not open the unit risk of electric shock inside Caution You are cautioned that any change or modifications not expressly approved in this manual could void your authority to operate this equipment Service There are no user serviceable parts inside All service must be performed by qualified personnel TABLE OF CONTENTS INTRODUCTION Important Safety Instructions a Table of Contents 3 Introduction 4 OPERATING Rear Panel Overview 5 Setting UP 6 Indicators 7 Positioning 7 MISCELLANEOUS Troubleshooting 8 Gale Basted gE ia well iat ende Hn Secs 8 OPUONS rer ren 8 SEWVICE mii iris sa 8 Technical specifications 9 TC Electronic Sindalsvej 34 DK 8240 Risskov tcdk tcelectronic com English Version Rev 1 00 INTRODUCTION Congratulations on your purchase of the Dynaudio Acoustics BM12A active monitor system With the right care and attention it will provide many years of excellent and trouble free audio reproduction It is m2. BM12A Users manual dynaudioacoustics IF IT S THERE YOU LL KNOW IT IMPORTANT SAFETY INSTRUCTIONS The lightning flash with an arrowhead A symbol within an equilateral triangle is intended to alert the user to the presence of uninsulated dangerous volt age within the product s enclosure that may be of sufficient magnitude to constitute a risk of electric shock to persons Read these instructions Keep these instructions Heed all warnings Follow all instructions Do not use this apparatus near water Clean only with dry cloth 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 amplifiers 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 fit 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 specified by the manufacturer 12 Use only with the cart stand tripod bracket or table specified by the manu
3. ching on make sure Mains Voltage matches your areas Mains Voltage specification Replace fuse only with the fuse type marked on the rear panel label 3 Balanced analog Input Audio Input is via a female XLR connector The Input is electronically balanced with following connections The connections are printed on the rear for easy reference AN a fff 2 QUO 3 If your signal source is unbalanced usually the unused pin is connected to ground This is normally done inside the connecting cable Special adaptors not supplied can be bought that converts xlr input to single ended RCA type input For best result use only good quality screened cables and connectors Switches On the rear of the monitor you will find 5 switches for setting up the monitor for optimum performance in different acoustic environments Each switch is explained in the following 4 High Pass filter switch 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 60Hz or 80Hz 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 60Hz or 80Hz filter thus allowing a higher undistorted soundpressure level 5 Level Trim Use this switch to match the sensitivity of the BM12A monitor to your source High output Source If your source has a high output set switch to the 10 position to reduce sensit
4. facturer 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 qualified 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 NOOR WNDN The exclamation point within an A equilateral triangle is intended to alert the user to the presence of important operating and maintenance servicing instructions in the literature accompanying the product Warning To reduce the risk of fire or electrical shock do not expose this equipment to dripping or splashing and ensure that no objects filled 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 Be advised that different operating voltages require the use of different types of line cord and attachment plugs Always observe the local safaty regulations 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 e This
5. fficient cooling is necessary Also notice that the heat sink is designed to provide maximum cooling when the monitor is positioned vertically MISCELLANEOUS Troubleshooting If Power LED lights green and no sound check your input signal f ex by switching speakers If power LED does not light at all and no sound check the fuse If replaced and still no sound contact your Dynaudio Acoustics Dealer If protection LED lights red check the temperature of the heat sink If it feels hot turn off the speaker and wait for some 10 minutes to allow the amplifier to cool off Turn it on again If it works now it is ok but you may need more air circulation around your speaker to avoid overheating to take place again Care Components of the highest quality is used in your BM12A This assures years of trouble free operation Following precautions should still be made though Avoid running the system into severe clipping Even there is an advanced protection system you may be able to destroy your speakers by severe overpowering 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 fine fabric dome with a ultra thin coating Options The BM12A may be combi
6. ivity by 10dB Low output source If your source has a low outout set switch to the 4 position to gain 4dB more sensitivity 6 LF This switch controls the bass gain level using shelf type EQ The level can be set to 2dB OdB or 2dB This filter is used to adjust for the proximity of boundaries so if positioned close to wall or corner use the 2dB setting If positioned far from walls use the 2dB or 0 position depending on other equipment and personal taste 7 MF This switch sets a notch filter 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 filter which can compensate Use either the 2 or the 4dB setting You may experiment finding the setting which provides the flattest response 8 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 1dB to reduce treble by 1dB If too dull sound use 1dB setting to raise the treble by 1dB INDICATORS amp POSITIONING Indicators On the front you will find 2 diodes These are positioned just above the Dynaudio Logo a a Yu dynaudioacoustics O The green power diode indicates speaker on off status Green indicates power on 8 The sec
7. ned with a Dynaudio Acoustics subwoofer for extended bass performance and higher spl if highpass filter is used See Setting Up Service There are no user serviceable parts inside the monitor If service is required please contact service via www tcsupport tc or TC Electronic Sindalsvej 34 DK 8240 Risskov Denmark Tel 45 87427000 TECHNICAL SPECIFICATIONS System Two way Active Nearfield Monitor Frequency Response 3 dB 38Hz 21kHz Input level for 85 dB SPL 1m 18dBu RMS 0dB setting Input Impedance 65kOhm each branch Power consumption Idle 15W Max 130W Amplifier power Tweeter 50W Woofer 100W Bass Principle Bass reflex Vent tuning frequency 40Hz Internal Cabinet Volume 13 6 liters Crossover Frequency 1500Hz Crossover Slope 6dB oct Tweeter Esotar 28 mm 1 1 soft dome rear chamber magnetic fluid 4 mm alu front pure alu wire voice coil neodym magnet Woofer 200 mm 8 One piece thermo formed poly prop cone 75 mm 3 kapton coil neodym magnet Weight 12 1kg 26 6lbs Dimensions W x H x D 234 x 370 x 327mm 9 2 x 14 6 x 12 9 8Lb GGP ON PAld
8. ond diode has two functions When the output stage is close to clipping the LED will light up orange And it will light up red when the amplifier gets too hot At the same time the monitor will be muted in order to reduce the temperature Protection The BM12A monitor has several built in protection systems to reduce the risk of hazard or damage due to overloading Both power amplifiers have thermal protection This activates if a problem should occur and helps protect both the electronics and the loudspeaker drivers There is also a thermal sensor measuring the temperature on the heat sink An electronic circuit will mute the signal when too high temperature is reached The protection diode on the front will light up when this happens On the tweeter output there is an overload protection to prevent burning the tweeter driver in case of overloading This circuit will mute the tweeter signal if too much current is fed to the tweeter Positioning The BM12A is designed as a near to mid field monitor and can be equally well used in both stereo and surround setups Optimal performance is achieved when positioned 1 3 meters from the listener lt can be placed on stands or on the meter bridge of a console provided that the meter bridge is sufficiently sturdy For best results the speakers may be aimed towards the listener in both vertical and horizontal planes Note Be aware that proper air circulation around the monitor for su
9. ost important however that you take a few minutes at this early stage of your BM12ASs life to read this manual It contains essential information to make you get the best from your new monitors Break In time The transducers of your BM12A monitor will achieve better sound quality after breaking in Especially after the first hours of use you may notice a significant advance in sound quality Still after first few hours improvement take place but lesser noticeable The latest manual revision is always available at our website www dynaudioacoustics com For support please also refer to www dynaudioacoustics com Please enjoy dynaudioacoustics IF IT S THERE YOU LL KNOW IT OVERVIEW REAR PANEL Correct setup and connections is essential to achieve optimal performance from your monitors Please follow the instructions on the following pages DYNAUDIO ALOT HEIN ae TI TI AC in Ratings CAUTION 1 AC power Input and fuse 5 Level trim 2 Power On Off switch 6 LF Low filter setting 3 Balanced analog Input 7 MF Mid filter setting 4 High Pass filter switch 8 HF Hi filter setting SETTING UP 1 2 Power On Off switch AC Power In Before swit
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