Numark Industries DXM03 Music Mixer User Manual
Contents
1. u TW OIT AMS SS E ANTENNA DVD IN OUT SPEAKERS VCR FRONT A CENTER SURROUND SURROUND BACK BI AMP IAEE T Ad au E nm E O Z AGOUTLETS n FINE S et s 750 UNBAL REMOTE HII SITTI mmm Y T PRE OUT SINGLE CENTER FRONT SURROUND SUR BACK DOI III HIH III III III III III EENH HININ Subwoofer Output Power RoHS A d Li t Subsonic Filter Adjustment compitan CAUTION For continued E CAUTION protection against isk of RISK OF ELECTRIC SHOCK fire replace only with DO NOT OPEN same type fuse and rating ATTENTION Utiliser ATTENTION QAER un fusie de rechonge 20Hz 35Hz de meme type et callbre S CAUTION Refer to Owner s Manual for 5A 120V 60Hz c R Adjustment Information T5AL 250V Factory Preset 35Hz U S Patent 5 075 634 and 5 510 753 Patent Pending Subwoofer MODEL 500 AMPLIFIER owner s MANUAL E SETUP Ba Tips Hints amp Suggestions The MODEL 500 controls will allow you to make the best of virtually any installation If you feel uncomfortable with setting up your MODEL 500 after reading through this manual then you should consider enlisting the help of an experienced person or contacting your dealer Below are a few generalized rules for understanding the acoustic nature of low frequency sou2. IMPORTANT SAFETY INSTRUCTIONS E Read these instructions Keep these instructions Heed all warnings Follow all instructions Do not use this apparatus near water Clean only with dry cloth Do not block any ventilation openings Install in accordance with the manufacturer s instructions Do not install near any heat sources such as radiators heat registers stoves or other apparatus inlcuding amplifiers that produce heat 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 Protect the power cord from being walked on or pinched particularly at plugs convenience receptacles and the point where they exit from the apparatus Only use attachments accessories specified by the manufacturer Unplug this apparatus during lightning storms or when unused for long periods of time 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 WA
3. subwoofer with your main system speakers We have found that most speakers with 6 to 8 woofers blend well with the crossover set somewhere between 50Hz and 80Hz Readjust the Level and the Frequency controls up or down as necessary until the bass sounds full extended and natural Use multiple musical pieces to test the system while fine tuning the controls If it sounds like your subwoofer is always producing the same bass note with different recordings it is possible that the bass level is adjusted too high Phase To adjust the Phase use music with sustained bass notes Rotate the Phase control back and forth across its range and listen for the localization of the bass to become more distinct and also slightly louder While making this adjustment it can be helpful to temporarily adjust the Frequency control to 120Hz This should provide some overlap of the satellite and subwoofer frequencies and help the ears brain to distinguish the two sound sources Return the Frequency control back to its desired position after performing the phase adjustment Subsonic Filter This control is used to protect the subwoofer from damage due to excessive excursion reduce distortion and also to preserve the amplifiers power in installations where the subwoofer is incapable of reproducing extremely deep bass passages Ideally the control should be set at or just below the system resonance The factory default position is 35Hz This will work well for mo
4. EE EEE EES 9 Fine Tuning the Control oS Ce ee mmmm EAS AA AAN 9 Other COI e o POCHO E lh A DI E E E E 10 SPECIFICATIONS ia nd a A ee a AR daa 10 YOUR MODEL 500 SUBWOOFER AMPELIFIER o Thank you for purchasing the Model 500 subwoofer amplifier The Model 500 has been developed to provide extraordinary power and clarity while also providing a broad range of woofer compatibility This manual covers operating procedures general setup and technical specifications for your Model 500 We recommend that you thoroughly read through the material contained in this manual before connecting your amplifier This will ensure that you have a complete understanding of how to properly setup and operate your subwoofer amplifier for optimum performance Thank you again for choosing the Model 500 we are confident that it will provide you with the extraordinary power and performance necessary to bring your subwoofer to life Box Contents ked An Amplifier Rack Ears with Screws Power Cord Owners Manual MODEL 500 AMPLIFIER owner s MANUAL EN m The MODEL 500 subwoofer amplifier was designed to offer performance value and flexibility It incorporates a 500W class A B amplifier utilizing the patented BASH technology for high electrical efficiency m 4 independent controls offer flexibility to integrate nearly all subwoofers with the main speakers and the listening environment Instructions for fine tuning these controls are described in a later se
5. It is not necessary to direct the front of a subwoofer at the listening position MODEL 500 AMPLIFIER owner s MANUAL EN e U P i continued u MODEL 500 Controls The MODEL 500 subwoofer amplifier has four variable controls to integrate its output to the subwoofer and for tailoring the subwoofer s output to the room and to the primary speakers also known as satellites These controls are Level Crossover Frequency Phase and subsonic filter The control with the most audible effect is the Level control followed by the Crossover Frequency Phase control and then Subsonic filter which has the least audible effect The following legend shows graphically how each control affects the audio signal SPL SPL SPL dB dB dB Frequency Hz Frequency Hz Phase Degrees 20 35 Frequency Hz Level Frequency Phase Subsonic Filter Fine Tuning the Controls We recommend the following method as a starting point for fine tuning the MODEL 500 subwoofer amplifier A Level and Frequency Begin with the amplifier s Level control all the way down and the Frequency adjustment set to 120Hz With the Frequency control in this position the woofer will output higher frequencies that will likely be duplicated by the satellite speakers Play some familiar music through the system music with robust bass content and increase the Level control until the bass passages sound robust or exaggerated Then reduce the Frequency control to blend the
6. RNING To reduce the risk of fire or electric shock this apparatus should not be exposed to rain or moisture and objects filled with liquids such as vases should not be placed on this apparatus To completely disconnect this equipment from the mains disconnect the power supply cord plug from the receptacle The mains plug of the power supply cord shall remain readily operable WARNING Disconnect power before making any connection to the speaker terminals as they may present a risk of electrical shock CAUTION The lightning flash with arrowhead The exclamation point within an equilat symbol within an equilateral triangle is intended eral triangle is intended to alert the user to the to alert the user to the presence of uninsulated presence of important operating and maintenance dangerous voltage within the product s en servicing instructions in the literature accompa closure that may be of sufficient magnitude to nying the product constitute a risk of electric shock to persons MODEL 500 AMPLIFIER OWNER S MANUAL 2 MODEL 500 OWNERS MANUAL HON TE Nas IMPORTANT SAFETY INS TRUETTON Ss ss ss an ae u u u a 2 YOUR MODEL 500 SUBWOOFER AMPLIFIER AS AS A A EO EE 3 FEATURES sense zn IIS A HR en ee 4 5 C O NIN EC TONER ee Re Bay SETUP MMOS EINE SE A A ee 8 39 MODEL 500 Controls eooooooorrronccnccccconoonconccncoccc ono E a e n a ne y Gi roo rr rr oro rr rr reo rr eb na qabi E
7. ction of this manual m The continuously variable low pass filter network is adjustable from 40Hz to 120Hz and can be bypassed if it is preferable to use an external filter or one located in an outboard receiver or processor m The continuously variable phase circuit is adjustable from 0 to 180 degrees to finely integrate the subwoofer with the main listening speakers m The MODEL 500 incorporates a unique continuously variable subsonic filter that is adjustable from 20Hz to 35Hz that preserves the amplifiers power for only bass frequencies that are reproducible by the subwoofer It also helps to protect the subwoofer from being overdriven and can help to reduce distortion by reducing extreme woofer excursion m A defeatable Auto power mode turns the amplifier on automatically when a signal is detected The Auto power mode can be defeated if it is desirable to use a remote AC circuit to control the amplifier power m Dual subwoofer outputs allow multiple woofers to be connected to the same amplifier without having to resort to pigtails wire nuts or specialized connectors m The Model 500 incorporates stereo Line Level inputs and outputs that permit the amplifier to be connected between a preamplifier and amplifier without the need for Y connectors The Line Level inputs also incorporate a buffered internal summing network so that a mono signal is derived from the left and right channels while maintaining the stereo signal integrity for the mai
8. ls 9 Line Level Output Input signal is passed to these jacks to allow multiple connections without the use of Y cables Subsonic Filter Adjustment Adjustment to determine lower frequency limit of amplification 1 Power Input Receptacle and Fuse Holder IEC 2 conductor 120V receptacle accepts supplied IEC power cord 12 Master Main Power Switch Primary power On Power Enabled OFF Power disconnected from amplifier circuit MODEL 500 AMPLIFIER OWNER S MANUAL 5 No signal connection cable is provided with the MODEL 500 amplifier since the length of cable is installation specific A shielded RCA type coaxial cable or a shielded two conductor wire with RCA type connectors is required for connection of the MODEL 500 to the audio system Before making any connections ensure that power cord is disconnected or that the main power switch is switched to the off position Input Signal Follow the diagram on page 6 for connecting the subwoofer to your audio system Use the option that best suits your installation The information below will aid in determining which option to use Left Right Stereo If an LFE Low Frequency Effect or Subwoofer output is available then skip to Option 2 since it will likely produce the best results If no LFE output is available and a line level Front Channel Output or Preamplifier Output is available then this Option 1 is the preferred method of connection Per the Option 1 drawing on the adjace
9. m Dimensions m Weight m Shipping Dimensions m Shipping Weight 20Hz 300Hz 40Hz 120Hz Low pass filter with bypass switch 0 180 degrees Continuously variable 500 watts RMS into 4 ohms with thermal and clipping limiters 250 watts RMS into 8 ohms with thermal and clipping limiters Less than 0 2 at rated power Summing stereo line level RCA x2 LFE RCA shared with Left input connector Line Level 20kohms Unbalanced 120V 60Hz AC IEC 2 wire receptacle with integral fuse holder 5A 250V GMA style Fast Blow Auto signal sensing and always on 10 minutes 16 7 8 W x 3 7 8 H x 14 75 D 429W x 98H x 375D mm with feet without ears 15lbs 6 8kg 21 5 W x 8 5 H x 17 5 D 550W x 220H x 450D mm 20lbs 9 1kg MODEL 500 AMPLIFIER owner s MANUAL 10 NOTES MODEL 500 AMPLIFIER owNer s MANUAL n DEM SYSTI Sparks Nevada 775 www oemsystems com Rev D
10. n stereo speakers m A double insulated isolated ground electrical supply prevents electrical ground loops and reduces the noise floor of the entire audio system Model 500 amplifier shown with rack ears attached MODEL 500 AMPLIFIER owner s MANUAL Es FEATURES TEYE u Model 500 Crossover Frequency 80 Power Mode Crossover On Variable 60 100 Bypass 40 120 Subsonic T Adjustment Left LFE 2 an ATENI TION Utilise Right EI RI al blaue IS un fusible de eo nge 20Hz 35Hz de meme type et callbre CAUTION Refer to Owner s Manual for 5A 120V 60Hz Adjustment Information BASH T5AL 250V Factory Preset 35Hz CLASS 2 WIRING Power Mode Switch Selects if amplifier power is signal activated Auto Signal Sensing On Bypassed Amp ON 2 Power and Standby Mode Indicator Off No Power Blue On Red Standby 3 Phase Control Adjusts relative alignment of output signal with respect to the input Oo In Phase 1800 Out of Phase 4 Crossover Bypass Switch Selects if internal crossover low pass filter is active Variable Active Bypass Inactive 5 Crossover Frequency Control Adjusts low pass filter cutoff frequency 6 Level Control Adjusts output level to subwoofer 7 Subwoofer Output Dual sets of 5 way binding posts provide connection for subwoofer s Outputs 1 amp 2 are parallel Line Level Input Input connection for RCA Line Level signals from processor or preamp Includes LFE amp Sub signa
11. nd reproduction in an average residential listening room These rules will aid in understanding the best placement of your subwoofer and the tuning of your MODEL 500 amplifier Experiment with the adjustments of your MODEL 500 to determine what works best in your listening room m Virtually all rooms have significant resonant modes The listener will experience these resonant modes as an acoustic increase or decrease in intensity at certain frequencies These resonant modes are a result of reflected acoustic energy within the room interacting with other acoustic energy either reflected or direct These frequency dependent nodes or antinodes as they are called are different for every listening position within the room Equalization cannot simultaneously compensate for all locations within a room Only physical elements within or at the room s boundaries can effectively alter the room s behavior These resonant modes can produce large errors in the frequency response and reduce the overall enjoyment of the audio reproduction Subwoofer placement has some effect on the location of the resonant modes One should contact an expert in the field of acoustics if one finds that the low frequency reproduction in their room is unsatisfactory Placing a subwoofer near a wall will substantially increase its effective radiating power especially at very low frequencies Placing the subwoofer near the intersection of two walls a corner will substantially increase i
12. nt page use a stereo RCA style patch cable and connect the left and right line level RCA style front channel outputs of your receiver or preamplifier processor to the Left Right Line Level inputs of the MODEL 500 LFE If the amplifier is to be connected to a modern home theater receiver or processor with an available LFE or Subwoofer output then this option will likely produce the best results If no LFE or Subwoofer output is available but a line level Front Channel Output or Preamplifier Output is available then use Option 1 Per the Option 2 drawing on the adjacent page use a single RCA style patch cable and connect the line level RCA style LFE or Subwoofer output of your receiver or preamplifier processor to the Left LFE Line Level input of the MODEL 500 AC Power The unit is shipped with a standard IEC AC cable Remove this cable from its packaging and insert the cord into the IEC receptacle on the back of the subwoofer It is best to connect power only after all other connections are made Connect the power cord to an AC wall receptacle or similar source MODEL 500 AMPLIFIER owner s MANUAL 6 CONNECTION continued IS AUDIO III LA III SINGLE CENTER O ko KO MO O 0 O 0 FRONT SURROUND SUR B BACK WOOFER TH E 000 AS AID ir
13. st subwoofers 12 or less in diameter For large subwoofers or where the system resonance is very low the control should be lowered below the 35 Hz position MODEL 500 AMPLIFIER OWNER S MANUAL EN SETUP continued Other Controls A Crossover Switch If you choose to bypass the internal crossover and use an external crossover such as those located in most modern receivers and processors then you will need to fine tune the system based on the adjustments provided by the manufacturer of your electronics in conjunction with the Level and Phase controls on the MODEL 500 Note the Level and Phase adjustments on the MODEL 500 are not bypassed and will still function as indicated above To bypass the internal crossover move the Crossover switch 6 to the Bypass position The subwoofer will now pass signals up to 300Hz B Auto Power Mode Switch The same circuit also places the MODEL 500 into standby mode when no signal has been detected for a period of approximately 10 minutes This signal sensing circuit can be bypassed by switching the Auto switch 2 to the OFF position if it is preferable to control the MODEL 500 s power with a remotely operated power source SPECIFIC ATION E Frequency Response m Crossover Frequency m Phase Adjustment m Amplifier Output Power m Distortion m Audio Inputs m Input Impedance m Input Power m Input Power Connection m Power Mains Fuse m Power Modes Auto Off Delay
14. t even more Corner loading as it is called is an excellent way to get bass extension and greater acoustic output from your subwoofer and can increase the listening pleasure Placing the subwoofer close to the listening sitting position will increase the intensity of the transients and reduce the acoustic power demands from the subwoofer The listener will hear more direct sound from the subwoofer and less reflected sound m Bass frequencies are generally considered to be omnidirectional and tend to have no localization That is to say that it is difficult to determine their place of origin For this reason placement of most subwoofers is not limited to the front of the room However in practice this is not the case There are cues such as tactile vibration and higher frequency signal components that can suggest the direction of the source For this reason it may be desirable to locate the subwoofer at the front of the room near the main speakers It may also be necessary to reduce the crossover frequency if one finds that the bass sounds too detached from the other sound sources If placement of the woofer at the front of the room is not an option consider placing the subwoofer at the back of the room Placement directly behind the listening position can produce very good results as well as corner loading in the back of the room E Using multiple woofers at opposite corners of the room can be done to balance the localization of the sound m
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