Dx-388

Transcript

TM OWNER'S MANUAL ® Professional Mixing Amplifier DX-388 Operating Instructions MIC1 VOL INPUT KEY 1 BAL ECHO LOW MID HI 16 BIT DIGITAL KEY CONTROLLER KEY CONTROL -20dB GAIN PEAK 0 MIC2 10 VOL INPUT KEY 2 L5 BAL R5 0 10 ECHO -15 LOW +15 -12 +12 -15 MID +15 b4 HI b3 b2 b1 -20dB #1 LEFT BASS.CL RIGHT NORMAL HIGH #2 #3 DISCO HALL #4 GAIN PEAK 0 MIC3 10 VOL INPUT KEY 3 L5 BAL R5 0 10 ECHO -15 LOW +15 -12 +12 -15 MID +15 B HI BASS INPUT ON b OFF A INPUT -20dB DX-388 GAIN PEAK 0 10 VOL ECHO L5 R5 LOW 0 HI 10 -15 RPT +15 -12 +12 -15 +15 DLY ECHO VOL ST MO Extra Echo Extra Echo Effect # LOW 9 10 11 8 SELECTOR 0 10 L5 R5 0 10 -15 +15 -12 MIC MASTER VOL 9 12 8 13 7 6 +12 5 MUSIC VOL BAL LOW MID HI 4 3 10 L5 R5 0 10 -15 +15 -12 +12 VOL. R/S 5 16 4 0 Thank you for purchasing this unit. To make full and effective use of this unit, please read this Owner's Manual carefully before operating it. After reading this manual, retain this booklet together with the Warranty Card for future use in case of maintenance or troubleshooting. Passionate about Music www.BetterMusicBuilder.com 20 MAX 9 8 13 15 5 16 4 17 18 0 20 11 ON 13 14 16 3 17 2 18 1 MUSIC. VR MAX POWER 12 15 19 MIN 10 7 6 14 1 MIC. VR MUSIC MASTER VOL 12 2 19 MIN 11 3 18 1 0 15 17 2 10 7 6 14 SUB-WOOFER 19 0 MIN 20 MAX OFF against them. Please pay particular attention to cords plugs, convenience receptacles, and the point where they exit this BMB product. RISK OF ELECTRIC SHOCK DO NOT OPEN 11. Object and Liquid Entry: Care should be taken so that objects do not fall on, or liquids are not spilled into this BMB product. CAUTION: TO REDUCE THE RISK OF ELECTRIC SHOCK DO NOT REMOVE COVER (OR BACK) NO USER-SERVICEABLE PARTS INSIDE REFER SERVICING TO QUALIFIED PERSONNEL 12. Damage Requiring Service: This BMB product should be serviced only by qualified service personnel when: A. The power-supply cord or the plug has been damaged; or B. Objects have fallen, or liquid has spilled into this BMB product; or C. This BMB product has been exposed to rain; or D. This BMB product does not appear to operate normally or exhibits a marked change in performance; or E. This BMB product has been dropped, or its chassis damaged. SAFETY INSTRUCTIONS 1. Read Instructions: All the safety and operation instructions should be read before this BMB product is operated. 2. Retain Instructions: The safety and operating instructions should be kept for future reference. 3. Warnings: All warnings on this BMB product in these operating instructions should be followed. 4. Follow Instructions: All operating and other instructions should be followed carefully. 13. Servicing: The user should not attempt to service this BMB product beyond those means described in this operating manual. All other servicing should be referred to the BMB Service Department. 5. Water and Moisture: This BMB product should not be used near water, for example, near a bathtub, washbowl, kitchen sink, laundry tub, in a wet basement, near a swimming pool, swamp or salivating St. Bernard dog, etc. 14. To prevent electric shock, do not use this polarized plug with an extension cord, receptacle or other outlet unless the blades can be fully inserted to prevent blade exposure. 6. Cleaning: Clean only with a dry cloth. 15. Grounding or Polarization: Precautions should be taken so that the grounding or polarization means of this BMB product is not defeated. 7. Ventilation: This BMB product should be situated so that its location or position does not interfere with its proper ventilation. For example, the Component should not be situated on a bed, sofa, rug, or similar surface that may block any ventilation openings, or placed in a built-in installation such as a bookcase or cabinet that may impede the flow of air through ventilation openings. 16. Power Precaution: Unplug this BMB product during lightning storms or when unused for long periods of time. Note that this BMB product is not completely disconnected from the AC mains service when the power switch is in the OFF position. 8. Heat: This BMB product should be stayed away from heat sources such as radiators, or other devices producing heat. 17. This apparatus does not exceed the Class A/Class B (whichever is applicable) limits for radio noise emissions from digital apparatus as set out in the radio interference regulations of the US Department of Communications. 9. Power Sources: This BMB product should be connected to a power supply only of the type described in these operation instructions or as marked on this BMB product. 18. Exposure to extremely high noise levels may cause permanent hearing loss. Individuals vary considerably in susceptibility to noise-induced hearing loss, but nearly everyone will loss some hearing if exposed to sufficiently intense noise for a period of time. The U.S. 10. Power Cord Protection: Power supply cords should be routed so that they are not likely to be walked upon or pinched by items placed upon or 2 Accessories Do not place the set on an unstable cart, stand, tripod, bracket, or table. The set may fall, causing serious injury to a child or an adult, and serious damage to the set. Use only a cart stand tripod, bracket, or table recommended by the manufacturer. Government's Occupational Safety and Health Administration (OSHA) have specified the permissible noise level exposures shown in the following chart. According to OSHA, any exposure in excess of these permissible limits could result in some hearing loss. To ensure against potentially dangerous exposure to high sound pressure levels, it is recommended that all persons exposed to equipment capable of producing high sound pressure levels use hearing protectors while the equipment is in operation. Ear plugs or protectors in the ear canals or over the ears must be worn when operating the equipment in order to prevent a permanent hearing loss if exposure is in excess of the limits set forth here. MIC1 INPUT MIC2 INPUT MIC3 INPUT VOL BAL ECHO LOW MID PEAK 0 10 VOL L5 BAL R5 0 10 ECHO -15 LOW +15 -12 +12 -15 MID PEAK 0 b4 b3 b2 b1 10 VOL L5 BAL R5 0 10 ECHO -15 LOW +15 -12 +12 -15 MID OFF LOW B BASS INPUT 10 VOL L5 R5 LOW 0 HI 10 -15 RPT +15 -12 +12 -15 ON #2 8 9 10 11 0 10 L5 BAL R5 0 10 LOW -15 MID +15 -12 +12 HI #3 L5 R5 0 10 -15 +15 -12 +12 9 10 11 12 8 13 7 6 14 DISCO 10 VOL L5 BAL PEAK 0 10 VOL L5 BAL ECHO R5 0 LOW 10 ECHO R5 0 -15 LOW 10 ECHO -15 LOW MID +15 -12 HI +12 -15 MID +15 -12 16 BIT DIGITAL KEY CONTROLLER KEY CONTROL +15 HI +12 -15 MID b4 b3 b2 b1 B BASS INPUT 10 VOL ECHO L5 R5 LOW 0 HI 10 -15 RPT +15 -12 +12 -15 ON ECHO VOL 8 9 10 11 10 0 10 L5 BAL R5 0 10 LOW -15 MID +15 -12 +12 MIC MASTER VOL 12 6 0 10 -15 +15 -12 +12 VOL. R/S 15 5 16 4 17 1 0 MIN 20 19 10 11 #2 #3 DISCO MAX 1 0 MIN 20 19 9 #4 11 12 5 16 4 POWER 14 15 16 3 17 2 MUSIC. VR MAX ON 13 7 15 18 A INPUT 10 6 14 17 2 MIC. VR 8 13 3 18 HILL SUB-WOOFER MUSIC MASTER VOL 12 7 4 2 R5 9 6 14 5 HI 3 L5 8 13 7 0 VOL R.CL HIGH # LOW DX-388 DLY SELECTOR MUSIC W.CL NORMAL b OFF +15 ST MO Extra Echo Extra Echo Effect #1 L.CL +15 HI -20dB PEAK 0 1 0 MIN 20 19 18 OFF MAX For the set with a three-wire grounding type ac plug: This plug will only fit into a grounding-type power outlet. This is a safety feature. If you are unable to insert the plug into the outlet, contact your electrician to have a suitable outlet installed. Do not defeat the safety purpose of the grounding plug. Duration Per Day Sound Level dBA, In Hours Slow Response 8 90 6 92 4 95 3 97 2 100 1.5 102 1 105 0.5 110 0.25 or less 115 #4 HILL 9 10 11 12 Typical Example Duo in small club Subway Train Very loud classical music Patrice screaming at Ron about deadlines Loudest parts at a rock concert WARNING- To reduce the risk of fire or electric shock, do not expose this appliance to rain or moisture. 14 15 5 15 5 15 4 16 4 16 4 16 VOL. R/S 17 1 0 MIN 20 19 3 18 MAX 17 2 MIC. VR 1 0 MIN 20 19 18 3 17 2 MUSIC. VR MAX POWER ON 13 7 6 14 A INPUT SUB-WOOFER MUSIC MASTER VOL 5 2 10 8 13 6 3 0 # MIC MASTER VOL 12 7 VOL R.CL HIGH DX-388 ECHO VOL SELECTOR MUSIC W.CL NORMAL b +15 DLY ST MO Extra Echo Extra Echo Effect #1 L.CL +15 HI -20dB GAIN PEAK 0 BAL PEAK 0 -20dB GAIN 16 BIT DIGITAL KEY CONTROLLER KEY CONTROL +15 HI GAIN ECHO VOL -20dB GAIN -20dB KEY 3 INPUT GAIN HI -20dB GAIN KEY 2 INPUT MIC3 KEY 3 AC-POWER CORD INCLUDED KEY 1 INPUT MIC2 KEY 2 AC-Power Sources This set should be operated only from the type of power source indicated on the marking label. If you are not sure of the type of electrical power supplied to your home, consult your dealer or local power company. For those sets designed to operate from battery power, or other sources, refer to the operating instructions. 110V AC-POWER MIC1 KEY 1 1 0 MIN 20 19 18 OFF MAX Overloading Do not overload wall outlets, extension cords or convenience receptacles beyond their capacity, since this can result in fire or electric shock. CONTENTS Introduction................................................. 4~6 Package accessories........................................ 7 Specifications................................................. 7 Speaker connection......................................... 7 Name and functions of remote controller.............. 8 Features and functions of the amplifier............ 9~12 110V AC-POWER How to connect speaker..................................13 How to connect music A.V. source.................... 13 How to connect recorder................................. 13 An appliance and cart combination should be moved with care. Quick stops, excessive force and uneven surfaces may cause the appliance and cart combination to overturn. How to connect your microphone......................14 Amplifier dimension........................................ 15 3 structure of power amplifiers - constant gain and constant sensitivity. Constant gain means that regardless of the output power of the amplifier, the gain from input to output remains the same. (By the way, this refers to the full gain of the amplifier, with the gain or level controls all the way up.) Within a product line of constant gain power amplifiers, as the output power rating of an amplifier increases, the level of the input voltage must also increases. For example, if an amplifier is rated at 100W into an 8-ohm load, and it has 26 dB of gain, it requires an input signal of 1.4V rms to drive it to full power. This is about +5 dBu, a reasonable operating point for professional gear. INTRODUCTION Thank you for choosing the BMB DX-388 Stereo Mixing and Digital Key Control Amplifier (also called BMB DX-388). We appreciate your vote of confidence in this innovative product. BMB DX-388 is indeed a hybrid of power amplifier and mixer that can help you save more space and achieve convenience. It can produce the lowest level of feedback. It is designed to fulfill the amplification needs of almost any type of application. It also boasts some special features you would expect to pay for like adjustable built-in equalizer at different levels (i.e. Hi-EQ, Mid-EQ, and Low-EQ) enabling the microphone to adjust music key while you are singing Karaoke, subwoofer filtering, speaker-protecting limiter, etc. Perhaps the most important feature of the BMB DX-388 Power Amplifier is the attention to detail in every aspect of designs. Now take an amplifier rated at 200W into an 8-ohm load. If it also has a gain of 26 dB, it requires an input signal of 2.0V rms to drive it into full power, or +8 dBu. This can become problematic as the power of the amplifier increases. What if you have a power amp rated at 800W into 8 ohms? This will require an input signal of 4.0V rms to drive it to full power. This equates to a whopping +14.3 dBu! You've just robbed your mixer of 10 dB of headroom. You'll either have to have a good limiter to keep the transient peaks down, or turn down the level from the mixer and not use all the power available from the amplifier. BMB DX-388 is based on real and proven design principles. The result of using proven design principles is a production of a power amplifier that can perform better than conventional designs when presented with adverse conditions. The design can also satisfy multi-uses for home Karaoke, Professional D.J., KTV rooms and equipment rental. Constantly sensitivity means that regardless of the output power of the amplifier (the input voltage required to attain full output power) remains the same. As the output power of an amplifier increases, the gain of the amplifier must also increase. Referring back to the previous example, an amplifier rated at 100W into 8 ohms with a gain of 26 dB requires an input signal of 1.4V rms to drive it to full power. It has an input sensitivity of 1.4V rms. In order for the 200W amplifier to reach full power into 8 ohms with a 1.4V rms input signal, it must have a gain of 29dB. And the 800W amplifier will require a gain of 35 dB to reach full power with a 1.4V input signal. One of the most difficult things for a power amplifier to handle is clipping. Conventional designs use lots of negative feedback to provide stability and lower distortion. When clipping occurs, this "feedback" causes high-frequency sticking, keeping the amplifier "latched" in the clipping state longer than necessary. This results in painfully audible distortion. The design of BMB DX-388 can eliminate this high-frequency sticking and allow the amplifier to remain stable when powering high reactive loads high volume level. To operate the BMB DX-388 Stereo Mixing and Digital Key Control Amplifier properly, please read this manual carefully and follow the instructions. So what are the pros and cons of these two approaches? The reason some amplifier manufacturers use the constant gain approach is because the noise specification looks better. It's a fact of physics that as the gain of the amplifier increases, the circuit noise is amplified and increases too. By maintaining a constant gain, the noise spec for an 800W amplifier can look as good as the noise spec for a 100W amplifier. The downside to this is that you have to crank up your mixer level feeding the input of the amplifier, losing headroom and possibly increasing the noise level from the mixer. SPECIAL FEATURE DESCRIPTIONS Gain MIC1 VOL INPUT KEY 1 BAL ECHO LOW MID HI 16 BIT DIGITAL KEY CONTROLLER KEY CONTROL -20dB GAIN PEAK 0 MIC2 10 VOL INPUT KEY 2 L5 BAL R5 0 10 ECHO -15 LOW +15 -12 +12 -15 MID +15 b4 HI b3 b2 b1 -20dB #1 L.CL W.CL #2 #3 DISCO HILL #4 R.CL GAIN PEAK 0 MIC3 10 VOL INPUT KEY 3 L5 BAL R5 0 10 ECHO -15 LOW +15 -12 +12 -15 MID +15 B HI BASS INPUT ON b OFF LOW NORMAL HIGH A INPUT -20dB GAIN PEAK 0 10 VOL ECHO L5 R5 LOW 0 HI 10 -15 RPT +15 -12 +12 -15 DX-388 +15 DLY ECHO VOL ST MO Extra Echo Extra Echo Effect # 8 SELECTOR 0 MUSIC 9 10 11 10 VOL L5 BAL R5 0 10 LOW -15 MID +15 -12 +12 HI MIC MASTER VOL 12 8 13 7 6 9 10 11 8 13 6 14 SUB-WOOFER MUSIC MASTER VOL 12 7 9 10 11 12 6 14 14 5 15 5 15 5 15 4 16 4 16 4 16 3 17 3 17 3 17 There are two viewpoints regarding the gain 2 0 10 L5 R5 0 10 -15 +15 -12 +12 VOL. R/S 1 0 MIN 20 19 18 MAX 2 MIC. VR 1 0 MIN 20 19 18 2 MUSIC. VR MAX POWER ON 13 7 1 0 MIN 20 19 18 OFF MAX 4 Conversely, constant sensitivity demands that as the power increases, so must the gain. Yes, the output noise of the amplifier will increase, but you maintain in the critical headroom available from your mixer. The additional noise is generally not a problem in live sound reinforcement situations. If it is, you can turn down the GAIN control a few clicks to find a happy compromise between noise floor and headroom available. As an added benefit, you can drive multiple amplifiers with the same signal and get the maximum power available from all of them. The BMB DX-388 Stereo Mixing and Digital Key Control Amplifier has low, mid peaking, and high built-in equalizer. The gain structure of the BMB DX-388 Stereo Mixing and Digital Key Control Amplifier is designed so that a 4 dBu (1.23V rms) input signal drives the amplifier to 425 watts into 4 ohms. This is how the sensitivity of an amplifier is defined. In this case, it equates to a voltage gain of about 20 dB. MID-EQ HI-EQ This control provides from -15 dB to + 15 dB of boost of cut, and it is also flat at the detent. Use it to add sizzle to cymbals or an overall sense of transparency or edge to keyboards, vocals, guitar, and bacon frying. Short for "midrang," it provides from -12 dB to +12 dB of boost or cut, also flat at the center detent. Midrange EQ is often considered the most dynamic because the frequencies that define any particular sound are almost always found in this range. You can set the GAIN controls as low as you like. However, reducing GAIN controls requires an increased input level to reach full power at the amplifier's output. Like all amplifier controls, you'll typically determine the optimal settings during installation or sound check, then leave them alone, using your signal source to control listening level as you work. LOW-EQ This control provides from -15 dB to + 15 dB of boost. The circuit is flat (no boost or cut) at the center detent position. This frequency represents the punch in bass drums, bass guitar, fat synth patches, and high-testosterone male singers. Automatic Zero Volume Adjustment REAR (A) MIC INPUT Smart Fan W.S TM Better Music Builder ® 3 2884-93454-8 0 MARK 020898-11 MUSIC INPUT CALIFORNIA, UNITED STATES OF AMERICA COMMENTS? E-MAIL: [email protected] www.BetterMusicBuilder.com ENGINEERED AND DESIGN IN U.S.A. SAFETY ITEM NO. D030906 USA 020898-1 1/4 XLR 1/4 XLR The fan at the back of the BMB DX-388 Stereo Mixing and Digital Key Control Amplifier automatically turns on to cool down the heat when the temperature reaches 60 degree Fahrenheit. Fan turns on automatically when O the temperature reaches 60 F REAR (B) MIC INPUT A SERIAL NO. A B Fan turns on automatically when the temperature reaches 60 F MODEL NO. DX-388 O DIGITAL STEREO MIXING PROFESSIONAL AMPLIFIER AC-POWER: 120V 60Hz B HIGH LOW SIGNAL SEND FUSE SPEAKER OUT TERMINAL RIGHT SUB-WOOFER FREQUENCY CONTROL SUB OUT LEFT BASS SUB-WOOFER VOLUME CONTROL OUTPUT 120V 60Hz 500 Watt 1 k Hz 0 10 PRE OUT AC POWER 100 Hz 10 Hz L B A B INPUT A R LINE REC R/CH1 L/CH2 Music Key Control W-/CH3 W+/CH4 The special function of the automatic volume adjustment automatically sets both of the MIC MASTER VOL and MUSIC MASTER VOL to zero volume level when the power is turned on. This would avoid sudden painfully loud sound to damage hearing power for ear. You can switch it to for manual operation. However, we recommend you to use this function to protect your hearing power. 16 BIT DIGITAL KEY CONTROLLER KEY CONTROL b4 BAL LOW MID B INPUT 10 L5 R5 0 10 -15 BASS ON #1 BASS.CL RIGHT NORMAL HIGH b OFF LOW # #2 #3 DISCO HALL #4 A INPUT Three channels (Left, Bass and Right): When there is flashing signal in one of these three channels, it means the amplifier has reached its maximum power output and is overload. If it continues to operate under this condition, it may burn the amplifier or the speakers. a HI +15 -12 b1 Adjust the music key for Karaoke singing. Increase the music keys from #1 to #4 and decrease the music keys from b1 to b4. MUSIC 0 b2 LEFT Adjustable Built- In Equalizer VOL b3 +12 5 Echo Effect VOL ECHO Extra Echo Extra Echo Effect Input Wiring LOW HI RPT Use a high-quality 3-conductor shielded cable to connect the signal between the signal source and the balanced inputs to the amplifier. If you're using the unbalanced inputs, use a high-quality 2-conductor shielded cable. DLY ST MO SELECTOR 0 10 L5 R5 0 10 -15 +15 -12 +12 You can increase the echo effect by adjusting the volume with Low (Lo) and High (HI) and mixing with the Time Delay (DLY) and Repeat (RPT). Output Wiring Use heavy gauge, stranded wire for connecting speakers to the DX-388 terminals. As the distance between the amplifier and the speakers increase, the thickness of the wire should also increase. Speaker wire has resistance, and when electricity passes through a resistor, power is lost. The thicker the wire, the less resistance it offers, and the more power actually gets to the speakers. GENERAL CONSIDERATIONS AC Power Distribution The majority of AC outlets encountered in homes and clubs are served by a 240VAC center- tapped service entrance transformer. This provides two phases of AC power on either side of the center tap at 120V each. In order to minimize ground loops, the safety grounds for all the outlets should be connected to a common ("star") grounding point, and the distance between the outlets and the common grounding point should be as short as possible. The thickness of wire is rated in gauges. Use the chart below to determine the correct gauge of wire to use according to the distance between the speakers and the amplifier, and the impedance of the load the amplifier is driving. This ensures that the power lost across the speaker wire is less than 0.5dB. If lighting is used in a show, it is preferable to power the lights from one leg of the service, and power the audio equipment from the other leg. This will help minimize noise from the lights coupling into the audio. When setting up for a show, very often you are plugging into an AC power distribution system you know nothing about. You may even be faced with 2-wire AC outlet tester in your toolbox so you can check the outlets yourself to make sure they are wired correctly. These testers will tell you if the polarity of the hot and neutral wires is reversed and if the safety ground is disconnected. Don't use an outlet if it is wired improperly! This is to protect yourself as well as your equipment. If you find that you must plug into a two-wire outlet, you will need to use a two-wire to three-wire adapter (cheater plug). These come with a metal tab that you put underneath the center screw that holds the AC outlet faceplate in place. This center screw must be grounded. You can check it by connecting the adapter to the outlet and then plugging in your AC outlet tester. 6 WIRE LENGTH LOAD IMPEDANCE GAUGE OF WIRE Up to 25 ft 2 4 8 14 gauge 16 gauge 18 gauge Up to 40 ft 2 4 8 12 gauge 14 gauge 18 gauge Up to 60 ft 2 4 8 10 gauge 12 gauge 16 gauge Up to 100 ft 2 4 8 8 gauge 10 gauge 14 gauge Up to 150 ft 2 4 8 6 gauge 8 gauge 12 gauge Up to 250 ft 2 4 8 4 gauge 6 gauge 10 gauge SAFETY PRECAUTIONS PACKAGE ACCESSORIES Selecting fine audio equipment such as the unit you've just purchased is only the first step to your musical enjoyment. Now it's time to consider how you can maximize the fun and the safety of your new equipment. We want you to get the most out of your equipment by playing it at a safe level without affecting your hearing. Sound can be very harmful. Over time your hearing "comfort level" adapts to higher volumes of sound. What sounds "normal" can actually be loud and harmful to your hearing. Therefore, please guard against this by setting your equipment at a safe level before your hearing adapts. To establish a safe level, you can start your volume control at a low setting, then slowly increase the sound until you can hear it comfortably and clearly. If used wisely, your new sound equipment will provide you a pleasant experience in music. Since hearing damage from loud noise is often undetectable until it is too late, we recommend you avoid prolonged exposure to excessive noise. The following noises can be dangerous under constant exposure. Therefore, please be cautious with the dB level when playing your new equipment. Decible Level 120 dB 140 dB 180 dB Check to make sure that you have all the enclosed parts before assembly and installation. OWNER'S MAUNAL Professional Mixing Amplifier DX-388 Operating Instructions MIC1 INPUT MIC2 INPUT MIC3 INPUT VOL KEY 1 BAL ECHO LOW MID HI -20dB 16 BIT DIGITAL KEY CONTROLLER KEY CONTROL GAIN PEAK 0 10 VOL KEY 2 L5 BAL R5 0 10 ECHO -15 LOW +15 -12 +12 -15 MID +15 HI b4 b3 b2 b1 PEAK 0 10 VOL L5 BAL R5 0 10 ECHO -15 LOW +15 -12 +12 -15 MID L.CL +15 HI B BASS INPUT -20dB ON PEAK 0 10 VOL ECHO L5 R5 LOW 0 10 0 10 HI -15 RPT +15 -12 +12 -15 MUSIC VOL L5 BAL R5 LOW -15 MID +15 -12 +12 11 MIC MASTER VOL 12 10 L5 R5 0 10 -15 HI +15 -12 8 13 4 +12 VOL. R/S 15 5 16 4 17 1 0 MIN 20 19 9 10 11 #2 #3 #4 R.CL DISCO MAX 1 0 MIN 20 19 9 15 5 16 4 18 11 SUB-WOOFER 12 POWER ON 13 14 15 16 3 17 2 MUSIC. VR MAX A INPUT 10 7 6 14 17 2 MIC. VR 8 13 3 18 HILL HIGH MUSIC MASTER VOL 12 7 6 14 3 0 1 0 MIN 20 19 18 OFF MAX Thank you for purchasing this unit. To make full and effective use of this unit, please read this Owner's Manual carefully before operating it. After reading this manual, retain this booklet together with the Warranty Card for future use in case of maintenance or troubleshooting. AB D/H # 10 6 5 2 b 9 7 10 NORMAL DX-388 ECHO VOL 8 SELECTOR 0 # LOW +15 DLY ST MO Extra Echo W.CL b OFF GAIN Extra Echo Effect #1 -20dB GAIN KEY 3 SW Passionate about Music www.BetterMusicBuilder.com ECHO MIC Owner's manual VOL PLACE STAMP HERE CUSTOMER SERVICE 29300 Kohoutek Way #150 Union City, CA 94587 U.S.A. DX-388 Example Remote control one unit Rock band concert in front of speakers, thunderclap Gunshot blast, jet plane Rocket launching pad AA ALKA L BATT INE ERY Audio Output................................. 600 Watt (300+300) SUB-Woofer Output........................ 300W MIC Input Sensitivity........................ <20mV External Devices Sensitivity............... 250mV Signal/Noise Ratio (with IHF A Filter). <80dB T.H.D (1kHz.AUX 150mV INPUT)......<2% Frequency Band............................. 25Hz~20kHz MIC. Tone Adjustment..................... 80Hz±15dB 3.5kHz±15dB 12kHz±15dB ECHO Tone Adjustment................... 80Hz±15dB 12kHz±15dB Power Source................................ AC120V/60Hz Electricity Consumption.................... 500 Watt Net Weight.................................. 47 LBs Dimension (inch)............................. 18(W)x7(H)x17(L) AA ALKA L BATT INE ERY Battery size: AA (R6 1.5 V) SPECIFICATIONS Consumer survey card AC power cable United States (M) to IEC (F) SPEAKER CONNECTION BINDING POSTS WITH BARE WIRE INSERT 7 BINDING POSTS WITH DOUBLE BANANA PLUG NAMES AND FUNCTIONS OF REMOTE CONTROLLER COMPONENTS 10 1 b 2 3 # AB 6 D/H 7 SW 8 11 4 ECHO MIC VOL ALKA 9 LINE AA 5 AA BAAL TTKA NE ERLI Y BATT ERY 12 DX-388 1 KEY CONTROL HIGH RESPONSE 2 KEY CONTROL NATURAL RESPONSE 3 KEY CONTROL LOW RESPONSE 4 ECHO VOLUME CONTROL 5 MICROPHONE VOLUME CONTROL 6 AB INPUT SIGNAL PLUG-IN CONTROL 7 DISCO/HALL MUSIC MODE CHOOSE 8 SUB-WOOFER INPUT CHOOSE 9 MUSIC VOLUME CONTROL 10 OPEN BATTERY COVER Open the battery compartment cover on the back of the remote control unit. The cover should be opened easily if you press on in with your thumb while sliding it in the direction of the arrow. 11 12 NOTE Remove the batteries to avoid damage from possible battery leakage whenever you anticipate that the remote control will not be used for an extended period. Handle the remote control with care. Avoid dropping it, getting it wet, or placing it in direct sunlight, near a heater, or where the humidity is high. 13 USING REMOTE CONTROL UNIT When operating the remote control unit, point the unit's infrared signal transmitter at the remote control remote sensor on the front panel of the amplifier. The remote control unit can be used within a range of about 18 feet (6m) from the remote sensor, and within angles REMOTE of up to about 13 30 degrees. 18 feet (6 m) o 30 30 o INSERTING BATTERIES Insert two size AA (R6) alkaline batteries (supplied) by matching the + and _ on the batteries to the diagram inside the battery compartment. b AB D/H # SW ECHO CLOSE BATTERY COVER Close the cover of the battery case. MIC DX-388 8 VOL NAMES AND FUNCTIONS OF FRONT PANEL COMPONENTS 1 POWER SWITCH Press this switch up to turn the power ON. Press the switch down to turn the power OFF. 11 MIC. 1 SIGNAL LIGHT When it receives an audio signal at or above 0 dB automatically on. Signal will appear on the meters. 2 MUSIC VOLUME CONTROL This control allows you to adjust the volume of the musical source. 12 3 MIC. (MICROPHONE) VOLUME CONTROL This control MIC.1, MIC.2 and MIC.3 to adjust the master volume. MIC. 1 GAIN SWITCH Turn it on to increase the microphone signal level to -20 dB. Turn it down to decrease the microphone signal level to normal. 13 MIC. 1 INPUT 1/4 JACK This jack is for connecting microphones input 1. 14 KEY CONTROL 15 MIC. 2 INPUT 1/4 JACK Same features as MIC.1 with same control buttons. Please view details from 4 to 12. 4 5 ECHO VOLUME CONTROL This control allows you to adjust the volume of the ECHO source. MIC. 1 (HI) HIGH CONTROL Adjusts the microphone 1 high frequency EQ response. VOL BAL PEAK 0 6 10 VOL MIC. 1 (MID) MIDDLE CONTROL Adjusts the microphone 1 middle frequency EQ response. L5 BAL LOW MID HI R5 0 10 ECHO -15 LOW +15 -12 MID +12 -15 +15 HI -20dB GAIN PEAK 0 10 VOL L5 BAL R5 0 10 ECHO -15 LOW +15 -12 MID +12 -15 +15 HI -20dB GAIN PEAK 0 7 ECHO -20dB GAIN MIC. 1 LOW CONTROL Adjusts the microphone 1 low frequency EQ response. 16 8 MIC. 1 ECHO VOLUME CONTROL Adjusts the microphone 1 echo effect EQ response. 9 MIC. 1 (BAL) BALANCE CONTROL Adjusts the microphone 1 signal for left and right speakers. 10 L5 R5 0 10 -15 +15 -12 +12 -15 +15 MIC. 3 INPUT 1/4 JACKS Same features as MIC.1 and 2 with same control buttons. Please view details from 4 to 12. VOL BAL ECHO LOW MID HI -20dB GAIN PEAK 0 10 VOL 15 14 13 12 11 10 9 0 10 ECHO -15 LOW +15 -12 MID +12 -15 +15 HI -20dB PEAK 0 10 L5 BAL R5 0 10 ECHO -15 LOW +15 -12 MID +12 -15 +15 HI -20dB MIC. 1 (VOL) VOLUME CONTROL Adjusts the microphone 1 volume. 16 R5 GAIN VOL 10 L5 BAL GAIN PEAK 0 8 7 6 10 L5 R5 0 10 -15 5 16 BIT DIGITAL KEY CONTROLLER KEY CONTROL b4 b3 b2 b1 LEFT B INPUT 4 9 BASS ON #1 BASS.CL RIGHT NORMAL HIGH b OFF LOW 3 # #2 #3 DISCO HALL #4 A INPUT 2 1 +15 -12 +12 -15 +15 NAMES AND FUNCTIONS OF FRONT PANEL COMPONENTS MIC1 VOL INPUT KEY 1 BAL ECHO LOW MID HI 16 BIT DIGITAL KEY CONTROLLER KEY CONTROL -20dB GAIN PEAK 0 MIC2 10 VOL INPUT KEY 2 L5 BAL R5 0 10 ECHO -15 LOW +15 -12 +12 -15 MID +15 HI b4 b3 b2 b1 PEAK 0 10 VOL INPUT L5 BAL R5 0 10 ECHO -15 LOW +15 -12 +12 -15 MID L.CL +15 HI B BASS INPUT -20dB ON PEAK 0 VOL ECHO L5 R5 LOW 0 10 HI -15 RPT +15 -12 +12 -15 ECHO VOL 8 0 10 L5 BAL 18 MUSIC (HI) HIGH BUTTON 19 ECHO (RPT) REPEAT BUTTON 20 MUSIC (MID) MIDDLE BUTTON 21 ECHO (HI) HIGH BUTTON 22 MUSIC LOW BUTTON 23 ECHO LOW BUTTON 11 R5 0 10 LOW -15 MID +15 -12 +12 MIC MASTER VOL 12 10 L5 R5 0 10 25 -15 4 +12 VOL. R/S 15 5 16 4 17 1 0 MIN 20 19 9 10 11 #3 DISCO MAX 1 0 MIN 20 19 9 10 #4 15 5 16 4 18 ON 13 14 15 16 17 MUSIC. VR 24 POWER 12 3 2 MAX A INPUT SUB-WOOFER 11 7 6 14 17 2 MIC. VR 8 13 3 18 HILL HIGH MUSIC MASTER VOL 12 7 6 14 5 HI +15 -12 8 13 3 0 ECHO (DLY) DELAY BUTTON 10 6 2 17 9 7 VOL NORMAL DX-388 DLY SELECTOR MUSIC 26 #2 R.CL # LOW +15 ST MO Extra Echo Extra Echo Effect 10 W.CL b OFF GAIN 27 #1 -20dB GAIN MIC3 KEY 3 1 0 MIN 20 19 OFF 18 MAX 23 22 21 20 19 18 17 24 MUSIC (BAL) BALANCE BUTTON Adjusts the music balance signal for left and right speakers. 25 ECHO VOLUME BUTTON Adjusts the echo volume level. 26 MUSIC VOLUME BUTTON Adjusts the music volume level. 27 STEREO OR MONO SELECTOR Adjusts the echo stereo or mono. NAMES AND FUNCTIONS OF REAR PANEL COMPONENTS VOL INPUT MIC1 KEY 1 BAL ECHO LOW MID PEAK 0 10 VOL L5 BAL R5 0 10 ECHO -15 LOW +15 -12 +12 -15 MID PEAK 0 10 VOL L5 BAL R5 0 10 ECHO -15 LOW +15 -12 +12 -15 MID b4 b3 b2 b1 #1 L.CL +15 HI B BASS INPUT -20dB ON PEAK 0 10 L5 VOL R5 LOW 0 HI 10 -15 RPT +15 -12 +12 -15 8 MUSIC 9 10 11 10 L5 BAL R5 0 10 LOW -15 MID +15 -12 +12 MIC MASTER VOL 12 6 HI L5 R5 0 10 -15 +15 -12 11 #2 #3 34 #4 R.CL DISCO HILL HIGH 8 13 9 10 11 12 14 15 5 15 4 16 4 16 17 1 0 MIN 20 19 3 18 MAX 17 2 MIC. VR 1 0 MIN 20 19 18 3 17 2 MUSIC. VR MAX POWER ON 13 7 6 14 A INPUT SUB-WOOFER MUSIC MASTER VOL 12 5 16 VOL. R/S +12 10 15 4 2 10 9 7 6 14 5 3 0 8 13 7 0 NORMAL DX-388 ECHO VOL SELECTOR VOL # LOW +15 DLY ST MO Extra Echo Extra Echo Effect W.CL b OFF GAIN ECHO KEY CONTROL Set the desired key by the 16 bit digital key controller buttons that have nine steps with signal light display on top. 16 BIT DIGITAL KEY CONTROLLER KEY CONTROL +15 HI -20dB GAIN INPUT MIC3 KEY 3 31 HI -20dB GAIN INPUT MIC2 KEY 2 1 0 20 MIN 19 18 OFF MAX 16 BIT DIGITAL KEY CONTROLLER KEY CONTROL b4 b3 b2 b1 LEFT B INPUT 33 BASS ON #1 BASS.CL RIGHT NORMAL HIGH b OFF LOW # 32 31 #2 #3 32 #4 INPUT SELECTION This button is input B selector for input audio signal. 33 B DISCO HALL A INPUT 30 29 34 28 INPUT SELECTION This button is input A selector for input audio signal. 28 A 29 HALL EFFECT MODE 30 DISCO EFFECT MODE BASS (SUB-WOOFER MODE) ON/OFF 10 OVERLOAD SENSOR Three channels (Left, Bass and Right): When there is flashing signal in one of these three channels, it means the amplifier has reached its maximum power output and is overload. If it continues to operate under this condition, it may burn the amplifier or the speakers. NAMES AND FUNCTIONS REAR (A) MIC INPUT REAR (B) MIC INPUT W.S TM Better Music Builder ® 1/4 XLR 1/4 XLR SERIAL NO. Fan turns on automatically when the temperature reaches 60 F MODEL NO. DX-388 O 3 2884-93454-8 DIGITAL STEREO MIXING PROFESSIONAL AMPLIFIER AC-POWER: 120V 60Hz 0 A A 36 B B 37 LOW 38 HIGH SIGNAL SEND SAFETY MARK ITEM NO. D030906 020898-11 USA 020898-11 SPEAKER OUT TERMINAL RIGHT FUSE SUB-WOOFER FREQUENCY CONTROL SUB OUT LEFT BASS SUB-WOOFER VOLUME CONTROL OUTPUT 100 Hz 10 Hz 1 k Hz 0 10 B A B R LINE 50 49 48 47 46 45 REC R/CH1 L/CH2 41 INPUT A 40 OUT 120V 60Hz 500 Watt 39 PRE L AC POWER 51 35 MUSIC INPUT CALIFORNIA, UNITED STATES OF AMERICA COMMENTS? E-MAIL: [email protected] www.BetterMusicBuilder.com ENGINEERED AND DESIGN IN U.S.A. 42 W-/CH3 W+/CH4 44 43 35 SUB-WOOFER OUTPUT VOLUME 43 RCA CONNECTOR SIGNAL OUT FOR RECORD 36 MUSIC INPUT 44 RCA CONNECTOR OUT TO BRIDGE AMPLIFIER 37 MUSIC INPUT B RCA connector audio source input. 45 38 MICROPHONE SIGNAL SEND This is RCA connector out to PC or scoring function. SMART FAN It automatically turns on when the temperature reaches 60 degrees Fahrenheit. Therefore, if the fan is not on, it does not mean that it is not working. It has a built-in sensor to measure the temperature. 39 SUB-WOOFER FREQUENCY CONTROL 46 40 SUB-WOOFER VOLUME CONTROL MICROPHONE INPUT B (Connecting to MIC. 2) XLR (Balance) or 1/4 (Unbalance) 47 SUB-WOOFER OUT (DRIVER, NON-POWERED) 48 A B B OUT (LEFT SIDE OUT) SPEAKER A 49 SPEAKER A B (RIGHT SIDE OUT) 50 MICROPHONE INPUT A (Connecting to MIC. 1) XLR (Balance) or 1/4 (Unbalance) 51 AC-POWER PLUG 120V/60Hz 500 Watts 41 42 W+ A : RCA audio source input. SOUND EFFECT DEVICE SEND HIGH FREQUENCY PRE-OUT CONNECTION: The R/CH1 and L/CH2 (Stereo) are bridged to the power amplifier. SOUND EFFECT DEVICE RETURN LOW FREQUENCY PRE-OUT CONNECTION: W-/CH3 and W+/CH4 are bridged to the power amplifier (subwoofer). + CH1 - CH2 CH3 W- CH4 11 $ $ $ $ RIGHT CHANNRL HIGH FREQUENCY LEFT CHANNRL HIGH FREQUENCY W- LOW FREQUENCY W+ LOW FREQUENCY NAMES AND FUNCTIONS again, the auto set button would automatically turn the "MIC" volume button and "MUSIC" volume button to a low output level. Therefore, if it would not cause any sudden loud and unpleasing sound for ear protection. 16 BIT DIGITAL KEY CONTROLLER KEY CONTROL b4 b3 b2 b1 LEFT B INPUT BASS ON #1 BASS.CL RIGHT NORMAL HIGH b OFF LOW # #2 #3 DISCO HALL #4 NOTE A INPUT The "AUTO" set button controls the "MIC" volume and "MUSIC" automatically by detecting sound signal. This auto set function protects the amplifier and speakers when power is suddenly cut off. NOTE ON OFF AUTO SET MIC. GAIN MUSIC GAIN 3 2 1 This auto set function has no effect on echo control. MUSIC GAIN Volume Adjustment Set the "MUSIC GAIN" volume button at neutral position (i.e. 12'o clock position right in the middle). If the volume output level of "MUSIC GAIN" is close to the maximum, and the "MUSIC" volume is increased to a high output level, the "Left Channel" or the "Right Channel" indicator may flash. In this case, it would reduce the sound reality and may burn the amplifier and speakers. 1 -6 dB MIC. GAIN Volume Adjustment Set the "MIC. GAIN" volume button at neutral position (i.e. 12'o clock position right in the middle). If the volume output level "MIC GAIN" is close to the maximum, and the "MIC." volume is increased to a high output level, the "Left Channel" or "Right Channel" indicator may flash. In this case, it would reduce the sound reality and may burn the amplifier and speakers. -6 dB 70 Degree 2 70 Degree AUTO SET When the "AUTO" set button is off, it is in normal setting. When the "AUTO" set button is on, the "MIC." volume and "MUSIC" volume is controlled automatically. -6 dB 3 80 Degree NOTE When this button is on, the "MIC" volume button and "MUSIC" volume button would be automatically reset to the minimum if you turn off the power or the power is suddenly cut off. When you turn on the power -6 dB 8 Feet 12 HOW TO CONNECT SPEAKER SPEAKER OUT TERMINAL RIGHT A SUB OUT LEFT B A BASS B PASSIVE SUBWOOFER NON-POWERED SUB NOTE When you connect the SUB-WOOFER, please make sure "NON-POWERED SUB". HOW TO CONNECT MUSIC A.V. SOURCE video out to input 1 CDG POWER W.S CDG PLAYER audio input A VIDEO MONITOR TV MUSIC INPUT A A B B audio input B to PC or scoring effect HIGH LOW SIGNAL SEND 100 Hz DVD video out to input 2 SUB-WOOFER FREQUENCY CONTROL POWER DVD PLAYER 10 Hz 1 k Hz 0 10 SUB-WOOFER VOLUME CONTROL HOW TO CONNECT RECORDER OUTPUT PRE L OUT R INPUT LINE REC R/CH1 L/CH2 CD RECORDER W-/CH3 W+/CH4 POWER AMPLIFIER 13 CD POWER HOW TO CONNECT YOUR MICROPHONE AMPLIFIER FRONT PANEL VOL BAL ECHO LOW MID HI -20dB GAIN MIC. 1 PEAK 0 10 VOL L5 BAL R5 0 10 ECHO -15 LOW +15 -12 +12 -15 MID +15 HI -20dB GAIN MIC. 2 PEAK 0 10 VOL L5 BAL R5 0 10 ECHO -15 LOW +15 -12 +12 -15 MID +15 HI -20dB GAIN MIC. 3 PEAK 0 10 L5 R5 0 10 -15 +15 -12 +12 -15 BATT LOW TWO CHANEL WIRELESS RECEIVER CHANNEL-A CHANNEL-B RF AF FREQ. POWER ANTENA-A VOLUME 5 10 15 20 -30 -25 -20 -15 25 -10 30 -5 35 40 0 PEAK 000.000 RF AF M MUTE H Z FREQ. DUAL CHANNEL VHF WIRELESS SYSTEM CNANNEL-A DISPLAY connect to wireless microphone receiver (MIC. 1) REAR (A) MIC INPUT 5 10 15 20 -30 -25 -20 -15 25 30 -10 -5 35 40 0 PEAK 000.000 CNANNEL-B DISPLAY M MUTE H Z VOLUME ANTENA-B connect to wireless microphone receiver (MIC. 2) REAR (B) MIC INPUT 1/4 1/4 XLR XLR It's your sound's of performance. 14 +15 BATT LOW ON ON OFF OFF AMPLIFIER DIMENSION MAINTENANCE Optional for 19" rack mount kit NOTE H. 7 inches L. 19 inches Front view H. 7 inches L. 17 inches Side view W. 16 inches Overall W. 18 inches Top view 1 14 inches W.18 inches 1 inches 15 TM ® Passionate about Music www.BetterMusicBuilder.com Printed on 100% Recycled Paper ©2007 Better Music Builder (USA) Comments E-mail to [email protected] All Rights Reserved in USA.