Live Mix Pro 32-8 ORDERCODE D2251
8 BUS MIXING CONSOLE Introduction Thank you for purchasing a 8 Bus SERIES Mixing Console. The 8 Bus Series provides an excellent balance of operability, functionally and ease of use. In order to take full advantage of the 8 Bus Series capabilities and enjoy years of trouble-free use,please read this Manual carefully.
8 BUS MIXING CONSOLE Features 1. 32/40 CHANNELS MONO INPUTS 8 Mixing Console provideds 32,40 channels of mono input that can be mixed down to a Stereo Mix, 8 Groups, 8 Aux sends. 2. 4 CHANNELS STEREO INPUTS These mixing consoles provides 4 channels of stereo channel input that can be mixed down to a Stereo Mix , 8 Gropus, 8 Aux sends. 3. 8 AUX SENDS, 6 STEREO AUX RETURNS 8 AUX SENDS systems and 6 STEREO AUX RETURN systems are provided.
8 BUS MIXING CONSOLE 12. 100mm FADER For easy set up and input,group master fader is used by Smooth and noise reduction 100-mm faders. 13. DC 12V LAMP CONNECTOR A BNC type LAMP connector is provided on the right hand side of the mixing console panel, allowing you to operate the mixer conveniently under dark condition. 14. External Power Supply This system is used by high capaciry,high performance external power supply with current limiter. Precautions 1.
8 BUS MIXING CONSOLE Front Panel Controls 1. MONO INPUT SECTION 1. PEAK INDICATOR 1 2 31 4 5 This indicator detects peak level after the EQ.It will light red at 3dB before clipping to warn that clipping level has nearly been reached. Peak indicator is not going through MIX B Section. 2. SIGNAL INDICATOR This indicator detects signal level after the EQ. It will light green at - 10dB. Signal indication is not going through MIX B Section. 6 3.
8 BUS MIXING CONSOLE 1)HIGH:12KHz±15dB shelving type LOW:80Hz, ±15dB shelving type +20 7. 4BAND EQ CONTROLS(HIGH, HI-MID , LOW-MID, LOW) +15 +10 +5 This is a 4 - band equalizer with center frequencies, range, and type as shown below. The frequency response is flat when the knob is in the center position. +0 -5 -10 -15 10 20 50 100 200 500 1K 2K 5K 10K 20K 50K -20 2)HI-MID:800Hz-8KHz(variable) ±15dB peaking type 8. AUX 1~8 CONTROLS This knobs control the level of the signals sent to AUX buses.
8 BUS MIXING CONSOLE 11. PAN CONTROL FOR MIX-B The PAN control routes the channel's MIX-B signal across the left and right MIX-B buses. 11 12. LEVEL CONTROL FOR MIX-B 12 The LEVEL control sets the level of the channel sent to the MIX-B buses. The gain structure of the circuit(like the AUX sent 1-6 circuit) includes extra amplification. 13 11 14 11 15 13. SPLIT EQ SELETOR Each channel strip has a dual signal path with extremely flexible switching .
BUS MIXING CONSOLE 14. SOURCE SWITCH When the MIX-B SOURCE switch is up,MIX-B receives its input from the FLIP switch 5 .Remember,the FLIP switch alternates MIC/LINE or TAPE to channel strip and to MIX-B. - With TAPE as an input (SOURCE up to select the FLIP switch and MIC/LINE or TAPE switch in the up position),the MIX-B section functions as a tape monitor sub-mix, allowing you to listen to the inputs and outputs of your multi-track record as you record.
8 BUS MIXING CONSOLE ※ Modification These modifiction instructions are for use by qualitied personal only. - AUX Send 1～4 modifiction This modifiction changes the option point of all "pre"AUX sends from pre-EQ to post-EQ. It must be done on each channel.For example,if you have a 24 channel modifiction must be done on all 24 input channel.See below figure.
8 BUS MIXING CONSOLE 2. STEREO INPUT SECTION 1. PEAK INDICATOR This indicator detects peak level after EQ.It will light red at 3dB before clipping to warn that clipping level has nearly been reached. 1 2 2. SIGNAL INDICATOR 3 This indictor detects signal level after the EQ . It will light green at -10dB. 3. EQ CONTROLS(HIGH,LOW) 4 This is a 2-band frequency fixed equalizer with center frequencies range and type as shown below. HIGH: 12Hz,±15dB shelving type LOW: 80Hz,±15dB shelving type 5 4.
8 BUS MIXING CONSOLE 7. GROUP SELECTOR (GROUP BUS ASSIGH SWITCH) When these switch are on , the signal of each channel will be sent to the 8 GEROUP buses. These switches is arranged in two columns. Odd numbered Left(Group 1, 3, 5, 7) and even numbered, Right(Group 2, 4, 6, 8) indicating which "side" of the BALANCE control they will be assigned to. 8.
PEAK GR 1 CH1 LEVEL 3 GR 2 -10dB MUTE HA L/MONO GR 3 +4dB GR 4 GR 5 PAD STEREO -10dB BALANCE INPUT +4dB LOW GR 6 HIGH GR 7 GR 8 LEVEL ST L -10dB R ST R HA +4dB PRE AUX1(CH1,3) TONE PRE AUX1(CH1,3) SOLO SIGNAL PEAK B+ GR 1 CH2 4 LEVEL -10dB L/MDNO GR 2 MUTE HA GR 3 +4dB GR 4 GR 5 STERCO -10dB PAD INPUT +4dB LOW HIGH GR 6 BALANCE GR 7 GR 8 ST L -10dB R ST R HA +4dB TONE POST AUX(CH2,4) POST AUX(CH2,4) B+ SOLO SOLO L SOLO R 1 2 3 4 5 6 7 8 AUX AUX AUX AUX
8 BUS MIXING CONSOLE 3. AUX RETURN SECTION 1. L/R (STEREO) SWITCH When this switch is on ,the signal of each AUX RETURN will be sent to the MIX L/R buses. When this switch is off, the output signal to MIX L/ R buses will be muted. 2. GROUP SELECTOR (GROUP BUS ASSIGN SWITCH) When these switches are on , the signal of each AUX RETURN will be sent to the 8 GROUP buses. 1 3. BALANCE CONTROL This control directs the signal coming from the AUX RETURN level control into the left and/or right channels.
8 BUS MIXING CONSOLE 4. AUX SEND SECTION 1. MUTE SWITCH When this switch is engaged, the signal from each respective AUX SEND will be muted to the corresponding AUX sent connector. 1 2. SOLO SWTCH 2 when you wish to monitor the output signals being sent to AUX SEND 1~6 , press the appropriate switch. 3 3.
8 BUS MIXING CONSOLE 5. GROUP SECTION 1. TO MIX SWITCH When this switch is on, the signal of each GROUP will be sent to the STEREO MIX L/R buses. 1 2 3 2. MUTE SWITCH When this switch is on, the signal of each Group will not be sent to the Group connectors. 4 3. SOLO SWITCH Pressing this switch will allow you to monitor the output signals being sent to Group 1~8, press the appropriate switch. 4. PAN CONTROL This control adjusts the panning of the GROUP signal sent to the STEREO MIX L/R buses. 5 5.
8 BUS MIXING CONSOLE 6. MASTER SECTION 1. TO MIX SWITCH 1 1 When this switch is on , the signal of MIX-B will be sent to the STEREO MIX L/R buses. 2 2. MIX-B CONTROL 3 1 This control adjust the MIX-B final level of the combined signals from all channels and send them to the MIX-B output jacks. 3. STUDIO OUT CONTROL This is a stereo level control for the studio. This circuit monitors the left/right SOLO buses. 4 4.
8 BUS MIXING CONSOLE 7. CONTROL ROOM and MONO SECTION 1. SOURCE SELECTOR SWITCH The control room monitors and the studio playback monitors are both controlled from this console. A bank of switches selects the stereo sources available to the speakers from L/R MIX , MIX-B, 2-TRACK and EXTERNAL. You can select any combination of signal source. 1 2 2. CONTROL ROOM CONTROL This is a stereo level control for the studio monitor. This circuit monitors the left/right SOLO buses. 3.
SA SA SA SA AUX 7 AUX 8 EXTERNAL 2-TRACK MIX-B EXTERNAL AUX 7/8 AUX 5/6 MIX-B MONITOR AUX 5 AUX 6 MAIN MIX TO MIX SOLO CONTROL LEVEL LED METER (MONITOR R) LED METER (MONITOR L) LA LA LEVEL MIX - B (R OUT) MIX - B (L OUT) CONTROL ROOM OUTPUT R +4dB CONTROL ROOM OUTPUT L +4dB STUDIO OUTPUT R +4dB STUDIO OUTPUT L +4dB HEADPHONES 100mW TIP - LEFT RING - RIGHT MIX - B R +4dB MIX - B L +4dB 8 BUS MIXING CONSOLE 17 MIX L MIX R AUX 1 AUX 2 AUX 3 AUX 4 AUX 5 AUX 6 AUX 7 AUX 8 SOLO L
8 BUS MIXING CONSOLE 8. TALKBACK/HEADPHONE SECTION 1 2 3 4 1. TALKBACK MICROPHONE INPUT CONNECTOR This input connector is used to input microphone signals for announcements from the mixer operator. The nominal input signal level is -50dB and is designed for dynamic microphones. Please note that this input has no phantom power connection and will not operate condenser microphones that require it. 2.
8 BUS MIXING CONSOLE 6. PHONES GAIN The PHONE GAIN control sets the level at the HEADPHONE jack. 7. HEADPHONE MONITOR SELETOR This contains a stereo level control for the headphones outputs ,a stereo SOLO switch, six push buttons to select from the following signal source: MONITOR, MIX-B, AUX SENDS 3＆4, AUX SENDS 5＆6, AUX SENDS 7＆8, and EXTERNAL. You can select any combination of source.
8 BUS MIXING CONSOLE 9. MASTER LED SECTION 1 2 3 1 5 4 6 7 1. GROUP OUTPUT LEVEL INDICATOR (8 GROUPS) A vertical row of ten light-emitting diodes shows the continuous output level of Group output. For optimum signal-to-noise (s/n) ratio, try to adjust all levels so that program material is usually at or around 0 VU, with occasional but mot steady excursions to the +3,or over the level scale. 2.
8 BUS MIXING CONSOLE 6. LAMP CONNECTOR A BNC type socket is provided on the right hand side of the mixing Console panel to accommodate a flexible gooseneck lamp, allowing operation of the board under dark conditions. This lamp is available from many professional sound dealers and attaches without tools. The voltage at the socket is 12V DC at a maximum of 250 MA. 7. POWER SWITCH This switch turns the power ON/OFF .and the power indicator will light in the “ON” position, the power indicator will light. 10.
8 BUS MIXING CONSOLE Rear Panel Controls 1. INPUT SECTION CONNECTORS 1 2 1 3 1 4 5 1. BALANCED LOW-Z MIC INPUT CONNECTORS A 3-pin XLR-type connector is used for balanced low impedance microphone inputs. (1: sleeve , 2: hot , 3: cold) Microphones of 50-600Ω line level devices can be connected here. When the PHANTOM switch is turned on, DC +48V will be supplied to pins 2 and 3 of these connectors.
8 BUS MIXING CONSOLE 2. PHANTOM POWER SWITCH When is the “ON”position, 48V DC phantom power will be provided between pin 2 and 3 of the XLR-type jack. if you do not need phantom ,be sure to turn this to the “OFF” position. 3. BALANCED LINE INPUT CONNECTORS A standard 1/4″phone jack is used for balanced or unbalanced line level signals. Examples of line level signals include most electronic keyboards ,synthesizers ,turn-tables ( with appropriatepreamps),tape decks and the line outputs from other mixers.
8 BUS MIXING CONSOLE 2. OUTPUT SECTION CONNECTORS 6 2 7 3 8 9 10 12 11 11 1 4 5 1. 4 STEREO INPUT JACKS These are unbalanced 1/4″phone jacks which input a stereo source with a nominal input and impedance of +4dB -10dB/600Ω. If a plug is inserted only in L/MONO, the same signal will be sent to both the L and R buses. 2. 6 AUX RETURN JACKS These are unbalanced 1/4 ″phone jacks with a nominal level and impedance of +4dB/10kΩ.
8 BUS MIXING CONSOLE 4. 8 GROUP OUTPUT JACKS These connectors deliver the main GPOUP output signal to the power amplifiers which will drive the main house speakers in a sound reinforcement system. These are electronically balanced outputs with a rated level / impedance of + 4dB / 600Ω. Each group output connector is connected another 2 jacks in parallel as follows.
8 BUS MIXING CONSOLE 14 13 9. 2-TRACK IN CONNECTOR The 2- TRACK IN jack are 1/4 ″TRS unbalanced , with tip high and ring and sleeve tied together to ground. Usually, you will have the 2TRACK INPUT connected to the output of your 2-Track master record. 10. EXTERNAL INPUT CONNECTOR The EXTERNAL INPUT jacks are 1/4″TRS unbalanced , with tip high, and ring and sleeve tied together to ground .
8 BUS MIXING CONSOLE General Wiring Procedures To take full advantage of the excellent signal to noise ratio and low distortion of consoles care must be taken to ensure that incorrect installation and wiring does not degrade the performance of the desk. Hum, buzz , instability and Radio Frequency interference can usually be traced to earth loops and inferior earthing systems.
8 BUS MIXING CONSOLE Audio Wiring Noise immunity is improved significantly by the use of low impedance sources, such as good quality professional microphones or the outputs from most modern audio equipment . Audio cheaper high impedance microphones, which may suffer from interference over long cables runs, even with well-made cables.
8 BUS MIXING CONSOLE To minimize the adverse affects of the unwanted coupling to the signal wires, it is important that the screen is connected at one end only , i.e. the screen must not carry signal current . Any signal on the wires within the signal, either directly , if the screen is connected at signal source end, or indirectly via the earthing system, if the signal is connected at the signal destination end.
8 BUS MIXING CONSOLE Audio Connectors Two different types of audio connectors are used, 3-pin XLR and 1/4″there pole('A' gauge)jacks. These are used in several configurations as shown below.
8 BUS MIXING CONSOLE Grounding on the Road Many of the above procedures are difficult to use on the road .For example , the telescoping shield concept is nearly impossible to use on a portable cable. Similarly , it is a difficult and time consuming process to search for a water pipe ground every time the system is moved from one performance to another . Yet portable systems can be extremely complex, and may have major grounding problems.
8 BUS MIXING CONSOLE CONNECTOR AND CABLE CONFIGURATIONS REMOTE DEVICE DESCRIPTION CABLE REMOTE SIDE OF CABLE (Connector type) White(Red)HIGH Black/Low 2 2 A.XLR** 3 3 Shield/GND 1 Floating or Balanced 1 (XLR) low impedance:most White(Red)HIGH Black/Low professional equipment T line in and line out, 2 S R microphones 3 B.TRS PHONE Shield/GND 1 (XLR) White(Red)HIGH Black/Low T Unbalanced low impedance:some 2 S C.
8 BUS MIXING CONSOLE Applications Examples 1. PA and Sound Reinforcement From a features standpoint , 8 Bus Series consoles are easy to configure for public address and sound reinforcement applications, whether you are mixing the house,stage monitors or both at once.Use the L/R main mix buses and your main L/R outputs as your main signal path. If you want a headphone cue mix , either patch the Control Room outputs to a suitable headphone amplifier or select MONITOR as the source for phones.
8 BUS MIXING CONSOLE 2. Recording System The recording process can be as simple as one microphone recorded on a monaural tape record. As in the PA sound reinforcement system shown previously , balanced microphones are plugged directly into the channel XLR input connectors, while unbalanced electronic instrument outputs (synthesizers,etc.) are connected via a balancing transformer type direct box.
8 BUS MIXING CONSOLE Applications-1 PA&SOUND REINFORCEMENT CONNCTION Keyboard other line level input IN OUT Digital Delay Keyboard other line level input Studio monitors Studio monitors Keyboard other line level input POWER SUPPLY Amplifier Vocal Microphones Graphic Equalizer Some as AUX Send 6 IN OUT Graphic Equalizer OUT Amplifier DAT or Cassette Deck IN Stereo Compressor Control Room Monitor Any Line Level Input OUT IN Noise Gate OUT OUT Graphic Equalizer IN Reverb 1 IN OUT IN
8 BUS MIXING CONSOLE Applications-2 OVER DUBBING CONNECTION Control Room Monitor 1 IN Tape Deck 2 Vocal Microphones Amplifier OUT IN 3 Tape Deck OUT IN POWER SUPPLY Tape Deck OUT Out Reverb 1 Vocal Microphones Vocal Microphones Guitar Effects Box Any Line Level Input Keyboard other line level input OUT Mono Compressor 36 IN In
8 BUS MIXING CONSOLE Applications-3 Control Room Monitor MULTI-TRACK MIXING CONNECTION Studio monitors Studio monitors 1 IN Tape Deck OUT Amplifier 2 Reverb Tape Deck IN IN OUT OUT 3 Tape Deck Vocal Microphones Digital Delay IN OUT OUT OUT IN IN IN Stereo Reverb DAT or Cassette Deck Keyboard other line level input IN Stereo compressor OUT Processor Keyboard other line level input IN OUT OUT IN Noise Gate OUT OUT IN IN Mono compressor Digital Delay 37
R INPUT +4dB L/MDNO CH2 R CH2 INPUT +4dB R L EXTERNAL R L 2-Track TALK BACK -50dB R AUX RETURN 1-6 L/MONO STEREO -10dB STEREO -10dB CH1 L/MONO DIRECT OUT 0dB TAPE IN LINE -20dB 2 3 1 4 4 3 2 3 1 FLIP HA HA HA HA HA HA HA OPTIONAL METER BRIDG TAPE IN TRIM LEVEL +4dB -10dB +4dB -10dB +4dB -10dB +4dB -10dB HA MIC/LINE HA -18dB/-80dB 80Hz 18dB/-8dB HPF CHANNEL INSERT 0dB FREQ FREQ PEAK SIGNAL LOW PEAK SIGNAL HIGH TONE LOW TONE CHANNEL MIX-B SOUR
8 BUS MIXING CONSOLE Specifications *0dB=0.775Vrms,0dbV=1Vrms -GENERAL Maximum Output Level (0.5% THD at 1kHz) Output Level T.H.D Frequency Response Hum and Noise (Average,Rs=150Ω) Maximum Voltage Gain Crosstalk(at 1kHz) Gain Control (Input Channel) Input Channel Equalization +24dB(MIX L/R,GROUP OUT,MONO OUT)@600Ω +20dB(DIRECT OUT,AUX SEND 1-8)@600Ω +20dB(INSERT) @10kΩ +20dB(CTRL ROOM,STUDIO OUT)@600Ω More than 100mW(HEADPHONES)@40Ω 0dB(@10kΩ):INSERT 0dB(@600Ω):DIRECT OUT <0.
8 BUS MIXING CONSOLE - INPUT Intput Connector CH Mic Input Impedance 4kΩ Nominal Impedance 50~600Ω CH Line 10kΩ 600Ω -20dB Stereo Input 5kΩ 600Ω -10dB 2-Track External Input AUX Return 10kΩ 600Ω 10kΩ 600Ω -10dBV +4dB 0dB 10kΩ 600Ω +4dB Tape In 10kΩ 600Ω -10dB Group Out Insert In 10kΩ 600Ω 0dB Talk Back 10kΩ 600Ω -50dB Output Impedance 150Ω 150Ω 75Ω 75Ω 75Ω 150Ω 600Ω Nominal Impedance 600Ω 600Ω 600Ω 600Ω 600Ω 10Ω Input Nominal Level +4dB +4dB +4dB +4dB +4dB +4dB 0dB Output
Contents 1. Introduction ............................................................................................................................. 1 2. Upacking and Installation ...................................................................................................... 1 3. Features .................................................................................................................................... 2 4. Precautions ...............................................................
2006 Dap Audio.
