MIC 1 MIC 2 SOURCE MUSIC RIGHT MASTER LEVEL TREBLE BASS LEVEL TREBLE BASS LEVEL TREBLE BASS LEFT POWER OUTPUT LEVEL -13 -8 -3 0 +3 PROJECT MIX241 OPERATION MANUAL PROJECTMIX241 Please follow the instructions in this manual to obtain the optimum results from this unit. We also recommend that you keep this manual handy for future reference.
TABLE OF CONTENTS 1. SAFETY PRECAUTIONS .........................................................................................3 2. ATTENTION................................................................................................................ 4 3. GENERAL DESCRIPTION ......................................................................................5 4. FEATURES .................................................................................................................5 5.
1. SAFETY PRECAUTIONS Be sure to read the instructions in this section carefully before use. Make sure to observe the instructions in this manual as the conventions of safety symbols and messages regarded as very important precautions are included. We also recommend you keep this instruction manual handy for future reference.
2. ATTENTION When the Unit is in Use When Installing the Unit Do not place heavy objects on the unit as this may cause it to fall or break which may result in personal injury and/or property damage. In addition, the object itself may fall off and cause injury and/or damage. Never plug in nor remove the power supply plug with wet hands, as doing so may cause electric shock. When unplugging the power supply cord, be sure to grasp the power supply plug; never pull on the cord itself.
3. GENERAL DESCRIPTION This series two-channel pre-amplifier with the latest styles to meet the needs of small and medium sized public address system.Two-channel pre-amplifier has 2 inputs at the same time,cac enhance the audio signal simutenously . Two-channel audio pre-amplifier is the connector of all audiou sources (including common sources such as CD drive, modem, sound recording deck , MP3 players , special audio alarm and a variety of microphones ) and the power amplifier devices.
5. NOMENCLATURE AND FUNCTIONS MIC 1 MIC 2 SOURCE MUSIC RIGHT MASTER LEVEL TREBLE BASS 1 2 3 LEVEL TREBLE 4 5 LEVEL BASS 6 7 TREBLE POWER OUTPUT LEVEL -13 -8 -3 0 +3 LEFT BASS 8 9 10 11 12 13 14 15 16 1. MIC1 Volume Control 6. MIC2 bass adjustment 2. MIC1 treble adjustment 7. Line channels selector The treble response, clockwise rotation, 8. Line volume control MIC1 increase treble output , whereas 9. Line treble control reduced. 10. Line bass control 3.
NOMENCLATURE AND FUNCTIONS 5.2 REAR PANEL 26 VOLTAGE SELECTOR R I G HT O UTPUTS L E F T REC LINE 4 LEFT 25 LINE 2 LINE 3 GAIN GAIN GAIN LINE 1 GAIN 1 MIC1 PRIORITY 2 MIC2 PRIORITY 3 MIC2 +48V PHANTOM 4 MIC1 +48V PHANTOM INPUTS MIC 2 MIC 1 MIC MIC ALARM 1234 2 1 125mV-1.2V 10k 2 3 0.775V/600 17 125mV-1.2V 10k 125mV-1.2V 10k 125mV-1.2V 10k 1 2 ON 3 2 20 17. ~ 230V 50Hz power input GAIN 3 4mV-45mV/600 19 1 4 0.
6 . O P E R AT I O N I L L U S T R AT I O N 6.1 Power LED 6.
6 . O P E R AT I O N I L L U S T R AT I O N 6.4 Left and Right channel line output jack about (XLR) 18 1 R I G HT O UTPUTS L E F T VOLTAGE SELECTOR REC LINE 4 LEFT LI NE 2 LINE 3 GAIN GAIN LI NE 1 2 GAIN GAIN I NPUTS MIC1 PRIORITY MI C 2 MIC2 PRIORITY 3 MIC2 +48V PHANTOM 4 MIC1 +48V PHANTOM MI C 1 MIC MIC 2 1234 1 RIGHT 1 125mV-1.2V 10k 2 3 0.
6 . O P E R AT I O N I L L U S T R AT I O N 6.6 LINE(1~4) Line Inputs 20 VOLTAGE SELECTOR R I G HT O UTPUTS L E F T REC LEFT LINE 4 LINE 2 LINE 3 LINE 1 GAIN GAIN GAIN GAIN 125mV-1.2V 10k 125mV-1.2V 10k 125mV-1.2V 10k 125mV-1.2V 10k 1 MIC1 PRIORITY 2 MIC2 PRIORITY 3 MIC2 +48V PHANTOM 4 MIC1 +48V PHANTOM INPUTS MIC 2 MIC 1 MIC MIC 2 1 1 USE ONLY WITHA 250W FUSE 2 3 0.775V/600 CD 3 1 LINE 2 GAIN 1 3 1 2 ON 2 3 LINE ALARM 1234 RIGHT GAIN 3 4 4mV-45mV/600 0.
6 . O P E R AT I O N I L L U S T R AT I O N 6.8 MIC 1/MIC 2 balanced microphone input and Stubbs address code switch 22 23 1 VOLTAGE SELECTOR R I G HT O UTPUTS L E F T REC LEFT LINE 4 LI NE 2 LINE 3 LI NE 1 GAIN GAIN GAIN GAIN 125mV-1.2V 10k 125mV-1.2V 10k 125mV-1.2V 10k 125mV-1.2V 10k I NPUTS MIC1 PRIORITY 2 MIC2 PRIORITY 3 MIC2 +48V PHANTOM 4 MIC1 +48V PHANTOM MI C2 M I C1 MIC 3 0.
7.EQUIPMENT INNER DRAWING Power Input Audio PCB Board Transforma Power switch audo PCB board Panels 8. INSTALLATION STEPS 4 1 R I G HT O UTPUTS L E F T VOLTAGE SELECTOR REC LINE 4 LEFT LINE 2 LINE 3 LINE 1 GAIN GAIN GAIN GAIN 125mV-1.2V 10k 125mV-1.2V 10k 125mV-1.2V 10k 125mV-1.2V 10k INPUTS MIC1 PRIORITY 2 MIC2 PRIORITY 3 MIC2 +48V PHANTOM 4 MIC1 +48V PHANTOM MIC 2 MIC 1 MIC 1 2 ON 3 1 1 LINE GAIN 2 1 GAIN 3 4 4mV-45mV/600 0.775V/600 2 3 2 3 2 3 0.
3 1 0 4 5 6 10 ON POWER 9 7 8 0.775V/600 1 3 2 MIN MAX CH 2 VOLUME CH 1 VOLUME MAX CH 2 CH 1 MIN SIGNAL CLIP PROT SIGNAL CLIP PROT 0.775V/600 R I G HT O UTPUTS L E F T 2 2-CHANNEL AMPLIFIER USE ONLY WITHA 250W FUSE VOLTAGE SELECTOR 350-WATT AMPLIFIER RIGHT LEFT REC 125mV-1.2V 10k GAIN LINE 4 LINE 3 125mV-1.2V 10k GAIN LINE 2 LINE 1 125mV-1.
MIC2 MIC1 PH PH AMP LINE3 L3 L4 GAIN GAIN AMP L2 GAIN GAIN AMP L1 GAIN AMP AMP LINE2 LINE4 AMP LINE1 GAIN VOL VOL SW TRIG VOL LOW HIGH LOW HIGH ALARM LOW HIGH L/R L/R L/R L/R R L LEVEL LEVEL R OUTPUT SIG PEAK L OUTPUT SIG PEAK REC OUT 10.
11. SPECIFICATIONS LINE1-4 INPUTS PROJECTMIX241 MODEL Frequency Response Sensitivity 20Hz-20kHz 195mV (-12dBu) to 2.0V (+8dBu) 47k Input Impedance 20dB range Input Gain Control Distortion Noise Equalisation 0.5dB <0.05% 20Hz -20kHz -90dB A weighted (0dB gain) TREBLE: 10dB/10kHz BASS: 10dB/100Hz Microphone1-2 Inputs Frequency Response 100Hz / -3dB(filter) 20kHz 0.5dB <0.
12. DIMENSIONAL DIAGRAM U N I T: m m SOURCE MUSIC RIGHT TREBLE BASS LEVEL TREBLE LEVEL BASS TREBLE POWER OUTPUT LEVEL -13 MASTER LEVEL -8 -3 0 +3 LEFT BASS 48 MIC 2 45 MIC 1 PROJECT MIX241 484 436 REC LEFT LINE 4 LINE 2 LINE 3 GAIN GAIN LINE 1 GAIN GAIN 1 MIC1 PRIORITY 2 MIC2 PRIORITY INPUTS MIC 2 3 MIC2 +48V PHANTOM 4 MIC1 +48V PHANTOM MIC 1 MIC MIC 2 1 RIGHT 125mV-1.2V 10k 2 3 0.775V/600 125mV-1.2V 10k 125mV-1.2V 10k 1 2 ON 125mV-1.
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