Audio Technica SmartMixer AT-MX341a Installation And Operation Manual Download | Manualshive

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AT-MX341a SmartMixer

®

Four-channel Automatic Microphone Mixer

Installation and Operation

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Summary of Contents for SmartMixer AT-MX341a

Page 1: ...AT MX341a SmartMixer Four channel Automatic Microphone Mixer Installation and Operation ...

Page 2: ...el 5 Installation and Setup 6 Priority Microphones and Lockout Bus 6 Preamplifier Gain 7 Output Gain 7 Phantom Power 7 Output Level LED Meter 8 Adjusting Off Attenuation 8 Control Voltage Out 9 Daisy chaining Mixers 10 Rack Mounting 10 Security Caps 10 Specifications 11 Warranty 12 2 ...

Page 3: ...he mode of each microphone channel can be indepen dently switched via the front panel priority pre select DIP switches The combination of switch settings results in three different modes of priority selection operation In any of the three modes of automatic operation when everyone stops talking the last microphone on will remain on In a teleconferencing recording or broadcast application this feat...

Page 4: ...trol Normal setting is fully clockwise full output If reducing the mixer s output is necessary carefully turn the control counter clockwise as needed with a small screwdriver Once set as desired the control may be protected from unauthorized adjustment by covering the panel hole with a sticker provided with the security caps This control does not affect the meter indication 8 Master Threshold Manu...

Page 5: ...ices such as speaker switching camera switching and indicator lights 4 Output Balanced line level output Can be changed to mic level output via internal switch see page 7 XLRM type connector 5 Inputs Balanced microphone inputs for low impedance dynamic or condenser mics Can be changed to line level inputs via internal switches see page 7 XLRF type connectors Figure 2 Rear panel 5 Input 2 Input 3 I...

Page 6: ...shold control fully counterclockwise In this mode the unit will behave like a conventional four channel microphone mixer all automatic functions are bypassed 12 The Master Level recessed control on the front panel may be adjusted with a small screwdriver if necessary This control is at the last stage in the mixer and does not affect microphone gain threshold setting or meter indication Priority Mi...

Page 7: ... for close talking it may be necessary to reduce the preamplifier gain This can be done by changing switch settings inside the unit With the unit unplugged remove the two screws on each side of the unit and remove the top cover Locate the internal switches designated on the circuit board by SW9 SW10 SW11 and SW12 Figs 3 and 4 page 8 Changing the settings of these internal switches will cause a gai...

Page 8: ...ully clockwise off attenuation is approximately 6 dB VR6 VR7 and VR8 control off attenuation for channels 2 3 and 4 respectively Figure 3 Internal view of mixer Figure 4 Detail of internal controls Front Panel Rear Panel Output Level LED Meter The Output Level LED meter is factory set to indicate RMS output Should peak output indication be desired simply unplug the unit remove the top cover and ch...

Page 9: ...urns on as indicated by a Selected Channel LED on the front panel the channel s associated Control Voltage Out goes high 4 VDC This signal can be used to light indicator lamps switch speaker zones on and off select video cameras etc The control voltage should not be connected directly to an inductive load such as a relay coil as damage to the mixer may result Several interface circuit possibilitie...

Page 10: ...s to the unit When using more than one SmartMixer in a system it may be advantageous to mount two mixers in a 1U rack space This can be accomplished using the two short rack ears and an optional joining plate Model AT8628 which allows two units to be connected side by side in a single rack space Security Caps For permanent installations where microphone selections positions and acoustic conditions...

Page 11: ... 12V AC 150 mA min Operating Temperature 32 to 104 0 to 40 C Dimensions 8 25 210 mm W x 9 38 327 mm D x 1 75 44 mm H including feet knobs and connectors Weight 3 lbs 7 oz 1 6 kg Included Accessories AC power supply AT8325 1 0 Link Cable Optional Accessory AT8628 Double Rackmount Joining Plate In the interest of standards development A T U S offers full details on its test methods to other industry...

Page 12: ... failure to use product in accordance with instructions This warranty is void in the event of unauthorized repair or modification For return approval and shipping information contact the Service Department Audio Technica U S Inc 1221 Commerce Drive Stow Ohio 44224 Except to the extent precluded by applicable state law A T U S will have no liability for any consequential incidental or special damag...

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