SMARTMIXER® FIVE-CHANNEL AUTOMATIC MIXER
The AT-MX351a automatic mixer is ideal for meetings, seminars, teleconferencing, worship services, courtroom proceedings, radio and TV broadcasting and A/V applications. All switching is under microprocessor control with proprietary algorithms for instant, seamless operation. An individual priority pre-select switch for each mic/line channel allows choice of one-channel-at-a-time operation, all active, or any mix of moderator override. The last microphone on stays on so that ambient sound is never muted. Plus, any number of SmartMixers can be linked to create a system for large multi-mic installations. The priority control system extends throughout the entire chain.
- Four automatic Mic/Line inputs, plus Aux in
- Automatic threshold setting
- 48V phantom power individually selectable for each channel
- Limiters on each mic channel prevent individual channel overload
- Balanced inputs and output, selectable Mic/Line-level
- Individual gain controls for each channel
- Switchable manual mode overrides automatic functions
- Master output level control Pre- or post-controller audio outputs from Mic/Line channels
- Off attenuation for each input adjustable to -40 dB
- Sub-D connector for TTL output, plus closure-control input for external control of each channel
- NOMA operation provided, can be turned on/off
- Output level meter with Peak and RMS modes
- Monitor headphone output with adjustable level
- Internal AC supply
- Mounts in a single 19" rack space
- Includes rack mount adapters/li>
Input Impedance | Mic 8 kΩ, Line 50 kΩ , Aux 50 kΩ , Link 20 kΩ |
Output Impedance | Balanced Line 200 Ω, Mic 300 Ω, Unbalanced 400 Ω, Link Out 100 Ω, Preamp Out 750Ω |
Maximum Input Level | Mic -24 dBV, Line + 27 dBV, Aux +17 dBV |
Maximum Output Level | +22 dBm |
Nominal Output Level | (0 VU) Balanced Line +4 dBm (600 Ω), +4.4 dBV (open circuit), Mic -46 dBm (600 Ω), -44 dBV (open circuit), Unbalanced -10 dBV (open circuit), Preamp Out -10 dBV (open circuit) |
Maximum Monitor Output | 700 mW, 20 Ω load |
Maximum Gain | 73 dB |
Frequency Response | 40 - 22,000Hz |
Equivalent Input Noise | -128 dBV (150 Ω) @ maximum power |
Input Attenuation | 10 dB |
Mic/Line Input Pads | 50 dB |
Maximum NOMA Attenuation | Approximately 20 dB (up to 100 microphones on simultaneously) |
Microphone Phantom Power | +48 V DC |
Control Voltage Out | +4 V DC |
Power Supply | 100V-240V AC, 50-60 Hz, 30W |
Operating Temperature | 0 - 40 ºC |
Dimensions | 430 x 238 x 44mm (WDH - including feet, knobs and connectors) |
Weight | 3.35 kg |
Accessories Included | System link cable, manual, rack adaptors, AC power supply |
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