MX399 XLR 4-Microphone Multiplexer
The MX399 Microphone Multiplexer provides multiple microphone connections to SoundPro models SP395 Audio Integrator and SP495 Audio Consultant for testing, adjusting, and documenting the acoustically averaged frequency response of commercial/contractor venues for unsurpassed sound in the least amount of time. The MX399 equips the Sencore SoundPro with four microphone multiplexed sampling, as used by all major cinema/sound reinforcement/home theater organizations, for a good average of overall room response. It is battery operated and comes with batteries, 3 standard measurement microphones and 4 XLR cables.
Overview
The MX399 is a companion to the Sencore SP395 or SP495 SoundPro to help test, adjust, and document the acoustically averaged frequency response of multiple listening positions within cinema theaters, home theaters, churches, halls, banquet rooms, meeting rooms, clubs, or any other venue in which great sound in the least amount of time is a requirement.
The MX399 Microphone Multiplexer provides measurements of the average response of a listening room. This allows you to position subwoofers or adjust equalizers as you immediately see the measured results of your adjustments. When you complete your adjustments, you can store one RTA measurement to document the average response of the room.
Features
Provides a single, spatially-averaged acoustic input from up to four microphone positions for Real Time Analyzer measurements Provides a continuously-updated average measurement of the overall response of the listening area to allow easy equalization adjustments and average response documentation Avoids the problem of making room adjustments based on the acoustic response of just a single point in the room, or of manually averaging measurements to determine needed adjustments Performs four microphone multiplexed sampling, as used by all major cinema/sound reinforcement/ home theater organizations, for a good average of overall room response Measures the averaged output of two, three, or four attached XLR microphones, or monitors individual microphones for gain equalization Provides internal microphone supply voltages and preamps to eliminate the need for extra boxes and simplify setup Portable, battery-operated design eliminates the need for AC power connections. Unit power automatically controlled by connection to an SP395A or SP495 SoundPro.Specifications
| Frequency Response: | 20 Hz - 20 kHz ± 2 dB |
| Dynamic Range: | 25 dB to + 120 dB (SPL) input |
| Inputs: | |
| Microphone Inputs: | Four (matched to SP295C microphones) |
| Connector: | Balanced XLR Female |
| Input Impedance: | 40 kohms nominal |
| Gain/Cal. Adjustment: | ± 4 dB |
| Phantom Mic Power: | + 48 volts |
| Output: | |
| Output: | One (matched to SoundPro microphone input) |
| Connector: | Balanced XLR Male (pins 2 & 3 signal, pin 1 ground) |
| Output Impedance: | 110 ohms ± 20% |
| Microphone Selection: | |
| Microphone Selection: | Manual selection of Mic1, Mic 2, Mic 3, or Mic 4. Automatic alternating switched selection of attached microphones by sensing microphone phantom current. |
| Microphone Switching: | Variable |
| Minimum Range: | 0.5 sec. to 1.5 sec. (Factory adjust to approximately 1 second) |
| Power: | |
| Internal battery pack: | Six AA cells |
| Power Switching: | Controlled by SoundPro Phantom voltage output (-48V) |
| General: | |
| Size: | 3.25" x 7.5" x 4.25" (HWD) |
| Weight: | 1 lb. 5 oz. with supplied battery installed |
| phone 1.800.736.2673 | International 1.605.339.0100 |
