6-Channel USB Microphone Mixer
6-channel microphone mixer and preamp with stereo USB 2.0 and balanced analog line-level audio output.
The MMX-6-USB 6-channel stereo microphone mixer is designed to connect up to six dynamic or condenser microphones to a USB 2.0 audio system. A line-level output is also available to allow the mixer to be used as a microphone preamp for audio devices without microphone-level inputs. Its compact form factor facilitates flexible installation, with surface, wall, and DIN rail mounting options all supported via included hardware. Rack mounting is also supported via an optional mounting kit (sold separately).
Microphone Mixing
To support compatibility with condenser microphones, the MMX-6-USB features 48V phantom power on each of its individually selectable six microphone inputs. Each input and output has a 90 dB level adjustment range. Individual inputs may be assigned to one or both channels of the mixer's stereo output. The built-in low-cut filter can be enabled at the output to reduce low frequency noise below 100 Hz.
USB and Analog Outputs
The MMX-6-USB features both stereo USB 2.0 and analog line-level outputs to support compatibility with a broad range of audio devices. The USB 2.0 output allows for direct connection to a Macintosh® or Windows® PC for audio input to software applications. The balanced analog output provides a line-level signal which can be connected to a line-level input of most conventional audio devices. Both the USB and analog outputs pass the same audio content and can be used simultaneously.
Integrator Friendly Enclosure
The MMX-6-USB features the Crestron Integrator Friendly Enclosure (IFE) that enables a variety of installation options. Multiple IFE compliant devices can be stacked together. Surface, wall, and DIN rail mounting are all supported using the included hardware. The RMK-IFE-1U mounting kit is also available to mount multiple IFE devices in a 1RU rack space (sold separately). All controls on the unit are screwdriver adjustable to prevent accidental changes to the settings after initial configuration.
Key Features
- 6-channel microphone mixer
- Stereo USB 2.0 output
- Stereo balanced analog line-level output
- 48V phantom power available per input channel
- Output bus routing selectable per input channel
- Selectable 100 Hz low-cut output filter
- Compact, stackable IFE medium form factor
- Surface or DIN rail mountable using bracket provided
- Rack mountable using RMK-IFE-1U (sold separately)
- Screwdriver adjustable controls
- External 100-240V universal power pack included
| Audio |
| Sampling Rate and Bit Depth |
48 kHz, 16-bit |
| Frequency Response |
20 Hz to 20 kHz, ±0.5 dB |
| S/N Ratio |
100 dB (single channel @ 0 dB level settings) |
| THD+N |
<-100 dB |
| Crosstalk |
>70 dB |
| Communications |
| USB |
USB 2.0 device for connection to a codec or a PC |
| Connectors |
| 12VDC 0.5A |
(1) 2.5 x 2.5 mm DC power connector;
12VDC power input;
PW-1215WU power pack included |
| G |
(1) 4-40 screw, chassis ground lug |
| USB |
(1) USB Type Mini-B 5-pin, female;
USB 2.0 device port;
15 ft (5 m) Type Mini-B 5-pin male to Type A male cable included |
| AUDIO OUTPUT, L/R |
(1) 5-pin 3.5 mm detachable terminal block;
Balanced/unbalanced stereo line-level audio output;
Output Impedance: 200 Ω balanced, 100 Ω unbalanced;
Maximum Output Level: 7.75 Vrms (+20 dBu) balanced, 3.88 Vrms (+14 dBu) unbalanced |
| INPUT 1 – 6 |
(6) 3-pin 3.5 mm detachable terminal blocks;
Comprises (6) balanced microphone audio inputs;
Input Level: 0.008 Vrms (-40 dBu) nominal, 0.775 Vrms (0 dBu) maximum;
Input Impedance: 2 kΩ balanced, 1 kΩ unbalanced;
Phantom Power: 48VDC, selectable per channel |
| Controls & Indicators |
| BUS ASSIGN L/+/R |
(6) screwdriver-selectable 3-position slide switches;
Routes the corresponding input to the left (L), right (R), or both (+) output buses |
| 1 – 6 Level |
(6) screwdriver-adjustable rotary controls;
Adjusts the signal level for the corresponding input;
Adjustment Range: -80 to +10 dB |
| 1 – 6 Signal |
(6) bi-color green/red LEDs;
Each indicates signal presence (green) and clipping (red) for the corresponding input;
Onset of red indicates a signal level within -2 dB of full scale, while full red brightness indicates signal has reached full scale |
| LOW CUT |
(1) screwdriver selectable 2-position slide switch;
Enables or disables built-in 100 Hz low-cut output filter |
| MASTER Level |
(1) screwdriver-adjustable rotary control;
Adjusts the output signal level
Adjustment Range: -80 to +10 dB |
| MASTER Signal |
(1) bi-color green/red LED;
Indicates post-fader signal presence (green) and clipping (red);
Onset of red indicates a signal level within -2 dB of full scale, while red at full brightness indicates signal has reached full scale |
| PWR |
(1) green LED;
Indicates operating power supplied via the external power pack |
| PHANTOM POWER 1 – 6 Switches |
(6) screwdriver selectable 2-position slide switches;
Enables or disables phantom power for the corresponding input |
| PHANTOM POWER 1 – 6 Indicators |
(6) red LEDs;
Indicates phantom power is enabled for the corresponding input |
| Power Requirements |
| Power Pack |
0.5 Amps @ 12 Volts DC;
100-240 Volts AC, 50/60 Hz power pack, model PW-1215WU included |
| Environmental |
| Temperature |
41° to 113° F (5° to 45 ° C) |
| Humidity |
10% to 90% RH (non-condensing) |
| Construction |
| Enclosure |
IFE medium form factor, black and blue plastic |
| Mounting |
Freestanding, stackable, surface mount, or 35 mm DIN EN 60715 rail mount;
Surface/DIN rail mounting bracket included;
Optional rack mount kit (RMK-IFE-1U)sold separately |
| Dimensions |
| Height |
1.37 in (35 mm);
1.78 in (46 mm) with bracket |
| Width |
7.01 in (178 mm);
7.35 in (187 mm) with bracket |
| Depth |
7.01 in (178 mm) |
| Weight |
|
1.2 lb (545 g)
|
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