Express Box MKII

For Simple Commentary Situations

  • 2 commentary positions
  • 4 external monitor inputs
  • Sidetone (own voice) monitor circuit
  • Other commentator monitor circuit
  • 2 common talkback circuits
  • Operation of talkback buttons configurable
  • Mic inputs with selectable 48V phantom power
  • 7 LED PPM meter
  • Easy to use and cost effective

Description

The Express Box MKII was designed to provide a quick and easy solution when it is necessary to provide interfacing for 2 commentators, with simple facilities. This high quality commentary unit is ideal for those looking for cost effective solutions without paying for unwanted features; the Express Box MKII is worthy of investigation.

Inputs
2 front panel mic inputs with selectable 48V phantom power.

Outputs/Talkback
Each mic input has its own individual output. There is also a mixed output of the 2 mic inputs. The 2 talkback circuits have individual outputs and are common for both commentators.

Monitoring
There are 4 inputs for external sources, one sidetone pot of their own voice and one other commentator pot for listening to the co-commentator. These are available independently to each commentator on individual pots, so each can adjust the inputs for their own preference of mix level. There are two 6.35mm headphone sockets – 1 for each commentator. A 7 segment LED PPM meter displays level.

Specification

MICROPHONE INPUTS
Mic Lineup Gain (Dynamic) 54dB
Mic Lineup Gain (Phantom Power) 44dB (37dB via internal link)
Input Impedance 1k2
Phantom Power 48 Volts @ 6mA
Equivalent Input Noise 124dBu (22-22kHz RMS terminated 300 Ohms)
Maximum Input Level
  • Dynamic Mic: -19dB
  • Mic + 48V PH: -2dB
Band Pass Filter -3dB points are 30Hz and 22kHz
Frequency Response -1dB 40Hz to 15.2kHz
Headphone Volume Pot Range +10dB to Off (+10dB to -30dB factory fit option)
Headphone Impedance 35 - 1000 Ohms
Maximum Headphone Output +15dBu into 600 Ohms
Headphone Frequency Response <= -2dB 50Hz to 24kHz
THD + Noise < 0.011% @ 10kHz ref +8dBu
Analog Output Has direct XLR line level ouputs of Mic A, Mic B and a mix of both
POWER
External Mains PSU
  • Filtered IEC, 100 to 240VAC (+/-10%)
  • 47 - 63Hz
Power Consumption < 4Watts
Power On LED Bright Blue
PHYSICAL
Size 220 x 250 x 98mm (WxDxH)
Weight 1.46kg
Mechanics All aluminium construction, anodized and laser etched, powder coated sides
Shipping Carton
  • Rugged export quality cardboard carton
  • 610 x 420 x 170mm (LxDxH)
Shipping Weight 4kg
ENVIRONMENTAL
Operating Temperature 0 to +50 C (32 to 122 F)
Storage Temperature -20 to +70 C (-4 to 158 F)
Relative Humidty 0 to 95% non-condensing

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