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Bag End - INFRA-MXB - Stereo 2-way Cross-over

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Bag End Loudspeakers - INFRA-MXB - Stereo 2-way Cross-over

A two channel loudspeaker controller designed for stereo 2-way operation with a mono sum INFRA low frequency output. The INFRA-MXB incorporates the INFRA dual integrator, frequency dividing, and system protection in an easily operated configuration where the system parameters are internally preset or available on front panel rotary controls.


  • Recording Studios
  • Film Post Production
  • Video Editing Suites Mastering Labs
  • Theatrical Production
  • Cinema Reproduction
  • Home Theater Systems Stadiums and Arenas
  • Concert Sound Reinforcement
  • Musical Instrument Systems


  • 18 Hz INFRA dual integrator
  • CVR hi pass limiting
  • INFRA Dynamic Filter
  • Balanced inputs
  • Internal frequency modifications
  • Convenient front panel controls
  • 2-way stereo or 3-way mono mode

Use INFRA output with INFRA Loudspeakers only.

General Specifications:

Input Connectors: XLR female
Input Configuration: Balanced
Alternate Input Configuration: Unbalanced
Maximum Input Signal: 4.5V (+16 dBu)
Output Connectors: XLR male
Output Configuration: Unbalanced
Maximum Output Signal: 4.5 V (+16 dBm)
Nominal Output Impedance: 50 Ohms
Power-on Indication: Green LED
Operating Input Voltage: 12 - 15 VDC
Operating Current Required: 200 mA
Input Voltage Connector: Miniature DC 2.5 mm
Input Voltage Polarity: Center pin +

INFRA Specifications:

Maximum INFRA Gain: 10 dB
Maximum INFRA Attenuation: 10 dB
INFRA Cutoff Frequency Programming: Plug in resistors
INFRA Cutoff Frequency: 8 Hz to 40 Hz, Factory set 18 Hz
INFRA Output Mode: Sum in Stereo Mode
Nominal Dynamic Filter Threshold: 0 dBu Output
Minimum Dynamic Filter Threshold: -10 dBu Output
Maximum Dynamic Filter Threshold: +10 dBu Output
Maximum Dynamic Filter Reduction Capability at 18Hz: 30 dB
Dynamic Filter Threshold Exceeded Indication: Red LED
INFRA Circuit Noise: < -90 dBu (20 Hz to 20 kHz)
INFRA Dynamic Range: > 105 dB (20 Hz to 20 kHz) (bandwidth unweighted)

Hi Pass Specifications:

Maximum Hi Pass Gain: 10 dB
Maximum Hi Pass Attenuation: 10 dB
Hi Pass Filter Frequency Programming: Plug in resistors
Factory Set Hi Pass Filter Frequency: - 3 dB @ 130 Hz/-6 dB @ 97 Hz
Hi Pass Filter Frequency Range: 50 Hz to 200 Hz
Hi Pass Filter Slope: 12 dB/octave
Hi Pass Circuit Noise: < -85 dBu (20 Hz to 20 kHz)
Hi Pass Dynamic Range: > 105 dB (20 Hz to 20 kHz) (bandwidth unweighted)

Physical Specifications:

Enclosure: Black powder coated steel
Enclosure Mounting: 1U EIA rack (1.75")
Dimensions: 1.75"h x 19"w x 5.25"d (5 cm x 49 cm x 14 cm)
Weight: 5 lbs. (2.3 kg)
Shipping Dimensions: 6" x 22" x 12" (16 cm x 59 cm x 31 cm)
Shipping Weight: 7 lbs. (3.2 kg)

For more information, click here [PDF]
List Price: 
RAL Price: 
15% OFF! 
Sunday 12 June, 2005
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Bag End
Bag End Loudspeakers

Bag End Loudspeakers

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