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Marani DFP-212 Feedback Eliminator

B&H # MADFP212 MFR # DFP212
Marani DFP-212 Feedback Eliminator

Marani DFP-212 Feedback Eliminator Back View

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Product Highlights

  • Dynamic Band Scanning
  • 12 Precise Automatic Notch Filters
  • 15 Adjustable Sensitivity Steps
  • Attenuation up to -45 dB per Filter
  • 4 Factory, 16 User Presets Stored in RAM
  • Accepts Microphone and Line Level Inputs
  • Bypass Circuit
  • MIDI Data Exchange
  • USB Control
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The Marani DFP-212 Feedback Eliminator is a device that uses dynamic band scanning and the placement of real time high precision notch filters to cancel audio feedback. The unit analyzes the signal, determines which frequencies are causing feedback, and uses 12 notch filters per channel in 15 adjustable sensitivity steps to remove the feedback by up to -45 dB.

The settings of the notch filters are temporarily stored in RAM memory, but must be saved to one of 16 available user presets or be lost when the unit is turned off. The unit also includes 4 factory presets, and an analog bypass circuit for easily removing it from the signal chain.

The device operates in dual channel or mono mode, accepts line level and microphone inputs, and uses balanced XLR and balanced 1/4" TRS connectors for both channels of the input and output. The device is housed in a 1-rack unit chassis. External control is available over USB with a computer, and the feedback presets can be selected via standard MIDI.

Bypass Circuit
You can easily remove the feedback eliminator from the signal chain by engaging the internal bypass circuit
MIDI Control
You can select presets and change system parameters using MIDI codes. Multiple units may be connected together via MIDI out so that the same settings will cascade across the network
USB Control
You can select presets and adjust system parameters over USB
Processes Digital Feedback Eliminator
16 x user
4 x factory
Inputs 2 x balanced XLR-F
2 x balanced 1/4" jack
Outputs 2 x balanced XLR-M
2 x balanced 1/4" jack
Maximum Input 9 dBu
Maximum Output 9 dBu
THD & Noise <0.01% @ -6 dBFS
S/N Ratio > 90 dBA
Frequency Response 20 to 20,000 Hz ±0.5 dB
A/D - D/A Conversions
Resolution 24 bit
Resolution 24 x 32 bit
Minimum System Requirement (PC)
Processor Speed 200 MHz
RAM 512 MB
Hard Disk Drive Minimum 50 MB
Video Resolution 1024 x 768
Operating System Windows 2000, Windows XP, Windows XP SP2, Windows XP SP3, Windows Server 2003, Windows Vista, Windows Vista SP1, Windows Vista SP2, Windows Server 2008, Windows Server 2008 R2, Windows 7
Display LCD 2 x 20 alphanumeric
External Connectivity MIDI In and Out for bidirectional data exchange
USB for control
Size 19" rack mount - 1U
Dimensions 19 x 8.5 x 1.7" (48.2 x 21.5 x 4.4 cm)
Weight 5.5 lb (2.5 kg)
Marani DFP-212 Feedback Eliminator
  • Power Cord
  • Limited 1-Year Warranty
  • Be the first to review this item


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