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In stock


Just as the old adage says, “You can’t judge a book by its cover”, the true beauty of the DF1000 lies hidden beneath its elegant aesthetic design and user-friendly interface. Inside beats the heart of a truly-professional, dual-channel, automatic feedback-suppression processor, brought to life by one of the world’s leading manufacturers of high-end signal processor electronics. DF1000’s ultrafast and highly-accurate feedback detection algorithms instantly find critical frequencies and apply up to 32 filters per channel to eliminate feedback. Whether your application calls for feedback protection for the spoken word, musical performances, or both – the DF1000 is the ideal solution. From conference rooms, to concert halls, to house of worship applications, any venue with a live sound system will benefit from the DF1000’s unprecedented performance and value.
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  • Dual-channel feedback suppression processor designed for fully automatic and zero-configuration setup
  • Offers up to 10 dB increase in system gain
  • Instantly detects and stops acoustic feedback. Highly effective with both speech and music
  • Ultra-fast and highly accurate DSP selects and applies up to 32 filters per channel
  • Two fully independent audio channels to process stereo or separate zone signals
  • Extremely narrow filters (up to 1/30th octave) to retain overall signal integrity
  • Front panel control featuring suppression and filter reset buttons
  • Two balanced/unbalanced inputs on combination line level XLR/TRS and 3-pin Euroblock connectors
  • Auto-ranging universal switch-mode power supply
  • Designed and engineered in the U.K.

Audio Inputs

Connections 2 x XLR / TRS combo 

2 x 3-pin Euroblock

Input impedance appr. 20 kΩ
Normal input level +4 dBu
Max. input level +21 dBu

Audio Outputs

Connections 2 x XLR 

2 x 3-pin Euroblock

Output impedance appr. 50 Ω
Normal output level +4 dBu
Max. output level +21 dBu

System Information

Controls Power on / off 

Suppression (momentary)

Filter reset (momentary)

Indicators Power 



Frequency response 20 Hz to 20 kHz,+0/-0.5 dB
Dynamic range 104 dB
THD+N  < 0.01 % @ 20 Hz to 20 kHz, +4 dBu In
Crosstalk < -81 dB
S/N ratio  >88 dB @ +4 dBu In
CMRR >45 dB
Processor system gain 0 dB
Additional acoustic gain  10 dB

Digital Signal Processing (DSP)

Converters 24-bit
Sample rate  48 kHz

Feedback Suppressor (FBQ)

Feedback reduction methodod Automatically detect and apply notch filter
Filters  32 independent digital notch filters per channel
Filters width min. 1/126th octave, max. 1/38th octave
Resolution 0.2 Hz
Time required to find one feedback mode 100 – 400 msec
Time required to find multiple feedback modes  2 – 4 sec

Power Supply

Type Auto-switching power supply
Mains voltage (all regions) 100 – 240 VAC, 50/60 Hz
Fuse T 1.25 A H 250 V
Power consumption 10 W
Mains connector Standard IEC receptacle


Dimensions (H x W x D) 50 x 483 x 296 mm (XU) (2.0 x 19.0 x 11.6″)
Weight 2.9 kg ( 6.4 lbs)

Temperature Range

Operation +0° C to +45° C
Storage  -20° C to +60° C

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