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Ultra-Fast and Fully Automatic Dual-Channel Feedback Suppression Processor
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.
System Enhancement
Feedback suppression may be DF1000’s main function, but feedback elimination also generates significant overall system performance. By removing annoying and potentially destructive feedback, your live sound system’s output gain can be increased by as much as 10 dB to provide much needed headroom.
Automatic DSP Applies up to 32 Filters per Channel
Automatic DSP Applies up to 32 Filters per Channel
Using an ultra-fast feedback detection algorithm, the DF1000 automatically and “intelligently” locates up to 32 feedback frequencies per channel. The algorithm then sets extremely narrow notch filters (up to 1/30th of an octave) to lower those frequencies while leaving the remainder of your signal virtually untouched.
Dual Mode Operation
The DF1000 makes an exceptional stereo Front Of House (FOH) feedback eliminator. Alternatively, you could use channel 1 for FOH (mono) and use channel 2 on your monitors – for a single unit feedback control center.
Connections
The DF1000 features all the connectivity options you could ask for – 2 balanced/unbalanced Inputs on combination Line-Level XLR/TRS sockets and 3-pin Euroblock connectors. Outputs are provided in the form of balanced XLR and Euroblock connectors.
Sound Value
No matter what type of audio presentation is your speciality, the DF1000 is your ticket to the feedback-free zone. Easy to operate and easily affordable, the DF1000 provides automatic and instant feedback protection, no matter the program material. Say goodbye to feedback forever with the DF1000. See your KLARK TEKNIK dealer, or order your DF1000 online today.
Specification
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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
Active
Reset
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/Weight
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
