FBX2420

Feedback suppressing frequency shifter

 

The novel FBX Feedback suppressor adopts SMART Filter technology, SMART Filter technology, ultra-high-speed automatic feedback control, with 1Hz resolution setting filters, providing greater gain before feedback (typically raise 6 ~ 9dB),

24bit digital resolution, three-color LED display filters, each channel has 12 filters.

 

Technical Parameters:

FILTERS

12 independent digital notch filters per channel,

controlled automatically from 40 Hz to 20 KHz.

Filter width: user-controllable - either 1/10 or 1/5 octave, constant "Q"

Resolution: 1 Hz

Time required to find and eliminate feedback: 0.4 seconds, typical @ 1KHz

Number of Dynamic vs. Fixed filters per channel: user selectable.

Last configuration stored in memory.

INPUT/OUTPUT

Input/Output Maximum Signal Levels: Balanced +27dBV peak, unbalanced +21 dBV peak

Output Drive: Unit will perform as specified driving a load >600Ohms

Input Impedance: Balanced or unbalanced >40K Ohms, PIN 2 high level

Output Impedance: Balanced or unbalanced 150 Ohms nominal, PIN 2 high level

Bypass: True power off bypass

Headroom: +23 dB peak @ 4 Dbv nominal input, balanced

I/C Connectors: XLR-3 and 1/4" TRS

PERFORMANCE

Frequency response: 20 Hz – 20KHz +/- 0.3 dB

Gain matching: +/- 0.2 dB

Spectral Variation: + .25 dB, 20Hz to 20 KHz

SNR - Dynamic Range: >100 dB

THD: .005% at 1 KHz < 0.01% 20 Hz-10 KHz < 0.025% 10 KHz-20 KHz

Dynamic Range: >105 dB