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Sabine FBX2410 Feedback Exterminator
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      Sabine FBX2410 Feedback Exterminator (109279752)

A dual-channel system that solves feedback problems by precise attenuation of very narrow bands of feedback-prone frequencies.

Since Sabine first invented digital feedback control in 1991, FBX Feedback Exterminators have helped set the standard for transparent and reliable automatic feedback control. Now Sabine is proud to announce the latest innovation in automatic feedback controllers, the FBX2410 Dual Feedback Controller.

The new FBX2410 includes major improvements to Sabine's patented feedback control algorithms, providing exceptional fast feedback detection and elimination. Sabine's one-Hz placement accuracy means these filters are even more transparent, and the signal-to-noise ratio has been improved by 10dB. All this means...one of the best just got better.

The Power of FBX:
FBX Feedback Exterminators set themselves apart for their ability to control feedback during the program, not just at setup time. If feedback occurs during that crucial moment of the show, in the middle of the big solo, or just when the worship leader begins the sermon, the FBX places a filter that only kills the feedback, not the sound and power you work so hard to achieve. Think of the FBX as a very advanced set of automatic parametric filters. If you had the time, the filters, and the test equipment, you could find the feedback frequencies, dial in the precise filter location, and make a very narrow filter, just deep enough to remove the offending tone. The FBX does it all for you automatically, and it does it faster than any other method. How does Sabine do it? First let’s consider just how a superior feedback control filter should behave. Filters can be described by their speed, accuracy, resolution, and sonic integrity.

The industry's best digital signal processors give the FBX2410 a distinct speed advantage over other automatic feedback controllers. In Setup Mode, the speed is increased so you can complete your entire setup of the FBX in less than 30 seconds.

Is it music or is it feedback? This is the most difficult question your feedback controller must answer. A wrong decision means you waste filters (less gain for you) and punch unnecessary holes in your sound. Less sophisticated feedback controllers place filters on any loud tone, even if it is music, but the FBX uses a patented analysis of the harmonic content of your program material. Because feedback is low in harmonics, and music and speech are rich in harmonics, the FBX is able to make the correct and accurate answer to the music or feedback question.

This is a big one. Now that we know feedback is happening, we need to target it precisely. Many feedback controllers place their filters in the general vicinity of the feedback and then widen the filters until the feedback goes away. The FBX uses a more sophisticated solution. It centers the filter exactly on the frequency that is feeding back. This unique one-Hertz resolution enables the FBX to control feedback with transparent filters that are ten times narrower than graphic equalizer filters, which can only muster 31 spots to place their very wide filters. Feedback frequencies are single tones, and that means there can be almost 20,000 places for them to occur in the audio spectrum. You can see that using a feedback control device with less resolution is like shooting a fly with a shotgun.

Sonic Integrity:
Sabine’s innovative approach to digital filtering is unique in the industry. The filters just sound better, with far less phase distortion and a smoother response. Many feedback controlers and graphic equalizers claim to provide Constant Q filters, but they really get wider as the filters go deeper. This Sabine filter remains extremely narrow regardless of its depth.

Faster Setup:
The FBX2410 gives you an easy, fast, and quiet setup procedure. In less than 30 seconds you will be ready to begin your performance, and the whole process is so quiet you can almost do it without anyone knowing it is happening.

Bright Multi-Color Filter Display:
After the super-fast setup is complete, the bright blue LED on the Ready button clearly tells you the show can begin and you’ve got all the extra gain you need. You have complete control of the mix between filter types (see the Fixed and Dynamic Filter box above), and the bright, three-color LED display shows you your filter status at all times – you can even see it from across the room!

The Bottom Line:
The new FBX2410 continues Sabine's leadership in the field of innovative and effective feedback control. With improved specs and audio performance, the FBX Feedback Exterminator is made in the USA.

Sabine FBX2410 Feedback Exterminator Features:

  • Super-fast automatic feedback control
    Quick and quiet setup
    Increased headroom and reduced noise floor
    Accurately distinguishes music from feedback
    Places filters with 1Hz resolution
    Transparent - leaves your sound clear and untouched
    Provides more gain before feedback (6 to 9dB typical)
    24-bit Digital Resolution
    Three-color LED filter display
    12 Filters per channel
    Flexible filter controls
    Dynamic filter reset
    XLR & 1/4" TRS inputs/outputs

Sabine FBX2410 Feedback Exterminator Specifications:

  • FBX/Parametric 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: 1Hz
    Time required to find and eliminate feedback: 0.4 seconds, typical @ 1kHz Number of Dynamic vs. Fixed filters per channel: user selectable with last configuration stored in memory
    Dynamic filter Timer: Resets dynamic filters in 1, 5, 30, or 60 minutes

    Input/Output Maximum Signal Levels: Balanced +18dBV peak, unbalanced +12 dBV peak
    Output Drive: Unit will perform as specified driving a load >600Ohms
    Input Impedance: Balanced or unbalanced >40kOhms, PIN 2 high
    Output Impedance: Balanced or unbalanced 150 Ohms nominal, PIN 2 high
    Bypass: True power off bypass
    Headroom: +14dB peak @ 4 dBV nominal input, balanced I/O Connectors: XLR-3 and 1/4" TRS

    Frequency response: 20Hz – 20KHz +/- 0.3dB
    Gain matching: +/- 0.2dB
    SNR - Dynamic Range: >108dB
    THD: .005% at 1kHz
    <0.01% 20Hz – 10kHz
    <0.025% 10kHz – 20kHz
    Dynamic range: >108dB

    Power Input: 115 VAC: 100 – 130 VAC 50/60Hz
    Fuse: 0.1 A, 10 W, 0.160 A SB fuse
    Dimensions: 1-U rack mount; 19" x 1.75" x 6.25" nominal (rackmountable); 48.3cm x 4.5cm x 15.9cm nominal
    Weight: 8.0 lb. (3.6 kg) nominal
    Operating Temperature: Safe operating temperature: -15 to +50 degrees centigrade ambient temperature (5 to 122F)

Product Reviews
(Based on 2 reviews)
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  • Sabine FBX2410 - on the job review

    As reviewed by Mark on 8/9/2011

    As promised I am writing to let you all know how the unit performed on the job. I followed the setup procedure as perscribed in the manual and true to form you could hear the feedback starting... then clamp out to dead quiet. I kept increasing the volume on the monitor amp until all the LED's were lit up and locked. I put the unit into ready and we started the show. Once during the performance I briefly heard feedback start but it was quickly clamped out by the Sabine unit. I was really happy with the performance of the unit overall. It did exactly what I expected it to do, without letting me down. What more can you ask for? I highly recomend this unit for all who want a performance without the terror feedback can cause.

    1 of 1 people found this review helpful.
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  • Setup a snap... Awesome Results!

    As reviewed by Mark on 7/28/2011

    Recently I purchased the 2410 Feedback Eliminator. I installed the unit in our rack (in my car-port at home). I then placed two (2) monitors, one on either side of my mic and followed the instructions on setting up the feedback eliminator. As I slowly raised the gain on my monitor amp you could hear feedback start... then clamp off to dead silence. Again I raised the gain, and once more you could hear the beginning of feedback, then the clamping to silence. I kept this up until I had the gain ALL THE WAY UP and unbelievably I could still talk into the mic with no feedback. I can't wait to use this unit on stage as I am sure it's gonna be dynamite! I'll write again to let everyone know what I think of it at that time. But for now I give it a full two thumbs up!

    1 of 1 people found this review helpful.
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