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Sabine FBX-SOLO SL820 - Single Channel Feedback Exterminator with Noise Gate and 1/4" TRS Input/Output

B&H # SASL820 Mfr # SL820-U
Usually ships in 2-4 weeks

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This item is usually Drop Shipped from the MFR/Distributor within 2-4 weeks (subject to availability). Your order will be charged at the time of placing the order with the vendor. Item is non-cancelable and non-returnable.

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You Pay: $326.97

The FBX-SOLO SL820 is a single channel miniature version Feedback Exterminator based on the FBX-1020Plus. This solution for feedback control hosts several new features, including increased headroom, a programmable noise gate, and switchable input/output levels for more versatility. This model features 1/4" TRS phone input and output connectors for line level applications.

The SL820 targets feedback without taking a big sonic chunk out of the source material, since digital FBX filters are 10 times narrower than graphic EQ filters. The unit functions by precisely detecting the feedback frequency, and placing super-narrow (1/10 octave) digital filters directly on these frequencies, and finally setting the filters just deep enough to remove the feedback. The results are more gain, increased intelligibility - narrow filters target the feedback and leave the source material untouched - and automatic feedback control, both in setup and during a performance.

FBX filters come in two flavors. Fixed and Dynamic. Both types are placed the same way - feedback is detected and the filter is placed just deep enough to eliminate it. The difference comes after the filter is placed. Fixed filters remain on the initially detected feedback tone - they do not move. These filters provide the initial maximum gain before feedback and are set automatically during setup. Dynamic filters can release and move to new feedback frequencies and are for adaptive feedback control during the performance.

The SL820 is the perfect solution for mixer insert points, powered mixer patch points, acoustic/electric guitars and guitar amps and for use with high-impedance microphones.

8 FBX filters
Switchable filter widths - 1/10 or 1/5 octave, Constant-Q
Filter Tracking
Tracks feedback when it drifts
0.4 seconds is the typical time required to find and eliminate feedback (@ 1KHz)
Input/output level switches allow any combination of inputs and outputs
Filter Type Digital Notch
Frequency Bands 8, fixed or dynamic
Bandwidth 1/10 or 1/5 octave, constant Q, user-selectable
Number of Channels 1
Inputs 1 x 1/4" TRS phone
Output 1 x 1/4" TRS phone
Maximum Input Level At lowest gain: +20dBV
Maximum Output Level At lowest gain: +20dBV
Frequency Response 20Hz to 20kHz, <+0.25dB
Dynamic Range >100dB
Noise >94dB typical
Dimensions 1U height, 1/6RU width, 5 1/2" deep
Weight 9 oz
Specialties Fixed 400 mS attack time noise gate, with selectable threshold
Sabine FBX-SOLO SL820 - Single Channel Feedback Exterminator with Noise Gate and 1/4" TRS Input/Output
  • External Power Supply
  • One (1) Year Warranty

    by PowerReviews
    SabineFBX-SOLO SL820 Line Level Feedback Suppressor

    (based on 1 review)

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    Reviewed by 1 customer

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    (1 of 1 customers found this review helpful)


    An Engineer in a Box

    By FOH audio engineer

    from Minneapolis

    About Me Experienced

    Verified Buyer


    • Clear Sound
    • Compact
    • Easy To Use
    • Lightweight
    • Versatile


      Best Uses

      • Events
      • Mobile DJ
      • Performances

      Comments about Sabine FBX-SOLO SL820 Line Level Feedback Suppressor:

      This tool can get you more gain, faster and and with less impact on your sound quality then anything else on the market.
      Sabine has lead this technology for many years and has kept the SL820 as simple as possible to keep with their fundamental philosophy of making this as close to plug and play as possible.
      Just insert it into your signal path and bring up the volume. The Sabine will lock filters onto the most prominent feedback problems and you're ready to go. Filters can also roam dynamically, picking up and suppressing momentary feedback and then releasing those filters after a short time.

      A worthwhile product that does what it claims.

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