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Experience with powered mixers having feedback suppression feature

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Experience with powered mixers having feedback suppression feature

Postby dph9254 » Wed Nov 21, 2018 5:20 pm

I'm interested in input on the feedback suppression feature included on powered mixers such as the Peavey XR-S and the Yamaha EMX5. Do these features perform? I am in a bluegrass band where we'll run 3 vocal mics, 4 instrument mics and a bass amp feed. We'd also like to occasionally set up using one condenser for vocals/instruments, 2 side condensers for instruments and then the bass amp feed. We're looking for a new mixer and the Peavey and Yamaha mixers are in our price range. Thanks.
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Re: Experience with powered mixers having feedback suppression feature

Postby AlecSp » Thu Nov 22, 2018 11:39 am

Sadly, they generally don't...
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Re: Experience with powered mixers having feedback suppression feature

Postby MarkPAman » Thu Nov 22, 2018 4:21 pm

Unless they've got a lot better recently .....

If they can be used to find feedback frequencies and notch them out (which takes a higher volume & longer time than a good human) before the gig, and defiantly with no audience already in the venue - then can be locked to those frequencies - feedback suppressors just about have their uses.

Having them "hunt" during the gig is no use, they are much too slow, need the feedback to be unpleasantly loud, and can't tell feedback from a sustained note anyway.

Even the relatively expensive ones I've tried are pretty rubbish.

I don't know the desk in question well, but I'd not be expecting much to be honest. Good selection of mics & speakers and their positioning, would be much better things to concentrate on.
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Re: Experience with powered mixers having feedback suppression feature

Postby Wonks » Thu Nov 22, 2018 4:27 pm

Having read the (very brief) Yamaha manual, it's all automatic with no feedback on what its doing. 7 available notch filters, but no ability to lock it or stop the bands adapting as time progresses.
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Re: Experience with powered mixers having feedback suppression feature

Postby Hugh Robjohns » Thu Nov 22, 2018 4:47 pm

dph9254 wrote:I'm interested in input on the feedback suppression feature included on powered mixers such as the Peavey XR-S and the Yamaha EMX5. Do these features perform?

To a degree, yes, but they are no substitute for well designed speakers, placed sensibly, and good microphones positioned properly.

If your current system is prone to feedback you would be much better off figuring out why and tackling the reasons, rather than hoping feedback-suppression hardware will save the day... because it won't!

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Re: Experience with powered mixers having feedback suppression feature

Postby dph9254 » Mon Nov 26, 2018 1:47 am

Thanks for all the responses.
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Re: Experience with powered mixers having feedback suppression feature

Postby ef37a » Mon Nov 26, 2018 7:26 am

And...in your quest for feedback elimination do not forget a few mic XLR phase flipping slugs.

Handy to be able to flip speaker polarity too but often not so easy.

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Re: Experience with powered mixers having feedback suppression feature

Postby ef37a » Mon Nov 26, 2018 7:28 am

ef37a wrote:And...in your quest for feedback elimination do not forget a few mic XLR phase flipping slugs.

Handy to be able to flip speaker polarity too but often not so easy.

(err..I forgot, does gain before ring go down AS the number of open mics or by some power?)

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