phase vs time alignment

[Bill Fitzmaurice]

A DJ I was helping last weekend was using a BBE 882i maxed out on top and bottom

[BrentEvans]

you're going to use that every chance you get, aren't you?

Sad thing is, I think I know the episode it came from...

[subharmonic]

A DJ I was helping last weekend was using a BBE 882i maxed out on top and bottom, the feedback issues we were having was beyond obscene. There was no BFM cabs involved, no time correction, and I wasn't able to calibrate the room since the Maximizer was the only processing they had. I was able to bring in my Behringer 8024 as an afterthought put it in the wireless mic out before the mic in on the board. HPF 160hz, let the Behringer find the ringing frequencies and EQ them down 6-10db myself (didn't try full manual as we were short on time). This was my 1st attempt at semi-manual feedback correction. Didn't work and seemed to make things worse.

I suspected the Maximizer as part of the issue. Could the phase adjustments they do be part of the cause?

Wow...even before I sold mine I never went beyond 1 o clock.

LOL. It was mine, I traded it to them for a EP1500 amp once I used it and and bought my driverack in its place, told them it just ruined the sound but they are under its spell. They think it sounds great. Worst part is I wanted to turn it off to see if it was causing the feedback issues but they didn't want to spend the time to and instead complained about the feedback. Although the MC part of the company loved his voice sounding all boomy, nothing like he sounds. They are totally in love with it, damn you Brian S Redd and your sheep herding on youtube.

[doncolga]

A DJ I was helping last weekend was using a BBE 882i maxed out on top and bottom

[BrentEvans]

Talk about clueless... geez.

[Dave Non-Zero]

WTF did anyone actually watch that vid and see the diagrams to 'explain' how it worked!?!?

you definitely got the good end of that trade getting the amp! hahaha.

[jjohnson]

I have used a BBE before and found it to be helpful in certain situations - namely on playback of recorded music in large rooms where the closest audience member was 70 feet from the speakers. The speakers in use were traditional cabs where the woofer was in front of the driver. It did help brighten the sound and remove the dullness.
Never found that it made much of a difference any other time.

[Bill Fitzmaurice]

you're going to use that every chance you get, aren't you?
.

On second thought this would have been more appropriate:

[SoundInMotionDJ]

A DJ I was helping last weekend was using a BBE 882i maxed out on top and bottom, the feedback issues we were having was beyond obscene.
...
I suspected the Maximizer as part of the issue. Could the phase adjustments they do be part of the cause?

IME, no. BBE's do a great many things...increasing feedback is not one of them. I have worked with a LOT of DJs who insist on using BBE's, and I have had them in my rack with my last setup (before I saw the light and took the time to learn what was going on).

The feedback was probably due to the mic placement, or overall gain.

[SeisTres]

The feedback was probably due to the mic placement, or overall gain.

+1, 9 times out 8, when a band was getting a whole bunch of feedback was when their yamaha mixer was clipping on every channel and their dbv meters were going into the red, aswell (which happen to come on at +20dbv ) Throw a behringer mixer in the mix and things get even more interesting

[Rick Lee]

These are the best sonic maximizers:

[SeisTres]

These are the best sonic maximizers:

LOL, I remember this pic got posted a while back and I finally got who the girl looks like - lucy from the narnia movies.

[Rick Lee]

I finally got who the girl looks like - lucy from the narnia movies

It was strange to sit in the movie theater watching the movie and glancing over to look at my daughter. They could be identical twins except Lucy's a little older.

[subharmonic]

using a BBE 882i maxed out on top and bottom

IME, no. BBE's do a great many things...increasing feedback is not one of them. I have worked with a LOT of DJs who insist on using BBE's, and I have had them in my rack with my last setup (before I saw the light and took the time to learn what was going on).

The feedback was probably due to the mic placement, or overall gain.

Maybe not but it was maxed on both sides and it would have been nice just to turn it off and see if that was the issue. The mic was mobile all over the dance floor so placement issues would have been temporary as he was moving.

[SoundInMotionDJ]

Maybe not but it was maxed on both sides and it would have been nice just to turn it off and see if that was the issue. The mic was mobile all over the dance floor so placement issues would have been temporary as he was moving.

The BBE will provide some gain across the unit...in addition to the "processing" that is done. The additional gain on the total signal chain could have made the feedback worse...but no more than any other gain.

The mic being mobile is interesting...and points to just how out of whack the whole system was.