Many times people ask me how can one minimise feedback in a live sound scenario. There is one thing which many people including me constantly overlook.

I was mixing at The A Cappella Festival organised by The A Cappella Society, and was wondering why was I getting so much feedback, and I finally found out what was causing the trouble.

See that red arrow in the picture? The monitor Speakers are pointing towards the partition, And the partition was reflecting the sounds from the monitors STRAIGHT into the performers mic, causing me significant loss of allowable gain/volume.

After moving away the partition, the system works far better.

So the tip is, speaker placement plays a large role in minimising feedback. Do not hesitate in taking remedial steps where possible.