The guitaRF by sE Electronics is a great tool to isolate your guitar amp from everything else on stage. It’s a reflection filter designed to reduce signal bleed in the most challenging of circumstances.
In small clubs, the guitaRF pulls double duty, not only isolating your guitar amp from other noise, but also blocks the speaker from blasting directly at the audience. It can help give the front row a less “deafening”, more enjoyable experience of your performance.
Check out the guitaRF product page and scroll down to the quotes section to find out what leading engineers have to say about the guitaRF during live performances.