A major concern of all Horn (French Horn) players who are operating in the non-classical realm is how to be heard when there is a loud rhythm section, or even a loud group of brass, woodwinds or whatever! The bell pointing ‘backwards’ and the hand in the bell are hindrances, but they’re part of our instrument, so what to do? For me, keeping the bell elevated off the leg and hand position are important, but that’s not enough in some circumstances. When I need to amplify myself, I use the AMT wireless. http://www.appliedmicrophone.com/. If there’s no sound system, and I need to provide my own amplification, I bring my lunchbox amp. https://www.ztamplifiers.com/products.html It’s not super-powerful but if you locate it behind you, you can hear yourself!