Re: Thoughts about amplifiers at 3/4 volume.
Makes sense to me. I had not thought much about amps picking up noise over long runs of wiring. All of my racks have the DSP co-located with the amps so this is never an issue. Sometimes it's hard to see potential problems when you're so used to doing things one way. IME, the mixers and outboard have dominated the noise floor of nearly every gig I've ever done (save some crazy buzz that develops in a musicians instrument).
Thanks, as always, for humoring me. It's nice to have perspective on these things and even though they aren't currently problems, they may aid in troubleshooting down the road.
Sending a hot signal and padding down the input at the amp, will reduce noise picked up in that interface between amp and the sending unit. This is less of an issue with good modern balanced inputs, balanced sends. and balanced (3 circuit XLR) wiring. In the not so good old days, using unbalanced interfaces and wiring, it was a very valid technique to manage noise in quiet ambient venues (like HOW). I can imagine a modern venue with distro or whatever issues and hum in the amps, that might benefit from hot level and pad, but with clean interfaces, not so much.
So arguably with modern gear you "should" be able to get by without amp trims, but there is a lot of inertia in the marketplace so customers will still want their amp trims for some time to come, and there could be the occasional problem gig where this technique could help.
JR
Makes sense to me. I had not thought much about amps picking up noise over long runs of wiring. All of my racks have the DSP co-located with the amps so this is never an issue. Sometimes it's hard to see potential problems when you're so used to doing things one way. IME, the mixers and outboard have dominated the noise floor of nearly every gig I've ever done (save some crazy buzz that develops in a musicians instrument).
Thanks, as always, for humoring me. It's nice to have perspective on these things and even though they aren't currently problems, they may aid in troubleshooting down the road.