jonogunn wrote: ↑July 31st, 2022, 4:21 am From your experience when you are out and about with your pack do you usually leave the hum on or turn it down? I imagine that leaving it on for the majority of the time would get annoying? (Especially if it’s the afterlife version)I don't even think about it. Most of the time if I'm out somewhere, it's more than noisy enough that the pack hum is mostly just white noise to me. I tend to just set it and forget it. Even more true if I'm inside somewhere rather than outside.
I’m surprised to see that the gbfans soundboard is only 10w and the speaker is only 40w. I guess that is loud enough? Sounds like my 50w amp and 4-way 160w speaker may be overkill? If so this is good as I want to keep costs down for future packs.Yeah, you'd be surprised how much sound you can pump out with a simple setup. A good way to think of it is that you're not building a stereo. You're not trying to fill a 500sqft room with sound. You want people 10 ft around you to have fun and get a kick out of it, and it doesn't take that much power to do that. A good way to think about it is to compare it with something you might be familiar with, like a wireless bluetooth speaker. We've all used them. You can get a good one pretty cheap that can get loud. How about a REALLY nice one? The Bose Soundlink Revolve for example - it's only 8 watts.
Another way to think about it is that wattage is easy to relate to heat. A good example of that? Lightbulbs. It'd get pretty uncomfortable over time walking around with a 60 watt lightbulb right on your back heating things up. Hopefully those examples help paint a bit of a picture of how much power we're walking around with on our backs.
48hrs that’s insane!!That's full idle. It only take milliamps to run a handful of LEDs and a quiet hum. Real world usage, I get a few hours at an event. Last time I was out, I actually managed to run my pack down. But, I had volume cranked, ran in party mode a few times, and was hitting my smoke a lot (which doesn't run long, but does draw a lot of power for a short time). I'm gonna make some circuit adjustments soon to see if I can extend that. Everything runs on one battery currently in my setup, but different parts have different cutoffs. The mainboard and LEDs, and the smoke circuit will basically keep going all the way down to 5V, but sound starts to cut out if I'm turned up too loud and my voltage starts dropping. Smoke usually cuts out too, because I'm using a buck converter to step the voltage down, but the current draw tends to shut it down around 10V.
Thanks for that info. My amp has a built in potentiometer but if I plan to separate the volume control for the pack and wand via the mixer I can just leave the amp turned on in the pack and not bother using the built in potentiometer. I’ll just connect the 2 potentiometers from the mixer to the pack instead. I was just afraid I would need control over switching the amp on/off but if it’s not a big power drain if leave it on I’ll just go with that.Feel free to sketch it up and send it over to me, I'd be happy to take a look at what you're planning and let you know if there's anything you're missing or should be concerned about.