There's no way I'm going portable with the rack of equipment to do all that traditionally, but the practical alternative here would be a compact mixer with adjustable gain, and a built-in compressor, and 3 band EQ with sweepable mid.

There's also some compact mixers that will pair a bluetooth player, and there are plug-in bluetooth receivers like the Blackstar Tone:Link

The mixer is primarily worth considering if more channels or preamps are needed.

The result is like a tiny, two-channel, passive mixer.

The second unit isn't that much more weight and bulk than a compact mixer, the cable bundle, and power supply, yet it basically doubles the inputs available to 12 channels (or 16 if you don't link them), and it also doubles the amplifier power, the number of drivers, and offers wider coverage and better stereo separation