Rpi 2040 i2s ports

I2S (Digital Audio) Audio Library

While the RP2040 chip on the Raspberry Pi Pico does not include a hardware I2S device, it is possible to use the PIO (Programmable I/O) state machines to implement one dynamically

It says

Theoretically up to 6 I2S ports may be created, but in practice there may not be enough resources (DMA, PIO SM) to actually create and use so many

Anyone given it a try on what the max is, as wondering about using 2/3 ports with tinyusb for a 4/6 channel 16-bit, 16 kHz input usb device?
Do you think its possible or that might be stretching resources to thin?

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