Up2stream AMP Stereo - is it possible to build a 2.2 system (2 speakers + 2 active subs)

DIY Products&Projects DIY Product Questions
21

This is a very helpful post, thank you.

Since the 2.1 Amp board seemed too large, I was considering using the up2Stream 2.0 Amp v4 with the mentioned Xout or L, R outputs, and combining it with the Arylic subwoofer board.

However, the AUX 2 line-in input on the subwoofer board doesn’t have labeled pins, and I’m not sure what kind of wiring I should do. Can you please help me with that?

After completing all the wiring, can we still apply a filter for the subwoofer in the mono eq section of the ACP Workbench? Because the subwoofer board will be internal, I won’t be able to use the knobs.

22

Hi @zpl1025 Frank,

It’s related to the post above. maybe you know the pin map of the Up2Stream Amp Sub? It seems missing on the board. Thanks,

23

Hi Kurt,

The center PIN of AUX2 is GND, the other 2 is for audio signal. And since the SUB board is working in mono mode only, so I guess you could just connect both of them directly. Could try it, won’t break anything :slight_smile:
And in this case the SUB board will work as a pure amplifier, so you should set fixed parameters to it without any update when running. Also, you better remove the WIFI module of it, so it won’t cause any trouble.

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