Thanks for the information, I was under the impression that the Pi 2 also used P5... but indeed it&#x27;s on the 40 pin header now (<a href="http:&#x2F;&#x2F;www.pagemac.com&#x2F;projects&#x2F;i2s_amp" rel="nofollow">http:&#x2F;&#x2F;www.pagemac.com&#x2F;projects&#x2F;i2s_amp</a>)<p>Now if one could repurpose another 2 GPIO pins for bit-banging I2s... there are chips which support multichannel, see <a href="http:&#x2F;&#x2F;www.ti.com&#x2F;lit&#x2F;an&#x2F;snla221&#x2F;snla221.pdf" rel="nofollow">http:&#x2F;&#x2F;www.ti.com&#x2F;lit&#x2F;an&#x2F;snla221&#x2F;snla221.pdf</a> page 5.