Is it possible to connect 2.1 channel sound from (2 WUZHI amplifiers = ZK-TB22) - which separately work fine, ->> by the T W S function that comes with them? Both are flashing RED, after the 3 rings indicated by Wuzhi. Would they then play at the same time - the same song? BUT THAT DOESN'T HAPPEN. So, what is the solution? Grateful for the attention. Please answer verbatim. Video KZbin NO. - PLEASE.