Connecting a synth to Wakonda..

Hi guys,
I know this be slightly off topic, apologies if this is case.
Usually it seems there are many helpful chaps (and chapesses!)
that help out on here.

I am currently owner of a setup that includes
Wakonda
2x LK100
Keilidhs.

Im hoping to connect up my Roland FA-06 worlstation.

According to litriture the synth has :-
1/4-inch TRS phone type connectors.

I realise i could use the headphone socket easily.
Surely the 1/4 inch would give a better choice???

What or how can i go about this connection??
Was hoping they would be phono jacks on the synth but no!!!

Regards