Good studio monitorrs will give the best sound,Yamaha HS series are very good to use with the tyros3.
I am using Tannoy reveal8D monitors with my T3,it sounds Super !

Impuls.
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Genos2,Korg Pa5X , Yamaha YC61, Ventilator2 . : https://www.youtube.com/channel/UCmC6hdAR1v5lYN8twfn0YbA