Checked that.Cycle through the menu to check if your gain setting on the W2 is set to High. The S1 also has a similar setting where you can set your gain to Low or High
It's a bit strange really. The W2 sounds better but my unit definitely doesn’t have more driving power than the Lotoo S1. Just been using my IMR Elysium with the 4.4mm cable on both units. The W2 is sitting at 50 to 55/100, the S1 is at 45/100 and is still giving more more volume.
Am I missing something here?