Help on RS150B Preout level for RA180

Hi,

According to the manual of the RA180, the XLR balance input sensitivity is 2000mV for 200W x 4 Channel.

I am running my RA180 in BTL mode, meaning 400W x 2 Channel.

I tried the 2000mV preout level as indicated in the manual, but I found setting the preout level to 3000mV on the RS150B provides a better sound quality.

Is there a recommended preout level for the RA180 in BTL mode?

I checked with the Rose vendor in my location. He said he is setting 6000mV for his demo RS150B + RA150, probably due to low sensitivity of his speakers.

My question is: will high preout level cause any damage to the amp ?

Thanks