Go passive. However, your issue is most likely your source is too hot. This either because the engineering of the music, due to excessive compression or even high efficiency speakers being driven by too much amp.
In any case...in line attenuation or a passive pre might be in order. Or....if it is the amp.....a less powerful amp.
In any case...in line attenuation or a passive pre might be in order. Or....if it is the amp.....a less powerful amp.