av receiver preouts are controlled by receiver?,if yes,yes you can through preamp?but additional amplification by preamp will clip pwr-amp at high volumes,the point here is low-z preamp out,if av has
lowz-out preamp why use additinal preamp?? ,anyway clipping or no clipping you can use a preamp
there..
With LDR passive preamps there is NO amplification - hence the "passive" descriptor. Some folks argue that a preamp without an active gain stage is not a preamp at all. Not surprisingly I disagree with that view. A preamp can have the following characteristics and still be considered a preamp.
1) It comes before the amp, hence it's "pre" the amp. - MUST
2) It controls volume (attenuation) - MUST
3) It switches between multiple inputs - OPTIONAL
4) It has no buffer output stage (passive)
The following only apply to active preamps
5) It has a buffer output stage (active) - OPTIONAL
6) Has gain (voltage/volume amplification) - OPTIONAL
7) It does RIAA curve correction and amplification (active phono stage) - OPTIONAL