Audioquest Cheetah- Anyone?

I have a pair of the Panther RCA here on loan. With my 93db sensitive speakers. I can easily hear exactly what the dbs battery pak is doing. And I much prefer the cable with it disconnected. The battery boosts the signal, especially in the midbass and also reduces the HF ambience/extension. I also hear more distortion in the sound. This is not a neutral/accurate cable at all.

Now up to 48v on the DBS speaker cables and 24v on the cables. I heard the interconnect and nothing has changed.
Caveat empteur.