Our BART has a low purr, as big as he is, 26 lb. and Princess is the same, you have to be almost touching to hear them. Our newest Roscoe at 8 weeks you can hear for 3 blocks. I can almost tell who is on the bed by the purr. Except Mits he likes to give me a wet willy and purr so loud that I wake up to pet him. He then goes into a soft purr.