Hey!
As a fellow audiophile and a cat owner I'm very sorry to hear about your loss.
My now almost 11 years old cat Mr. Bubble is my listening buddy also. Yes, sometime I would look at him and can't help thinking that it won't be long 'til that day come.
But 'til that day I will enjoy the time with him and do my best to make sure that he is happy while he is with me and my family.
Mark, just remember he lived a good life.

Take care,
Buddy