[Bluetooth for Grandfather's Speakers]

Sounds good, thanks everyone!

[Bluetooth for Grandfather's Speakers]

About a year and a half ago my grandfather passed. I recently moved into the house and got his speaker system hooked up. I know nothing about speakers, or systems. 

 

He had some old Klipschorns (1979 I believe), and McIntosh amp/control. I looked all the stuff up on the internet (which is how I found this forum) and it seems to be a pretty nice set up, one I'd rather not ruin. 

 

I'm comfortable using the CD and record players through the speakers because they were already there. However, I have an AV bluetooth adapter (Esinkin) hooked up which I added to the mix. If I'm playing my iPhone through these speakers what are the odds I do something dumb and blow them up?