Took these with a lens I got a thrift shop a while back. The lens is pretty garbage, or at least I haven't been able to get "good" results out of it, but it sometimes adds an unearthly feel I like.
I'm pretty sure this won't destroy your speakers, but no promises. Also, be careful with headphones. This is just the mixer pretty much. I ran it through a tube driver and added some ping pong delay.