Cheap bath speakers….

[G and J]

I do like a long bath with, of course, music, and I do like laying there with my head under water.   I’ve looked at bath speakers before and instead I have gone for the cheap option of earphones.   This time I’ve got some bone conduction ones, so I can wear them when exercising without destroying them - they’re supposed to be ok to swim in.   They are great to listen to as I lay there with my head out of the water, more comfortable than in ear types.  
 

Today, (yes, bath night already, that month went quick!), I did my normal thing, long soak, take my phones off to immerse, but I hooked them over the side of the bath and accidentally left them running.   Only to find that underwater I could hear the music at a good volume and beautiful quality.  So I will be installing a steel bath and I won’t be spending out on special speakers.   It’s amazing what one doesn’t know that one doesn’t know.

[ProDave]

That's a bit like I fitted a new ultrasonic depth meter to my boat this year.  But instead of drilling a hole and mounting the transducer through it, I glued the transducer to the inside of the hull.

[G and J]

8 minutes ago, ProDave said:

drilling a hole

Is the idea that the hole enables you to have a first hand look at the depth?  😕 

[SteamyTea]

34 minutes ago, G and J said:

Only to find that underwater I could hear the music at a good volume and beautiful quality

 

 

 

[ProDave]

2 hours ago, G and J said:

Is the idea that the hole enables you to have a first hand look at the depth?  😕 

The transducer is a high frequency speaker.  It sends out an ultrasonic ping and then waits for the echo to come back and work out the depth.

 

If you drill a hole, you then fill the hole with the sensor and seal it so the transducer is outside.

 

The alternative is you glue it to the inside of the hull and then the hull acts just like your bath, to send the sound wave through and hear the reply.  It is a little less sensitive when just glued to the hull.