@Bill
Is there a preferred orientation to install these 'cell phone speakers' ?  I've seen some discussion of them and their 'slots' of sound dispersion, but I've not seen much (if any) talk of preferred installation orientation??

Is there a preferred orientation to install these 'cell phone speakers' ?  I've seen some discussion of them and their 'slots' of sound dispersion, but I've not seen much (if any) talk of preferred installation orientation??

In my experiance, as long as the sound port is not blocked, you're good to go.

It helps if the sound port is pointed toward and opening in the shell or underside too.

sorry to be vague  but I attended a clinic on using iphone 4 speakers in your locos at, if my memory servs me correct, the Prototype Modelers sig (NMRA) in New Jersey last spring.  Cannot remember right now the woman's name but she was very knowledgeable -- worked with a DCC outfit from New England.  Do an internet search on this and maybe her name will pop up.  She told us you   CAN    cut off the long part of the speaker housing without a problem.  She demoed the speakers in several locos .. and they did, indeed sound grate.  But you can cut off the arm evidently.   I bought 5 for $10 that day but have not yet used them. Hope this helps a bit.

Doug H.

Her name is Kaylee Zheng

She gave a great clinic/demonstartion of the iPhone 4 speaker noted by D Humm comment to our club.  She can be reach thru Tom's Trains of CT. 860-529-6157

Ed