I just reread your post and caught the cellphone speaker in the wood box trick.
I own a model train store and have been factory trained to install DCC AND SOUND.
I am really impressed with the sound of the wood over the plastic box!
I used to build custom stereo boxes for cars and can not believe I missed that! You are correct. Wood does offer better sound.
Where do you get the cell phone speakers? The clarity is great!
Great job on the sound!!!!!!!!!
Also, what did you use for your tall grass? I cannot seam to get static grass to look that good.
Thanks Again
Mark in California. soon to be in Nebraska