I have my E403 connected via the headphone output to my 200watt amp & Resolv65 speakers and it works just fine.

However, since your wife wants to learn to play, I would suggest the YPG625 with 88 keys and weighted keyboard action. It's much closer to a real piano.

go here: http://yamaha.com/yamahavgn/CDA/ContentDetail/ModelSeriesDetail/0,,CNTID%253D65229%2526CTID%253D205200%2526CNTYP%253DPRODUCT,00.html

Tim

[This message has been edited by CoasterTim (edited 08-01-2006).]