Beware of your speaker! Twice I've been fooled by what I thought was a def rx'er. Turned out to be a bad internal speaker both times. The frame of the speaker can be easily bent by certain mounting methods - resulting in distortion.
My BITX40 case has a 2"? 8 ohm 0.25 W front facing speaker. Fantastic audio. Trade out front panel space for better sound if you can. Test your speaker before you mount it in a case. It's always been a pet peeve of mine that most commercial rigs put speakers on the top or bottom of their enclosures. Put an external speaker jack on the rear panel. Remember that sound is in the "ear" of the beholder.
