Chony,

Roel is right on the money! Additionally, does the stereo output function when hooked up to a PA system? If the headphones and stereo output works, the culprit is likely the speaker, however, Roel's test will determine this.

If the speaker must be replaced, any speaker rated at 4-ohms with the same physical measurements will work just fine.

Good Luck,

Gary

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Travlin' Easy
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PSR-S950, TC Helicon Harmony-M, Digitech VR, Samson Q7, Sennheiser E855, Custom Console, and lots of other silly stuff!

K+E=W (Knowledge Plus Experience = Wisdom.)