It has a sub out and Roland says it can handle small PA duties. Wattage specs are not absolutes and not a measure of efficiency or sound levels produced. Therefore one companies 100 (2 x 50) watts may produce a lower sound level than another companies 60 watts (2 x 30). If your keyboard has built in speakers already and you want to fortify it somewhat to play at "acoustic" volume levels with nice tone, say the range of an upright piano for mellow wedding ceremonies, this little stereo amp may do the trick. Guitar Center stocks these in their acoustic guitar rooms and I will be trying one in tandem with a digital piano with built in speakers.


[This message has been edited by alfredo (edited 07-02-2006).]