Try the Behringer Eurolive series. Cheap as but good quality and ideal for kareoke I'd say. The B205D is 125W RMS with 2 mic/instrument inputs, CD input, mixer and a basic EQ. It also has the facility to send the output to another one, so for £300 you could buy two and link them if it ain't loud enough. Anyway, that's the kind of thing you want.
Try the Behringer Eurolive series. Cheap as but good quality and ideal for kareoke I'd say. The B205D is 125W RMS with 2 mic/instrument inputs, CD input, mixer and a basic EQ. It also has the facility to send the output to another one, so for £300 you could buy two and link them if it ain't loud enough. Anyway, that's the kind of thing you want.