hi all
just seeking some advice
i bought a rel subwoofer recently. using its neutrik connector, high level connection, with live wires, one each to live speaker terminals and just one earth wire to either black terminal on speker output from the amp, i get a ginormous hum, definteley a 50Hz hum. i cannot get rid of it. and there is hardly any music coming from the sub.
rel describes the ground arrangment as star earthing. so i now use the low level inputs, driving the sub off the csp pre-amp.
just wondreing how i can make the speaker inputs on the sub work. with the positive wires connected, i tried touching the earth wire to one of the screws on the integrated and the hum disappered, not totally but very much less. but there was still no music out of the sub. i also tried plugging and unplugging equipment to trace any ground loop. no luck, even when the sub was plugged into another power point. help please!