anyone help me with my speakers , im living in the newcastle area . speaker is cutting in the protection circuit on my amp when playing music just above very low one channel only took to my local repair shop [ not a hifi specialist] and he has tracked down to treble unit , driver is ok removed and tested fine but says when connected is dropping to 3 ohms ,looks like a problem with the crossover . he is not confident of the repair due to not having a circuit diagram and its a busy speaker inside , im happy to pay anyone with the skill to sort , mick