Try grounding the CA7. You may have a grounding problem that goes away when you hook up a Nak to an ML component that is itself properly grounded. For example, the cable ground/drain on the MLs may be connected to chassis ground. Connecting the CA7 with the PA7 may not provide the same grounding solution. Run a wire from any chassis screw on the CA7 to a known good ground (start by trying any screw on a grounded ML component). If there's a little spark when you complete the connection, you may have a faulty electrical component in the Nak circuitry. This would require a professional service center to fix. If there's no little spark and the hum goes away, you're done.
help with humming noise?
I recently bought a nak ca7 and pa7 as a second system.when i hook those two components together, the speaker emit a humming noise. yet when i try cd direct to amp - no noise. then i use my ML 336 to ca 7 no noise. ml 380s to pa7 no noise. they are all using same source and ic/speaker cable.
I am confused
what's the problem ? more importantly, how can i fix it?
I am confused
what's the problem ? more importantly, how can i fix it?