Whitehall
Super Member
I don't mean your tummy rumbling, I mean background noise from a FM tuner.
Most manufacturers will offer a specification for tuner noise. The best are over 90 dB while most decent units are in the low 80's.
This is not noise coming down the antenna lead, its just noise generated within the tuner or tuner section.
Where does this noise come from and what can be down to lower it?
The reason I ask is that my Marantz 4300 has the best sound so far but has noticably more background hiss than my other units. Is this a maintenance issue or would specific modifications help?
Others have scoffed at my earlier suggestion that lower noise FETs in the RF front end and in the IF amp might be useful.
Most manufacturers will offer a specification for tuner noise. The best are over 90 dB while most decent units are in the low 80's.
This is not noise coming down the antenna lead, its just noise generated within the tuner or tuner section.
Where does this noise come from and what can be down to lower it?
The reason I ask is that my Marantz 4300 has the best sound so far but has noticably more background hiss than my other units. Is this a maintenance issue or would specific modifications help?
Others have scoffed at my earlier suggestion that lower noise FETs in the RF front end and in the IF amp might be useful.