03-16-2019, 11:24 AM
Hi,
Most players or phones have a low impedance output. The phono input may have been designed for a higher impedance device, and there will be a mis-match. I know what you're talking about though, you have to turn the player on full, and the radio almost full to hear it.
Some have used a matching transformer between the input and the output of the player.
Also, you have to combine or 'sum' the left and right outputs of the player. I've used a couple of 2K to 5K resistors in series with the L and R outputs, then feed that mono signal into an input. That though will not solve your impedance match.
We don't know the model of RCA you're using. But that generally, is what the issue is. The radio/amp input is looking for a high impedance source, and your player is low impedance. Take care.
Most players or phones have a low impedance output. The phono input may have been designed for a higher impedance device, and there will be a mis-match. I know what you're talking about though, you have to turn the player on full, and the radio almost full to hear it.
Some have used a matching transformer between the input and the output of the player.
Also, you have to combine or 'sum' the left and right outputs of the player. I've used a couple of 2K to 5K resistors in series with the L and R outputs, then feed that mono signal into an input. That though will not solve your impedance match.
We don't know the model of RCA you're using. But that generally, is what the issue is. The radio/amp input is looking for a high impedance source, and your player is low impedance. Take care.
