I found the page do comprasion and analysis for relay Amplimo and Omron.
Speaker DC protection with relays
Thank you for the link. It helps a lot.
I've finally read through this thread and put down what seem to be important. one question before ordering the parts, I have one 600va (40 dual secondary) trans and two psu. Which is recommended, individual psu for each channel(15000*4) or one psu for two channel with larger capacitors(22000uf or higher *4)? The psu board has two channel on it. That's why I wonder which is better.
Hi Supernet.
You can use F30UA60S which are 30A rated.
Or you can use an off-board bridge rectifier module and connect its +out to cathode of D1 and -out to anode of D8.
edit: if you use the off-board bridge, connect the transformer's AC outputs to anode of D1 and cathode of D8 via a 1Kohm safety resistor in series with each AC connection (two resistors needed). You can use one AC output for each connection.
You can use F30UA60S which are 30A rated.
Or you can use an off-board bridge rectifier module and connect its +out to cathode of D1 and -out to anode of D8.
edit: if you use the off-board bridge, connect the transformer's AC outputs to anode of D1 and cathode of D8 via a 1Kohm safety resistor in series with each AC connection (two resistors needed). You can use one AC output for each connection.
Last edited:
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