I have plucked up the courage to try making something from a diagram I made the most of the CarlosFM snubberised PSU board and have added it between the rectifier and amp on my rev 3 LM3875 kit.
I left out 1 of the 10,000 uF caps in case..
1) they exploded when I plugged it in - I bet they really do go bang too - they're pretty big...
2) they take up more space than I have spare in the case
((I actually put a bike crash helmet on to switch it all on for the first time again.... ))
Anyway, its been going for 1/2 hour and hasn't gone bang yet.
I was a bit worried because I don't have a common ground - it's a dual mono kit - I have +ve / 0 and 0 /-ve but worked out which way to put the caps (I'm new to electronics... can you tell )
The sound which was already beautifully clear and detailed seems possibly slightly fuller - the bass is punchier - the speakers I'm using aren't great for bass so the difference may be more obvious.
The biggest change is how much louder I can turn up the preamp before any distortion - it goes loud enough for the sound to be completely enveloping now - I'm well chuffed..... again.
I'm getting another set of bits to do the same for the other 2 channels tomorrow.
Thanks to CarlosFM for creating it and for making the design available
quickshift = happy bunny
I left out 1 of the 10,000 uF caps in case..
1) they exploded when I plugged it in - I bet they really do go bang too - they're pretty big...
2) they take up more space than I have spare in the case
((I actually put a bike crash helmet on to switch it all on for the first time again.... ))
Anyway, its been going for 1/2 hour and hasn't gone bang yet.
I was a bit worried because I don't have a common ground - it's a dual mono kit - I have +ve / 0 and 0 /-ve but worked out which way to put the caps (I'm new to electronics... can you tell )
The sound which was already beautifully clear and detailed seems possibly slightly fuller - the bass is punchier - the speakers I'm using aren't great for bass so the difference may be more obvious.
The biggest change is how much louder I can turn up the preamp before any distortion - it goes loud enough for the sound to be completely enveloping now - I'm well chuffed..... again.
I'm getting another set of bits to do the same for the other 2 channels tomorrow.
Thanks to CarlosFM for creating it and for making the design available
quickshift = happy bunny
- Status
- This old topic is closed. If you want to reopen this topic, contact a moderator using the "Report Post" button.