backspace119
Member of the Trade
- Joined
- Feb 3, 2014
- Posts
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- 10
Ok so I built tangent's CMoy and 2 days ago the initial test went well. Then I added a simple bass boost circuit in series AFTER the feedback resistor (the cap was .22uf and the resistor was a 10k) and it got a slight boost and sounded ok. I then localized the bass boost circuit to the main board which caused issues at first but I believe I somewhat resolved them....it was distorted still but ok for a test setup. I then moved the components back offboard for another issue I was having and used a pot for the resistor on the filter instead and used a .1uf cap. It "kind of" worked if setup after the feedback resistor as it was yesterday. I saw somehwere that it works better if set before the resistor though. I did that today and now music is unrecognizeable no matter what value the pot is at because of MASSIVE distortion. I had to change headphones today because my original test pair went missing (I do my work at a workshop in my school and I believe someone picked them up and walked off) and the new ones are lower impedance I believe. I thought adding 47 ohms to R5 would fix this issue but it just made the distortion softer...I guess I should mention I'm using a TL082C for the opamp.....any suggestions for fixing this until my BurrBrown OPA2132PA gets here?