declankennedy
New member
- Joined
- Sep 26, 2018
- Messages
- 4
Hi everyone -
I once saw mention of using a transformer to create an isolated direct out from a speaker tap, and it's something I'd like to try building. If I were to tap off of the speaker connections on a guitar amp and connect those to a transformer input, what winding ratio would be the most desirable if I wanted to send the transformer output to a line input? Would I want an impedance ratio that roughly matches the amp output (8 Ohms?) to the impedance of the line input (10K Ohms?), or would I want a ratio that adheres to the "10x" output-to-input concept (step up the 8 Ohms to ~1K Ohms)? Would it be better to do this into a mic pre instead of line input?
If I'm right in thinking I need to step up the impedance, would I need to pad the output of the transformer because of the resulting voltage step up? If it's not clear already, I have only a very rudimentary understanding of these topics, so please let me know if I'm way off on anything.
Thanks!
DK
I once saw mention of using a transformer to create an isolated direct out from a speaker tap, and it's something I'd like to try building. If I were to tap off of the speaker connections on a guitar amp and connect those to a transformer input, what winding ratio would be the most desirable if I wanted to send the transformer output to a line input? Would I want an impedance ratio that roughly matches the amp output (8 Ohms?) to the impedance of the line input (10K Ohms?), or would I want a ratio that adheres to the "10x" output-to-input concept (step up the 8 Ohms to ~1K Ohms)? Would it be better to do this into a mic pre instead of line input?
If I'm right in thinking I need to step up the impedance, would I need to pad the output of the transformer because of the resulting voltage step up? If it's not clear already, I have only a very rudimentary understanding of these topics, so please let me know if I'm way off on anything.
Thanks!
DK