Hello all! My name is Phosphenic, and I'm trying to learn diy audio.
I started a build for a diy stompbox/foot tap drum. I'd like to run it into a chain where the guitar plugs in and an output plugs into the amp.
The guitar is 78 k ohm at unknown mV and the "microphone" is an 8 ohm speaker at unknown mV. Is it possible to add it into the same instrument line as the guitar? I tried putting it in parallel and series and the speaker only produces sound. I'm assuming I have a dbv/dbu mismatch, or impedance mismatch, or both.
I spent a lot of time looking for a solution and I've come to the conclusion, I completely do not understand electronics.
Will an audio transformer step down work? Or do I need to preamp the guitar, then impedance match the mic to instrument?
I would prefer not to use a preamp.
Thanks everyone!
I started a build for a diy stompbox/foot tap drum. I'd like to run it into a chain where the guitar plugs in and an output plugs into the amp.
The guitar is 78 k ohm at unknown mV and the "microphone" is an 8 ohm speaker at unknown mV. Is it possible to add it into the same instrument line as the guitar? I tried putting it in parallel and series and the speaker only produces sound. I'm assuming I have a dbv/dbu mismatch, or impedance mismatch, or both.
I spent a lot of time looking for a solution and I've come to the conclusion, I completely do not understand electronics.
Will an audio transformer step down work? Or do I need to preamp the guitar, then impedance match the mic to instrument?
I would prefer not to use a preamp.
Thanks everyone!
Here is some diy eye candy for a thread bump.
https://instagram.com/p/9xBDe8OTsI/
https://instagram.com/p/9xBDe8OTsI/
An externally hosted image should be here but it was not working when we last tested it.
No ideas? I'm thinking I may try an impedance matching transformer online. It's $10 but no guarantee it'll work. I was hoping to scavenge a transformer from old parts and use that. I've got one I pulled out of an old answering machine, but it only stepped up 32ohms to ~100ohms. If I used a mic that would be 5,000ohms to 15,000ohms. I need 50-60 I guess.
I was hoping to use a speaker as a mic for good bass response, not an actual mic.
I was hoping to use a speaker as a mic for good bass response, not an actual mic.
Found some in some old stopwatches. Hooked it up like you said and it works great! Thanks so much Sreten. You're the man.
I'll post a video after its finished.
I'll post a video after its finished.
Hi,
Finding such an obscure source indicates even if
you don't understand electronics you have talent.
rgds, sreten.
- Status
- Not open for further replies.