RideTheCrash
Member
I have an old early '70s Sonax bass amp made by Yorkville. I got it for free pretty much. When I got it, I put a new Eminence speaker in because the old one was blown. At one point I killed it, because I accidently unscrewed a screw in the back which held the grounding wire. My father in law fixed that.
When I got it back, it made a loud airy sound, but it wasn't annoying or anything. Back in October '05, my brother borrowed it for a practice and took it way downtown and didn't have a way to get it back, so it sat there until today (it was a good distance, and confusing to get there) when I went with my brother to pick it up finally.
The amp had apparently been untouched the whole stay there. Anyway, I pulled it in today and as soon as I hit the power button it made a large ZAAP noise followed by rather loud hum. In fact, the hum sounded like when you sit your guitar somewhere and a string is vibrating and you can sort of hear it.
I plugged a guitar into it and when I play a power chord for example, it distorts and it sounds like a terrible vibrato effect. So I plugged a bass into it and it sounded like the speaker was blown. I check to make sure all the screws were tight and the cabinet seemed fine. I lugged the 15" speaker out of it and it looked perfect. No breaks or anything. So I painfully put it back by myself.
I have no idea what to do. It doesn't matter where it's plugged in, and lights don't seem to have any effect on it. I'm not going to attempt opening it up, because I'll probably kill something again, but what do you guys think it could be? I'm going to have my father in law look at it again when he can though. I wondered if maybe the positive and negative leads on the speaker were connected backwards, but I don't want to try reversing them, because I don't know if I'll blow it up or something.
Help!
When I got it back, it made a loud airy sound, but it wasn't annoying or anything. Back in October '05, my brother borrowed it for a practice and took it way downtown and didn't have a way to get it back, so it sat there until today (it was a good distance, and confusing to get there) when I went with my brother to pick it up finally.
The amp had apparently been untouched the whole stay there. Anyway, I pulled it in today and as soon as I hit the power button it made a large ZAAP noise followed by rather loud hum. In fact, the hum sounded like when you sit your guitar somewhere and a string is vibrating and you can sort of hear it.
I plugged a guitar into it and when I play a power chord for example, it distorts and it sounds like a terrible vibrato effect. So I plugged a bass into it and it sounded like the speaker was blown. I check to make sure all the screws were tight and the cabinet seemed fine. I lugged the 15" speaker out of it and it looked perfect. No breaks or anything. So I painfully put it back by myself.
I have no idea what to do. It doesn't matter where it's plugged in, and lights don't seem to have any effect on it. I'm not going to attempt opening it up, because I'll probably kill something again, but what do you guys think it could be? I'm going to have my father in law look at it again when he can though. I wondered if maybe the positive and negative leads on the speaker were connected backwards, but I don't want to try reversing them, because I don't know if I'll blow it up or something.
Help!
