Preamp making loud pitched morse code sound
@ghosthouse thanks for the OP clarification, lol. When I plug the TT directly into the receiver, no noise at all but the sounds isn't amplified at all (obviously) so maybe it's there and I just can't hear it, but nothing audible. Stereo Exchange talked to Ron Sutherland directly this morning. He's a small company and said he's all about customer satisfaction so he's going to take the preamp back if we're unable to come up with a solution. He did tell them that the preamp "has a wide band design and sensitive to RFI," which should definitely be a huge disclaimer to customers prior to purchasing. Living in NYC, there's no way to avoid RFI and I don't ever want to have to turn off my phone, wifi, lights, wear a tin foil hat to have to listen to records lol. We heard the noise when we plugged my preamp and TT up at the store before I left and the noise was worse, it was actually picking up radio signals. I'm most likely going to take it back but now I have to figure out which preamp to get that isn't going to give me the same problems :/ |
Hi All, Just catching up to all these messages. Much thanks for everyone's input. @oldhvymec the preamp doesn't have a ground switch, just the nut for the ground wire. the TT itself doesn't have an external ground. Apparently the way Rega makes their turntables, they're grounded internally so I don't really have options there. That being said, this isn't really a ground "hum" as I've heard it being described. @jdane that's what i plan on doing. Anyone have any reccos? @terry9 I have a good set of interconnects that go from the preamp to the receiver, shielded and all. The interconnects coming from the rega are integrated so I can't really mess with those. @filipedine that would just eliminate noise coming from the AC source but not whatever is going on inside the preamp if it's picking up RF though I'd imagine? @rmdmoore I did that and the noise did change a bit! I actually turned off everything in my home that emits that type of frequency and still heard the noise - phones, tv, tablets, router...as mentioned previously, i live in Brooklyn and my setup is near a big window so I don't think I can hide from RF, unfortunately. @musicfan2349 that's exactly how i'd describe the sound, lol! TBH, the store is really push about letting me return things which I find very annoying. They said they had to call ron sutherland and ask him if he could take the product back. They really don't allow returns, so I think I need to find a shop that does. I just read about this preamp last night, https://www.analogplanet.com/content/qhw-audio%E2%80%99s-surprising-%E2%80%9C-vinyl%E2%80%9D-mmmc-phono-preamp which sounds good, I just don't know what to look for/what not to look for that would point to a preamp possibly picking up RF. If any one has any suggestions, I'd love to hear? On another note, I'm new to this board and maybe making my replies more consolidated than I'm able to. When I try to @ people, only a few members show up in the drop down list? Is there a way to reply back to specific people so they know I've seen/appreciate their response and am replying back to them? |
You can use an RTL-SDR to find the frequency, That would give a hint as to what it is... Ron didn't see so communicative when I was trying to be helpful that it wasn't morse code but cpu noise, so I didnt get to ask if it changed in pitch or intensity. Wow you really went the extra mile. I’ve only spoken to him via email I believe and he was super short with me too. TBH I didn’t wanna deal with it if it wasn’t an easy fix. I returned it back to the store today and am going to get a different preamp. Any suggestions welcome. |
