Also, if you have any network components close to your phono stage or cartridge you will subject it to RFI. Routers, wifi extenders, streamers should should be at least 1-1.5m away from phono stsge or cartridge. If turntable is close to amplifier the power transformer in the amp may also cause interference. Move it away.
Help! New Nagaoka MP 500 Cart Makes Hum Ground Noise
I have the new Nagaoka Mp 500 cart installed on my Techniques 1200G turntable connected to my Luxman 595 amp. When I turn the volume up, I hear a hum in the speakers. If I remove the cart from the arm, the hum goes away so I know it's the cart. It's with the original Techniqs head shell. I didn't have the issue with the Oltofon 2m Black LVM cart.
Aside from that, I like the MP 500 a lot. Sounds good. But I am freaking out... not sure what to do about the hum grounding noise?!?
On my luxman, I have both the turntable and the REL sub on the ground in the photo.
Here are the photos on imgur https://imgur.com/a/yEwvvAq
- ...
- 46 posts total
@audphile1 I am new the turntable hobby so I am learning... if you can please tell me: 1) For the Luxman 595 amp which is about $12,000.00 - should I expect no noise in the mm line? Also, the hum is there but less so even if I am listening to my streamer. I have to unplug the turntable RCA plugs completely to get rid of background noise compelety.... is that to be expected also? 2) Would I have this same issue if I would of bought the 891 Moon preamp with it’s built in phono stage? That one is 25k but I wouldn’t want to go down that road if the expectation is I would get a hum of any kind in the phono stage. I can turn up the music above the MP-500 but still the hum is pretty loud where it would be upsetting not to have a black background.
|
@dman777 new details emerging now. You didn’t mention hum on the other inputs. No you should not have that noise with your Luxman. You are dealing with ground loop or electrical interference. You need to figure out what it is. |
@audphile1 xlr connects on the streamer. But the hum is only there if I have the turntable RCA cables plugged in, regardless of what input I have selected on the amp. But the hum is a lot less loud when it’s not on the MM input. I have to emphasize that if I unplug the turntable RCA plugs, It gets rid of the hum completely regardless of what input I have the amp set on. Then at that point I have a true black background again as before I ever got to turntable hooked up. |
If you unplug XLRs and keep the table plugged in, what happens to the hum? Do you have a spare set of RCA cables you can try on digital so that all your connections are RCA? Is the streamer/dac plugged into to the same outlet as amp, table and sub? Did you check if outlet is properly grounded? Was there any hum at all with the Ortofon cartridge? |
- 46 posts total