Buzzing from speakers on TT rig


Looking for a little help or suggestions:

I have a Marantz TT15S1 hooked up to one of several amps. There was 0 noise in the beginning. I was using the Phono Input on the MF integrated. I added a Rogue Triton phono stage and all was good for a few days. Then the buzzing started. It was to the point where if you touch any point of the tone arm it makes weird static noises and touching the ground wire into the Rogue makes loud pops! I re-arranged the wiring and it seemed to help. Now I moved everything around on the racks and it's louder than ever. I took the Rogue out of the circuit and ran through the phono on the MF A1008 and there is still a slight buzz but not a violent snapping like with the Rogue. Ohh and I floated the ground on the Rogue and it made no difference. 

Even through using only the MF phono input I can make the buzzing vary a little by wiggling the ground cable around. Very frustrated. Is there a better way to ground that may help, could it be in the cartridge or TT wiring? My digital system is 100% noise free so I think my power is ok. Rogue is being shipped back for a replacement but I hope I don't have the same thing when I receive it. Should a vinyl rig be basically noise free or should expect some static? Sorry for the long winded rambling post! I am very new to the vinyl world. 

 

Thanks in advance for any ideas!

Jason

mofojo

Showing 12 responses by mofojo

Thanks Ralph.

On the Marantz unit the rcas and ground that would normally be be replaceable at the back of the unit go all the way to the phono pre through the tone arm into the cartridge. I’m looking this up and not coming up with anything for a replacement if needed. I’m calling it tt15s1 wire set and tt15s1 cartridge wiring? Something else I should be calling it? Guessing I need to try and call Marantz. 
 

I’m going to disconnect and reconnect the 4 cartrdige wires and re seat nice and tight. If that does not do it I guess try and order a new “wire set”? Seems really strange something in the wiring would go bad or break when the unit is just sitting there. 

I guess it could be possible but would you think it would only be out of one channel that the interconnect is on? 

If that’s the case what would one do? Order new tone arm cable and install install I’m guessing? When I took the Rogue out of the system and went direct into the integrated the whole issue with touching the arm and causing buzzing went away. Still had a constant much lower buzz in the speakers though but not effected anymore by touching the tone arm. 

I hear you although it was basically noise free a few weeks ago. I did send the Rogue back waiting on a replacement. It was not a static issue but violent snapping popping as soon as you touched anything. I also agree it seems like some grounding issue. Hopefully the unit really does have problems and I’m not running them through the runaround. 

I don’t know if it worked yet or not. Didn’t get a chance to try cause of holiday BS. Will try some time this weekend. I did feel the ground cable coming out of the TT and feel it may be split inside the cord! Maybe that’s wishful thinking but shall see. 

Hello everyone. Still got the problem in a new location with a new Phono Pre and dedicated outlets. Is it possible to upload a video of what’s going on? Thinking maybe seeing and hearing what I got going may give some peeps a different idea and would be greatly appreciated. 

Will do thanks. Just left for delayed blizzard holiday. I’ll post next week. 
 

thanks! 

Ok Ralph I tried your above suggestion and it made no difference. 
 

When nothing playing and the volume is turned up a bit there is a descent amount of static through the speakers. If I touch the base with 2 fingers it knocks it out completely as long as I hold my fingers there. Buzzing when touch of run fingers down the tone arm when it’s parked. Definitely seems like some kind of grounding deal but I’m at a loss. 

So from right by the cartridge it was 18ohms and under where the tone arms attaches under the table was 0ohms at a small screw. Went with a ground from the preamp to a small nut on the lower part of the attachment point and knocked it out completely…. Silence … perfect. I took it off and on a few times by hand and it stayed all good for about a half hour. Then it was back even worse. Ended up doing a ground from preamp to the anti skate nut and so far seems to be fine. Obviously “I think?” It’s in the cable that’s permanently connected to the tone arm. Weird thing is when I tried several days before in all those same grounding scenarios it would not go away. Pretty sure it’s coming back and maybe I should figure out how to order a new complete cable set? 

Oh for Christs sake. It’s back lol. Gonna bring the table up tomorrow and monkey around with how this cable set connects to different things I guess. Just wrote that and was playing downstairs for 20 min just went down to shut the system down. 

I don’t believe it’s under warranty, I bought it used but will look into it. When you say the tone arm has a bad ground you are saying split in the wire inside? Any idea how the ground is attached to the tone arm? Do you think a new wire set would potentially fix the issue?