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Marantz 6300 RCA replacement.

Dearslayer

Dearslayer

Super Member
So I have this TT but it's in a basement set up and gets very little play time. Was listening the other day and noticed that one channel was dropping in and out. I swapped out the TT for another to eliminate the possibility that it was the preamp or amp. As it turns out it I manipulate the cables the sound comes back. Seems to be a break in the cable perhaps somewhere. The connection where soldered inside seem good. I want to replace the cables with new while I have things apart so is it a simple as buying a new set of RCA's and cutting off the one end to solder to the tone arm? I will check latter on YouTube to see if there might be some direction. Any suggestions on how to step by step it?

Regards.
GT.
 
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Montycat said:
Ha! That's my picture.

You're welcome! :)
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You are not getting out that easy. I did the hard part, I googled the table images and found your picture. Now it is up to you to help Dearslayer out with the How To. But let's see if he comes back with questions.
 
The 6300 was made to be compatible with CD-4 and has low capacitance rca cables. Mine was doing the same as yours so I had Jack's installed so I can use any kind. I do have CD-4 and use that table for my quad set up.
 
Blue Shadow said:
You are not getting out that easy. I did the hard part, I googled the table images and found your picture. Now it is up to you to help Dearslayer out with the How To. But let's see if he comes back with questions.
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two questions actually... if I want to just hard wire new RCA's would it be best to buy a set with the RCA''s with the connectors and just cut off one end and solder the cut end or try to find cables with just RCA's on one end and bare wire on the other end to solder......Am I to assume there are no Turntable specific RCA's and any regular RCA's will do?

If I want to install RCA jacks as Wayner suggested and as Chrisxo demonstrated in the photo would the Jacks also need a ground connection beside the RCA jacks?

G.T.
 
Dearslayer said:
two questions actually... if I want to just hard wire new RCA's would it be best to buy a set with the RCA''s with the connectors and just cut off one end and solder the cut end or try to find cables with just RCA's on one end and bare wire on the other end to solder......Am I to assume there are no Turntable specific RCA's and any regular RCA's will do?

If I want to install RCA jacks as Wayner suggested and as Chrisxo demonstrated in the photo would the Jacks also need a ground connection beside the RCA jacks?

G.T.
Click to expand...

Regular RCA cables might be ok, but this turntable deserves better. Basic cables might have poor shielding and high capacitance both of which are undesirable. The signal from your cartridge is so low voltage it can be degraded by interference and long cable runs.

There are "turntable specific" ones, kind of, or at least recommended ones. Check Blue Jeans for example: https://www.bluejeanscable.com/store/audio/index.htm. Their cables are good value as higher grade ones go. If you want to go even cheaper though, you can cut the ends off video RCA cables, the RGB ones. They happen to have good shielding and low capacitance. Their main drawback is that they are fat and stiff. That won't be a problem if you are willing to make a larger hole through the back of the Marantz though be sure to anchor the cable somehow so it doesn't strain the solder junctions.

If you do install a plate you won't even have to cut any cables but don't use long cables as they have again the issues of capacitance etc. And yes, you should put a ground wire terminal on the plate too.
 
If you do install a plate you won't even have to cut any cables but don't use long cables as they have again the issues of capacitance etc. And yes, you should put a ground wire terminal on the plate too.[/QUOTE]

Awesome.. Thanks for the link. If I decide to go with the Jacks at the rear of the unit ( leaning in this direction ) I would still need cable to wire from Tone arm to the Jacks though, so it brings me back to the same question I guess. Referring to the "RGB "ones in your post , do you mean the RED/Green/Blue cables usually used for game units/TV etc ? I happen to have a bunch of those at home that I could cut to get a small section to go from Tone arm to the Jacks.
 
Yes, those video cables. However, I wouldn't bother cutting those up for the few inches inside unless you really do have excess ones. That distance is so short that the cable quality is not really a big factor. It won't hurt of course!
 
Thanks... yes I have a bunch of those cables that I haven't used. I guess it won't matter which ones I use be it, Red... Green....or blue??? assuming all three are the same??
 
Yes, they are all the same. I sometimes use them for turntable replacements and typically use the red and blue for external cables. I end up with green ones left over.
 
Montycat said:
Yes, they are all the same. I sometimes use them for turntable replacements and typically use the red and blue for external cables. I end up with green ones left over.
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Thanks for the help. I know I have some of those jacks around somewhere but I looked this morning after the night shift and couldn't find them. May need to purchase some. I'll follow up with photos once I get to it.

GT.
 
Montycat said:
Regular RCA cables might be ok, but this turntable deserves better. Basic cables might have poor shielding and high capacitance both of which are undesirable. The signal from your cartridge is so low voltage it can be degraded by interference and long cable runs.

There are "turntable specific" ones, kind of, or at least recommended ones. Check Blue Jeans for example: Stereo Cables at Blue Jeans Cable. Their cables are good value as higher grade ones go. If you want to go even cheaper though, you can cut the ends off video RCA cables, the RGB ones. They happen to have good shielding and low capacitance. Their main drawback is that they are fat and stiff. That won't be a problem if you are willing to make a larger hole through the back of the Marantz though be sure to anchor the cable somehow so it doesn't strain the solder junctions.

If you do install a plate you won't even have to cut any cables but don't use long cables as they have again the issues of capacitance etc. And yes, you should put a ground wire terminal on the plate too.
Click to expand...
Hi Montycat,
I am having a bad connection on one of my RCA terminals on my Marantz 6370Q, I am debating of only replacing the RCA connectors or replacing both cables as well. In your opinion is there enough reason to replace the original cables? Is there a specific RCA terminal I should look for? I would gratel appreciate your feedback.

Regards,
Roger
 
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