Topic: Transfering vinyl via the SONY PCM-M10 - PROBLEM SOLVED!!!

[ilduclo]

why not input from the headphone out to the m10, very simple?

[Jonas Karlsson]

why not input from the headphone out to the m10, very simple?

  Hahaha! You're brilliant! 

Still wonder why I got this hum through the tt-amplifier though, but now it's quiet as a mouse 

I suppose that won't give me any loss in soundquality? Better get me a superb quality cable to be sure.

THanks!

/Jonas

[ScoobieKW]

Headphone out has an additional amplifier and volume stage, it'll be good but not as good as a line out.

[Jonas Karlsson]

Hmm... ok, so really back to square one... 

It does sound a bit thinner using the headphone out...

Any other ideas of how to get rid of the hum when connecting the M10 to the amplifiers RCA-out? Where exactly does this hum start? The turntable? The tt-amplifier? Think it'll be quite hard to return the damn thing, saying that it "might" be something wrong with it, same goes with the turntable. If I return it to the store where I bought it, if they find no fault, they will charge me $100 only to check it.

[F.O.Bean]

yea the OLD turntable i had also had RCA outs as well

[Jonas Karlsson]

yea the OLD turntable i had also had RCA outs as well

?? Not following here ?? You mean the old turntable had built-in phono amplifier?

[yousef]

I feel your pain - this is the sort of thing that drives me mad.

It doesn't look like your amp has a tape-out so you can't go down that route...

Have you tried unplugging the tt to make sure that the hum is not coming from the Phonobox itself?

And is the hum still present if you use the Sony's mic-in input?

Have you done a freq analysis to see what the problem frequencies are - maybe that might be illuminating.

As a workaround (if the Phonobox is the problem) - could you plug the tt directly into the M10 and then apply the RIAA curve via software?

Just thinking out loud - feel free to ignore 

[Jonas Karlsson]

I feel your pain - this is the sort of thing that drives me mad.

It doesn't look like your amp has a tape-out so you can't go down that route...

Have you tried unplugging the tt to make sure that the hum is not coming from the Phonobox itself?

And is the hum still present if you use the Sony's mic-in input?

Have you done a freq analysis to see what the problem frequencies are - maybe that might be illuminating.

As a workaround (if the Phonobox is the problem) - could you plug the tt directly into the M10 and then apply the RIAA curve via software?

Just thinking out loud - feel free to ignore 

Ignore? Hell no! This is exactly what's needed at the moment!

I've tried to unplugg the power from the TT and keep the M10 connected to the Phonobox, the hum is still there. It's as soon as I plug the TT's RCA-cables into the Phonobox that the humming starts. So does this mean that it's the phonobox that is the problem? Unplugging the RCA's from the TT into the phonobox also takes away the hum.

By using the MIC IN on the M10 only makes the humming worse.

Not quite sure what you mean by applying the RIIA curve via software?

/Jonas

[H₂O]

You have the pre set to MM right?

[Jonas Karlsson]

You have the pre set to MM right?

Yes I have

[yousef]

I've tried to unplugg the power from the TT and keep the M10 connected to the Phonobox, the hum is still there. It's as soon as I plug the TT's RCA-cables into the Phonobox that the humming starts. So does this mean that it's the phonobox that is the problem? Unplugging the RCA's from the TT into the phonobox also takes away the hum.

Not quite sure what you mean by applying the RIIA curve via software?

/Jonas

So the hum is present only when the tt is connected, regardless of whether the tt is powered up or not? But only when the M10 is in the chain? My simple mind cannot account for that...

In terms of RIAA and software - I think there are plug-ins that do in software what the phono-stage does in real-life. If taking the Phonobox out of the equation removes the hum, I guess this could be a workaround. Not one I would be particularly happy with if I'd bought a decent tt and amp though.

I wonder if a dedicated vinyl forum might have some insight: http://www.vinylengine.com/turntable_forum/index.php

[Jonas Karlsson]

So the hum is present only when the tt is connected, regardless of whether the tt is powered up or not? But only when the M10 is in the chain? My simple mind cannot account for that...

In terms of RIAA and software - I think there are plug-ins that do in software what the phono-stage does in real-life. If taking the Phonobox out of the equation removes the hum, I guess this could be a workaround. Not one I would be particularly happy with if I'd bought a decent tt and amp though.

I wonder if a dedicated vinyl forum might have some insight: http://www.vinylengine.com/turntable_forum/index.php

The hum is present only when the RCA's from the turntable is connected to the phonobox, yes - but I can only hear it when I connect the M10. It cannot be heard over the speakers, at all!

I went to the store that sold the Phonobox and exchanged it for a new one, and it sounds exactly the same. Either the M10 can't handle the signal from the Phonobox, or the turntable is badly grounded...

/Jonas

[yousef]

...or the turntable is badly grounded...

I think this will turn out to be the nub of it. Flicking through some of the posts on the website linked above (before I got distracted by photos of high end and vintage tts...) I saw at least one recommendation for grounding the tt to the amp rather than the Phonobox. Might be worth a try.

FWIW I've got a Project Debut (either a II or III, can't remember now) with no speed box and have had no problems transferring vinyl to my M10 via my Sony amp. Might go back and listen more carefully now though...

[George]

I can test my old school fisher turntable>outboard phono box to my M10 and report back later this evening.  LMK if that interests you.

[Jonas Karlsson]

I can test my old school fisher turntable>outboard phono box to my M10 and report back later this evening.  LMK if that interests you.

Absolutely interests me  Thanks so much!

PROBLEM SOLVED !!!

It turns out all I had to do was to "ground" my M10 to the reciever. I used the mini-USB out from the M10 and plugged it into my reciever, where I can hook up a little "dong" that's make it possible to access my network (USB-connector).

Sorry about all the fuzz!