Jump to content

Sign in to follow this  
Mat-with-one-t

All turntable cartridge output is a balanced signal, yes?

Recommended Posts

Hi gang. I'm continuing on my steep learning curve procrastination.....I mean.....research. I am setting up new gear, and plan to integrate my old Pro-ject 6.1 tt into the new system. I currently use a modest little Creek phono stage.

My new setup can potentially be totally balanced front to back. No, this is not a debate about single ended vs balanced post!

Rather, I am interested in advice on how to get the best out of the turntable connections (and no, it's not a post about placement, vibration isolation either!).

I have a pre with balanced XLR in and out. I have true balanced XLR in Monoblock valve power amps.

One set of balanced inputs to pre will be taken by a dac, leaving one spare.

So (whew) this is the question. If one runs RCA leads from tt (as it is currently), are these technically carrying a balanced signal? If so, then I assume if up I use/build a phono stage that can keep a balanced signal to pre, then we still have a true balanced signal?

Or, does the tt need rewiring for XLR outs?

Or, does it not make a difference?

Or......?

Ideas?

Share this post


Link to post
Share on other sites
Guest Hensa

I'm no expert on this but there is some interesting reading on the Aqvox site. I use a CEC (designed by the Aqvox designer) balanced phono stage which is utterly silent but whether that is purely down to the balanced connections or not, I couldn't tell you. I do know that the sound is dramatically better with the balanced inputs on this particular phono stage.

 

Scroll down the linked page for the information. They also have a list of tonearms (including Project) that are considered suitable for a balanced connection (they have a floating ground).

 

http://www.aqvox.de/phono.html

Share this post


Link to post
Share on other sites

I'm no expert on this but there is some interesting reading on the Aqvox site. I use a CEC (designed by the Aqvox designer) balanced phono stage which is utterly silent but whether that is purely down to the balanced connections or not, I couldn't tell you. I do know that the sound is dramatically better with the balanced inputs on this particular phono stage.

 

Scroll down the linked page for the information. They also have a list of tonearms (including Project) that are considered suitable for a balanced connection (they have a floating ground).

 

http://www.aqvox.de/phono.html

 

hmmmm would love to try this phono to see if it would quiet down my main cart

Share this post


Link to post
Share on other sites
Guest Hensa

hmmmm would love to try this phono to see if it would quiet down my main cart

 

Here's the CEC equivalent which can be had for a lot less and sounds remarkable with the balanced inputs (only for MC carts). It certainly eliminated some hum I was getting from a Dyna 17D2 before that cart was retired.

 

http://www.cec-web.co.jp/products/amp/ph53/ph53_e.html

Edited by Hensa

Share this post


Link to post
Share on other sites


Here's the CEC equivalent which can be had for a lot less and sounds remarkable with the balanced inputs (only for MC carts). It certainly eliminated some hum I was getting from a Dyna 17D2 before that cart was retired.

 

http://www.cec-web.co.jp/products/amp/ph53/ph53_e.html

 

thanks mate who sells them?

 

i guess i should experiment with my parasound to see if it's the tube noise

Share this post


Link to post
Share on other sites

 The correct operation of a balanced input, requires that  all shielding or screens  have to be separated from the signal wires which are referred to as hot (+) 0 and cold (-). For phono ccts this means that depending on the cartridge type and if SUT,s are in use , the operation can either be floating or balanced to ground.Added to this the cables running from the pickup arm to the preamp need to be  of a twin shielded type and the plugs ,most likely, XLR types. The main hindrance to a balanced connection will be dependent on how the pickup arm wires are terminated at the arm base, as this can be quite a task to  do  neatly.

Edited by VanArn

Share this post


Link to post
Share on other sites
Guest Hensa

thanks mate who sells them?

 

Not sure - got mine from a former distributor or dealer through ebay a year or so ago.

Share this post


Link to post
Share on other sites

Not sure - got mine from a former distributor or dealer through ebay a year or so ago.

 

lucky man. even the hifishark has no listing recorded there lol

Share this post


Link to post
Share on other sites


Hi gang. I'm continuing on my steep learning curve procrastination.....I mean.....research. I am setting up new gear, and plan to integrate my old Pro-ject 6.1 tt into the new system. I currently use a modest little Creek phono stage.

My new setup can potentially be totally balanced front to back. No, this is not a debate about single ended vs balanced post!

Rather, I am interested in advice on how to get the best out of the turntable connections (and no, it's not a post about placement, vibration isolation either!).

I have a pre with balanced XLR in and out. I have true balanced XLR in Monoblock valve power amps.

One set of balanced inputs to pre will be taken by a dac, leaving one spare.

So (whew) this is the question. If one runs RCA leads from tt (as it is currently), are these technically carrying a balanced signal? If so, then I assume if up I use/build a phono stage that can keep a balanced signal to pre, then we still have a true balanced signal?

Or, does the tt need rewiring for XLR outs?

Or, does it not make a difference?

Or......?

Ideas?

 

short answer is yes  to your question about is all cartridges are balanced signals

 

Duc

Edited by lovetube

Share this post


Link to post
Share on other sites

So (whew) this is the question. If one runs RCA leads from tt (as it is currently), are these technically carrying a balanced signal? If so, then I assume if up I use/build a phono stage that can keep a balanced signal to pre, then we still have a true balanced signal?

Or, does the tt need rewiring for XLR outs?

Or, does it not make a difference?

Or......?

Ideas?

 

The output of a cartridge is in principle balanced UNTIL one side (usually the negative) is connected to ground. This may happen at the cartridge (where the (-) side of one channel is connected to a magnetic screen around the cartridge internal wiring, or happen when one side of the cartridge wiring is connected to ground through normal, or 'single ended' connections using RCA cables.

 

To be absolutely clear, RCA cables cannot carry a balanced signal. 

Edited by johnmath

Share this post


Link to post
Share on other sites


Thanks for the maths John. Yeah that was always my understanding re the rca's. Thanks!

Mat.

if you want to use your balance on your phono then change the RCA on your tonearm output to XLR with the correct connection .

Share this post


Link to post
Share on other sites

Mat.

if you want to use your balance on your phono then change the RCA on your tonearm output to XLR with the correct connection .

Yeah I might ask about doing this when I drop the old girl in for a service.....

Share this post


Link to post
Share on other sites

Yeah I might ask about doing this when I drop the old girl in for a service.....

 

cool.

i convert one right now for the member here .

Duc

Share this post


Link to post
Share on other sites


Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.

Guest
Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

Sign in to follow this  

  • Recently Browsing   0 members

    No registered users viewing this page.

  • Similar Content

    • By Muzza71
      Item: Morrow Audio MA7 XLR 1m Interconnect Pair
      Location: Perth
      Price: $500 + shipping
      Item Condition: Good 8/10
      Reason for selling: Using RCA cables
      Payment Method: Pickup - Cash, Paypal, COD Only
      Extra Info: These are the original silver over copper cables. I had these made with the white sheath rather than the black.
      Will be supplied with the Morrow Audio cloth bag.
      These cables are very flexible.
      The RRP for these are USD $1399.00 plus shipping and import duties and taxes.
       
      Pictures:


    • By Big Nads
      Item: Rotel RC870BX
      Location: Albury 2640
      Price: $170
      Item Condition: Very good
      Reason for selling: NLR
      Payment Method: Pickup - Cash, Paypal, 
      Extra Info: My Rotel RC870bx Preamp  is not in use anymore and having a nice phono stage i think someone may be interested in adding it to their system.
      It is in very good condition and works well. The print around the volume/balance dial has been removed by myself as it was getting a bit shabby.
      I am happy to post and also willing to work a deal.
       
      Photos: Advertisements without photos of the actual item will not be approved.





    • By Doomguy
      I've been using a Technics SL-BD20 for about 3 years now since I got into vinyl, and after upgrading the rest of my chain I think it's time I graduated to something a little nicer. I'd like something under $400, which I'd say makes the used market a no-brainer. I suppose I'd like something with more consistent speed that is actually adjustable (my Technics has the counter weight and anti-skate configured from factory, and there doesn't appear to be any cart alignment possibilities). I found a Rega Planar 1 for $300, however the non-adjustable anti-skate and captive RCA cables don't impress me. Any pointers would be appreciated as I have to admit I don't really know what to look for, so a keener eye would be helpful!

      I should probably mention what the rest of my chain is. Currently: Technics SL-BD20 > Schiit Mani v1.2 > Marantz SR7500 > JDS Labs Atom > Sennheiser HD58X Jubilee. This is a headphone only setup for now, my current living situation just doesn't allow speakers at the moment. That'll come later.
    • By Cello Sweet.
      Item: Technics SL-120 direct drive turntable
      Location: Pennington
      Price: $500
      Item Condition:Excellent, no tonearm
      Reason for selling: Surplus to needs
      Payment Method: Pickup - Cash, Paypal, COD Only
      Extra Info: Beautiful Technics direct drive table in excellent condition. 
      complete with smoke-tinted lid ( no cracks) original feet and 45rpm adaptor. Comes with SME tonearm mounting plate. Any arm can be mounted by buying suitable mounting plates available on line.

       
      Photos: Advertisements without photos of the actual item will not be approved.




    • By BTt
      Item: Dynavector P75 Mk II phono
      Location: Melbourne
      Price: $380
      Item Condition: Excellent
      Reason for selling: Not being used / have not bought a Dynavector cartridge as planned.
      Payment Method: Pickup - Cash, Paypal, COD Only
      Extra Info:
      Purchased from a very knowledgeable forum member.  I bought it with plans to also buy a Dynavector DV20x2, but this has not happened.
       
      Photos:




       
       
×
×
  • Create New...