Needledrops and demo tracks

Discussion in 'Hi-Fi and General Audio' started by RobHolt, Jul 4, 2010.

  1. RobHolt

    RobHolt Moderator

    Joined:
    Oct 24, 2004
    Messages:
    4,126
    Likes Received:
    9
    Have a nice vinyl front end or been doing something interesting with it lately?
    Found a £15 cartridge that beats a £5000 Koetsu? ........ well let's it!

    This is the thread for posting links for download so that we can all sample what you've achieved.

    Doesn't have to be a vinyl front end of course.
    Could be digital transports, cables, pre amps........
     
    RobHolt, Jul 4, 2010
    #1
  2. RobHolt

    Stuart

    Joined:
    Aug 6, 2004
    Messages:
    320
    Likes Received:
    0
    Location:
    Melbourne, Australia
    Cartridge Loading

    To kick things off hear (ho ho) are the results of my first tentative steps into DIY - loading plugs for the phono stage.

    I recently swapped from a MC cart to a MI cart. My phono stage - P75 - has only one setting for MM/MI which, as is usual, is set to 47Kohm. My cart is supposed to be best at 32KOhm so I grabbed the iron and a couple of RCA plugs and soldered a 100Kohm resister across signal to earth. Adding a 'Y' adaptor to the input of the phono stage allows the input plugs to be used in parallel with the output from the cart, providing a correct load.

    I only used one album to compare. It may not be ideal (ie. you may not like the songs) but does serve to demonstrate the impact of changing the loading. The links below are two samples of a couple of tracks, one using 47KOhm load and the other using 32KOhm load. They are recorded at 24bits / 96Khz and saved as .flac files. If you don't have software to open them with, you can download Audacity which will enable you to play.

    Miss You (47)
    Miss You (32)

    Before they make me run (47)
    Before they make me run (32)


    I think the effect is more apparent in the second track (before they make me run), and has certainly addressed what for me had been a very slight annoyance.

    Stuart.
     
    Stuart, Jul 5, 2010
    #2
  3. RobHolt

    RobHolt Moderator

    Joined:
    Oct 24, 2004
    Messages:
    4,126
    Likes Received:
    9
    Excellent Stuart, shall have a good listen to these later.
     
    RobHolt, Jul 5, 2010
    #3
  4. RobHolt

    UK Duty Paid

    Joined:
    Aug 17, 2009
    Messages:
    155
    Likes Received:
    0
    Stuart thanks but I think you can do a lot better recordings these look & sound suppressed & the difference is not significant

    If you experiment with upping the sound level in Audacity to around 3 - 6dB below where it clips you should get better results

    You may have to play with the recording level on the computer settings
     
    UK Duty Paid, Jul 5, 2010
    #4
  5. RobHolt

    flatpopely Trade - AudioFlat

    Joined:
    Jun 20, 2010
    Messages:
    273
    Likes Received:
    0
    Location:
    York
    Needledrops I have done in the past certainly have enough resolution to enable people to hear the differences in the equipment as I hear them at home, albeit not quite as well. I'll do some new ones for ZG and post soon.
     
    flatpopely, Jul 5, 2010
    #5
  6. RobHolt

    RobHolt Moderator

    Joined:
    Oct 24, 2004
    Messages:
    4,126
    Likes Received:
    9
    Had a good listen to both tracks.

    Those at 47k sound a little more extended at the top but also a bit splattery on transients. The 32k files trade a little extension for precision.

    Decca London or perhaps a good Grado?
     
    RobHolt, Jul 5, 2010
    #6
  7. RobHolt

    Stuart

    Joined:
    Aug 6, 2004
    Messages:
    320
    Likes Received:
    0
    Location:
    Melbourne, Australia
    Rob - yep, that's exactly it. At 47K the very top end is too peaky, loading at 32K tames it somewhat. I've not investigated capacitive loading yet.

    Would be nice to have a phono stage that allowed easy adjustment of these parameters.

    Good guess on the cart as well - London Gold.

    Stuart.
     
    Stuart, Jul 6, 2010
    #7
  8. RobHolt

    Stuart

    Joined:
    Aug 6, 2004
    Messages:
    320
    Likes Received:
    0
    Location:
    Melbourne, Australia
    Hi,

    If you mean the difference between the two loading values is not significant then yes, it is a very minor change in frequency response at the very upper end which may or may not be significant to different people. As to suppressed I'm not sure what you mean here - the levels weren't too low IIRC. Perhaps you could try this one - Rainy Day - which is a more simple piece, and explain where you think things are going wrong?

    Thanks,

    Stuart.
     
    Stuart, Jul 6, 2010
    #8
  9. RobHolt

    UK Duty Paid

    Joined:
    Aug 17, 2009
    Messages:
    155
    Likes Received:
    0
    No I'm talking specifically about the graph. There is a lot of white space above & below which with a higher recording level gets filled.
    I downloaded before they make me run & thought it sounded suppressed played via computer through my system & speakers

    I'll try the other track
     
    UK Duty Paid, Jul 6, 2010
    #9
  10. RobHolt

    UK Duty Paid

    Joined:
    Aug 17, 2009
    Messages:
    155
    Likes Received:
    0
    Hi Stuart

    I downloaded the Stones & I'm of the same opinion. The recordings are thin sounding. I looked up the track on Spotify & while only the remastered version is listed it is more what I would expect it should sound like.

    In terms of the loading the 32 Kohm is better on this cartridge.
     
    UK Duty Paid, Jul 6, 2010
    #10
  11. RobHolt

    flatpopely Trade - AudioFlat

    Joined:
    Jun 20, 2010
    Messages:
    273
    Likes Received:
    0
    Location:
    York
    Well its going to a while before I can do a new recording so here is one I did about a month ago:-

    http://www.mediafire.com/file/enejdhmizmn/Rite of Spring.wav

    Using the system on my sig and a Creative Audigy NX USB2 ADC with Audacity 1.3.

    Its Stravinsky - Rite of Spring - Philips red label #9500 323 - concertgebouworkest, Amsterdam - Colin Davis - 1977.

    I think this is about the best recording I have ever done!
     
    Last edited by a moderator: Jul 6, 2010
    flatpopely, Jul 6, 2010
    #11
  12. RobHolt

    RobHolt Moderator

    Joined:
    Oct 24, 2004
    Messages:
    4,126
    Likes Received:
    9
    Worth noting that he used 24/96 so plenty of res, though I'd agree always better to max the level.
     
    RobHolt, Jul 6, 2010
    #12
  13. RobHolt

    Dev Moderator

    Joined:
    Jun 19, 2003
    Messages:
    5,764
    Likes Received:
    4
    Location:
    Ilford, Essex, UK
    I've split the threads, please continue the discussion on the other Needledrop thread.

    Many Thanks.
     
    Dev, Jul 6, 2010
    #13
  14. RobHolt

    flatpopely Trade - AudioFlat

    Joined:
    Jun 20, 2010
    Messages:
    273
    Likes Received:
    0
    Location:
    York
    So, 'Rite of Spring' any good?
     
    flatpopely, Jul 6, 2010
    #14
  15. RobHolt

    Paul Ranson

    Joined:
    Sep 4, 2003
    Messages:
    1,602
    Likes Received:
    0
    Location:
    An octopus's garden.
    Stuart's recordings are within 3-6dB of clipping.

    'Some Girls' was recorded and mastered in the 70s when engineering standards were high. It has dynamics. If it sounds thin or quiet turn it up on a competent system. It's likely the 'remaster' is compressed and therefore sounds fatter and louder, but probably not better.

    FWIW the file contains 24 bit samples but I think only 16 bits are used. I suspect Audacity, which, on Windows at least, cannot capture at more than 16 bits.

    I think my copy of 'Some Girls' needs a wash but nevertheless here's a matching clip. If it's too quiet use Audacity to normalize. It's genuine 24 bit/96k.

    http://www.mediafire.com/?ofgwtgz2zzi

    Paul
     
    Paul Ranson, Jul 6, 2010
    #15
  16. RobHolt

    RobHolt Moderator

    Joined:
    Oct 24, 2004
    Messages:
    4,126
    Likes Received:
    9
    Paul/Andrew - downloading now for a listen.
     
    RobHolt, Jul 6, 2010
    #16
  17. RobHolt

    flatpopely Trade - AudioFlat

    Joined:
    Jun 20, 2010
    Messages:
    273
    Likes Received:
    0
    Location:
    York
    Rite of Spring has a HUGE dynamic range. Quite stunning, as well as being a beautful piece of music. Almost 'English' in its slight madness/paganism.
     
    flatpopely, Jul 6, 2010
    #17
  18. RobHolt

    RobHolt Moderator

    Joined:
    Oct 24, 2004
    Messages:
    4,126
    Likes Received:
    9
    Yup - and it sounded great Andrew.

    Just one question.
    Any idea how I remove burn't ESL diaphrams from the stators! :D


    Paul that doesn't sound like a Troika to me, at least compared to Stuarts's version on the Decca.
    New cartridge?
     
    RobHolt, Jul 6, 2010
    #18
  19. RobHolt

    flatpopely Trade - AudioFlat

    Joined:
    Jun 20, 2010
    Messages:
    273
    Likes Received:
    0
    Location:
    York
     
    flatpopely, Jul 6, 2010
    #19
  20. RobHolt

    RobHolt Moderator

    Joined:
    Oct 24, 2004
    Messages:
    4,126
    Likes Received:
    9
    Here's one with plenty of range - The Tivoli Symphony orchestra.
    This is an 80s Ortofon Direct Cut disc taking the output from the concert hall straight to the cutter with no tape in between.

    Needs to be played LOUD with the windows wide open for best effect ;)

    http://www.mediafire.com/?2iy2inz2kux
     
    RobHolt, Jul 6, 2010
    #20
Ask a Question

Want to reply to this thread or ask your own question?

You'll need to choose a username for the site, which only take a couple of moments (here). After that, you can post your question and our members will help you out.