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Thread: How to know a half speed mastered record is what it says

  1. #1
    Join Date: Apr 2016

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    Default How to know a half speed mastered record is what it says

    Couldn't find a specific place to post this so here we are. I have several half speed mastered albums that were part of a collection belonging to a reviewer in Canada, so original pressings at the time the records were released. I take these to be genuine. When searching eBay for half speed mastered records I find pre owned that were pressed back in the day and loads of brand new by Queen, Rolling Stones, Brian eno etc, now other than the label and sleeve claiming them to be half speed mastered how can they be found to be genuine. I mean anyone wanting to hike the prices of new pressed vinyl beyond the going rate could print labels and sleeves with anything they want. They still play at 33rpm as do the real thing. Any thoughts?
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  2. #2
    Join Date: Feb 2013

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    No way I know of really barring listening to its high freq response which should be really good.
    Most are taken from high quality digital recordings off the master tape as they don't like using the tapes now as they are getting worn out.
    Regards,
    Grant .... ؠ

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  3. #3
    Join Date: Jan 2016

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    I'm Slav.

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    Read Matrix/Runout and check on Discogs

  4. #4
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    I'm Andre.

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    Abbey road have been releasing Half speed masters. See the shop

  5. #5
    Join Date: Apr 2016

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    Quote Originally Posted by mac72 View Post
    Read Matrix/Runout and check on Discogs
    I'm not concerned with older half speed mastered but these brand new ones on eBay. Can't check the run out unless you buy it first but then I have some with what look like scratched on codes that anyone could do.
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  6. #6
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    Quote Originally Posted by Made in 1968 View Post
    Abbey road have been releasing Half speed masters. See the shop
    Most of those titles are on eBay so I take it they are genuine.
    Bakoon 11R Denon DP80 Stax UA-70 Shure Ultra 500 in a Martin Bastin body with jico stylus, project ds2 digital Lii audio crystal 10 tqwt speakers

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  7. #7
    Join Date: Feb 2013

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    All matrix codes are scratched on.
    If discogs says there is a half speed then you will be mostly there as it will be on the cover
    Regards,
    Grant .... ؠ

    I've said it before and I'll say it again: democracy simply-doesn't-work
    .... ..... ...... ...... ................... ..... ..... ..... ..... .....
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    **Men are not punished for their sins, but by them**Don't be such a big girl's blouse!**
    ***SMILE, BE HAPPY***

    RIP Terry... "We use only the finest baby frogs, dew picked and flown from Iraq, cleansed in finest quality spring water, lightly killed, and then sealed in a succulent Swiss quintuple smooth treble cream milk chocolate envelope and lovingly frosted with glucose."

  8. #8
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    I'm Andre.

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    Just buy from an official outlet like Abbey road themselves

  9. #9
    Join Date: Apr 2016

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    Quote Originally Posted by Made in 1968 View Post
    Just buy from an official outlet like Abbey road themselves
    I would if they had anything I liked.
    Bakoon 11R Denon DP80 Stax UA-70 Shure Ultra 500 in a Martin Bastin body with jico stylus, project ds2 digital Lii audio crystal 10 tqwt speakers

    Office system, DIY CSS fullrange speakers with aurum cantus G2 ribbons Najda dsp as dac Akai AM-U02 Jvc QL-A51 direct drive turntable
    leema sub. JVC Z4S cart is in the house

    Garage system another Sony receiver, cassette deck


    System components are subject to change without warning and at the discretion of the owner.

  10. #10
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    Quote Originally Posted by paulf-2007 View Post
    Couldn't find a specific place to post this so here we are. I have several half speed mastered albums that were part of a collection belonging to a reviewer in Canada, so original pressings at the time the records were released. I take these to be genuine.

    Any thoughts?
    Do your discs sound any good? It would surely be very hard for anyone not on the inside, or with forensic knowledge and test equipment to be able to verify or counter the claims, particularly if the recordings sound acceptable enough. The master disc might show signatures due to the material relaxing in a different way from a full speed master, but then a stamper would be produced in order to make the discs, and if there wasn't a huge run of discs, the finally produced records would probably not show any signs of how the master had been produced. If the run was large, then it would be even harder to tell, as each sub master would introduce more errors I think.

    I think looking at the HF response and distortion in the HF might be the best bet, but at the end of the day, as with many things, you probably won't have any definitive answers. If the records sound very poor, then I would tend to assume the claims are invalid. Otherwise, if they sound spectacularly good, the claims are perhaps true.

    It would be interesting to know what you think of the discs, and what you yourself decide about their production.
    Dave

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