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Ortofon OM with Project Primary

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Ortofon OM with Project Primary

Postby davie_b1972 » 15 Oct 2017 20:25

Hi All,

I am looking for some advice regarding upgrading my stylus.

I have a Project primary turntable which is fitted with the OM5e cartridge and wondered to what point in the OM series an upgrade is worth it.
I could go for the 10 or 20, as far as I am aware the cartridge is the same so I can just slot in the stylus but is it worth upgrading anything beyond the 20?

My set up is:
Project Sterio Box S Phono
Project Primary Turntable
Dali Zensor 3 Speakers

Any comments are welcome :-)

Davie
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Re: Ortofon OM with Project Primary

Postby AlwaysAirborne » 15 Oct 2017 21:20

I am a big fan of the OM series and have owned most of carts. Ortofon has stated that the OM10, 20, 30, and 40 bodies are the same, but the OM 5 is a step below. I don't think the body matters much until you go above the Sylus 20.

As for which stylus, there is a small improvement going from the 5 to 10, but a large improvement moving from the 10 to the 20. The Stylus 20 is very dynamic and pulls out a lot of detail. It's a good all around stylus which provides plenty of bang for the buck. Probably your best choice. Still, I do think your system could find further gains going to the OM 30, but it is an expensive upgrade.
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Re: Ortofon OM with Project Primary

Postby billshurv » 15 Oct 2017 21:51

I agree. OM or SuperOM bodies are readily available if you do want to upgrade body as well. I could even lend you one if you fancied trying it out. I suspect the difference is not night and day though! stylus 20 on yours would be a good next step.
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Re: Ortofon OM with Project Primary

Postby davie_b1972 » 16 Oct 2017 20:36

Thank you for the reponses :-)

I was looking at the OM20 as an upgrade so thanks for all the info regarding this as I am a total newbie to this.

I had contacted Henley who advised that my turntable would be more suitable with the OM10 due to the tonearm, maybe it is limited or something I do know it came set up though!!

I am still tempted to go for the OM20, the other option is to totally upgrade my turntable but this is something I am reluctant to do so its getting the best out of what I have.

Another recommendation I forgot to metion was a platter as I still have the felt one it came with.

Would I get anything reasonible for about £30 which would help?

BTW Bill thank you very much for this offer and I may take you up on it at some point :-)

Davie
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Re: Ortofon OM with Project Primary

Postby billshurv » 16 Oct 2017 22:22

I don't see why henley would say that unless they are trying to sell you a new table as an upgrade. The stylus 20 is a nude elliptical, but other than that identical to the stylus 10. Nude is good, but sadly as you can see more costly

Both of these are higher compliance that the 5e (20 vs 25cu) which is no show stopper and do track a little lighter. Your project is fixed at 1.75g which is top of the range for the 10 and 20. But so far nothing not to like IMO :).

As for platter mat. I'm a felt fan so can't really comment.
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Re: Ortofon OM with Project Primary

Postby AlwaysAirborne » 17 Oct 2017 01:21

When you are starting out the real trick is getting the most improvement for your money. I think you are off to a great start. Granted your turntable is entry level, but it will give you the benefits from a nicer mid-range stylus like the Stylus 20.

With a little creativity you can adjust the tracking weight for your cartridge if you want to bring it closer to 1.50g after you upgrade. You should have a cheap digital turntable stylus force gauge to set the tracking force. Here is a UK Amazon link to show you an example.
https://www.amazon.com/Neoteck-Digital-Turntable-Backlight-Cartridge/dp/B01HRJ9NAY

A new record mat won't affect your sound much, but I own a PatheWings KNB mat from Germany. I like the cork/rubber combo. The record doesn't slip, some resonant frequencies may be reduced, and static is never a problem. Many respected audiophiles would suggest a simple cork mat which is both inexpensive and effective. I'll let others chime in with more suggestions.
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Re: Ortofon OM with Project Primary

Postby davie_b1972 » 17 Oct 2017 19:30

Thank you for clarifying this for me the 20 seems like a really good upgrade.

Im not sure how the tracking works and dont even know how to balance it ita supposed to be set up in the factory but I wouldnt know if it is or not this is my tone arm it looks limited for making adjustments though.
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Re: Ortofon OM with Project Primary

Postby billshurv » 17 Oct 2017 20:28

Ah that is very easy to deal with slight adjustments.
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Re: Ortofon OM with Project Primary

Postby davie_b1972 » 17 Oct 2017 21:01

Bill how do I know if it is set up correctly?
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Re: Ortofon OM with Project Primary

Postby billshurv » 17 Oct 2017 22:14

stylus force gauge. measure VTF. every vinyl lover should have them. start at around £5 :)
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Re: Ortofon OM with Project Primary

Postby davie_b1972 » 17 Oct 2017 22:27

Great thats it ordered!!
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Re: Ortofon OM with Project Primary

Postby cultjake » 17 Oct 2017 22:29

From personal experience, I was able to get an OM-30 stylus assembly and ran it
on my existing OM-5 body. It was a great improvement.

If I'm not mistaken, the main differences are the stylus geometries:
OM-5 conical
OM-10 elliptical
OM-20 hyper-elliptical
OM-30 fine line
OM-40 shibata

Assuming compatible compliance, cartridge performance is driven by stylus shape
and transducer design (ie. MM vs MC). You'll definitely hear a difference between
the OM-5 and the OM-20.
'84 Linn LP12, Magnepan Unitrac, AT-OC9ml2
Yamaha A-1020 driving Polk Monitor 70's
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Re: Ortofon OM with Project Primary

Postby billshurv » 17 Oct 2017 22:32

great, when you have it you can experiment. first check you are currently at 1.75g then try adding some weight with bluetak to get it down to 1.5g. start with 1p and see what that does. You might be able to slide the counterweight back a smidge, but hard to tell that from the picture.
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Re: Ortofon OM with Project Primary

Postby davie_b1972 » 17 Oct 2017 23:03

The counterweight can still be moved about 0.5cm I am not sure why but there is the number 81 on the back of it.
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Re: Ortofon OM with Project Primary

Postby billshurv » 18 Oct 2017 00:03

possibly 81grams.
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