Nagaoka MP-50 pickup - diyAudio
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Old 12th April 2004, 01:24 PM   #1
plysch is offline plysch  Sweden
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Default Nagaoka MP-50 pickup

Hallo anadicts.

Does anyone in this forum have any experience of the Nagaoka MP-50 p.u?? Is it good for 300$?

I´m looking for a new MM cartridge and don´t really know what to buy. Or do you have any suggestions on any other p.u in the pricerange of 300-500$.
I have a very limited posibitlity to test the p.u´s, becaues I live very far from a deasent audiodealer so I must trust your ears (or the reviews)...

THANX
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Old 12th April 2004, 03:28 PM   #2
sreten is offline sreten  United Kingdom
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As far as I know the MP50 is no longer made, I would
expect there to be more suitable choices available.

What cartridge you need depends first and
foremost on the quality of your turntable and arm.

Secondly the mass of the arm and to a degree
the type of arm fixed or detachable headshell.

Thirdly to a degree the sort of tonal balance you
want, rich, neutral or bright.

Fourthly to a degree practical issues, stylus
life, cost of spare styli, ease of mounting etc.

What turntable and arm do you have ?

What sort of sound are you looking for / expecting ?

sreten.
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Old 12th April 2004, 03:58 PM   #3
plysch is offline plysch  Sweden
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sreten: Today I´ve got a Thoréns TD320mkII, but I´m building an own designed table at the moment. It will be non suspension table with lots of mass and a glued birch platter (84mm thick, leadfilled) with external motor (teres) and a copy of there bearing.

The arm is an homemade 'Ladegaard's Air Bearing Tangential Tonearm' with a balsa arm (don´t know the word in english but it´s built with many small pieces crossing eachother, like bridges are built....hope you understand) so the arm is very lightweight.

I would like a natural sound, not to warm anyhow, I use tube amplifiers and they are quite rich in there sound.
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Old 12th April 2004, 05:06 PM   #4
sreten is offline sreten  United Kingdom
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Wow !

Not an easy thing to give an opinion on, but I will .

From what I remember the MP50 was a fairly heavy cartridge
and high compliance, too much for almost the cartridge itself
and a poor choice for a typical japanese turntable.

However your "lattice work" arm is very hard to picture,
except its like a crain arm, or as you say like a bridge.

You say it will be very low mass, fair enough but how much
the lateral mass is higher than the vertical mass is hard to
judge, assuming you do not have a lateral pivot.

For these types of arms a decent tracking weight is a positive
help but if it is low mass in both planes you need a high compliance.
Given the construction of the arm a low mass cartridge will help
the arm "have its own sound" compared to a heavy cartridge.

From what you've said and the application I think the Ortofon
OM 30 Super with the weight removed is a great choice for a
"blind" purchase, far more so than the Nagoaka.

It has an extended line contact stylus (which lasts more
than twice as long as and also sounds better than an
elliptical stylus) and allows decent tracking force without
record wear due to the extended contact.

It may be a little bright but you say that's not a problem.

Should also work well in your current Thorens, though
you may need the weight to balance the arm correctly.

As its not popular in the UK (we like the 530) from here :

http://www.mantra-audio.co.uk/mantraonline.htm

Its available for 137 euros which if you check european prices
also makes it extremely good value - its 200 to 250 in Europe.


sreten.

(P.S. given your arm balsa construction I'd check the model
plane making community as to how to add very lightweight
wrap around sheeting - its the way to do it )
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Old 12th April 2004, 05:22 PM   #5
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$300 for a Nagaoka?! Daylight robbery. Unless that's Zimbabwean dollars.

For usd300 you can buy a real cart like a 103R
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Old 12th April 2004, 07:23 PM   #6
sreten is offline sreten  United Kingdom
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Just add an MP50 stylus is £140 in the UK, OM30 £75.

sreten.
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Old 12th April 2004, 07:34 PM   #7
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The Nagaoka MP 50 is available NOS in Sweden but they are of course old and probably overpriced.
Sretens wiev on "covering" the arm is rigt, this is done with ricepaper glued onto the structure and then "doped" with a laquer shrinking the paper resulting in a very stiff and strong structure.
Add a little weigth and go for a good Grado, it will at least work good in the Thorens if You find it too "gentle" soundwise.
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Old 12th April 2004, 08:11 PM   #8
sreten is offline sreten  United Kingdom
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sorry IA,

but Grado's are rich sounding, which is not asked for, and extortionate prices for very mundane tip technology IMO.

Not that I don't like them, I do, they do sound nice, the Black in the States is fantastic VFM.

sreten.
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Old 12th April 2004, 09:18 PM   #9
plysch is offline plysch  Sweden
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Hmmm, "ricepaper glued onto the structure and then "doped" with a laquer shrinking", then it will kill the stunning looks and look more like a threewalled tube. I will give it a try naked first.
Should I put weight in the arm, if so should it be evenly spread from top to back, in apperance of ex. a brassrod?? How much is needed? I don´t want a too heavy arm, because then I must have a more powerful airpump.

Thankyou so far.
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Old 13th April 2004, 12:23 AM   #10
sreten is offline sreten  United Kingdom
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why consider weighting the arm ? surely destroys the point ?

sreten.
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