Tonearm resonance / compliance question

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Fixxman32

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Dec 6, 2021
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162
Location
Norway
Hi, ive got a MoFi UD with its tonearm at 25.14gr ( from MoFi )
and ive paired that one with a Phasemation PP-200
Which weighs 10,5gr and has a dyne of:
8.5μ/mN [8.5x10-6cm/dyne]

Will the work fine together?
 
Fixxman32 said:
Hi, ive got a MoFi UD with its tonearm at 25.14gr ( from MoFi )
and ive paired that one with a Phasemation PP-200
Which weighs 10,5gr and has a dyne of:
8.5μ/mN [8.5x10-6cm/dyne]

Will the work fine together?
Click to expand...
Yeah, resonant frequency is around 9hz depending on the mass of your fasteners. Right in the sweet spot.

Calculate Tonearm - Cartridge Capability

mh-audio.nl mh-audio.nl
 
Fixxman32 said:
However, its not specified wheter 10 or 100hz .. and its japanese so presume 100hz?
Click to expand...
Ah, I did not know it was a Japanese cart. Those are indeed normally specified at 100hz, which isn't particularly helpful for our purposes.

Apparently you can loosely estimate compliance at 10hz by multiplying the 100hz compliance by about 2x.
 
If the data i found is correct, the included MoFi MasterTracker is at 17cu, whilst my Phasemation PP-200 is around 14
kvetcha said:
Ah, I did not know it was a Japanese cart. Those are indeed normally specified at 100hz, which isn't particularly helpful for our purposes.

Apparently you can loosely estimate compliance at 10hz by multiplying the 100hz compliance by about 2x.
Click to expand...
I based my cartridge purchase on weight-range of the antiskate.
MoFi specs are:
Notch 1: 4g – 6g cartridges
Notch 2: 6g – 8g cartridges
Notch 3: 8g – 10g cartridges
Notch 4: 10g – 12g cartridges

So i guess as long as i keep within 4-12gr carts im ok.
And i tried to read up on japanese vs eu/us compliance, and how to convert thoose numbers. My brain melted.. xD
 
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