Very late to this one but 52mm is the stylus to arm collar distance on an SPU. People working to 50mm are going to get a nasty tracking error.
Correct alignment for Fidelity Research 64fx/SPU?
Hello,
I've recently paired SPU Spirit with FR64fx (& additional counterweight).
FR64fx is mounted at 230mm pivot to spindle distance on my Garrard 301.
I currently experience a light distortion and mistracking. As I tried the SPU before on almost ad hoc mounted 3012 and that sounded technically correct (though not as convincing as with FR64fx in terms of emotional performance), I'm pretty convinced I will need to realign the tonearm.
I would appreciate any info related to an experience of 64/SPU users here, which would differ from a usual 230m PTS alignment. Also, I keep on reading that Stevenson alignment would be preferred, is there any explanation why so?
Basically I need to make a good decision as I have no armboard - whatever decision I make I will need to get a new top board with a new hole for a new alignment.
Many thanks!
I've recently paired SPU Spirit with FR64fx (& additional counterweight).
FR64fx is mounted at 230mm pivot to spindle distance on my Garrard 301.
I currently experience a light distortion and mistracking. As I tried the SPU before on almost ad hoc mounted 3012 and that sounded technically correct (though not as convincing as with FR64fx in terms of emotional performance), I'm pretty convinced I will need to realign the tonearm.
I would appreciate any info related to an experience of 64/SPU users here, which would differ from a usual 230m PTS alignment. Also, I keep on reading that Stevenson alignment would be preferred, is there any explanation why so?
Basically I need to make a good decision as I have no armboard - whatever decision I make I will need to get a new top board with a new hole for a new alignment.
Many thanks!