mr.datsun wrote:jr41, I hadn't thought of the rigidity – I have no experience of the ME adjuster and you may be right. I have a Rega 2mm round spacer to run my Planar3/RB300 with the DV 10x5. I run mine with a very slight downward tilt towards the back of the arm and I think 4mm would have been too high. Also, the 4mm wouldn't even fit as the threaded neck on the RB300 is too short to take another. Talking of rigidity I 'd rather have no spacer and do think about going to a Rega Exact for that reason but I enjoy the 10x5 too much to risk changing.
I've read that a slight downward tilt improves sound, in fact I think Rega themselves recommend this.
I looked at the Rega Exact, but based on my experiences with the Elys2 and the reading I've done on Rega cartridges in general, I'm inclined to steer clear of them. The RB303 uses a three point mounting system, so providing the spacers are fixed I don't imagine they'll introduce any play. Nice cartridge, I've read lots of good things about the 10X5 - it's another option I'm considering.
A downward tilt (back of cartridge higher than front) will typically shift the tonal balance towards higher frequencies, while a backward tilt (back of cartridge lower than front) will tend to decrease the high frequencies.
The ideal VTA will give you wide soundstaging and good imaging, as well as balanced frequency response. Different cartridges may have different ideal VTA or stylus rake angles, for instance, my Shelter 901 was best when riding lower in back.
Of course, the advantage of using a Rega cart is that your VTA is optimized without needing any spacers or other adjustments. Just align the cart, set the VTF, and you're ready to roll.
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