Audio Note IO I - Manual (Page 10)

The cartridge body is equipped with mounting holes in the top surface to accept the
supplied mounting bolts. They are spaced 12.7mm apart, (across the width of the
cartridge body) which is the industry standard distance. Additionally, the IO I has six
mounting holes – three per side – rather than the conventional two; this is to provide
the most rigid and secure coupling possible between cartridge and headshell.
A pair of high quality hex head bolts and nuts, and an appropriately sized wrench are
provided for mounting the cartridge body to the head-shell.
Pass the bolts down (from above) through the mounting holes in the head-shell, and
align them with the holes in the top surface of the cartridge body.
Carefully align the nuts below each bolt, and tighten them gently to hold the cartridge
securely in place.
Do not fully tighten the bolts until all cartridge alignment procedures have been
completed. (Once all alignment has been finalized, an extra four fixing bolts and nuts
may be installed if you wish, to maximize the rigidity of the cartridge / headshell
interface. Please remember to readjust the tracking weight!).
Once the cartridge is in place, set the correct tracking weight. Do this BEFORE the
final adjustments are made for cartridge alignment, as this will help to ensure the
cantilever is not damaged due to excessive tracking force. Once final alignment
adjustments have been made, it will be necessary to check the tracking weight again,
as any movement of the cartridge body will change the tracking weight.
The optimum tracking weight for the IO Limited is
2.5g. Remember to remove the
clear acrylic stylus guard before setting the tracking weight!
IO I INSTALLATION continued…