HELIX ONE Mk2 INSTALLATION & OPERATION GUIDE
14
DA-MAN-H1-001
www.dohmannaudio.com
Adjusting the Internal Suspended Chassis Height
The Helix One turntable contains a MinusK Negative Stiffness Mechanism (NSM) which is integrated inside the
table chassis. This is a state-of-the-art mechanical resonance isolation device that is integral to the turntable’s
performance.
With the tonearm and cartridge mounted on the table, place a record on the platter and the clamp to achieve
play back weight.
Gently push down on the table till the suspension “bottoms” out. Then let go and observe if the suspension
rises. If it pops up and stays at the top of the vertical range then you have to lower the suspension by
adjusting the height adjustment knob on the rear of the table anti- clockwise (when you look from rear
of table).
If you depress the platter to the lowest limit of the suspension travel, you may hear a gentle ‘clunk’ sound.
This is nothing to be concerned about and is simply an indication that the suspension has reached the limit of
its downward travel range.
Gently lift the up the table till the suspension “tops” out. Then let go and observe if the suspension falls. If it
stays bottomed out then you have to raise the suspension by adjusting the height adjustment knob on the
rear of the table clockwise (when you look from rear of table).
The suspension is working best when it floats halfway between the upper limit of travel and the lower limit of
travel. It will become easy to do this with a little practice.
Please note: Heavy tonearms, different weight clamps, wide ambient temperature fluctuations can sometimes
affect the “float”. Simple adjustment will correct the float to work at optimum. When new the suspension will
settle over a period of a few days to weeks. Minor adjustments are all that should be needed to re-float the
suspension. It is normal to check this periodically over the first few months of operation.
Height
Adjustment
Knob