Döhmann Helix Two Original operating instructions

HELIX TWO Mk2 INSTALLATION & OPERATION GUIDE
1
DA-MAN-H2-003 www.dohma audio.com
HELIX TWO
Mk2 Pho ograph
I stallatio & Operatio Guide

HELIX TWO Mk2 INSTALLATION & OPERATION GUIDE
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DA-MAN-H2-003 www.dohma audio.com
Table of Co te ts
A Note from Döhma Audio . . . . . . . . . 3
The Helix Two . . . . . . . . . . . 4
Importa t Messages to be Read Before U packi g the Tur table . . . . . 5
Ope i g the Shippi g Case . . . . . . . . . 6
Packi g List . . . . . . . . . . . 6
U packi g a d Assembli g the Helix Two . . . . . . . 7
Adjusti g the I ter al Suspe ded Chassis Height . . . . . . . 13
Operati g the Helix Two . . . . . . . . . . 14
Speed Co trol . . . . . . . . . . . 14
Each Tur table has a Serial Number . . . . . . . . 15
Register Your Tur table . . . . . . . . . . 15
The Data a d exter al Power Port . . . . . . . . 16
Helix Two Features . . . . . . . . . . 16
Specificatio s . . . . . . . . . . . 17
Customer Support . . . . . . . . . . 18
Factory Co tact I formatio . . . . . . . . . 18

HELIX TWO Mk2 INSTALLATION & OPERATION GUIDE
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DA-MAN-H2-003 www.dohma audio.com
A Message from Döhma Audio
Tha k you for i vesti g i a Döhma Audio Helix Two Mk2 tur table.
We believe that to u lock the pote tial of the i formatio co tai ed i the grooves of a vi yl record a d to
experie ce absolute emotio al e gageme t with a artist’s work, it takes a audio system where atte tio
has bee placed o the smallest details a d time has bee take to perfect the desig .
I spired by the u ique visio of audio desig er Mark Döhma , Döhma Audio leads a o-holds-barred
assault o what is possible i co temporary audio tur table & to earm desig . Ack owledgi g the lege dary
pio eers that have come before us, we look forward a d strive to create the most adva ced a alogue audio
systems available today.
Your Helix Two tur table i corporates state-of-the-art tech ologies that have previously ever bee applied
to audio applicatio s. It is a heirloom quality i dustrial work of art that has bee desig ed to give you the
ultimate e joyme t of your record collectio .
Döhma Audio co ti ues to i ovate a d ma ufacture class leadi g products to support our visio for
excelle ce i e gi eeri g a d musical playback performa ce. All i ovatio s are based o reproducible
e gi eeri g pri ciples, ot marketi g hype.
Music is o e of the greatest expressio s of the huma soul. We have meticulously crafted this tur table to
faithfully deliver the esse ce of every performa ce. E joy!
Mark Döhmann – Director of Design and Systems Architecture

HELIX TWO Mk2 INSTALLATION & OPERATION GUIDE
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DA-MAN-H2-003 www.dohma audio.com
The Helix Two
The Helix Two Mk2 i corporates the Döhma tech ologies i to a smaller footpri t with a si gle to earm
facility a d is e gi eered to deliver u paralleled performa ce i a alogue playback.
It is the result of ma y years of research, developme t, collaboratio a d liste i g by i ter atio ally
acclaimed a alogue desig er Mark Döhma .
Mark ide tified the specific challe ges of desig i g a ew be chmark tur table a d the explored what
tech ologies exist i the world that address these challe ges. After i vestigati g solutio s used i aerospace,
spectrometry, medical imagi g a d electro microscopy, Mark i corporated these tech ologies i to a ew
tur table desig .
Due to its fully i tegrated Mi usK vibratio isolatio system utilizi g NSM a d mecha ical crossover
tech ology, its ability to deal with vibratio a d reso a ce is u surpassed a d allows the music to be e joyed
with a outsta di g level of realism.
The Helix Two has a ew custom desig ed Swiss-ma ufactured motor which i corporates the very latest
tech ology arou d co sta t torque performa ce a d quiet ess of operatio .
The Helix Two is desig ed to operate flawlessly i o -ideal e viro me ts such as older houses with woode
floors, upper floors, attics where exter al vibratio s are carried through buildi gs – eve those made from
co crete, steel, a d brick. Due to its revolutio ary vibratio isolatio system, it is also ot depe de t o a
high-quality audiophile sta d.
The desig has made it possible to i corporate a level of e gi eeri g previously ot possible at this price poi t
a d as a result, the Helix Two is co sidered to be outsta di g value. The more compact dime sio s a d o e
box desig allow it to be used i smaller spaces a d sta dard sized sta ds.
Ofte chose by discer i g audiophiles arou d the world as their refere ce a alogue system, as well as bei g
the tur table of choice for ma y high-e d bra ds exhibiti g i major i ter atio al hi-fi shows, the Helix Two
simply allows the music to flow a d the full pote tial of the system to be achieved.

HELIX TWO Mk2 INSTALLATION & OPERATION GUIDE
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Importa t Messages to be Read Before U packi g the Tur table
Please read a d e sure that you u dersta d the followi g i formatio before proceedi g to u pack, assemble
a d operate the tur table.
CAUTION:
CAUTION:CAUTION:
CAUTION:
The fully packed shippi g crate ca weigh i the
order of 65-80kg (143-177 lbs). Please use a suitable trolley
or tra sportatio device to move it to the i stallatio
locatio .
CAUTION
CAUTIONCAUTION
CAUTION:
::
: The tur table assembly i the bottom
compartme t weighs approximately 30kg (60 lbs).
A two-perso lift is required for safety. Check your local
occupatio al safety regulatio s whe i doubt.
WARNING
WARNINGWARNING
WARNING:
::
: Please read the i structio s
carefully before i stalli g the tur table.
Never ope the tur table chassis!
Electrical Shock hazard.
Whe i doubt, please co tact your dealer.
WARNING:
WARNING:WARNING:
WARNING: Never move the table from a flat surface
without the tra sportatio screws i place. If the tur table
is moved without the tra sportatio screws i place, the
i ter al isolatio mecha ism ca be damaged a d such
damage is ot covered u der warra ty.
RECOMMENDED:
RECOMMENDED:RECOMMENDED:
RECOMMENDED:
Please retai the tra sport screws i
the eve t the table must be moved at a later date.

HELIX TWO Mk2 INSTALLATION & OPERATION GUIDE
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Ope i g the Shippi g Case
The Helix Two is shipped i a si gle professio al road case. The lid has two pia o hi ges o o e side a d two
co ve tio al hi ges o the other side.
To ope the lid, twist the two pia o keys a d lift the lid ope via the two rear hi ges. There are 3 mai
compartme ts. The top compartme t co tai s the platter, clamp a d accessories. The bottom compartme t
co tai s the tur table a d the compartme t o the right co tai s the optio al to earm. If a to earm has ot
bee shipped with the tur table, the right compartme t will be empty.
The beari g assembly is tra sported pre-lubricated, attached to the tur table chassis. The platter assembly
comes complete with the upper beari g assembly which is precisio matched to the i verted beari g post
fou d o the chassis.
A 5mm (3/16 i ch) ball beari g is co tai ed withi the beari g housi g. Whe mou ti g the platter to the
chassis platform please e sure the ball beari g is i side the i verted beari g post a d has ’t dropped out i
shippi g. If the ball beari g is missi g, replaceme t ball beari gs are available from your dealer.
The twi belts are also pre-i stalled o the platter from the factory for easy tra sport.
For ease of i stallatio , a brightly coloured stri g is supplied to facilitate the quick a d easy i stallatio of the
belts over the pulley. Please ote that a y twi e or cord approx. 30cm (12 i ches) i le gth is suitable for this
purpose. The tur table is located i the bottom compartme t.
Packi g List
•200ml bottle of Sulliva s Cove Award Wi i g Si gle Malt Whisky (a gift from us to you)
•A gift card
•A pair of white gloves
•A bubble level
•Coloured stri g to facilitate the fitti g of the belts arou d the motor spi dle
•Döhma Audio Helix Two Tur table
•Helix Two Flight Case
•To earm if ordered
•Helix Two User Ma ual

HELIX TWO Mk2 INSTALLATION & OPERATION GUIDE
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U packi g a d Assembli g the Helix Two
STEP 1
STEP 1STEP 1
STEP 1
Bri g the Helix Two road case i to positio for u packi g a d i stallatio . Remember to use a trolley of
tra sportatio device due to the weight of the road case. To ope the lid, twist the two pia o keys a d lift the
lid ope via the two rear hi ges.
STEP 2
STEP 2STEP 2
STEP 2
The platter, clamp a d accessories are embedded withi a block of solid black foam which we refer to as the
‘top compartme t’. Place your ha ds dow either side of the top compartme t, grip the bottom edges of the
block of foam a d lift the top compartme t vertically up a d out of the road case. Place the top compartme t
o the floor or somewhere where you ca access it later. You will ow be able to see the tur table wrapped i
plastic located i the bottom compartme t.
We hope that you e joy our gift to you, the award wi i g Sulliva s Cove si gle malt whisky. We advise that
for the sake of completi g the tur table i stallatio accurately, that you co sume it after, ot prior to
i stallatio .  স হ ঺ ঻

HELIX TWO Mk2 INSTALLATION & OPERATION GUIDE
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STEP 3
STEP 3STEP 3
STEP 3
Remove the tur table from the bottom road case a d place i fi al operatio al positio . Recomme ded
i stallatio requires a surface capable of supporti g up to 60Kg (120 lbs) a d a 480mm (19”) wide x 480mm
(19”) deep surface which allows space for the power cable to exit eatly.
STEP 4
STEP 4STEP 4
STEP 4
Please ote the 4 x LONG M6 tra sport securi g screws used to lock the table chassis to the suspe sio
system (vibratio isolatio platform) duri g shippi g. They are located ear the i er edge of the Platter Ri g
show below.
O ce the tur table is i its fi al operati g positio , remove the 4 x LONG M6 tra sport securi g screws with
a Alle wre ch (Hex key).
* VERY IMPORTANT
* VERY IMPORTANT* VERY IMPORTANT
* VERY IMPORTANT –
––
– T
TT
The
he he
he tra sport screws must be
tra sport screws must be tra sport screws must be
tra sport screws must be u screwed eve
u screwed eveu screwed eve
u screwed eve ly. Start with o e screw a d
ly. Start with o e screw a d ly. Start with o e screw a d
ly. Start with o e screw a d u screw it
u screw it u screw it
u screw it
for a few rotatio s, the move to the ext
for a few rotatio s, the move to the ext for a few rotatio s, the move to the ext
for a few rotatio s, the move to the ext screw a d
screw a d screw a d
screw a d u screw
u screw u screw
u screw it
it it
it for the same amou t of rotatio s, the the
for the same amou t of rotatio s, the the for the same amou t of rotatio s, the the
for the same amou t of rotatio s, the the
same for the third screw a d the the same for the fourth screw.
same for the third screw a d the the same for the fourth screw. same for the third screw a d the the same for the fourth screw.
same for the third screw a d the the same for the fourth screw. Retur to the first screw a d the repeat
Retur to the first screw a d the repeat Retur to the first screw a d the repeat
Retur to the first screw a d the repeat
this process so that the
this process so that the this process so that the
this process so that the top of the tur table rises eve ly a d is ot lo
top of the tur table rises eve ly a d is ot lotop of the tur table rises eve ly a d is ot lo
top of the tur table rises eve ly a d is ot lop
pp
psided. To make this easier, it is
sided. To make this easier, it is sided. To make this easier, it is
sided. To make this easier, it is
recomme ded that
recomme ded that recomme ded that
recomme ded that you place o e ha d o the surface a d ge tly push dow while u screwi g each of the
you place o e ha d o the surface a d ge tly push dow while u screwi g each of the you place o e ha d o the surface a d ge tly push dow while u screwi g each of the
you place o e ha d o the surface a d ge tly push dow while u screwi g each of the
screws
screws screws
screws so that you avoid the mecha ism
so that you avoid the mecha ism so that you avoid the mecha ism
so that you avoid the mecha ism pushi g up u eve ly as the screws are u screwed a d eve tually
pushi g up u eve ly as the screws are u screwed a d eve tually pushi g up u eve ly as the screws are u screwed a d eve tually
pushi g up u eve ly as the screws are u screwed a d eve tually
removed.
removed.removed.
removed. If the two
If the twoIf the two
If the two screws
screws screws
screws o o e side are u screwed a d removed prior to the other screws o the other
o o e side are u screwed a d removed prior to the other screws o the other o o e side are u screwed a d removed prior to the other screws o the other
o o e side are u screwed a d removed prior to the other screws o the other
side bei g u screwed a d removed, the
side bei g u screwed a d removed, the side bei g u screwed a d removed, the
side bei g u screwed a d removed, the i ter al mecha ism may ‘s ap up’ u eve ly a d this ca damage the
i ter al mecha ism may ‘s ap up’ u eve ly a d this ca damage the i ter al mecha ism may ‘s ap up’ u eve ly a d this ca damage the
i ter al mecha ism may ‘s ap up’ u eve ly a d this ca damage the
i ter al mecha ism
i ter al mecha ismi ter al mecha ism
i ter al mecha ism. PLEASE AVOID THIS POSSIBILITY BY FOLLOWING
. PLEASE AVOID THIS POSSIBILITY BY FOLLOWING. PLEASE AVOID THIS POSSIBILITY BY FOLLOWING
. PLEASE AVOID THIS POSSIBILITY BY FOLLOWING THE
THE THE
THE ABOVE INSTRUCTIONS CAREFULLY.
ABOVE INSTRUCTIONS CAREFULLY.ABOVE INSTRUCTIONS CAREFULLY.
ABOVE INSTRUCTIONS CAREFULLY.
* I the eve t that the Helix Two
* I the eve t that the Helix Two * I the eve t that the Helix Two
* I the eve t that the Helix Two is moved at a later date, the tra sport screw
is moved at a later date, the tra sport screwis moved at a later date, the tra sport screw
is moved at a later date, the tra sport screws
ss
s must be
must be must be
must be screwed
screwedscrewed
screwed i eve
i evei eve
i eve ly i
ly i ly i
ly i
the exact opposite process
the exact opposite processthe exact opposite process
the exact opposite process to the o e described above. THIS
to the o e described above. THIS to the o e described above. THIS
to the o e described above. THIS MUST HAPPEN PRIOR TO ATTEMPTING TO MOVE
MUST HAPPEN PRIOR TO ATTEMPTING TO MOVE MUST HAPPEN PRIOR TO ATTEMPTING TO MOVE
MUST HAPPEN PRIOR TO ATTEMPTING TO MOVE
THE
THE THE
THE TURNTABLE.
TURNTABLE.TURNTABLE.
TURNTABLE.
* WARNING: If the tur table sustai s damage due to a failure to comply with these i structio s, the cost of
* WARNING: If the tur table sustai s damage due to a failure to comply with these i structio s, the cost of * WARNING: If the tur table sustai s damage due to a failure to comply with these i structio s, the cost of
* WARNING: If the tur table sustai s damage due to a failure to comply with these i structio s, the cost of
repairs will ot be covered by the Döhma Audio Warra ty policy.
repairs will ot be covered by the Döhma Audio Warra ty policy.repairs will ot be covered by the Döhma Audio Warra ty policy.
repairs will ot be covered by the Döhma Audio Warra ty policy.
* Please retai the tra sport screws i the eve t the table must be moved at a later date.
CAUTION:
CAUTION:CAUTION:
CAUTION: The tur table assembly i the bottom compartme t weighs
approximately 30kg (66 lbs). A two-perso lift is required for safety.
Check your local occupatio al safety regulatio s whe i doubt.

HELIX TWO Mk2 INSTALLATION & OPERATION GUIDE
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STEP 5
STEP 5STEP 5
STEP 5
Place a soft bla ket or cloth o a flat surface to place the platter o . Remove the platter from the top
compartme t solid foam a d place it o the bla ket with the beari g side up. Remove the soft plastic beari g
protector o the u derside of the beari g to reveal the beari g assembly o the bottom of the platter.
Remove the soft plastic beari g protector from the i verted beari g post o the chassis.
STEP 6
STEP 6STEP 6
STEP 6
Perform a i itial levelli g of the chassis by wi di g each of the four feet up or dow . Use a bubble level o
the top plate of the chassis as a starti g poi t. Visually check each foot to e sure that all four are firmly
co ecti g with the surface of the shelf that the tur table is placed o .
STEP 7
STEP 7STEP 7
STEP 7
Faste the record clamp to the spi dle. The record clamp is the desig ed to also be the most secure ha dle to
move the platter i to placeme t positio . Check that the twi belts are sitti g i the matchi g grooves o the
platter.
Loop the supplied brightly coloured stri g (or a y suitable stri g/cord) behi d both belts to e able the belts to
be pulled over the motor spi dle with ease.

HELIX TWO Mk2 INSTALLATION & OPERATION GUIDE
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STEP 8
STEP 8STEP 8
STEP 8
Ge tly lower the platter to the beari g & feed the stri g through the rear portal o the side of the motor
spi dle. Fi ish loweri g the platter o to the beari g & pull the stri g with the two belts attached up a d over
the motor spi dle. O ce the belts are i the motor spi dle grooves, ge tly remove the stri g.
STEP
STEP STEP
STEP 9
99
9
U pack the exter al power supply a d place the u it o the floor or o a other shelf away from the tur table.