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The 

SMARTractor

 is a versatile high-precision  

positioning and measuring instrument for use with 

phono tonearms and turntables. 

It covers all areas of the geometric tonearm  

alignment with high precision mechanical  

accuracy.

It also allows for precise measurement of  

Pivot-to-Spindle (P2S) mounting distance -  

of any given tonearm. 

 

SMARTractor

 offers true 1-point cartridge  

alignment to the tonearm, with a 

selection of  

5 different tangential curves

 to choose from.

As the 

SMARTractor

 operates with true  

tri-angular positioning, it applies to all pivot  

tonearms, regardless of the effective length,  

mounting distance or specific geometry a given 

tonearm may ask for.

To ensure highly precise measurement, the 

SMARTractor

 comes with a special designed 

vernier scale. 

This SMARTractor’s vernier scale provides  

accuracy in read-out of 5/100 mm.

Precise analog tonearm alignment is impossible 

without precise centering.

The 

SMARTractor

 is supplied with an universal 

2-part spindle-adapter to ensure precise fitting on 

the platter spindle and perfect centering without 

play.

Please check your 

SMARTractor

 package to  

ensure that all contents are included. 

All the above parts must be included to provide 

perfect function under all circumstances.

Each 

SMARTractor

 was carefully checked and 

tested prior to shipment.

Please do get yourself familiar to the handling and 

use of the 

SMARTractor

While it is a mechanical positioning instrument, it 

needs a minimum of attention to detail by the user 

to obtain the maximum precise results it ensures if 

handled correctly.

A brief 

introduction

Most important

:

  

Please study the step-by-step illustrated  

instruction to learn how to use and  

set-up the 

SMARTractor

 correctly.

To get access to all features of the 

SMARTractor

 

it is inevitable to read this manual. 

DISCLAIMER

Please use all parts with care and attention!
The use of the SMARTractor is on your own 

risk. 
Keep out of reach of children.
The SMARTractor set contains small parts 

that can be swallowed!!
The SMARTractor’s locator pin has a very 

sharp point and could easily penetrate human 

skin.

The manufacturer and the designer do not 

take any responsibility for possible damage 

or injury due to operation or handling of 

the SMARTractor or any of its parts.

The SMARTractor is made from materials 

that are particulary sensible to heat and bright 

sunlight.
Please use the SMARTractor with the same 

care as with the proper handling of analog 

records.
Please clean the mirrored surface of the 

SMARTractor using only a wet soft cloth!  

We find the best fabric to use is a wet  

microfiber cloth like those used to clean  

eyeglasses.
The manufacturer precisely calibrates the 

SMARTractor. 

DO NOT LOOSEN

 the screws fixing the 

Vernier scale on top of the black POM block 

guiding the measurement scale.

Summary of Contents for SMARTractor

Page 1: ...Universal high precision triangular positioning alignment instrument for optimized analog phono tonearm alignment true one point cartridge set up owner s manual SMARTractor acoustical systems ...

Page 2: ...rior to shipment Please do get yourself familiar to the handling and use of the SMARTractor While it is a mechanical positioning instrument it needs a minimum of attention to detail by the user to obtain the maximum precise results it ensures if handled correctly A brief introduction Most important Please study the step by step illustrated instruction to learn how to use and set up the SMARTractor...

Page 3: ...SMARTractor an additional 20 mm of height for the positioning arm in those instance where required for illustration see page 8 The SMARTractor offers a total of 5 different tangential curves with which to align a given cartridge and tonearm combination Selecting the tangential curve You have the option to align the cartridge using any of these five tangential curves UNI DIN 1 Loefgren B DIN 2 Loef...

Page 4: ...very hard time getting the white 20 mm POM ring off your spindle again The 12 mm and or 6 mm spindle adapter insert allows the precise centering of the SMARTractor on a wide range of spindle diameters Remember Please be careful and do not use any excessive force Pushing down realy hard creates a VERY tight lock which you will have big problems loosening up again Measuring P2S 20 mm spindle ring an...

Page 5: ...ing where the exact pivot point is located This is ideal for precise positioning of the locator pin on the pivot point If there is no indication of the tonearm pivot point attempt to locate pin exactly over the tonearm pivot center If unsure of pivot center use the reticule to visually determine tonearm pivot point by finding symmetrical outer lines on the tonearm body Step 6 When the pivot point ...

Page 6: ...e left of the scale just before the half circle end To illustrate the read out procedure here are a few examples of mounting distances for common tonearms One will become accustom quite quickly to this way of reading the scale The Vernier scale is an international standard in industrial precision analog measuring The magnifier Using the glass magnifier greatly increases the visibility of the stylu...

Page 7: ...mounting screws after final position is obtained Step 9 When the stylus is precisely sitting on the single spot use the helping lines to ensure that the cantilever is perpendicular to the SMARTractor surface when viewed from the front Adjust the cartridge accordingly until the cantilever is visually in this position If you have a Uni Pivot design tonearm it is critical that the table is level befo...

Page 8: ... Hofstetten Germany www acoustical systems com info acoustical systems com Step 10 Make sure that the stylus is precisely located on the spot with the helping lines straight with the cantilever making sure that the locator pin is still exactly positioned over the pivot When you are sure that the stylus is precisely located on the spot with the helping lines in line with the cantilever the tangenti...

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