Fitting And Connecting The Cartridge; Cartridge Downforce Adjustment - Pro-Ject Audio Systems Xtensions 9 S-Shape Instructions For Use Manual

Fit the drive belt (3) around the platter (4) and the smaller diameter part of the motor pulley (2).
Avoid getting sweat or grease on the belt as these will deteriorate the performance and reduce the belt's
lifespan. Use absorbent kitchen paper to remove any oil or grease from the outer edge of the hub and
the belt.
Put the pulley cover on its rests.
Please note: We recommend to use the record player without a mat on the platter.

Fitting and connecting the cartridge

All cartridges with half inch mounting holes can be fitted. Leaving the needle's protection cover on, fit
the cartridge to the headshell using the screws supplied with the cartridge by passing one screw
through each slot in the headshell (21). Do not tighten the nuts yet.
Connect the tonearm wires to the cartridge pins as follows:
white left channel positive (L+)
red right channel pos. (R+)
green right channel return (R -)
blue left channel return (L -)
The full sound quality of the record player can only be achieved if the cartridge is correctly adjusted.
Particular tools like the Pro-Ject alignment tool are required to accomplish this job properly.
If you are not well acquainted with the adjustment of cartridges you are advised to call upon the willing
help of your Pro-Ject dealer to accomplish this task for you.
Please note: Adjusting a cartridge and tonearm calls for the greatest care in order to avoid
damaging the cartridge or tonearm bearings. Leave this work to your dealer if you are in any
way unsure of the necessary steps and precautions to be taken.

Cartridge downforce adjustment

The supplied counterweight (6) is suitable for cartridges weighing between 3 - 9g (no. 180). Alternative
counterweight (no. 181) for cartridges weighing between 7 - 16g is available as accessory parts. Adjust
the downforce before installing the anti-skating weight.
Following adjustments have to be done very carefully. Remove cartridge protection cap. Push and turn
the counterweight (6) carefully on the rear end of the tonearm tube (9), so that the downforce scale
(6a) shows towards the front of the player. Lower the armlift and position the cartridge in the space
between arm rest and platter. Rotate the counterweight (6) until the arm tube is balanced. The arm
should return to the balanced position if it is moved up or down.
Once the arm is balanced correctly return it to the rest. Hold the counterweight (6) without moving it
and gently revolve the downforce scale ring (6a) until the zero is in vertical position. Check whether the
arm still balances out.
Rotate the counterweight counter clockwise (seen from the front) to adjust the downforce according
to the cartridge manufacturer's recommendations. One mark on the scale represents 1 mN (= 0,1g /
0,1 Pond) of downforce.
© Pro-Ject Audio Systems · Pro-Ject
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tension 9 S-Shape · Revision 2017.12.20
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