Pro-Ject Audio Systems Pro-Ject RPM 9.1 SuperPack 1 Instructions For Use Manual Download Page 4

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Set-up

Screw the three feet (22) onto the threaded bolts located on the underside of the plinth. Make sure the
surface you wish to use the turntable on is level (use the supplied spirit level) before placing the turntable on it.
Carefully insert the spindle into the bearing. Put the record weight on the platter and level the plinth using the
supplied spirit level and the adjustable feet (23).
Assemble motor and motor base. Place the motor unit to the left of the turntable. Position the motor unit with

the aid of the supplied template. Fit the drive belt (3) around the platter (5) 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.
Remove the transport lock (18) from the tonearm. Store it in the original packaging so they are available for

any future transportation.

Cartridge downforce adjustment

Counterweigts supplied: SuperPack 1 with Ortofon Rondo Red - for cartridges weighing between 8 - 11g.
SuperPack 2 with Sumiko Blue Point No. 2 - for cartridges weighing between 6 - 10g.

Counterweigts optional: SuperPack 1 with Ortofon Rondo Red - for cartridges weighing between 11 - 15g,
6 - 10g or 5 - 8g. SuperPack 2 Sumiko Blue Point No. 2 - for cartridges weighing between 11 - 15g, 8 - 11g
or 5 - 8g. Adjust the downforce prior to installing the anti-skating weight.
Pushing carefully, turn the counterweight (6) onto the rear end of the tonearm tube (9), and 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. Carefully rotate the counterweight (6) until the armtube balances out.
The arm should return to the balanced position if it is moved up or down. This adjustment must be done
carefully. Do not forget to remove the cartridge protection cap if fitted.
Once the arm is correctly balanced 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 line with the anti-skating prong (15). 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.

The recommended downforce for the Ortofon Rondo Red cartridge is

23mN

The recommended downforce for the Sumiko Blue Point No. 2 cartridge is

18mN

Adjusting the vertical tracking angle (vta)

** Put a record and the record weight on the platter. When the needle is lowered into the record groove and the
tonearm is not resting on the lift arm, the tube of the tonearm should be parallel to the surface of the record.
If it is not loosen both allen screws in the tonearm base just enough to allow vertical movement of the arm
pillar without force and slide the arm up or down until it is parallel.
Carefully retighten the allen screws without applying excessive force (which would deform the arm pillar) –
finger tight is quite sufficient.