Pro-Ject Audio Systems Speed Box S User Manual

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To switch on from standby or to standby

The push button on the left hand side will toggle the Speed Box between its fully operational status and
standby. The blue LED above the stand-by push button shows that the unit is switched on.

Speed selection 33/45 r.p.m.

Speed Box S

The belt must be on the smaller (50Hz models) larger (60Hz models) diameter part of the motor pulley. Press
the button 33 45 to switch between 33 and 45 r.p.m.. The selected speed is shown respectively by the lit LED.
To play at 45 or ** 78 r.p.m. please always start the turntable at 33 r.p.m. and then switch to the higher speed

when it has attained full speed.

Replay at 78 r.p.m.

** In order to replay shellac records at 78 r.p.m. your turntable must be equipped with the 78 r.p.m. pulley
which is available as an optional accessory for most models.
After fitting the 78 r.p.m. pulley please proceed as follows: Remove the platter and using the tool from the
accessory kit fit the belt around the larger diameter step of the pulley. Replace the Platter, start the turntable

at 33 r.p.m. and switch the speed to 45 r.p.m., the platter will then revolve at 78 r.p.m..

Fitting the 78 r.p.m. pulley

Before beginning work fit the cartridge’s needle protection cover.
Remove the platter and drive belt. Please remember that sweat or sticky fingers will impair the function of the
belt. Use a piece of kitchen paper or a cloth to remove the belt.
Measure the height of the pulley above the plinth in order to ease correct refitting.

Using a small screwdriver loosen the grub screw in the neck of the pulley just enough to remove the pulley
vertically without using force. Refit the pulley in the opposite order. Tighten the grub screw carefully making
sure you do not overtighten it.
Fit the drive belt around the subplatter and the pulley. Again, use a piece of paper or cloth to avoid soiling
the belt. Replace the platter.

** 78 r.p.m. is not available with all Juke Box, Elemental, Essential and Debut Carbon models, all
Phono and Phono/USB models, all models with Automatic switch-off (like Debut III E),

perience Basic+,

perience Comfort, 2

perience Acryl, 2

perience Classic, 2

perience SuperPack, 6 Perspe

6 Perspe

SuperPack, RPM 1.3 Genie, RPM 9.1, RPM 9.1 SuperPack, RPM 9.1 Acryl, RPM 9.2

Evolution, RPM 10.1 Evolution and Signature.

The models Debut III/Phono SB, 1

pression III Comfort, RPM 5 SuperPack, RPM 5.1 SuperPack,

RPM 6.1 SB, RPM 6.1 SB SuperPack and

tension are equipped with the 78 r.p.m. pulley as a standard.