Pro-Ject Audio Systems Speed Box DS User Manual

Page 3

Stand By

Press and hold the button St.By to put the Speed Box DS into stand by. Pressing the button St.By will switch on
the Speed Box DS from stand by.

Switching on and off

Pressing the power switch of your Pro-Ject turntable alternately starts or stops the motor.

Speed selection 33/45 r.p.m.

The belt must be on the smaller (50Hz models) larger (60Hz models) diameter part of the motor pulley.
Press the speed change button 33/45 to switch between 33 and 45 r.p.m.. The selected speed will be
displayed digitally. 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.

Pitch control

Repeatedly pressing the + or - buttons increases or decreases the replay speed in twenty steps of 0,1 r.p.m.
respectively. The adjusted speed is displayed digitally.

Speed Box DS

St.by

33/45

45.0

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. With the 78 r.p.m. pulley the belt must be on
the smaller diameter part of the motor pulley to switch between 33 and 45 r.p.m..

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..

Playing 78 r.p.m. the digital display will still show 45 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.