Pro-Ject Audio Systems RPM 6.1 SB SuperPack User manual

INSTRUCTIONS FOR USE
Pro-Ject RPM 6.1 SB

© Audio Trade GmbH · Pro-Ject RPM 6.1 SB · Revision 20.2.06/1.5.06
2
3a
9a
38mm
37mm
17
21
25
16
17
66a
15
77
8
18
9
21
20
5
4
3
22
2
1
1
14
13
23 2323
24
SPEED
45/78
33
SPEED BOX
45/78
33
Speed
Speed Box
SPEED
45/78
33
SPEED BOX
45/78
33
Speed
Speed Box

© Audio Trade GmbH · Pro-Ject RPM 6.1 SB · Revision 20.2.06/1.5.06
3
PRO-JECT RPM 6.1 SB
Controls, features and connections
1 Motor transportation screw (marked red)
2 Stepped drive pulley
3 Drive belt * 3a Hook
4 Hub *
5 Sandwich platter *
6 Tonearm counterweight * 6a Downforce scale
7 Tonearm lift lever
8/18 Tonearm rest and removable transport lock
9 Tonearm tube 9a Tonearm base
13 Power supply socket
14 Phono output sockets and earth connection
15 Anti-skating weight adjustment scale
16 Anti-skating weight *
17 Anti-skating weight support hoop
20 Power switch
21 Headshell with finger lift *
22 Motor
23 Adjustable feet *
Record weight (not shown) *
Connection cable (not shown) *
Power supply (not shown) *
Dear music lover,
thank you for purchasing a PRO-JECT AUDIO record player.
In order to achieve maximum performance and reliability with this record player you should study these instructions
for use carefully.
!
Warning of a hazard for the user, the unit or possible misuse.
Important notice.
During assembly and adjustment of the deck small parts could be lost if not carefully placed in a suitable
receptacle.
Before starting assembly make yourself acquainted with the parts listed above and correspondingly numbered
in the technical drawings above. Separately packed items are marked with an asterisk *.

© Audio Trade GmbH · Pro-Ject RPM 6.1 SB · Revision 20.2.06/1.5.06
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Set-up
Screw the two feet (23) 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 a spirit level) before placing the turntable on it.
Carefully insert the spindle of the hub (4) into the bearing. Fit the drive belt (3) around the hub (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. Fit the platter over the spindle of the hub.
Level the plinth using a spirit level and the adjustable feet (23). Remove the two red transport screws (1)
which secure the motor (22) during transportation.
Remove the transport lock (18) from the tonearm and the tonearm bearing. Store it together with the two red
motor transport screws (1) in the original packaging so they are available for any future transportation.
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 PRO-JECT RPM 6.1 SB 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.
The finger lift (21) must be fitted on top of the headshell under the cartridge fixing bolts or nuts - not
between headshell and cartridge body.
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 counterweight (6) supplied is suitable for cartridges weighing between 6 - 10g. An alternative counterweight
for cartridges weighing between 10 - 15g is available as an accessory part. Adjust the downforce prior to
installing the anti-skating weight. Adjust the downforce prior to installing the anti-skating weight.
Gently push and turn the counterweight (6) onto the armtube stub. 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.

© Audio Trade GmbH · Pro-Ject RPM 6.1 SB · Revision 20.2.06/1.5.06
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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.
Adjusting the azimut
The cartridge needle must be vertical in the record groove in order to trace the
groove wall modulations correctly.
A small screw at the bearing end of the arm allows incorrect azimuth to be
corrected if your needle is not mounted exactly perpendicular to the cartridge
body (which is often the case).
Slacken off the screw just enough to be able to revolve the arm tube without
applying force. Please note: do not remove the screw completely!
Screw
With the aid of a good magnifying glass adjust the needle until it is vertical in the groove (i.e. perpendicular
to the record's surface). Ideally this should correspond to the top surface of the cartridge body being parallel
to the record surface.
When you are satisfied that the needle is vertical retighten the screw carefully.
Under no circumstances should the arm tube be adjusted with the needle still in the record groove!
Irreparable damage may be caused to the cantilever suspension! The arm must be lifted to make
each adjustment and lowered afterwards to check it.
Anti-skating force adjustment
The anti-skating force must be adjusted according to the mass of the cartridge as
follows:
Downforce Groove in the stub (15)
10 - 15mN 1st from bearing rings
15 - 20mN 2nd " " "
20mN and bigger 3rd " " "
Hang the loop of the thread of the anti-skating weight in the groove of the anti-skating stub (15) corresponding
to the downforce applied to your cartridge and feed the thread through the loop of the wire support (17).
Connection to the amplifier
The PRO-JECT RPM 6.1 SB has gold plated female RCA phono sockets (14) so you can substitute the
interconnect cables supplied with those of your choice for connection to the amplifier if you wish. Your dealer
can advise you on alternative cables. Use the Phono input (sometimes labelled gram, disc or RIAA) on your
amplifier. Make sure that the phono input offers correct matching and amplification for the type of cartridge
used. Line inputs (such as CD, Tuner, Tape or Video) are not suitable.
Take care to connect the left and right channels correctly. The right channel is usually marked red, the left
channel black or white. Check the manual supplied with your amplifier for relevant information. An earthing
wire may be connected to the screw terminal between the sockets if you encounter hum problems when using
the record player.
If your amplifier does not have an input suitable for phono cartridges you will require a separate phono
amplifier stage for MM or MC cartridges such as the PRO-JECT PHONO BOX SE or the PRO-JECT TUBE BOX
which is then connected between the record player and a free line level input of the amplifier. For further
information see the last page.

© Audio Trade GmbH · Pro-Ject RPM 6.1 SB · Revision 20.2.06/1.5.06
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Mains power connection
The turntable is supplied with a power supply suitable for your country's mains supply. Check the label before
connecting to ensure compliance with the mains rating in your house.
Connect the low voltage plug from the power supply to the socket (13) on the rear of the record player
before connecting the power supply to the mains.
Switching on and off
Pressing the power switch (20) alternately starts or stops the motor.
Changing replay speed
SPEED
45/78
33
SPEED BOX
45/78
33
Speed
Speed Box
Press the speed change button (24) to switch between 33 and 45 r.p.m.. The selected speed is shown
respectively by the lit green LED (33 r.p.m.) or red LED (45 r.p.m.).
To replay records at 78 r.p.m. perform the following steps: Remove the platter (5) and using the tool (3a)
from the accessory kit. Fit the belt (3) around the larger diameter step of the pulley (2). 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..
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.
Maintenance and cleaning
Your record player requires little or no regular maintenance. Remove dust with a slightly moistened antistatic
cloth. Never use a dry cloth because this will create static electricity which attract more dust! Antistatic
cleaning fluids are available at specialist stores but must be applied sparingly to avoid damage to rubber
parts. It is recommended to fit the needle cover before cleaning or maintenance is carried out to avoid damage.
If the player is not used over a long period of time the drive belt can be removed to prevent unequal stretching.
!
Always disconnect the record player from the mains power supply as a precaution before maintenance!
Useful tips
The record player should be positioned on a low-resonance surface such as wood or multiple layer ply board
to avoid structural vibrations disturbing replay.
Technical specifications PRO-JECT RPM 6.1 SB
* Electronic speed change * 33,33/* 45,11 and 78 r.p.m.
Speed variance ±0,5 %
Wow and flutter ±0,08 %
Signal to noise -70dB
Downforce range 10 - 30mN
Effective tonearm length 9 " (230mm)
Overhang 18mm
Power consumption 6W
Outboard power supply 16V/500mA AC, suitable for your country's mains supply
Dimensions (W x H x D) 385 x 170 x 330mm
Weight 8kg

© Audio Trade GmbH · Pro-Ject RPM 6.1 SB · Revision 20.2.06/1.5.06
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Potential incorrect use and fault conditions
PRO-JECT turntables are manufactured to the highest standards and undergo strict quality controls before
leaving the factory. Faults that may possibly occur are not necessarily due to material or production faults but
can sometimes be caused by incorrect use or unfortunate circumstances. Therefore the following list of common
fault symptoms is included.
The platter doesn't turn although the unit is switched on:
The unit is not connected to the mains power supply.
No mains at the socket.
Drive belt is not fitted or has slipped off.
No signal through one or other channel or both channels:
No signal contact from the cartridge to the internal tonearm wiring or from that to the arm lead or
from that to the phono box or between that and the amplifier. This could be due to a faulty plug,
broken wire or solder joint or simply loose plug/socket connection.
Phono input not selected at amplifier.
Amplifier not switched on.
Amplifier or speakers defective or muted.
No connection to the loudspeakers.
Strong hum on phono input:
No earth connection from cartridge or arm or arm cable to amplifier, or earth loop.
Distorted or inconsistent sound from one or both channels:
Record player is connected to wrong input of amplifier, or MM/MC switch incorrectly set.
Needle or cantilever damaged.
Wrong r.p.m., drive belt overstretched or dirty, platter bearing without oil, dirty or damaged.
Service
Should you encounter a problem which you are not able to alleviate or identify despite the above information,
please contact your dealer for further advice. Only when the problem cannot be resolved there should the
unit be sent to the responsible distributor in your country.
Never return a record player without making sure that is it safely disassembled and correctly packaged in the
original packaging according to the diagrams on page 8 of this booklet. Guarantee repairs will only be effected
if the unit is returned correctly packaged. For this reason we recommend keeping the original packaging.
Please remove these parts and pack them separately: counterweight (6), anti-skating weight (16) platter (5),
cartridge, belt (3). Insert the transport screws for the motor (1), the transport lock for the tonearm (18) and the
tonearm bearing prior to carefully packaging the record player.
Warranty
The manufacturer accepts no responsibility for damage caused by not adhering to these instructions
for use and/or by transportation without the original packaging. Modification or change to any part
of the product by unauthorized persons release the manufacturer from any liability over and above
the lawful rights of the customer.
PRO-JECT is a Registered Trademark of H. Lichtenegger.
This guide was produced by: Audio Trade GmbH
Copyright © 2005. All rights reserved.
The information was correct at the time of going to
press. The manufacturer reserves the right to make
changes to the technical specification without prior
notice as deemed necessary to uphold the ongoing
process of technical development.

© Audio Trade GmbH · Pro-Ject RPM 6.1 SB · Revision 20.2.06/1.5.06
8
Record weight
Counterweight
Hub
Accessories
2 motor transport screws
(marked red)
Tonearm
transport lock
Platter
Please
remove feet
bevore repacking
!
Power supply

Phono pre-amplifier Phono Box II
 Amplification and RIAA equalisation for MM and MC cartridges
 Dual-Mono circuitry for improved channel separation
Available in silver or black finish
Phono pre-amplifier Phono Box SE
 Amplification and RIAA equalisation for MM and MC cartridges
 Selectable impedance for MC cartridges
 Subsonic filter
 Dual-Mono circuitry for improved channel separation
Tube phono pre-amplifier Tube Box II
 Amplification and RIAA equalisation for MM and MC cartridges
 Subsonic filter
 Dual-Mono circuitry utilising two double triodes for improved
channel separation
Available in silver or black finish
Tube phono pre-amplifier Tube Box
 Amplification and RIAA equalisation for MM and MC cartridges
 Selectable impedance for MC cartridges
 Subsonic filter
 Dual-Mono circuitry utilising two double triodes for improved
channel separation
Produktübersicht
Manufacturer reserves the right to change specification without notice. ·© Audio Trade GmbH.
For detailed product information please refer to the Pro-Ject full catalogue or the web site www.project-audio.com.