Revox STUDIOMASTER T700 User manual

User Manual
STUDIOMASTER
T700 Turntable
V1.2

Introduction ........................................................................................................................................................1
Unpacking ................................................................................................................................................................................. 1
Scope of delivery.......................................................................................................................................................................1
Foreword ............................................................................................................................................................2
Analogue music experience ................................................................................................................................................... 2
Integrated phono preamplifier .............................................................................................................................................. 2
Electronic speed control ........................................................................................................................................................ 2
Note on wearing parts ........................................................................................................................................................... 2
Assembly and installation ....................................................................................................................................3
Assembly step 1: Checking the DIP switches.......................................................................................................................... 3
Assembly step 2: Placing sub-platter and platter................................................................................................................... 4
Assembly step 3: Fitting the drive belt................................................................................................................................... 4
Assembly step 4: Mounting the tonearm weight on the tonearm.......................................................................................... 5
Assembly step 5: Setting the tracking force with the digital scale.......................................................................................... 5
Assembly step 6: Attaching the anti-skating weight .............................................................................................................. 6
Assembly Step 7: Connecting T700 turntable......................................................................................................................... 6
Operation............................................................................................................................................................7
Testing after assembly........................................................................................................................................................... 7
Playing a record..................................................................................................................................................................... 7
Cleaning the record ............................................................................................................................................................... 8
Starting playback. .................................................................................................................................................................. 8
Stopping playback ................................................................................................................................................................. 8
Basic settings and maintenance ...........................................................................................................................9
Liability.................................................................................................................................................................................. 9
Phono preamplifier ............................................................................................................................................................... 9
Terminating resistor (MC Loading) ...........................................................................................................................................9
Sensitivity (MC Sensitivity)...................................................................................................................................................... 10
Target speed setting ............................................................................................................................................................ 10
Calibration of target speed .................................................................................................................................................. 10
Replacing the pick-up .......................................................................................................................................................... 11
Adjusting the height of the tonearm ................................................................................................................................... 11
Setting the azimuth of the stylus ......................................................................................................................................... 11
Tonearm scale ..................................................................................................................................................................... 12
Accessories .......................................................................................................................................................................... 12
Technical Data T700...........................................................................................................................................13
MC Phono Preamp............................................................................................................................................................... 13
Tonearm Pick-up.......................................................................................................................................................... 13
Drive.................................................................................................................................................................................... 13

STUDIOMASTER T700 Turntable
1
Introduction
Congratulations on purchasing your new STUDIOMASTER T700 turntable and thank you for the trust you have placed in us
through the acquisition of this high-quality product.
Before putting your Revox turntable into operation, you should follow the details in these operating instructions so that the
sound quality can reach its full potential.
General safety information, disposal of your old device and guarantee provisions can be found in the enclosed leaflet.
Note the signs on the device or its external power supply unit:
To prevent the risk of electric shock, no covers may be removed. Maintenance and repairs may only be carried out by qualified
specialists!
Unpacking
We recommend that you keep the packaging material for possible future transport.
Please examine the STUDIOMASTER T700 turntable and the accessories for completeness and transport damage after
unpacking. Before using the device, please read the operating instructions carefully. Keep them as a reference.
A device which shows signs of mechanical damage or into which liquid has penetrated, may not be connected to the mains.
Scope of delivery
• Chassis STUDIOMASTER T700 turntable with pre-assembled tonearm
• MC cartridge Ortofon Quintet Bronze (pre-assembled and aligned)
• Sub-platter incl. bearing
• Platter
• Acrylic dust cover
• External power supply 12 - 15 VDC / minimum 1A
• Cotton gloves
• Accessory box with anti-skating weight, tonearm counterweight, belt
• Digital tonearm scale *
• Carbon plate brush *
• Circular level *
• Adjusting tool Allen key SW1.5*, SW 2.0 *, SW 3.0 *
• Leaflet for safety instructions and guarantee conditions
• Printed operating instructions for the T700 Turntable
• Welcome letter
• Guarantee card
* Included in the accessory box
Please keep the packaging in case the device has to be packed for transport.

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STUDIOMASTER T700 Turntable
Foreword
Analogue music experience
The STUDIOMASTER T700 turntable is a high-end turntable with innovative technologies. It is made exclusively from materials
of the highest quality in Germany and distinguishes itself through its clear, elegant and timeless design. It is top of its class and
provides music lovers with an impressive, audiophile music experience. Thanks to the built-in phono preamplifier, the T700 is
compatible with all Revox products - such as Joy S119, Joy S120, and also the M series as well as with products from the past
(Evolution, Emotion, Exception, B series) and can be easily integrated into a Revox Multiroom and Multiuser System. It is also
compatible with other conventional audio products.
Integrated phono preamplifier
A special highlight of the STUDIOMASTER T700 is the unique, integrated MC phono preamplifier. The integration of the
preamplifier enables the best and shortest connection between the pick-up and preamplifier and thus leads to the highest
signal quality while preventing interference. For this purpose, the tonearm strand, for instance, is tightly twisted and directly
soldered to the input of the preamplifier. In addition, there is a galvanically separated power supply for the phono preamplifier
and the motor control, which prevents mutual, negative interference.
Electronic speed control
To ensure the best sound quality, absolute speed accuracy is essential. For this purpose, the T700 has a high-precision, quartz-
accurate PLL speed control via a contactless optical sensor. It corrects the deviations (e.g. caused by ambient / temperature
fluctuations, aging of belts and bearings, friction during the scanning process) and ensures compliance with the absolute target
speed with a tolerance of 0.1%. In addition, the belt drive in, conjunction with a high plate mass and an optimally designed plate
bearing, already leads to almost perfect synchronization. The soft start for slow motor start-up guarantees reduced belt wear.
Note on wearing parts
The mechanical and electrical design of the T700 turntable is aimed at providing several years of use and enjoyment of music.
Owing to the principle, however, there are two components, namely the pick-up system including the needle and the drive belt,
which are subject to a certain amount of wear and tear or aging and should be replaced if necessary. Revox recommends
replacing these two components either after 500-800 hours of operation or 4-5 years, whichever comes first.

STUDIOMASTER T700 Turntable
3
Assembly and installation
The STUDIOMASTER T700 turntable is a mechanical precision instrument and is therefore dismantled before transport so that
the turntable bearings and tonearm bearings are not damaged during transport. Before dismantling, each T700 turntable is
completely assembled, the shaft and bearings are aligned with one another and a complete final test is carried out. Acoustic
monitoring of the T700 in a hi-fi chain concludes the test.
Note on turntable storage:
Should you, as a dealer or customer, set up several T700 turntables at the same time, the turntable bearings of the individual
package units may not be interchanged. After the turntable bearings have been leveled in the factory, the bushing and axis
match and form a mechanical unit.
Note on gloves
When you open the inner box of the T700 Turntable, you will find a pair of cotton gloves. These are included so that
the T700 can be assembled without leaving fingerprints or scuff marks. It is particularly important to use cotton gloves
when fitting the drive belt. Under no circumstances should it come into contact with grease or oil, otherwise adhesion
to the pulley is no longer sufficient and the rubber belt ages prematurely. Should the belt come into contact with
grease / oil, it can be cleaned with alcohol / isopropanol. Only insert it again when the belt is completely dry.
Note on temperature
Before starting with the assembly, the turntable and all of its components should have reached room temperature. This
is particularly important for assembling the turntable bearing, since low temperatures lead to different expansion or
contraction of the bushing and axle and the correct fit may not be given.
Assembly step 1: Checking the DIP switches
Prior to installation, unless you want to install a different pick-up, you should check the DIP switch position of the integrated
phono preamplifier on the underside of the chassis. This is set to factory-assembled Ortofon Quintet Bronze MC system with a
terminating resistor of 100 Ωand a gain for 300 µV (0.3mV) output voltage. A detailed description of the integrated phono
preamplifier can be found in the chapter Phono preamplifier.
Fig: Factory setting phono preamplifier for Ortofon Quintet Bronze

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STUDIOMASTER T700 Turntable
Assembly step 2: Placing sub-platter and platter
In the next step, first remove the plastic cover plug from the platter bearing. Make sure that no sharp-edged objects are used
that could damage the soft sintered bronze bearing bush. The plug should be kept in the accessories box for future transport.
Attention: There is a loose, polished steel ball in the bearing bush that can fall out if you now turn the chassis through 180°!
The aluminum sub-platter and the POM platter are provided as a unit in the packaging. Release the sub-platter from the platter
by applying slight pressure onto the steel axle. As a precaution, this should be done above a soft cushion so that the sub-platter
cannot be damaged if it falls. After loosening, the sub-platter with the steel axle can be inserted into the socket . Due to
the tight fit, the sub-platter or the axle slides very slowly into the bearing. The axle has already been treated with a special oil in
the factory before the running-in phase and does not require any further action - not even after years of operation. Now place
the black platter onto the sub-platter .
Assembly step 3: Fitting the drive belt
You should wear the enclosed gloves to attach the drive belt, so that no grease / oil can get onto the belt. The easiest
way to do this is to first place the belt around the large platter with two hands and then encircle the pulley (drive
shaft motor) by means of a slight pull. For an even application of the belt, turn the platter a few revolutions by hand
until the belt is in the middle of the pulley.

STUDIOMASTER T700 Turntable
5
Assembly step 4: Mounting the tonearm weight on the tonearm
For assembly of the counterweight it is advisable not to loosen the transport lock, which is attached to the tonearm holder
.
Take the tonearm weight from the accessories box and place it evenly onto the thread of the tonearm. You can now “screw”the
tonearm weight by turning it clockwise by applying slight pressure. The tonearm weight does not have an internal thread, but
two inserted silicone rings that contribute to decoupling from the tonearm. A little pressure is therefore necessary until the first
silicone ring "grips" the external thread of the tonearm.
Turn the tonearm weight until there is approx. 26 mm distance between the tonearm weight and the tonearm bearing, see
figure below. This distance approximately corresponds to a bearing weight of 23 mN (2.3g) when the Ortofon Quintet Bronze
pick-up is mounted. This is also the recommended tracking force for this system. A precise adjustment is carried out in a second
step using the digital tonearm scale included in the scope of delivery.
Now remove the transport lock on the tonearm mount .
Fig.: Tonearm bearing with tonearm weight and anti-skating weight
Assembly step 5: Setting the tracking force with the digital scale
In the penultimate step, the recommended tracking force is precisely set with the help of the digital tonearm scale. For the pre-
assembled Ortofon Quintet Bronze pick-up system, the tracking force should be 23 mN, which corresponds to approximately
2.3g at an altitude of 0-2000 m. For the measurement, pull the protective cover horizontally off the tonearm scale and place the
scale on the turntable (without record and without anti-skating weight).
Now the needle guard of the pick-up is removed. Switch the balance on with the button and lower the needle directly onto the
center (marked point) of the balance using the tonearm lift. By means of the displayed value, you can now decide whether the
tonearm weight has to be screwed closer to the tonearm bearing (value is less than 2.3g) or whether the tonearm weight has to
be turned outwards (value is greater than 2.3g).
The tracking force of 2.3g recommended by Ortofon should serve as a reference value and may be adjusted within a range of ±
0.2 g according to your own preferences. The possible range provided for the tracking force of the Quintet Bronze System by
Ortofon itself is 2.1 - 2.5 g.
A detailed description of the Revox tonearm scale can be found in the Tonearm scale chapter on page 12
Fig.: Remove protective cover from tonearm scale Fig.: Tonearm scale open installation

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STUDIOMASTER T700 Turntable
Assembly step 6: Attaching the anti-skating weight
As an anti-skating device, the T700 has a weight that generates a counterforce via a small pin on the tonearm bearing.
This small weight is located in the accessories box and is attached to the pen with a small thread via a deflection unit. For the
5.0 g anti-skating weight (diameter 9 mm) is recommended to use the middle groove in the pin. If you have the smaller 1.8 g
anti-skating weight (diameter 6 mm), the outer groove is recommended.
Note: The determination of the tracking force (assembly step 5) must always be carried out without the anti-skating weight,
as otherwise measurement errors may occur. With the help of the tonearm scales you can easily determine the weight
of your anti-skating weight.
Assembly Step 7: Connecting T700 turntable
In the last step, connect the T700 turntable to the power supply and the hi-fi amplifier.
Power supply:
On the back of the T700 turntable is the input socket for the external power supply, which is included in the scope of delivery.
Insert the barrel connector into the socket labeled DC Power. Only the power supply unit supplied by Revox may be used.
Third-party power supplies can cause damage and malfunctions that are not covered by the warranty.
Technical data power supply unit: input 100-240 VAC / 50-60 Hz
output 12 - 15 VDC / minimum 1A
Audio connection:
The T700 has a very high quality MC phono amplifier, which is preconfigured for the Ortofon Quintet Bronze pick-up system in
the factory. At the output of the cinch sockets Analog Line Output, the T700 outputs a stereo audio signal at line level. This
means that the T700 can be connected directly to any analog input of an amplifier, receiver or an Audiobar from Revox without
the need for a separate phono preamplifier. These inputs are usually identified with the names Line-IN, Analog Input, Aux, CD,
Tuner, Tape.
Note: The T700 must not be connected to an MC or MM input of an amplifier!
A separate ground line, as is usual with turntables without an integrated phono preamplifier, is not necessary with the
STUDIOMASTER T700. Thanks to the amplified signal at line level, the risk of interference is no longer as critical as with
turntables without a preamplifier. However, for audiophile reasons, Revox recommends using a high quality, well-shielded cinch
cable. Specialist stores or retailers can provide good advice on this matter.

STUDIOMASTER T700 Turntable
7
Operation
Testing after assembly
Before you put on the first record, you should carry out a test after assembling the T700. Connect the T700 to the mains; the
STOP button on the glass surface lights up in red. The tonearm is in its holder and the needle guard underneath the cartridge
has been removed.
Now start the turntable at the low speed by touching the button on the surface. Immediately the turntable begins to turn. As
long as the target speed of 33 ⅓ revolutions per minute has not yet been reached, the lighting under the button pulsates.
Once the target speed is reached, the button lights up continuously.
For the sake of clarity, the button is only labeled with the number 33, but the speed is of course regulated to precisely 33 ⅓.
In the next step, the higher speed of 45 revolutions per minute can be tested by touching the button . Here too, the lighting
under the button pulsates until the target speed is reached.
In both cases, the target speed should be reached after 3-6 seconds. If the time is longer, the speed control should be
calibrated. This is done on the back of the T700 using the two adjusting screws of the spindle trimmer next to the power supply.
You will find a detailed explanation of this in the chapter on target speed setting on page 10.
Fig. 1: Touch field with start / stop buttons Fig. 2: Circular level
Finally, the horizontal level of the installation location for the T700 can be checked with the aid of the circular level included in
the scope of delivery. The circular level (Fig. 2) is located in the accessories box and is simply placed on the surface that is to be
tested. The air bubble should remain within range of the 1 ° mark.
Playing a record
After this test, you can now put on a record. Please note the specified speed for which the record was pressed. As a rule, long-
playing records with a diameter of 30 cm require a speed of 33 ⅓ revolutions per minute, the smaller single records, with a
diameter of 7 inches (17.5 cm), require a speed of 45 revolutions per minute. The speed is often also referred to as the playback
speed. For some small 7 inch records you need a single adapter / puck (not included) that reduces the large inner diameter of a
single from 38.1 mm to 7 mm on the regular mandrel in the middle of the turntable. Alternatively, you also get plastic clips that
are clipped in and remain permanently attached to the single.
A single adapter can be safely stored in the accessory box in the compartment of the circular level.
An incorrectly selected speed does not cause any damage, neither to the needle nor to the recorder, it is only manifested
in a wrong pitch; keyword "Mickey Mouse effect"
Note on the turntable platter
The turntable of the T700 is made of POM, a type of plastic which has a very low resonance and can be specifically used without
the turntable support. If you are still a fan of turntable support, you can of course use one. For this you should note that the
height setting of the tonearm may then have to be adjusted to the higher position of the record.
How this is done is described in the chapter Adjusting the tone arm height on page 11.

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STUDIOMASTER T700 Turntable
Cleaning the record
Before starting playback, the record should first be cleaned with the turntable brush. Dust on the record leads to crackling
noises during playback and can settle on the sensitive needle.
A turntable brush with carbon fibers is included with the T700 and is located in the accessories box. Place the brush vertically on
the rotating record, the brush pointing towards the center of the record, similar to the second hand on a clock. The brush
remains on the record for a few seconds and is then slowly pulled outwards. If necessary, repeat this process until no more dust
particles are visible on the record.
To clean the brush, the carbon fiber comb is simply swiveled over the bar in the brush
frame. Compressed air from the can (photo accessories) helps with thorough cleaning
of the brush.
Attention: Please do not use compressor air, it contains fine oil components.
The carbon fibers should not be touched, in order to prevent a greasy film
that causes them to stick to each other.
Starting playback.
If the record is rotating at the correct speed, check whether the tonearm lift is in the
upper position. To do this, swivel the lift lever from the lower position (Fig. left) to
the upper position. The lift slides up to just below the tonearm. Now you grasp the
system carrier (also known as the headshell) and pull the tonearm out of the tonearm
holder to the left, over the lead-in groove of the record. The lead-in groove is on
the outside diameter. With the lift lever you lower the tonearm and the music
begins to play.
Stopping playback
The T700 does not have an automatic limit switch. When the record is finished, the
needle remains in the groove and the record player continues to turn until the stop
button is pressed. When the turntable is at rest, you raise the tonearm again with
the lift lever and then manually guide it back into the tonearm holder . The tonearm
lift may remain in the upper position, because if it is correctly adjusted, it does not
exert any pressure on the tonearm when it is in the holder.
Caution
If there is no record playback, the tonearm should always be "parked" in its holder.
A needle that remains in the groove for days or weeks can damage the needle bearing and thus reduce the tracking
ability.
The lead-out groove is near the center of the record