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USER MANUAL TEP 302 THORENS
© 2006 Thorens Export Company Ltd, all rights reserved.
Under the copyright laws, this manual may not be copied, in whole or in part, without the consent of Thorens.
The Thorens logo is a trademark of Thorens Holding Ltd. Use for commercial purposes without the prior consent of Thorens may constitute trademark infringement.
Thorens is not responsible for printing or clerical errors.
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Line drawing of a rectangular electronic device labeled 'THORENS' with a circular button on the left (no additional text or symbols)English
Congratulations on purchasing your Thorens TEP 302!
The TEP 302 amplifies signals from a turntable to meet the require - ments of the “line level” input of any power amplifier. At the same time it performs a RIAA equalization to provide you with the highest music quality available.
The whole product is “Made in Germany”, which guarantees highest sonic quality combined with a long lifespan.
We understand that you would like to start listening at once, yet you should take a few minutes and carefully read this manual first. It contains important information that will help you to avoid damages and to ensure proper wiring with the rest of your system. However, if you still have questions of any kind, please feel free to contact us.
Contents
Safety instructions.... 5
Unpacking and installation....6
Connecting the TEP 302....7
Configuring the TEP 302....9
Operation....12
Maintenance.... 13
Specifications....14
Customer support....15
Safety instructions
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CE This product was tested and complies with all the require - ments for the CE Mark.CAUTION
To reduce risk of electric shock, do not remove the cover (or back). No user-serviceable parts inside.
WARNING
TO PREVENT FIRE OR SHOCK HAZARD, DO NOT EXPOSE THIS APPLIANCE TO RAIN OR MOISTURE.
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Two triangular warning symbols: a lightning bolt symbol and an exclamation mark symbol.EXPLANATION OF GRAPHICAL SYMBOLS
The lightning flash with arrowhead symbol, within an equilateral triangle, is intended to alert you to the presence of uninsulated ‘dangerous voltage’ within the product’s enclosure that may be of sufficient magnitude to constitute an electric shock to persons.
The exclamation point within an equilateral triangle is intended to alert you to the presence of important operating and maintenance (servicing) instructions in the literature accompanying the appliance.
FOR YOUR SAFETY:
Units shipped to the U.S.A. and Canada are designed to operate on 115-120V AC only. Safety precaution with use of a polarized AC plug. However, some products may be supplied with a non-polarized plug.
CAUTION: TO PREVENT ELECTRIC SHOCK, DO NOT USE THIS (POLARIZED) PLUG WITH AN EXTENSION CORD RECEPTABLE OR OTHER OUTLET UNLESS THE BLADES CAN BE FULLY INSERTED TO PREVENT BLADE EXPOSURE.
IMPORTANT: DISPOSAL OF WASTE EQUIPMENT BY USERS IN PRIVATE HOUSEHOLDS IN THE EUROPEAN UNION
This symbol on the product or on its packaging indicates that this product must not be disposed off with your other household waste. Instead, it is your responsibility to dispose of your waste equipment by handing it over to a designated collection point for the recycling of waste electrical and electronic equipment. The separate collection and recycling of your waste equipment at the time of disposal will help to conserve natural resources and ensure that it is recycled in a manner that protects human health and the environment. For more information about where you can drop off your waste equipment for recycling, please contact your local city office, your household waste disposal service or the shop where you purchased the product.
Unpacking and installation
Unpack the TEP 302 and place it on a level surface in proximity of the turntables. We suggest that you save the cardboard and packing materials for later use.
Please make sure that the following items were delivered with your TEP 302 before you proceed:
Scope of supply:
1 x Thorens TEP 302
1 x Power supply unit
1 x Power cord
1 x RCA interconnect
Never expose the unit to either of the following conditions:
Locations near air ducts, radiators or other sources of heat or direct exposure to sunlight
Extremely cold locations
Locations subject to extensive dust, moisture, mechanical vibration, shock or poor ventilation
Connecting the TEP 302
● Rear panel connectors
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THORENS 1 2 4 5 3 0 0Power Supply ⑤
Connect the included power cord with the 3-pin AC socket of the power supply unit with an AC outlet that meets the power supply conditions (see Specifications for more information). Connect the power supply unit with the power connector ⑤ of the TEP 302.
Please make sure that the unit is switched off before you proceed! (To turn it off press the Power button on the front panel).
Do not pull out the power cord when the amplifier is switched on. The unit might be damaged.
Required line voltage for the power supply unit
U.S.A. and Canada....115-120 V
Europe, Australia and Asia....220-240 V
Japan....100 V
Power consumption
See Specifications or type plate at the rear of the unit.
Connecting the TEP 302
Audio input ②
Connect the TEP 302 input ② with the output sockets of your turntable (use the turntable's RCA cable).
Audio output ③
Use the included RCA cable to connect the TEP 302 output ③ with a "line level" input (e.g. CD, Aux, DVD, Tuner...) of your amplifier or preamplifier.
Never connect the TEP 302 with the phono input of your amplifier! High distortion and an extremely high input level may cause damage to your amplifier.
When connecting the RCA cables, always make sure you don't mix up the channels!
Grounding ①
Please check if the TEP 302 needs to be grounded: Turn the volume knob of your amplifier to zero (silent) and switch it off. Now turn on the TEP 302 and afterwards your amplifier. If you hear a humming noise from the speakers, turn off the amplifier and connect the ground socket ① of the TEP 302 with the ground cable of your turntable (This step is not necessary for Thorens turntables).
If you still hear the humming noises, they are probably caused by power cords or DVD/CD cables. Try to place the TEP 302 as far away as possible from possible sources of interference and remember: Distance is the best protection against disturbance.
If your sound system stays silent, put on a record and slowly increase the volume on your amplifier.
Note: When the needle touches the record you may hear some cracking noises.
Configuring the TEP 302
Configuration for use with MM- and MC-pickup-systems
There are two different kinds of pickup systems on the market, the so called MM (Moving Magnet) and MC (Moving Coil) systems. Having a MM system, a magnet attached to the pickup system moves inside a coil and a voltage proportional to the vibration amplitude is induced. On the other hand, when you have a MC system the coil is wrapped around the needle and the magnets are arranged around the coil. As the coils used in MM systems have to be rather small to save weight, a higher output voltage is needed. While MM systems usually deploy a voltage of several mVolts, most MC systems only use 100 V. Now adays you often find mixed types as well, they are called high-output MC systems and have a voltage of up to 2.5 mV.
Due to the better sampling resolution today most high quality turntables make use of the MC system. However, there are still some very sophisticated MM systems available.
The TEP 302 was designed to handle both systems without any loss in quality. To handle the differences between them (MC: higher amplification, adjusted by resistors MM: adjusted by capacitors) there are four adjustment units on the bottom of the appliance (two for each channel – on the left: left channel, on the right: right channel):
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ON 1 2 ON 1 2 ON 1 2 3 4 5 6 ON 1 2 3 4 5 6 ON 1 2 3 4 5 6 ⑥ ⑦Configuring the TEP 302
The following steps don't have to be repeated until you change your pickup system.
Keep in mind to set both channels to the same value!
Begin with setting the adjustment units ⑥ to either MC or MM, depending on the pickup system you use (MM is recommended for high-output MC systems).
Both switches On: MC
Both switches Off: MM
Now you can conduct your fine tuning. Most manufacturers of pick-up systems don't give any recommendations regarding the ideal settings, they suggest that you adjust the system to your personal taste (e.g. while listening to your favorite record).
Adjustments for MM systems
Input impedance: 47 kohms
Input capacitance: 15 pF
By using switches 1 and 2 (adjustment units ⑦) you can connect additional matching capacitances. For an overview over possible settings and values, please refer to the following chart.
Table of values (capacitance)
| Switch “ON” Capacitance | |
| none 15 pF | |
| 1 115 pF | |
| 2 235 pF | |
| 1+2 350 pF |
Configuring the TEP 302
Adjustments for MC systems
Input impedance: 1000 ohms
Input capacitance: 15 pF
The permanent input resistor cannot be deactivated. The input impedance can be adjusted by using switches 3 to 6 (adjustment units ⑦). All matching resistors are connected in parallel, therefore allowing impedance values between 99 ohms (all resistors used) and 1000 ohms (no additional resistors used).
This is how you can find the best settings:
First listen to your favorite record using the highest impedance, then the lowest, and finally select a resistor with a value of about 600 ohms. Now try different adjustments until you get the results you want. All values can be found in the table below.
Keep in mind to set both channels to the same value!
Table of values (impedance)
| Switch “ON” Impedance Switch “ON” | Impedance | ||
| none 1000 ohms | |||
| 6 783 ohms 3 130 ohms | |||
| 5 600 ohms 3+6 126 ohms | |||
| 5+6 514 ohms 3+5 | 120 ohms | ||
| 4 405 ohms 3+5+6 | 116 ohms | ||
| 4+6 364 ohms 3+4 | 109 ohms | ||
| 4+5 319 ohms 3+4-5 | 102 ohms | ||
| 4+5+6 293 ohms 3-4+5+6 | 99 ohms | ||
Operation
Once the TEP 302 is properly set up, the unit is fully functional after switching it on.
Please consider that it takes around 50 hours of operation until the TEP 302 reaches its full sonic quality.
Switching on/off
Push the power button on the front panel to switch the unit on and off. While the appliance is turned on, the blue Thorens writing is illuminated.
Always turn on the TEP 302 first and the amplifier(s) afterwards. For shutting down the system, repeat the steps in reverse order.
Ultimately put on a record and slowly increase the volume at the amplifier.
When the needle touches the record you may hear some cracking noises.
Ambience ④
Adjust the brightness of the blue illuminated Thorens logo at the front panel by jiggering the rotary switch ④ (see drawing at p. 7).
Maintenance
Cleaning
Remove dust by wiping the unit with a soft dry cloth. The chromium front-plate can be polished with a soft purpose-designed cloth. If necessary use a soft glass-cleaning detergent on a soft cloth. The wooden side-cheeks can be cleaned in the same way.
Never use benzine, thinner, alcohol or other volatile agents and avoid spraying cleaning detergents into the ventilation slots on the cover!
No user-serviceable parts inside. Unauthorized opening, repair or modifications of the unit will result in loss of warranty.
TO PREVENT RISK OF ELECTRICAL SHOCK, DO NOT OPEN THE POWER SUPPLY UNIT.
Specifications
| System | Phono Pre-Amplifierfor MM- or MC-pickup systems |
| RIAA equalisation | ± 0.5 dB (20 Hz - 20 kHz) |
| Gain | 40 dB (MM), 60 dB (MC) |
| Input | asymmetric RCA connector |
| Output | asymmetric RCA connector |
| Power supply | depending on your countrysee p. 7 |
| Power consumption | 6 W max.6 W idleno stand-by |
| Dimensions (WxHxD) | 9.1 x 2.0 x 6.9"232 x 50 x 174 mm |
| Weight (net) | 6.6 lbs (3.0 kg) |
Made in Germany
Specifications are subject to change without prior notice.
Customer support
Your local Thorens dealer or distributor is the person to contact in all cases related to your Thorens product.
You also may contact Thorens directly:
Thorens Export Company Ltd.
Im Huebel 1, CH-4304 Giebenach, Switzerland
www.thorens.com, info@thorens.com
In case of warranty, please contact your Thorens dealer or distributor at first.
Further service information
www.thorens.com
