Linn PRETEK Manual de usuario
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NTRODUCTION Thank you for buying this Linn product. As with all our products, the Linn
PRETEK preamplifier was designed and manufactured to outperform the competition. You will
find that it is capable of excellent sound performance when partnered with other high quality
components. The PRETEK is made with top quality components and is thoroughly tested before
it leaves our factory.
The PRETEK is ideally suited for use with the Linn POWERTEK or other high quality power amplifiers.
The PRETEK has six inputs, including a low noise phono input, which can be used with either moving
magnet or moving coil cartridges.
Facilities are provided for separate 'record' and 'listen' paths. This not only allows the recording of one
source while listening to another, but also eliminates the need for conventional tape monitor switching.
This simplifies the circuit and improves performance.
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PRETEK amplifier
Owners manual and registration card
Mains lead
Spare fuse
INSTALLATION Unpack the amplifier, retain the packing for future use. Ensure that the amplifier
is grounded and that adequate ventilation is provided. Position the preamplifier far enough away from
the turntable to avoid hum.
MAINS CONNECTIONS
WARNING - THIS APPLIANCE MUST BE EARTHED
Use the earthed moulded mains lead supplied. Never use an unearthed plug or adapter.
IMPORTANT
The wires in the mains lead are coloured in accordance with the following code:
Green-and-yellow: Earth
Blue: Neutral
Brown: Live
As the colours of the wires in the mains lead of this appliance may not correspond with the coloured
markings identifying the terminals in your plug, proceed as follows:
♦The wire that is coloured green-and-yellow must be connected to the terminal in the plug, which
is marked with the letter E or by the earth symbol or coloured green or green-and-yellow.
♦The wire that is coloured blue must be connected to the terminal that is marked with the letter N
or coloured black.
♦The wire that is coloured brown must be connected to the terminal that is marked with the letter L
or coloured red.
CONTENTS & INSTALLATION
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WARNING The pre-amplifier and the power amplifier must be switched off before connecting or
disconnecting any of the plugs on the rear panel.
For all the following input connections ensure that the left channel plug from the source is connected to
the left channel socket on the pre-amplifier, and likewise for the right channel connection.
All the inputs on the Pretek are RCA phono. Good quality leads should be used when connecting signal
sources to the preamplifier. Your dealers will be able to supply all the necessary interconnect leads.
There is a binding post for the phono earth connection located above the phono inputs. A switch to the
left of the phono sockets selects between moving-coil and moving-magnet cartridges.
If you are using a moving-coil cartridge the switch should be out and your turntable should be connected
to the sockets marked MC. For moving-magnet cartridges, the switch should be pushed in and the
sockets marked MM should be used.
NOTE The amplifier should be switched off before pressing the phono input switch.
The sockets marked line output provide the signal to be routed to the power amplifier.
INPUT CONNECTIONS
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THE LINN PERFORMANCE ADVANTAGE.In many cases it is possible to use the Linn PRETEK
preamplifier with multiple power amplifiers to increase significantly the performance of the system. For
more information on the performance advantages of passive bi-amplification or tri-amplification, and
AKTIV multi-amplifier systems, consult your local authorised Linn retailer.
OPERATIONS & CONTROLS When the mains is applied and the power button is pressed, the power
LED will light up immediately and the amplifier will operate a few seconds later.
The LISTEN switch selects which source is fed to the “Pre-out” sockets at the rear of the unit. These
sockets should be connected to the input sockets of the power amplifier.
The RECORD switch selects which source is fed to the two pairs of tape output sockets.
NOTE When recording make sure you do not switch the RECORD selector to the tape that you are
using to record as it may result in an alarming noise from the tape machine. The LISTEN switch selects
which signal source is fed to the loudspeakers.
The MONO switch converts the signals fed to the loudspeakers to mono i.e. it adds left and right
together.
The MUTE switch completely silences the loudspeakers without affecting the volume control setting.
OPERATIONS & CONTROLS
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This controls the listening level and the left/right balance. To alter the left/right balance, grasp the outer
part of the knob and rotate the inner part until the required balance is achieved.
FUSE DETAILS TO check the fuse, unplug the mains cord and, using a small screwdriver, flick
out the fuse carrier on the mains inlet connector. Check the fuse and replace if necessary with the spare
one provided.
If another fuse blows then there is possibly a fault with the PRETEK and the complete amplifier should be
returned to your Linn dealer.
VOLUME AND BALANCE
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TURNTABLES For best results a turntable should be placed on a small, light, rigid shelf
POWER SUPPLIES Take care not to position too close to signal leads, turntables or pre-amplifier.
AMPLIFIERS Pre and power amplifiers may create hum if positioned too close together.
Experiment by moving components when the system is on but not playing music (although it is best to
turn the volume down whilst actually moving the components).
LOUDSPEAKERS Loudspeakers should be positioned correctly. They should be mounted on rigid
stands and not subject to any rocking movement. All Linn speakers except NEXUS and HELIX are
designed to be placed close to the wall.
CLEAN CONTACTS It is important that the electrical contacts in a hi-fi system are kept mechanically
sound and clean. Unplugging and replugging all the connectors occasionally will effectively clean
contacts.
WARNING This should be carried out after the mains supply has been switched off.
INTERCONNECT LEADS Correct cables should be used. We recommend good quality copper cable for
interconnects loads and advise 4mm2multicore copper cable, such as Linn K20 for speaker leads.
Your Linn Dealer can supply hi-fi quality interconnects for linking all your hi-fi components.
FUSE PROTECTION A fuse is fitted to the power input socket on the rear of the PRETEK. Please
note that the fuse holder also contains one spare fuse.
The Linn PRETEK preamplifier is designed for a long life and any servicing should be carried out by an
authorised dealer.
Dust or finger marks can be removed by using a soft damp cloth. Avoid the use of domestic cleaning
products.
GENERAL SYSTEM INSTALLATION
MAINTENANCE
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This product is guaranteed under the conditions that apply in the country ofpurchase.
In addition to any statutory rights the customer may have, we undertake to replace any parts, which have
failed due to faulty manufacture. To help us, please return your completed registration card to Linn or
your national distributor.
This will enable you to receive the Linn RECORD Newsletter, containing information on merchandise, the
Linn SELEKT record scheme and new developments at Linn.
WARNING Refer all enquiries to authorised dealers only. Unauthorised servicing or dismantling of
the product invalidates the manufacturer's warranty.
If you are in any doubt please contact your nearest Linn dealer. For information on your nearest Linn
dealer contact the Linn factory in Scotland or your national distributor.
IMPORTANT
Please keep a copy of the sales receipt to establish the purchase date of the product.
Please ensure that your equipment is insured by you during any transit or shipment for repair.
LINN PRODUCTS UMITED, FLOORS ROAD, WATERFOOT. EAGLESHAM,
GLASGOW, G76 OEP. SCOTLAND. TELEPHONE: (041) 307 7777
FACSIMILE: (041) 644 4262
GUARANTEE & SERVICE
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For 500mV output
INPUTS
Moving magnet and moving coil cartridges (switch selected)
MM; sensitivity - 2.1mV load – 47Kohms//80pF
MC: sensitivity – 210uV load – 100ohms//4.7nF
All auxiliary/tape inputs – l90mV/10Kohms
Maximum 14V peak input
OUTPUTS
Tape outputs = auxiliary input level (unity gain)
600 ohms output impedance
MAINS SUPPLY/FUSE
T3.15A, all voltages
15VA maximum
DIMENSIONS
Width - 430mm Depth - 350mm Height - 90mm
WEIGHT
7kg
TECHNICAL SPECIFICATIONS
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