Trilogy 907 User manual

907
User Manual

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thank you
Welcome
Firstly, thank you for purchasing your Trilogy Audio Systems 907 Phono Stage, we value your custom.
We strive to design and build world class products that stand the test of time. By reading this manual you can
gain clear understanding of its operation and learn to care for it correctly. In turn, it will reward you with a lifetime
of outstanding performance.
......................................
Nic Poulson.
CEO Trilogy Audio Systems.
www.trilogyaudio.com
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Getting Started
4 Introduction
4 About this manual
5 Unpacking
5 Environment
7 Conguration
7 Gain Setting
9 Cartridge Loading Settings
9 Capacitance setting
9 Resistance setting
11 Connections
13 Power Supply
15 Operation
Care & Service
17 Cleaning
17 Servicing
17 Declarations
Glossary
18 Glossary
Specications/Returns
19 907Specications
19 Returns
Acknowledgements
20 Acknowledgements
contents
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Introduction
We prefer that your Trilogy dealer delivers, installs, sets up and explains your 907’s operation to you.
However, we still recommend that you read through this manual thoroughly and keep it to hand for reference.
Should any part of this manual or the operation of the 907 not be clear to you, please do not hesitate to contact
your Trilogy dealer. If this is not convenient, please contact ourselves directly.
About this manual
From this point on, any information presented on the left hand pages are pictorial representations of the 907.
The left hand pages can be considered as additional information to accompany the written descriptions on the
opposite pages.
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Unpacking
Be careful when unpacking your Trilogy 907, it supplied in two parts:
1.PhonoPreamplierinthesolidaluminiumcasewithcaptivepowerinputcable.
2. Series 900 choke input Power Supply.
Store the packaging safely for future use. It is the ideal method of protecting your investment from damage
during transport.
Environment
Donotsiteeitherunitnearliquids,orplaceliquid-lledcontainersneartheunit. If any liquid does come into
contactwitheitherunitthereisseriouspotentialforanelectricshockorrehazard.Immediatelypulloutthe
mains plug from the wall socket. Contact your dealer to arrange an inspection before further use.
The 907 generates some heat and is cooled by convection. It needs good circulation of room temperature air
under and around it. Do not place either unit near sources of heat such as radiators or in direct sunlight. Do not
enclose in a cupboard. Do not place directly on carpet.
Aat,smoothsurfaceisrequired.Aswithallhighresolutionaudioequipment,your907issensitivetovibration,
strongmagneticeldsandradiointerference.Adedicatedhighperformanceequipmentplatformsitedawayfrom
otherappliancesistheoptimumlocationforthePhonoPreamplier.
ThePowerSupplyshouldbesitedaminimumdistanceof250mmfromthePhonoPreamplier.ThePhono
Preamplierissensitivetomagneticeldswhichmaydegradeperformance.CongurethePhonoPreamplier
beforenalplacementandconnection.
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Conguration
Itisnecessarytocongurethe907forusewithyourchosenphonocartridgebeforeplacingandconnecting
the907toyoursystem.ThebaseofthePhonoPreamplierprovidesaccesstoanumberofswitchesforthis
purpose.
Your phono cartridge will have an optimum working load which should be provided by the cartridge
manufacturer. It is expressed in resistance (R or Ohms) and capacitance (pF or pico Farads). It will also require a
specicgainsettingdependingonitstypeandoutputlevel.
Ifyoucannotobtainthisinformation,orareinanydoubtaboutthecongurationprocedure,contactyourdealer
for advice.
Toobtainthecorrectcongurationfollowthesettingsgivenonthetablesbelow.Iftheexactvaluesspeciedby
your cartridge manufacturer cannot be achieved, select the nearest value available from the table.
IMPORTANT!
Ifyoudomakechangestothecongurationwhilsttheunitispowered,mutetheconnectedampliertoavoid
damage to your loudspeakers.
Gain Setting
These switches are independent for each channel and must be set the same for left and right channels. Follow
the map on the unit’s base in conjunction with the table below to achieve the required gain.
Cartridge Type Cartridge Output Gain Position
Moving Magnet (MM) 3-5mV GAIN 1
Moving Coil (MC) 0.7-1.5mV GAIN 2
Moving Coil (MC) 0.25-0.7mV GAIN 3
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Cartridge Loading Settings
These switches are independent for each channel and must be set the same for left and right channels. Follow
the map on the unit’s base in conjunction with the tables below to achieve the required loading.
Capacitance setting:
Capacitance required C1 Position C2 Position
100pF Off Off
200pF On Off
320pF Off On
420pF On On
Resistance setting:
Resistance
required
R1 Position R2 Position R3 Position R4 Position
47 KOhms Off Off Off Off
1K75 Ohms On Off Off Off
1K Ohms Off On Off Off
650 Ohms On On Off Off
400 Ohms Off Off On Off
330 Ohms On Off On Off
250 Ohms On On On Off
100 Ohms Off Off Off On
70 Ohms On On On On
IMPORTANT!
Ifyoudomakechangestothecongurationwhilsttheunitispowered,mutetheconnectedampliertoavoid
damage to your loudspeakers.
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Connections
It is good practice to complete all interconnections before switching on to avoid any damage to your
loudspeakerswhilepluggingin.DoublecheckthePhonoPreamplierscongurationswitchesbeforeconnecting
to your system.
The rear panel features 4 RCA phono sockets. Connect the phono plugs from the turntable’s cartridge to the left
and right sockets marked “cartridge”. Red denotes the right channel, white or black denotes the left channel. The
907outputsshouldbeconnectedtoasuitablepreamplier.Doublecheckleftandrightchannelsareconnected
correctly. If a turntable arm earth connection is provided, it can be connected to the earth binding post between
the sockets. Other arm cable connector types will require an adaptor; seek advice from your Trilogy dealer.
ConnectthecaptivecableonthePhonoPreampliertothesocketonthePowerSupply.
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Power Supply
Warning!DonotattempttousethePhonoPreamplierwithanyotherDCsupply.Damagemayresultandthe
warranty will be null and void.
The IEC inlet on the Power Supply provides the unit with power. Connect with the supplied AC input cable. It can
be left connected at all times. If the 907 is not being used for extended periods of time, switch off at the mains
outlet.
The AC input voltage has been set for the country it was purchased in. Check that the label on the rear panel of
the Power Supply matches your AC supply voltage before plugging in. The AC inlet cable provided should be
used. If another cable is used check, it is wired correctly.
The wires in the AC input cable supplied are coloured in accordance with the following code:
Green and yellow...............Earth
Blue................................Neutral
Brown..................................Live
WARNING! The Power Supply must be earthed. Do not disconnect the AC earth at any time. Danger of electric
shock!Ifindoubtaboutanyaspectofpowersupply,consultyourTrilogydealeroraqualiedelectrician.
A direct connection to a mains outlet is best for your 907, avoid adapters. To realise your 907’s full potential
we recommend high quality mains conditioning. See www.Isol-8.co.uk for more on power supply and system
solutions from our acclaimed sister company.
The IEC inlet carries a ceramic 315mA T (time delay) fuse. If the unit stops working, check and replace this fuse
with one of the same type and value if necessary. If the fuse repeatedly fails, do not use the unit and contact your
Trilogy dealer for service.
WARNING! Failure to replace the fuse with the same type and rating will invalidate the warranty and may result
inanelectricshockand/orrehazard.
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Operation
IMPORTANT!
Whenswitchingthe907onoroff,muteorturnthevolumedowntominimumontheconnectedampliertoavoid
damage to your loudspeakers.
Oncethe907hasbeencorrectlyconguredandinstalleditneedsnofurtherattention.TheredLEDonthefront
ofthePhonoPreamplierindicatespowerfromthePowerSupplyispresent.Bluelightfromunderneaththe
PhonoPreamplierindicatesthatthepreampliersshuntvoltageregulatorsareoperatingcorrectly.
As with all high resolution audio equipment, a period of break in is required before the unit will achieve its full
performance potential.
As the 907 consumes little power, we recommend leaving it powered permanently for optimum performance.
ThePreamplierwillbecomewarmtothetouchafteraperiodoftime,thisisnormalanddoesnotindicateafault
condition.
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Cleaning
Dust the unit regularly with a soft cloth or soft brush. For more stubborn marks make sure the unit is switched off
and disconnected from the power supply. Use a slightly damp cloth with a very small amount of mild detergent
such as washing up liquid. Do not use a wet cloth.
Becarefulwhencleaning.Neveruseabrasivesoralcoholbasedagents,theywillharmthesurfacenish.Donot
allow the unit to become wet when cleaning.
Servicing
Your 907 has been designed to provide a lifetime of reliable service and should not need servicing if operating
normally.
There are no user serviceable parts inside. Do not open or attempt to repair the unit. Check if the captive
DC cable is damaged or shows signs of wear periodically. Refer to your authorised Trilogy dealer for repair if
necessary.
Declarations
This product is guaranteed against defects in material and workmanship for 3 years from the date of purchase.
Proof of purchase is required.
The Guarantee is not transferable and is offered to the original purchaser only. This guarantee does not limit your
statutory rights within the country of purchase.
Failure to comply with any of the above instructions during installation or operation will render the manufacturer’s
warranty null and void.
Marking by the “CE” symbol (shown left) indicates compliance of this device with the EMC (Electromagnetic
Compatibility) and LVD (Low Voltage Directive) standards of the European Community
The 907 has been tested to ensure that its operation is not adversely affected by normal background levels of
radio frequency interference, and that it does not itself generate excessive amounts of radio frequency energy.
If your 907 exhibits sensitivity to nearby radio frequency devices or is suspected of affecting another device,
increase the distance between them. If the problem persists, consult your Trilogy dealer.
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Glossary
AC Alternating current: The electrical polarity reverses over time. Used mostly for high voltage
power transmission such as mains.
Burn In Period of time, which a new assembly takes to reach mechanical and electrical equilibrium.
Cartridge Loading The electrical termination the phono cartridge “sees” when connected.
Capacitance The ability to hold an electrical charge, resulting in decreasing impedance with frequency.
ChokeInput Useofaninductortoprovidenearconstantdrawfromthepowersupplyrectier.
A conventional capacitor input will draw current in pulses, thus generating noise.
DC Direct current: The electrical polarity is constant. Used mostly for powering active circuits.
Gain The ability of a circuit to increase the power or amplitude of a signal from the input
to the output.
MagneticField Anexpressionofelectromagnetism.Whencurrentowsinaconductoramagneticeldis
  generatedinproportion;justaswhenaconductorisimmersedinachangingmagneticeld,
  acurrentwillowintheconductor.
Resistance The degree to which an element opposes an electric current through it.
Shunt Voltage A circuit which provides a constant voltage for a load using a constant current source
Regulator to provide the current and a control element that regulates the voltage across the load.
Series Voltage A circuit which provides a constant voltage for a load using a control element in line
Regulator with the power rail and the load.
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907Specications
Size(907Preamplier)   150*220*38 (W*D*H)
Sizeincludingconnectors(907Preamplier) 150*235*38 (W*D*H)
Weight(907Preamplier)   2.0 Kg
Size(PSU)    132*225*57 (W*D*H)
Weight (PSU) 2.85 Kg
PackagedSize(combined)   330*290*195
Packaged Weight (combined) 5.9 Kg
Power consumption 10 Watts
Inputs 2 RCA phono sockets
Input Impedance 47 K (user adjustable)
Input Capacitance 100pF (user adjustable)
Gain 50dB, 64dB or 70dB (user adjustable)
Frequency response (to RIAA curve) 20-20KHz+/-0.25dB
Output impedance 150 Ohms
Phase Phase correct (non inverting)
Specicationsubjecttochange.
Returns
Should it be necessary for your 907 to be serviced, please send it in the original packaging to your dealer. If this
is not possible please contact us directly and request a Return Authorisation Number. Please mark this RAN
number on the outer packaging in the space provided.
Please do not send products back to us without this number as we will not accept liability for the product. If a
product is not returned to us in its original packaging, after servicing we will return it, in Trilogy packaging and a
nominal charge will be made.
Disposal and recycling
At the end of the 907s working life it must be disposed of correctly, it is made to the highest standards with
materialswhichcanberecycledwhereverpossible.Donotdisposetolandll,contactyourdealerorTrilogyfor
information regarding return for correct disposal.
Whilst the information given in this document is correct at the time of printing, small production changes in
the course of our Company’s policy of improvement through continued research and development might not
necessarilybeindicatedinthespecication.
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