Sunfire Classic Vacuum Tube Preamplifier Скачать руководство пользователя страница 2

2

User's Manual

Safety Instructions

1. Read Instructions

 -– All the safety and operation

instructions should be read before the Sunfire Component
is operated.

2. Retain Instructions

 — The safety and operating

instructions should be kept for future reference.

3. Heed Warnings

 — All warnings on the Component and

in these operating instructions should be followed.

4. Follow Instructions 

— All operating and other instruc-

tions should be followed.

5. Water and Moisture

 — The Component should not be

used near water - for example, near a bathtub, washbowl,
kitchen sink, laundry tub, in a wet basement, or near a
swimming pool, etc.

6. Ventilation

 — The Component should be situated so

that its location or position does not interfere with its
proper ventilation. For example, the Component should
not be situated on a bed, sofa, rug, or similar surface that
may block any ventilation openings; or placed in a built-in
installation such as a bookcase or cabinet that may
impede the flow of air through ventilation openings.

7. Heat

 — The Component should be situated away from

heat sources such as radiators, or other devices which
produce heat.

8. Power Sources 

— The Component should be connected

to a power supply only of the type described in these opera-
tion instructions or as marked on the Component.

9. Power Cord Protection

 — Power-supply cords should be

routed so that they are not likely to be walked upon or
pinched by items placed upon or against them, paying
particular attention to cords at plugs, convenience recep-
tacles, and the point where they exit the Component.

10. Cleaning

 — The Component should be cleaned only

as recommended in this manual.

11. Non-use Periods

—The power cord of the Component

should be unplugged from the outlet when unused for a
long period of time.

12. Object and Liquid Entry 

— Care should be taken so

that objects do not fall into and liquids are not spilled into
the inside of the Component.

1

3. Damage Requiring Service

 — The Component should

be serviced only by qualified service personnel when:

A

. The power-supply cord or the plug has been damaged; or

B

. Objects have fallen, or liquid has spilled into the

Component; or

C.

 The Component has been exposed to rain; or

D.

 The Component does not appear to operate normally

or exhibits a marked change in performance; or

E.

 The Component has been dropped, or its cabinet damaged.

14. Servicing

 — The user should not attempt to service

the Component beyond those means described in this
operating manual. All other servicing should be referred to
qualified service personnel.

Safety Instructions

Содержание Classic Vacuum Tube Preamplifier

Страница 1: ......

Страница 2: ...o a power supply only of the type described in these opera tion instructions or as marked on the Component 9 Power Cord Protection Power supply cords should be routed so that they are not likely to be walked upon or pinched by items placed upon or against them paying particular attention to cords at plugs convenience recep tacles and the point where they exit the Component 10 Cleaning The Componen...

Страница 3: ...las limites applicables aux appareils numériques de class A de class B selon le cas prescrites dans le règlement sur le brouillage radioélectrique édicté par les ministere des communications du Canada Safety Instructions and Table of Contents Safety instructions 2 3 Introduction 4 Features 4 Unpacking 4 Overview 5 Front panel features 6 7 Rear panel features 8 9 Installation AC power and connectio...

Страница 4: ...e Sunfire Classic Preamplifier We believe its sophisticated engineering and meticulous craftsmanship will provide you with many years of listening enjoyment At the heart of the Classic is a high perfor mance control preamplifier with extremely low noise and distortion wide dynamic range and a high degree of control flexibility An optional phono board may be added for precise RIAA phono equalizatio...

Страница 5: ...r Contour tone controls Balance Mono Stereo Tape Monitor Tone on off Mute TO REDUCE THE RISK OF FIRE OR ELECTRIC SHOCK DO NOT EXPOSE THIS EQUIPMENT TO RAIN OR MOISTURE WARNING S N PASSIVE PRECISION INVERSE RIAA PHONO NETWORK 2 AMP AGC OUTPUTS LINE INPUTS PHONO LINE INPUTS REPLACE WITH ORIGINAL TYPE AND RATING ONLY 120 VAC 50 60 Hz R L R L R L MAIN 1 MAIN 2 TAPE TAPE AUX VIDEO CD TUNER MOVING COIL ...

Страница 6: ... in circuit whenever the Tape Monitor switch is en gaged 1 Power Switch This is the main AC power switch Flip the switch up to apply power to the unit It is good practice to turn the volume control down before turning on and keep it down until after about 40 seconds of tube warm up time when the MUTE lamp turns off and the ON lamp stops blinking and turns on continuously If you prefer you may leav...

Страница 7: ... levels of the two stereo channels In its center position the levels are exactly equal Clockwise rotation reduces the Left channel level while counterclockwise rotation reduces Right channel level Small movements off center produce smaller shifts in the stereo image per degree of rotation than near the extreme left and right position This makes slight trimming of levels more convenient 11 Contour ...

Страница 8: ...ger current rating than 2 A 3 Accessory outlets These three unswitched AC outlets are LIVE whenever the unit s line cord is plugged into an active AC receptacle They can be used to supply AC power to other components of your system including your amplifier The total power draw must not exceed 1000W Verify that all component power switches are OFF before plugging any component line cords into these...

Страница 9: ...f the CD player so that when you switch from Phono to CD to Tuner the volume level will remain approximately the same 11 Tuner input Connect to the line level output from a FM or AM FM tuner 12 Moving Coil phono input Connect to the output of a turntable equipped with a moving coil phono cartridge Push the rear panel MM MC selector button IN 13 Moving Magnet phono input Connect to the output of a ...

Страница 10: ...Do not place heavy objects on top of the unit AC Power Considerations Ensure that the unit is plugged into an outlet capable of supplying the correct voltage specified for your model Care If you need to clean the front surface first turn off the power and then use a slightly damp ened cloth rubbing with the grain Be careful not to scratch the front window Connection Tips Before setting up your new...

Страница 11: ...se small response shifts in some systems When plugging the cables into the Classic s sockets be sure each plug is inserted fully into the socket making a tight fit You can plug the turntable line cord into one of the accessory outlets on the rear panel of the Classic preamplifier Moving Coil phono input The rear panel MM MC selector button must be IN for moving coil cartridges The two inputs marke...

Страница 12: ...d turntable motor rumble If not filtered out of the audio signal this sub audible energy can overload tape recorders waste amplifier power and drive woofers into excessive cone excursions causing intermodulation distortion audible as muddy bass Normally group delay an unavoidable consequence of the rapid attenuation of sub sonic response can under certain musical circumstances have a just percepti...

Страница 13: ...n is in the OUT position If you have a Moving Coil cartridge use the preamplifier s Moving Coil inputs and push the MM MC button inwards System Configurations In most cases the turntable ground wire should be connected to reduce any hum heard in the speakers Never connect a line level source compo nent directly to the preamplifier s MC or MM inputs as they will be overloaded They are specially des...

Страница 14: ... system such as the tape deck or turntable When you switch from one component to the next the initial volume would then be similar If you want your CD player to have an extra special sound you can use the Inverse RIAA circuits as shown on page 12 System Configurations CD player Any of the line level inputs such as TUNER CD VIDEO AUX and TAPE can be used by any source component with a line level ou...

Страница 15: ... outputs are unaffected by the setting of the volume control or the contour controls System Configurations Tape Deck An external processor can be connected in exactly the same way as a Tape deck The external processor outputs connect to the preamplifier s Tape inputs The external processor inputs connect to the preamplifier s Tape outputs Select the source you would like to listen to such as CD an...

Страница 16: ...rive an active subwoofer A third amplifier can be connected to the balanced XLR outputs if you have another set of speakers in a third room Note that all the amplifiers would be playing the same music selection System Configurations If you are using an electronic crossover to bi amp or tri amp your speakers Connect a cable from either of the preamplifier s main outputs to the active crossover s in...

Страница 17: ...amplifier has XLR inputs it can be connected to the balanced audio outputs as shown The balanced connections are preferred as they provide superior noise cancellation and are less susceptible to interference than unbalanced lines System Configurations Amplifier ...

Страница 18: ...utputs to elimi nate turn on transients It will not interrupt the tape outputs Muting is accomplished by a shorting relay which when it is open is out of the circuit and hence has no effect on the signal It is controlled by a toggling device so muting cannot be partially on This muting system will turn off the signal to your power amplifier at these times For about 40 seconds after the initial pow...

Страница 19: ...rent surge which blew the fuse or circuit breaker protecting that entire branch circuit In some houses having duplex AC wall sockets the lower one is permanently live while the upper one intended for lamps is controlled by a wall switch near a doorway was the preamp s AC cord accidentally plugged into the switched socket Is the preamp s AC cord plugged into a clock timer which is presently off or ...

Страница 20: ... by many power amplifiers and sometimes to the hum fields of other house appliances such as a refrigerator on the other side of the wall It is important that signal cables in general and the turntable signal leads in particular should not run close to and parallel with AC power cords nor close to a power transformer or motor including that in the base of the turntable As a test you might try and d...

Страница 21: ...peaker terminals of each channel but be sure to check with the amplifier manufacturer first some power amps become unstable and burn out when certain values of capacitance are connected at their output terminals A simple cure is to place the power amp near the speakers and use short wires then use long well shielded signal cables from the preamp to the power amp This shouldn t cause any problems u...

Страница 22: ... MC Phono is 60 dB The gain may be changed independently of MM Phono as follows 60 dB Stock R4 and R28 are 62ohms 1 2W 65 dB change R4 and R28 to 33 ohms 1 2W 70 dB change R4 and R28 to 18 ohms 1 2W Changing the input impedance of the phono stage Change the jumper position on the headers labeled J6 J9 to the value recom mended by your phono cartridge manufac turer Most moving magnet cartridges wor...

Страница 23: ...hall not in any event include property or any other incidental or consequential damages which may result from the failure of this product Some states do not allow limitations on how long an implied warranty lasts and or do not allow the exclusion or limitation of incidental or consequential damages so the above limita tions or exclusions may not apply to you This Warranty gives you specific legal ...

Страница 24: ...Manual Part number 913 012 00 Rev C ...

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