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User's Manual Safety Instructions 10. Cleaning — The Component should be cleaned only 1. Read Instructions -– All the safety and operation as recommended in this manual. instructions should be read before the Sunfire Component 11. Non-use Periods—The power cord of the Component is operated. should be unplugged from the outlet when unused for a 2. Retain Instructions — The safety and operating long period of time. instructions should be kept for future reference. 12. Object and Liquid Entry — Car
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User's Manual 15. To prevent electric shock, do not use this polarized This apparatus does not exceed the Class A/Class B plug with an extension cord, receptacle or other outlet (whichever is applicable) limits for radio noise emissions unless the blades can be fully inserted to prevent blade from digital apparatus as set out in the radio interference exposure. regulations of the Canadian Department of Communications. Pour préevenir les chocs électriques ne pas utiliser cette ATTENTION — Le prés
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User's Manual Introduction Dear Friend, Congratulations on your purchase of the 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 equalization of moving magn
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User's Manual Overview The Classic is a preamplifier control center. If you have previous experience with stereo components, you can probably com- Note: The remote control plete the input/output connections and make will only work when the normal use of the basic preamplifier functions front panel power switch without special instructions. We recommend, Mute is in the ON position. however, that you read the entire manual at your earliest convenience. You will find that Power even some of the “co
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User's Manual Front Panel Features 4 1 2 3 5 6 7 8 11 10 9 1. Power Switch 4. Remote window This is the main AC power switch. Flip the switch up to This window should be kept clear of obstruction for apply power to the unit. It is good practice to turn the the remote control to work. volume control down before turning on, and keep it 5. Stereo/Mono Switch down until after about 40 seconds of tube warm-up time (when the MUTE lamp turns off, and the ON This sums the left and right inputs so the ma
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User's Manual 7. Contour On/Off 10. Balance Control In the OFF position, the contour circuits are bypassed This adjusts the relative levels of the two stereo and the two contour controls (11) will have no effect. channels. In its center position, the levels are exactly equal. Clockwise rotation reduces the Left channel In the ON position, the signal frequency response can level, while counterclockwise rotation reduces Right be adjusted by the contour controls to suit your taste. channel level. S
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User's Manual Rear Panel Features 4 5 6 7 8 9 10 11 12 13 14 PHONO/LINE INPUTS U INVERSE N PHONO PHONO S 3 OUTPUTS LINE INPUTS W MOVING MOVING PHONO LINE 1000 COIL MAGNET OUT IN I USE EITHER WATTS T TOTAL C MAIN 1 MAIN 2 TAPE TAPE AUX VIDEO CD TUNER H E L L L D 15 BALANCED REPLACE WITH R R R 2 AMP ORIGINAL TYPE AGC AND RATING 2 ONLY 16 1 120 VAC PASSIVE PRECISION INVERSE RIAA PHONO NETWORK 50/60 Hz S/N WARNING TO REDUCE THE RISK OF FIRE OR ELECTRIC SHOCK DO NOT EXPOSE THIS EQUIPMENT TO RAIN OR M
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User's Manual 6. Tape output 12. Moving Coil phono input These outputs connect to the inputs of a Connect to the output of a turntable tape deck for recording the source which equipped with a moving coil phono is currently selected by the preamplifier. cartridge. Push the rear panel MM/MC selector button IN. Input jacks on your tape deck may be labeled “Line In”, “Aux”, or “Record”, but 13. Moving Magnet phono input do not use “Microphone.” Connect to the output of a turntable It is recommended
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User's Manual Installation Observe the following precautions when AC Power Considerations choosing a location for your Classic vacuum Ensure that the unit is plugged into an outlet tube preamplifier: capable of supplying the correct voltage The Classic is an all-vacuum tube specified for your model. design. It may be operated at any angle, and has modest ventilation Care requirements. Do not cover the side If you need to clean the front surface, first turn ventilation slots. off the power and
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User's Manual The Phono stage Moving Magnet phono input The rear panel MM/MC selector button must be OUT for moving magnet cartridges. PHONO/LINE INPUTS The moving magnet phono circuit has a INVERSE PHONO PHONO total gain of 40dB, appropriate for typical high MOVING MOVING PHONO LINE COIL MAGNET OUT IN output moving magnet and moving iron TUNER cartridges. L Its input impedance consists of 47K ohms resistance in parallel with real capacitance. R This prevents the complex input interactions which
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PHONO/LINE INPUTS INVERSE PHONO PHONO MOVING MOVING PHONO LINE COIL MAGNET OUT IN L R PASSIVE PRECISION INVERSE RIAA PHONO NETWORK FROM CD PLAYER User's Manual efforts on the part of the transformer designer circumstances, have a just perceptible are required, and the resulting cost will almost consequence in the audio passband. Infra- always be many hundreds of dollars. Less sonic filtering is thus often somewhat of a expensive transformers will be quiet, but will compromise. In order to elimin
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User's Manual System Configurations The following pages show some typical connections that you might make in your installa- tion. They show how the inputs and outputs of the Classic preamplifier are connected to various audio components. If your turntable is equipped with a Moving In most cases, the turntable ground wire Magnet cartridge, connect its audio outputs to should be connected to reduce any hum the preamplifier’s Moving Magnet inputs as heard in the speakers. shown. Make sure that the
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User's Manual CD player The audio output from your CD player can Any of the line level inputs, such as be connected to the preamplifier’s CD inputs. TUNER, CD, VIDEO, AUX and TAPE can be used by any source component with a line If your CD player has variable outputs, level output, such as DVD, LaserDisc, VCR, this will allow you to adjust the CD player’s reel-to-reel, DAT, TV or satellite receiver. output volume to match the volume of other components in your system, such as the tape deck or tur
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User's Manual Tape Deck The output from your Tape deck connects An external processor can be connected to the preamplifier’s TAPE inputs. These in exactly the same way as a Tape deck: inputs are only selected by using the The external processor outputs preamplifier’s Tape Monitor switch. connect to the preamplifier’s Tape The inputs of your Tape deck connect to inputs. the preamplifier’s TAPE outputs. These The external processor inputs connect outputs are unaffected by the setting of the to
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User's Manual Amplifier If your amplifier has RCA inputs, you can If you are using an electronic crossover to connect them to the preamplifier’s Main 1 or bi-amp or tri-amp your speakers: Main 2 outputs. It does not matter which pair Connect a cable from either of the you use, because they are identical. preamplifier’s main outputs to the Main 2 is provided if you want to run a active crossover’s inputs second amplifier, perhaps to play speakers in Connect the crossover’s High, Mid, another
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User's Manual Amplifier If your 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. Amplifier Connections: balanced XLR System Configurations 17
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User's Manual Specifications Line Voltage Phono Inputs Units built for 110V-120V line voltage can RIAA curve be converted to 220V-240V by means of a Moving Magnet input modification. This is not simply a switch, and Gain = 40dB to tape out must be performed by a Sunfire Authorized Overload = 100mV @ 1 kHz. Service Station. Contact Sunfire Technical Input Impedance = 47Ω Services for more information. Noise: better than 82 dB, IHF-A, below 10mVrms at 1 kHz Muting System Moving Coil input The Sun
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User's Manual Troubleshooting No sound. In view of the Classic’s input/output The preamplifier’s power may be off, flexibility, the many connecting cables to and the amplifier off, line cords unplugged, from the components which may be con- AC fuses blown, or the power may be nected to it, and the large number of possibili- off at the wall socket or power strip. ties for mis-set switches both on the Classic No sound (the power is on) and on the various ancillary components operating with it, o
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User's Manual Turntables and tape decks are sensitive Loud howl, squeal, or whistle. to the external hum fields created by many The Tape Monitor switch is engaged power amplifiers, and sometimes to the hum while microphones (in the same room fields of other house appliances (such as a as the speakers) are connected to a refrigerator on the other side of the wall). It is tape deck for recording. important that signal cables in general, and the turntable signal leads in particular, should Put
